8413656
Beschreibung
| Frage | Antworten |
| Which type of traffic is designed for a native VLAN? management user-generated un tagged tagged | tagged |
| What is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin? 2 15 3 52 1900 17 | 15 |
| Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.) They automatically switch the path to the destination network when the topology changes -They Improve network security -They take less time to converge when the network topology changes -They use fewer router resources -They improve the efficiency of discovering neighboring networks. | -They Improve network security -They use fewer router resources |
| S 0.0.0.0/0 [1/0] via 172.16.2.2 S 192.168.2.0/24 is directly connected. Serial 0/0/0 S 192.168.2.0/24 [1/0] via 172.16.2.2 C 172.16.2.0/24 is directly connected. Serial0/0/0 | S 192.168.2.0/24 is directly connected. Serial 0/0/0 |
| In what situation would a Layer 2 switch have an IP address configured? -when the Layer 2 switch is using a routed port -when the Layer 2 switch needs to be remotely managed -when the Layer 2 switch is the default gateway of user traffic -when the Layer 2 switch needs to forward user traffic to another device | when the Layer 2 switch needs to be remotely managed |
| A network administrator adds the default-information originate command to the configuration of a router that uses RIP as the routing protocol. What will result from adding this command? -The router will only forward packets that originate on directly connected networks. -The router will propagate a static default route in its RIP updates, if one is present -The router will be reset to the default factory information -The router will not forward routing information that is learned from other routers | The router will propagate a static default route in its RIP updates, if one is present |
| -It identifies the type of encapsulation that is used -It identifies the subinterface -It identifies the number of hosts that are allowed on the interface -It identifies the native VLAN number | It identifies the VLAN number |
| What are three functions provided by the syslog service? (Choose three.) -to specify the destinations of captured messages -to periodically poll agents for data -to select the type of logging information that is captured -to gather logging information for monitoring and troubleshooting -to provide traffic analysis -to provide statistics on packets that are flowing through a Cisco device | -to specify the destinations of captured messages -to select the type of logging information that is captured -to gather logging information for monitoring and troubleshooting |
| R1# copy running-config tftp Address or name of remote host [ ]? When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt? 192.168.10.2 192.168.11.252 192.168.11.254 192.168.9.254 192.168.10.1 | 192.168.11.252 |
| -10.130.5.76 -209.165.200.245 -203.0.113.5 -172.16.1.10 -192.0.2.1 -209.165.200.226 | 209.165.200.226 |
| What is the reason that an ISP commonly assigns a DHCP address to a wireless router in a SOHO environment? -better connectivity -easy IP address management -better network performance -easy configuration on ISP firewall | easy IP address management |
| -The inside and outside NAT interlaces have been configured backwards -The inside global address is not on the same subnet as the ISP -The address on Fa0/0 should be 64.100.0.1. -The NAT source access list matches the wrong address range. | The inside global address is not on the same subnet as the ISP |
| What network prefix and prefix-length combination is used to create a default static route that will match any IPv6 destination? :/128 FFFF:/128 ::1/64 ::/0 | ::/0 |
| Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment? --ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.100.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.255.0 ip default gateway 192.168.100.1 --ip dhcp excluded-address 192.168.100.1 192.168.100.9 ip dhcp excluded-address 192.168.101.254 ip dhcp pool LAN POOL-100 ip network 192.168.100.0 255.255.254.0 ip default-gateway 192.168.100.1 --ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.101.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.254.0 default-router 192.168.100.1 --dhcp pool LAN-POOL 100 ip dhcp excluded-address 192.168.100.1 192.168.100.9 ip dhcp excluded-address 192.168.100.254 network 192.168.100.0 255.255.254.0 default-router 192.168.101.1 | ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.100.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.255.0 ip default gateway 192.168.100.1 |
| 0.0.0.0 172.16.100.64 172.16.100.2 110 791 | 172.16.100.2 |
| Refer to the exhibit. What is the administrative distance value that indicates the route for R2 to reach the 10.10.0.0/16 network? 1 0 90 20512256 | 1 |
| Which statement is correct about Ethernet switch frame forwarding decisions? -Unicast frames are always forwarded regardless of the destination MAC address -Frame forwarding decisions are based on MAC address and port mappings in the CAM table -Cut-through frame forwarding ensures that invalid frames are always dropped -Only frames with a broadcast destination address are forwarded out all active switch ports | Unicast frames are always forwarded regardless of the destination MAC address |
| Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol? floating static route default static route summary static route standard static route | floating static route |
| The time passed since the syslog server has been started the time when the syslog message was issued the time on the router when the show logging command was issued the time pass since the interfaces have been up | the time when the syslog message was issued |
| What statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers? -It is an IOS version that provides only the IPBase feature set. -It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality. -It is an IOS version that offers all of the Cisco IOS Software feature sets. -It is an IOS version that can only be used in the United States of America. | It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality. |
| -Both routers are configured to use NTPv2. -Router R2 is the master, and R1 is the client. -The IP address of R1 is 192. 168. 1. 2. -The IP address of R2 is 192. 168. 1. 2. | Router R1 is the master, and R2 is the client. The IP address of R2 is 192. 168. 1. 2. |
| A network administrator configures a router with the command sequence: R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin R1(config)# boot system rom What is the effect of the command sequence? -The router will copy the IOS image from the TFTP server and then reboot the system. -The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM. -The router will search and load a valid IOS image in the sequence of flash, TFTP, and ROM. -On next reboot, the router will load the IOS image from ROM. | The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM. |
| What is used as the default event logging destination for Cisco routers and switches? -syslog server -console line -terminal line -workstation | console line |
| A network engineer is interested in obtaining specific information relevant to the operation of both distribution and access layer Cisco devices. Which command provides common information relevant to both types of devices? -show port-security -show ip interface -show ip protocols -show mac-address-table -show cdp neighbors | show ip interface |
| -ip route 10.10.0.0 255.255.0.0 Serial 00/0 100 -ip route 10.10.0.0 255.255.0.0 209.165.200.226 100 | ip route 10.10.0.0 255.255.0.0 209.165.200.226 100 |
| -The host with the address 209.165.200.235 will respond to requests by using a source address of 209.165.200.235 -The output is the result of the show ip nat translations command -Traffic with the destination address of a public web server will be sourced from the IP of 192.168.1.10. -The host with the address 209.165.200.235 will respond to requests by using a source address of 192.168.10.10. -The output is the result of the show ip nat statistics command | The output is the result of the show ip nat translations command |
| -RIP v2 -IEEE 802.10 -Spanning Tree -ARP -Rapid Spanning Tree | IEEE 802.10 |
| A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228.236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home? -ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443 ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365 -No additional configuration is necessary -ip nat pool mktv 10.18.7.5 10.18.7.5 -ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443 ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365 -ip nat outside source static 10.18.7.5 209.165.200.225 | ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443 ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365 |
| A Cisco Catalyst switch has been added to support the use of multiple VLANs as part of an enterprise network. The network technician finds it necessary to clear all VLAN information from the switch in order to incorporate a new network design. What should the technician do to accomplish this task? -Erase the startup configuration and reboot the switch -Erase the running configuration and reboot the switch -Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch -Delete the IP address that is assigned to the management VLAN and reboot the switch. | Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch |
| -access-list 4 permit 192.168.10.0 0.0.0.255 -access-list 1 permit 192.168.10.128 0.0.0.127 -access-list 2 permit host 192.168.10.131 access-list 2 permit host 192.168.10.201 -access-list 5 permit 192.168.10.128 0.0.0.63 | access-list 2 permit host 192.168.10.131 access-list 2 permit host 192.168.10.201 |
| What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process? -for hosts on other subnets to receive the information -to notify other hosts not to request the same IP address -for routers to fill their routing tables with this new information -to notify other DHCP servers on the subnet that the IP address was leased | to notify other DHCP servers on the subnet that the IP address was leased |
| -This is an error message that indicates the system is unusable. -This is an alert message for which immediate action is needed -This is an error message for which warning conditions exist -This is a notification message for a normal but significant condition | This is a notification message for a normal but significant condition |
| Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches. At which layer of the three-layer hierarchical network design model do these switches operate? -physical -access -core -data link -distribution | core |
| When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well? -Software Claim Certificate -Unique Device Identifier -End User License Agreement -Product Activation Key | Product Activation Key |
| A network administrator reviews the routing table on the router and sees a route to the destination network 172.16.64.0/18 with a next-hop IP address of 192.168.1.1. What are two descriptions of this route? (Choose two.) -parent route -default route -level 2 child route -ultimate route -supernet route | -level 2 child route -ultimate route |
| -static NAT with a NAT pool -static NAT with one entry -dynamic NAT with a pool of two public IP addresses -PAT using an external interface | PAT using an external interface |
| What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value? -The switches will negotiate via VTP which VLANs to allow across the trunk -Only VLAN 1 will be allowed across the trunk. -Only the native VLAN will be allowed across the trunk -All VLANs will be allowed across the trunk | All VLANs will be allowed across the trunk |
| What is a characteristic of the distribution layer in the three layer hierarchical model? -provides access to the rest of the network through switching, routing, and network access policies -distributes access to end users -represents the network edge -acts as the backbone for the network, aggregating and distributing network traffic throughout the campus | distributes access to end users |
| Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number? -The NTP master will claim to be synchronized at the configured stratum number. -An NTP server with a higher stratum number will become the master. -Other systems will be willing to synchronize to that master using NTP. -The NTP master will be the clock with 1 as its stratum number. -The NTP master will lower its stratum number. | -The NTP master will claim to be synchronized at the configured stratum number. -Other systems will be willing to synchronize to that master using NTP. |
| A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines? -access-group 11 in -access-class 11 in -access-list 11 in -access-list 110 in | access-class 11 in |
| A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.) -vty lines -VTP domain -loopback address -default gateway -default VLAN -IP address | -loopback address -default VLAN -IP address |
| A network administrator configures a router to provide stateful DHCPv6 operation. However, users report that workstations do not receive IPv6 addresses within the scope. Which configuration command should be checked to ensure that statefull DHCPv6 is implemented? -The dns-server line is included in the ipv6 dhcp pool section. -The ipv6 nd managed-config-flag is entered for the interface facing the LAN segment. -The ipv6 nd other-config-flag is entered for the interface facing the LAN segment. -The domain-name line is included in the ipv6 dhcp pool section. | The dns-server line is included in the ipv6 dhcp pool section. |
| Which characteristic describes cut-through switching? -Frames are forwarded without any error checking. -Error-free fragments are forwarded, so switching occurs with lower latency. -Buffering is used to support different Ethernet speeds. -Only outgoing frames are checked for errors. | Error-free fragments are forwarded, so switching occurs with lower latency. |
| A company has an internal network of 172.16.25.0/24 for their employee workstations and a DMZ network of 172.16.12.0/24 to host servers. The company uses NAT when inside hosts connect to outside network. A network administrator issues the show ip nat translations command to check the NAT configurations. Which one of source IPv4 addresses is translated by R1 with PAT? 10.0.0.31 172.16.12.5 172.16.12.33 192.168.1.10 172.16.25.35 | 172.16.25.35 |
| -The default gateway address is not provided in the pool. -No clients have communicated with the DHCPv6 server yet. -The IPv6 DHCP pool configuration has no IPv6 address range specified. -The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation. | The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation. |
| Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled? -ip dhcp pool -ip address dhcp -service dhcp -ip helper-address | ip address dhcp |
| Which kind of message is sent by a DHCP client when its IP address lease has expired? -a DHCPDISCOVER broadcast message -a DHCPREQUEST broadcast message -a DHCPREQUEST unicast message -a DHCPDISCOVER unicast message | a DHCPREQUEST unicast message |
| -A DHCP server must be installed on the same LAN as the host that is receiving the IP address. -R1 is not configured as a DHCPv4 server. -The ip address dhcp command was not issued on the interface Gi0/1. -The ip helper-address command was applied on the wrong interface. | The ip helper-address command was applied on the wrong interface. |
| A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home? -ip nat pool mktv 10.18.7.5 10.18.7.5 -ip nat outside source static 10.18.7.5 209.165.200.225 -ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443* ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365 -ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443 ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365 -No additional configuration is necessary. | ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443 ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365 |
| What is a disadvantage of NAT? -There is no end-to-end addressing. -The router does not need to alter the checksum of the IPv4 packets. -The internal hosts have to use a single public IPv4 address for external communication. -The costs of readdressing hosts can be significant for a publicly addressed network. | There is no end-to-end addressing. |
| Which type of traffic would most likely have problems when passing through a NAT device? -Telnet -IPsec -HTTP -ICMP -DNS | IPsec |
| What benefit does NAT64 provide? -It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses. -It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address. -It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses. -It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks. | It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses. |
| -R1 Gi0/1.12 -R1 S0/0/0 -R2 S0/0/1 -R2 Gi0/1.20 -inbound -outbound | -R1 Gi0/1.12 -outbound |
| Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two.) -destination MAC address -ICMP message type -computer type -source TCP hello address -destination UDP port number | -ICMP message type -destination UDP port number |
| A network administrator is explaining to a junior colleague the use of the lt and gt keywords when filtering packets using an extended ACL. Where would the lt or gt keywords be used? -in an IPv6 extended ACL that stops packets going to one specific destination VLAN -in an IPv4 named standard ACL that has specific UDP protocols that are allowed to be used on a specific server -in an IPv6 named ACL that permits FTP traffic from one particular LAN getting to another LAN -in an IPv4 extended ACL that allows packets from a range of TCP ports destined for a specific network device | in an IPv4 extended ACL that allows packets from a range of TCP ports destined for a specific network device |
| Which three values or sets of values are included when creating an extended access control list entry? (Choose three.) -access list number between 1 and 99 -access list number between 100 and 199 -default gateway address and wildcard mask -destination address and wildcard mask -source address and wildcard mask -source subnet mask and wildcard mask -destination subnet mask and wildcard mask | -access list number between 100 and 199 -destination address and wildcard mask -source address and wildcard mask |
| A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry? -0.0.0.127 -0.0.0.255 -0.0.1.255 -0.0.255.255 -A single ACL command and wildcard mask should not be used to specify these particular networks or other traffic will be permitted or denied and present a security risk. | 0.0.1.255 |
| The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.) -access-class 5 in -access-list 5 deny any -access-list standard VTY -permit 10.7.0.0 0.0.0.127 -access-list 5 permit 10.7.0.0 0.0.0.31 -ip access-group 5 out -ip access-group 5 in | -access-class 5 in -access-list 5 permit 10.7.0.0 0.0.0.31 |
| A network administrator is adding ACLs to a new IPv6 multirouter environment. Which IPv6 ACE is automatically added implicitly at the end of an ACL so that two adjacent routers can discover each other? -permit ip any any -permit ip any host ip_address -permit icmp any any nd-na -deny ip any any | permit icmp any any nd-na |
| Which statement describes a route that has been learned dynamically? -It is automatically updated and maintained by routing protocols. -It is unaffected by changes in the topology of the network. -It has an administrative distance of 1. -It is identified by the prefix C in the routing table. | It is automatically updated and maintained by routing protocols. |
| -The ip route command was used. -The ipv6 route command was used. -Another router in the same organization provided the default route by using a dynamic routing protocol. -The ip address interface configuration mode command was used in addition to the network routing protocol configuration mode command. | Another router in the same organization provided the default route by using a dynamic routing protocol. |
| Which statement is correct about IPv6 routing? -IPv6 routing is enabled by default on Cisco routers. -IPv6 only supports the OSPF and EIGRP routing protocols. -IPv6 routes appear in the same routing table as IPv4 routes. -IPv6 uses the link-local address of neighbors as the next-hop address for dynamic routes. | IPv6 uses the link-local address of neighbors as the next-hop address for dynamic routes. |
| -child route -ultimate route -default route -level 1 parent route | level 1 parent route |
| Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.) -scalability -ISP selection -speed of convergence -the autonomous system that is used -campus backbone architecture | -scalability -speed of convergence |
| -directly attached static route -recursive static route -fully specified static route -floating static route | recursive static route |
| A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network? -ip route 172.16.0.0 255.255.240.0 S0/0/0 200 -ip route 172.16.32.0 255.255.224.0 S0/0/0 200 -ip route 172.16.0.0 255.255.224.0 S0/0/0 100 -ip route 172.16.32.0 255.255.0.0 S0/0/0 100 | ip route 172.16.32.0 255.255.224.0 S0/0/0 200 |
| Which summary IPv6 static route statement can be configured to summarize only the routes to networks 2001:db8:cafe::/58 through 2001:db8:cafe:c0::/58? -ipv6 route 2001:db8:cafe::/62 S0/0/0 -ipv6 route 2001:db8:cafe::/54 S0/0/0 -ipv6 route 2001:db8:cafe::/56 S0/0/0 -ipv6 route 2001:db8:cafe::/60 S0/0/0 | ipv6 route 2001:db8:cafe::/56 S0/0/0 |
| -1 -2 -3 -4 | 3 |
| Which statement is true about the difference between OSPFv2 and OSPFv3? -OSPFv3 routers use a different metric than OSPFv2 routers use. -OSPFv3 routers use a 128 bit router ID instead of a 32 bit ID. -OSPFv3 routers do not need to elect a DR on multiaccess segments. -OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies. | OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies. |
| What happens immediately after two OSPF routers have exchanged hello packets and have formed a neighbor adjacency? -They exchange DBD packets in order to advertise parameters such as hello and dead intervals. -They negotiate the election process if they are on a multiaccess network. -They request more information about their databases. -They exchange abbreviated lists of their LSDBs. | They exchange abbreviated lists of their LSDBs. |
| What does the cost of an OSPF link indicate? -A higher cost for an OSPF link indicates a faster path to the destination. -Link cost indicates a proportion of the accumulated value of the route to the destination. -Cost equals bandwidth. -A lower cost indicates a better path to the destination than a higher cost does. | A lower cost indicates a better path to the destination than a higher cost does. |
| Which three pieces of information does a link-state routing protocol use initially as link-state information for locally connected links? (Choose three.) -the link router interface IP address and subnet mask -the type of network link -the link next-hop IP address -the link bandwidth -the cost of that link | -the link router interface IP address and subnet mask -the type of network link -the cost of that link |
| Which three requirements are necessary for two OSPFv2 routers to form an adjacency? (Choose three.) -The two routers must include the inter-router link network in an OSPFv2 network command. -The OSPFv2 process is enabled on the interface by entering the ospf process area-id command. -The OSPF hello or dead timers on each router must match. -The OSPFv2 process ID must be the same on each router. -The link interface subnet masks must match. -The link interface on each router must be configured with a link-local address. | -The two routers must include the inter-router link network in an OSPFv2 network command. -The OSPF hello or dead timers on each router must match. -The link interface subnet masks must match. |
| A router needs to be configured to route within OSPF area 0. Which two commands are required to accomplish this? (Choose two.) -RouterA(config)# router ospf 0 -RouterA(config)# router ospf 1 -RouterA(config-router)# network 192.168.2.0 0.0.0.255 0 -RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0 -RouterA(config-router)# network 192.168.2.0 255.255.255.0 0 | -RouterA(config)# router ospf 1 -RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0 |
| What are two features of a link-state routing protocol? (Choose two.) -Routers send periodic updates only to neighboring routers. -Routers send triggered updates in response to a change. -Routers create a topology of the network by using information from other routers. -The database information for each router is obtained from the same source. -Paths are chosen based on the lowest number of hops to the designated router. | -Routers send triggered updates in response to a change. -Routers create a topology of the network by using information from other routers. |
| Why would an administrator use a network security auditing tool to flood the switch MAC address table with fictitious MAC addresses? -to determine which ports are not correctly configured to prevent MAC address flooding -to determine when the CAM table size needs to be increased in order to prevent overflows -to determine if the switch is forwarding the broadcast traffic correctly -to determine which ports are functioning | to determine which ports are not correctly configured to prevent MAC address flooding |
| Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs? -switchport mode access switchport port-security -switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation restrict -switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky -switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation protect | -switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation restrict |
| Which problem is evident if the show ip interface command shows that the interface is down and the line protocol is down? -An encapsulation mismatch has occurred. -A cable has not been attached to the port. -The no shutdown command has not been issued on the interface. -There is an IP address conflict with the configured address on the interface. | A cable has not been attached to the port. |
| What caused the following error message to appear?01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state 01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8. 01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down 01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down -Another switch was connected to this switch port with the wrong cable. -An unauthorized user tried to telnet to the switch through switch port Fa0/8. -NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8. -A host with an invalid IP address was -connected to a switch port that was previously unused. -Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8. | Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8. |
| While analyzing log files, a network administrator notices reoccurring native VLAN mismatches. What is the effect of these reoccurring errors? -All traffic on the error-occurring trunk port is being misdirected or dropped. -The control and management traffic on the error-occurring trunk port is being misdirected or dropped. -All traffic on the error-occurring trunk port is being switched correctly regardless of the error. -Unexpected traffic on the error-occurring trunk port is being received. | The control and management traffic on the error-occurring trunk port is being misdirected or dropped. |
| Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? (Choose three.) -dynamic desirable – dynamic desirable -dynamic auto – dynamic auto -dynamic desirable – dynamic auto -dynamic desirable – trunk -access – trunk -access – dynamic auto | -dynamic desirable – dynamic desirable -dynamic desirable – dynamic auto -dynamic desirable – trunk |
| What are two ways of turning off DTP on a trunk link between switches? (Choose two.) -Change the native VLAN on both ports. -Configure attached switch ports with the dynamic desirable command option. -Configure attached switch ports with the nonegotiate command option. -Configure one port with the dynamic auto command option and the opposite attached switch port with the dynamic desirable command option. -Place the two attached switch ports in access mode. | -Configure attached switch ports with the nonegotiate command option. -Place the two attached switch ports in access mode. |
| A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port Gi1/1 is used to connect to the router. Which command should be entered to prepare this port for the task? -Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# spanning-tree vlan 1 -Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# spanning-tree portfast -Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport mode trunk -Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport access vlan 1 | Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport mode trunk |
| Which two characteristics describe the native VLAN? (Choose two.) -Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN. -The native VLAN traffic will be untagged across the trunk link. -This VLAN is necessary for remote management of a switch. -High priority traffic, such as voice traffic, uses the native VLAN. -The native VLAN provides a common identifier to both ends of a trunk. | -The native VLAN traffic will be untagged across the trunk link -The native VLAN provides a common identifier to both ends of a trunk |
| On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch? -Switch# delete flash:vlan.dat -Switch(config-if)# no switchport access vlan 100 -Switch(config-if)# no switchport trunk allowed vlan 100 -Switch(config)# no vlan 100 | Switch(config)# no vlan 100 |
| What is the purpose of setting the native VLAN separate from data VLANs? -The native VLAN is for carrying VLAN management traffic only. -The security of management frames that are carried in the native VLAN can be enhanced. -A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs. -The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANs. | A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs. |
| A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame? -All devices in all VLANs see the frame. -Devices in VLAN 20 and the management VLAN see the frame. -Only devices in VLAN 20 see the frame. -Only devices that are connected to the local switch see the frame. | Only devices in VLAN 20 see the frame |
| -A configuration for the native VLAN is missing. -There is no IP address configured for the FastEthernet 0/0 interface. -The wrong VLAN has been configured on subinterface Fa0/0.50. -The VLAN IP addresses should belong to the same subnet. | The wrong VLAN has been configured on subinterface Fa0/0.50. |
| What is the purpose of an access list that is created as part of configuring IP address translation? -The access list defines the valid public addresses for the NAT or PAT pool. -The access list defines the private IP addresses that are to be translated. -The access list prevents external devices from being a part of the address translation. -The access list permits or denies specific addresses from entering the device doing the translation. | The access list defines the private IP addresses that are to be translated. |
| -R2(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1 -R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254 -R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1 -R2(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254 | R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1 |
| Which information does a switch use to populate the MAC address table? -the destination MAC address and the incoming port -the destination MAC address and the outgoing port -the source and destination MAC addresses and the incoming port -the source and destination MAC addresses and the outgoing port -the source MAC address and the incoming port -the source MAC address and the outgoing port | the source MAC address and the incoming port |
| Beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses? -UC -IPBase -SEC -DATA | IPBase |
| -ipv6 unicast-routing -ipv6 nd other-config-flag -ipv6 dhcp server LAN1 -prefix-delegation 2001:DB8:8::/48 00030001000E84244E70 -dns-server 2001:DB8:8::8 | ipv6 nd other-config-flag |
| -10 broadcast domains and 5 collision domains -5 broadcast domains and 10 collision domains -5 broadcast domains and 11 collision domains -16 broadcast domains and 11 collision domains | 5 broadcast domains and 10 collision domains |
| What is a function of the distribution layer? -fault isolation -network access to the user -high-speed backbone connectivity -interconnection of large-scale networks in wiring closets | interconnection of large-scale networks in wiring closets |
| Which switching method drops frames that fail the FCS check? -borderless switching -cut-through switching -ingress port buffering -store-and-forward switching | store-and-forward switching |
| Fill in the blank. In IPv6, all routes are level ____ ultimate routes. | 1 |
| Fill in the blank. Static routes are configured by the use of the ____ global configuration command. | ip route |
| Fill in the blank. The OSPF Type 1 packet is the ____ packet. | Hello |
| Fill in the blank. The default administrative distance for a static route is ____. | 1 |
| When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default? -data VLAN ID -native VLAN ID -unused VLAN ID -management VLAN ID | native VLAN ID |
| -(config)# interface gigabitethernet 1/1 -(config-if)# no switchport -(config)# interface vlan 1 -(config-if)# ip address 192.168.1.2 255.255.255.0 -(config-if)# no shutdown -(config)# interface gigabitethernet1/1 -(config-if)# switchport mode trunk -(config)# interface fastethernet0/4 -(config-if)# switchport mode trunk -(config)# ip routing | -(config)# interface gigabitethernet 1/1 -(config-if)# no switchport -(config)# ip routing |
| 153. Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet? -Add an administrative distance of 254. -Change the destination network and mask to 0.0.0.0 0.0.0.0 -Change the exit interface to S0/0/1. -Add the next-hop neighbor address of 209.165.200.226. | Change the destination network and mask to 0.0.0.0 0.0.0.0 |
| How is the router ID for an OSPFv3 router determined? -the highest IPv6 address on an active interface -the highest EUI-64 ID on an active interface -the highest IPv4 address on an active interface -the lowest MAC address on an active interface | the highest IPv4 address on an active interface |
| Which two statements are characteristics of routed ports on a multilayer switch? (Choose two.) -In a switched network, they are mostly configured between switches at the core and distribution layers. -They support subinterfaces, like interfaces on the Cisco IOS routers. -The interface vlan command has to be entered to create a VLAN on routed ports. -They are used for point-to-multipoint links. -They are not associated with a particular VLAN. | -In a switched network, they are mostly configured between switches at the core and distribution layers. -They are not associated with a particular VLAN. |
| A small-sized company has 20 workstations and 2 servers. The company has been assigned a group of IPv4 addresses 209.165.200.224/29 from its ISP. What technology should the company implement in order to allow the workstations to access the services over the Internet? -static NAT -dynamic NAT -port address translation -DHCP | dynamic NAT |
| What best describes the operation of distance vector routing protocols? -They use hop count as their only metric. -They send their routing tables to directly connected neighbors. -They flood the entire network with routing updates. -They only send out updates when a new network is added. | They send their routing tables to directly connected neighbors. |
| Which three advantages are provided by static routing? (Choose three.) -The path a static route uses to send data is known. -No intervention is required to maintain changing route information. -Static routing does not advertise over the network, thus providing better security. -Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does. -Configuration of static routes is error-free. Static routes scale well as the network grows. | -The path a static route uses to send data is known. -Static routing does not advertise over the network, thus providing better security. -Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does. |
| When configuring a switch to use SSH for virtual terminal connections, what is the purpose of the crypto key generate rsa command? -show active SSH ports on the switch -disconnect SSH connected hosts -create a public and private key pair -show SSH connected hosts -access the SSH database configuration | create a public and private key pair |
| Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What is the problem preventing PC0 and PC1 from communicating with PC2 and PC3? -The routers are using different OSPF process IDs. -The serial interfaces of the routers are in different subnets. -No router ID has been configured on the routers. -The gigabit interfaces are passive. | The serial interfaces of the routers are in different subnets. |
| Which two commands can be used to verify the content and placement of access control lists? (Choose two.) -show processes -show cdp neighbor -show access-lists -show ip route -show running-config | -show access-lists -show running-config |
| What summary static address would be configured on R1 to advertise to R3? -192.168.0.0/24 -192.168.0.0/23 -192.168.0.0/22 -192.168.0.0/21 | 192.168.0.0/22 |
| A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements? -auto secure MAC addresses -dynamic secure MAC addresses -static secure MAC addresses -sticky secure MAC addresses | sticky secure MAC addresses |
| Which value represents the “trustworthiness” of a route and is used to determine which route to install into the routing table when there are multiple routes toward the same destination? -routing protocol -outgoing interface -metric -administrative distance | administrative distance |
| Which type of router memory temporarily stores the running configuration file and ARP table? -flash -NVRAM -RAM -ROM | RAM |
| A new network policy requires an ACL to deny HTTP access from all guests to a web server at the main office. All guests use addressing from the IPv6 subnet 2001:DB8:19:C::/64. The web server is configured with the address 2001:DB8:19:A::105/64. Implementing the NoWeb ACL on the interface for the guest LAN requires which three commands? (Choose three.) -permit tcp any host 2001:DB8:19:A::105 eq 80 -deny tcp host 2001:DB8:19:A::105 any eq 80 -deny tcp any host 2001:DB8:19:A::105 eq 80 -permit ipv6 any any -deny ipv6 any any -ipv6 traffic-filter NoWeb in -ip access-group NoWeb in | -deny tcp any host 2001:DB8:19:A::105 eq 80 -permit ipv6 any any -ipv6 traffic-filter NoWeb in |
| An OSPF router has three directly connected networks; 172.16.0.0/16, 172.16.1.0/16, and 172.16.2.0/16. Which OSPF network command would advertise only the 172.16.1.0 network to neighbors? -router(config-router)# network 172.16.1.0 0.0.255.255 area 0 -router(config-router)# network 172.16.0.0 0.0.15.255 area 0 -router(config-router)# network 172.16.1.0 255.255.255.0 area 0 -router(config-router)# network 172.16.1.0 0.0.0.0 area 0 | router(config-router)# network 172.16.1.0 0.0.255.255 area 0 |
| Which subnet mask would be used as the classful mask for the IP address 192.135.250.27? -255.0.0.0 -255.255.0.0 -255.255.255.0 -255.255.255.224 | 255.255.255.0 |
| -5 -8 -20 -25 -30 | 5 |
| The buffers for packet processing and the running configuration file are temporarily stored in which type of router memory? -Flash -NVRAM -RAM -ROM | RAM |
| A network technician is configuring port security on switches. The interfaces on the switches are configured in such a way that when a violation occurs, packets with unknown source address are dropped and no notification is sent. Which violation mode is configured on the interfaces? -off -restrict -protect -shutdown | protect |
| A standard ACL has been configured on a router to allow only clients from the 10.11.110.0/24 network to telnet or to ssh to the VTY lines of the router. Which command will correctly apply this ACL? -access-group 11 in -access-class 11 in -access-list 11 in -access-list 110 in | access-group 11 in |
| A security specialist designs an ACL to deny access to a web server from all sales staff. The sales staff are assigned addressing from the IPv6 subnet 2001:db8:48:2c::/64. The web server is assigned the address 2001:db8:48:1c::50/64. Configuring the WebFilter ACL on the LAN interface for the sales staff will require which three commands? (Choose three.) -permit tcp any host 2001:db8:48:1c::50 eq 80 -deny tcp host 2001:db8:48:1c::50 any eq 80 -deny tcp any host 2001:db8:48:1c::50 eq 80 -permit ipv6 any any -deny ipv6 any any -ip access-group WebFilter in -ipv6 traffic-filter WebFilter in | -deny tcp host 2001:db8:48:1c::50 any eq 80 -deny tcp any host 2001:db8:48:1c::50 eq 80 -deny ipv6 any any |
| To enable RIP routing for a specific subnet, the configuration command network 192.168.5.64 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network? -192.168.5.64 -192.168.5.0 -192.168.0.0 -No address is displayed. | 192.168.5.0 |
| -1 -2 -3 -4 -5 -6 | 2 |
| A router learns of multiple toward the same destination. Which value in a routing table represents the trustworthiness of learned routes and is used by the router to determine which route to install into the routing table for specific situation? -Metric -Colour -Meter -Bread | Metric |
| What is the minimum configuration for a router interface that is participating in IPv6 routing? -Ipv6 -OSPF -Link-access -To have only a link-local IPv6 address -Protocol | To have only a link-local IPv6 address |
| Which two statements are true about half-duplex and full-duplex communications? (Choose two.) -Full duplex offers 100 percent potential use of the bandwidth. -Half duplex has only one channel. -All modern NICs support both half-duplex and full-duplex communication. -Full duplex allows both ends to transmit and receive simultaneously. -Full duplex increases the effective bandwidth. | -Full duplex offers 100 percent potential use of the bandwidth. -Full duplex allows both ends to transmit and receive simultaneously. |
| Fill in the blank. The acronym describes the type of traffic that has strict QoS requirements and utilizes a one-way overall delay less than 150 ms across the network. ________ | VoIP |
| Which two commands should be implemented to return a Cisco 3560 trunk port to its default configuration? (Choose two.) -S1(config-if)# no switchport trunk allowed vlan -S1(config-if)# no switchport trunk native vlan -S1(config-if)# switchport mode dynamic desirable -S1(config-if)# switchport mode access -S1(config-if)# switchport access vlan 1 | -S1(config-if)# no switchport trunk allowed vlan -S1(config-if)# no switchport trunk native vlan |
| Which command will enable auto-MDIX on a device? -S1(config-if)# mdix auto -S1# auto-mdix S1(config-if)# auto-mdix -S1# mdix auto S1(config)# mdix auto -S1(config)# auto-mdix | S1(config-if)# mdix auto |
| What is the effect of issuing the passive-interface default command on a router that is configured for OSPF? -Routers that share a link and use the same routing protocol -It prevents OSPF messages from being sent out any OSPF-enabled interface. -Routers that share a link and use the same routing protocol -All of the above | It prevents OSPF messages from being sent out any OSPF-enabled interface. |
| A network administrator is implementing a distance vector routing protocol between neighbors on the network. In the context of distance vector protocols, what is a neighbor? -routers that are reachable over a TCP session -routers that share a link and use the same routing protocol -routers that reside in the same area -routers that exchange LSAs | routers that share a link and use the same routing protocol |
| -Address translation is working. -Three addresses from the NAT pool are being used by hosts. -The name of the NAT pool is refCount. -A standard access list numbered 1 was used as part of the configuration process. -Two types of NAT are enabled. -One port on the router is not participating in the address translation. | -Address translation is working. -A standard access list numbered 1 was used as part of the configuration process. -Two types of NAT are enabled. |
| Which two methods can be used to provide secure management access to a Cisco switch? (Choose two.) -Configure all switch ports to a new VLAN that is not VLAN 1. -Configure specific ports for management traffic on a specific VLAN. -Configure SSH for remote management. -Configure all unused ports to a “black hole.” -Configure the native VLAN to match the default VLAN. | -Configure specific ports for management traffic on a specific VLAN. -Configure SSH for remote management. |
| -0.0.0.0 -10.16.100.128 -10.16.100.2 -110 -791 | 10.16.100.128 |
| -Source MAC: 00E0.FE10.17A3 Source IP: 10.1.1.10 -Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.1 -Source MAC: 00E0.FE91.7799 Source IP: 192.168.1.1 -Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.10 | Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.10 |
| Which network design may be recommended for a small campus site that consists of a single building with a few users? -a network design where the access and distribution layers are collapsed into a single layer -a network design where the access and core layers are collapsed into a single layer -a collapsed core network design -a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions | a collapsed core network design |
| A router learns of multiple routes toward the same destination. Which value in a routing table represents the trustworthiness of learned routes and is used by the router to determine which route to install into the routing table for this specific situation? -routing protocol -outgoing interface -metric -administrative distance | administrative distance |
| The network address 172.18.9.128 with netmask 255.255.255.128 is matched by which wildcard mask? -0.0.0.31 -0.0.0.255 -0.0.0.127 -0.0.0.63 | 0.0.0.127 |
| Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.) -FF02::5 -FF02::6 -FF02::A -2001:db8:cafe::1 -FF02::1:2 -FE80::1 | -FF02::5 -FF02::6 -FE80::1 |
| A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE? -172.16.20.2 -172.16.26.254 -172.16.47.254 -172.16.48.5 | 172.16.47.254 |
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