Which two networking devices operate at Layer 1 of the OSI Layer (Choose two)
Repeater
Bridge
Switch
Router
Hub
Which two networking devices forward data based on destination MAC address?
Which two network topologies are the most popular in switching? (Choose two)
Bus
Token Passing Bus
Star
Extended Star
Ring
Which device would you select to partition a network into VLANs
At which layer of the OSI model does TCP operate?
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Which two layers of the OSI model relate to the transmission of bits over the wire and packet forwarding based on destination IP address? (Choose two)
Which layer of the OSI model is associated with the reliable transmission of datagrams?
Datagram
Routing
Network
Data Link
Transport
Transmission
Session
Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI Model?
PDUs
Bits
Sequences
Segments
Packets
Frames
Which two layers of the OSI model are combined in the Internet protocol suite Application Layer? (Choose two)
Layer 6
In an IEEE 802.3 frame, what is the significance of the DSAP field?
The DSAP field specifies the TCP or UDP port that is associated with the transport protocol.
The DSAP field is only used in the United States Department of Defense.
The DSAP field is only used in Ethernet II frames.
The DSAP field indicates the network layer protocol.
Which field in an Ethernet II frame performs the same function as the DSAP field in an 802.3 Ethernet frame?
Start of the frame
Ether-type
Frame Check Sequence (FCS)
Subnetwork Access Protocol
Logical Link Control
What are two features of a bridge? (Choose two)
Reliable transmission
Operate at Layer 2
Operate at Layer 3
Create multiple broadcast domains
Create multiple collision domains
Flood input packets to all ports
Drop IP packets with invalid destination ports
Which two layers of the OSI model are combined in the Internet protocol suite network access layer?
Layers 3
Layer 7
What are three reasons that switches supersede bridges? (Choose three)
Smaller frame buffers decrease latency
Forward, filter, or flood frames
Multiple simultaneous communications between ports
Larger inspection engine allows for higher throughput
Switches have many ports
Which action does a switch take if the destination MAC address is unknown?
Discard frame
Send ICMP unreachable message to source
Flood packet on all ports
Compare destination IP address against an ACL to determine if it is permitted
Send gratuitous ARP on all ports and wait for reply before forwarding.
Which statement describes the purpose of the MAC address forwarding table of a switch?
The switch consults the forwarding table to determine the best route to a destination.
The switch consults the forwarding table to determine the output port.
The switch consults the forwarding table to determine if the packet is routable.
The switch consults the forwarding table to determine if access control permits the packet.
What are two attributes of a VLAN?
A VLAN defines a collision domain.
A VLAN defines a broadcast domain.
Broadcast are flooded to all VLANs.
Collision are flooded to all VLANs.
A Layer 3 device is required to route packets between VLANs.
A Layer 2 device is required to route packets between VLANs.
Which four statements indicate unique properties of VLAN 1 on Cisco Nexus switches? (Choose four)
VLAN 1 is used to flood multicast traffic
VLAN 1 cannot be deleted.
VLAN 1 is used for Cisco Discovery Protocol.
VLAN 1 is used for VTP advertisements.
VLAN 1 defines a collision domain.
VLAN 1 defines a broadcast domain.
Which command displays the Trunking Native Mode VLAN on port Ethernet 1/18?
show running-config switchport e1/18
show running-config e1/18 switchport
show interface e1/18
show interface e1/18 switchport
show interface e1/18 native
Which VTP mode disallows the creation of local VLANs?
transparent
tunneling
server
client
off
native
Which three statements are true concerning RFC 1918 IP addresses (Choose three)
They are globally routable.
They are not globally routable.
They must not be filtered at the Internet border interfaces
They should be filtered at the internet border interfaces
They include 10.0.0.0/8, 172.16.0.0/16, 192.168.1.0/24
They include 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16
Which two statements describe the purpose of RFC 1918? (Choose two)
Establish a range of IP addresses that are dedicated to the growing use of multicast video.
Establish a range if IP addresses that are dedicated to the growing use of peer to peer file-sharing applications.
Establish a range of IP addresses that are dedicated to use on internal networks
Establish a range of IP addresses to address the shrinking pool of globally routable addresses.
What three reasons to migrate from IPv4 to IPv6? (Choose three)
IPv6 eliminates the requirement for NAT
IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
IPv6 eliminates the need for VLANs
Hosts can be assigned an IP address without DHCP
Hosts can be assigned an IP address without DNS.
Which two options describe services that are provided by TCP? (Choose two)
Session multiplexing
Ether Types identify destination services
Connection-oriented
best-effort packet delivery
binary translation.
Which two options describe services that are provided by UDP ? (Choose two)
Segmentation
Which two options represent a subnet mask that allows for a maximum of 14 available host addresses on a subnet? (Choose two)
255.255.255.240
255.255.255.192
255.255.240.0
255.255.192.0
/14
/21
/26
/28
What is the binary value of the hexadecimal number 0x511
10100011001
10101010101
10110010001
10100010001
10100110011
What is the binary value of the decimal number 1263
11011101101
10011101111
10011101011
1101000111
1011110111
Which option is an example of an advanced distance vector routing protocol?
EIGRP
RIP
OSPF
ARP
Which option is an example of a distance vector routing protocol?
IS-IS
Which option is an example of a link-state protocol
What is the maximum allowable hop count for RIPv1?
4
8
12
15
16
What is the default periodic interval at Ribv1 sends routing updates?
15 seconds
30 seconds
45 seconds
60 seconds
90 seconds
RIPv1 only sends routing updates when the topology changes
What does RIPv1 send to its neighbors?
Information about changed routes
information about new routes
The entire routing table.
Information about deleted routes.
What are two advantages of employing an external router for inter-vlan routing over an IEEE 802.1Q trunk link? (Choose two)
Layer 3 functionality is not required on the switch
The router facilities communication between VLANs.
The single traffic path is optimized.
Latency is reduced as packets leave the switch.
Equal-Cost Multipath is supported.
Which statement correctly describes an SVI?
An SVI is a Layer 2 interface and uses a dynamic MAC address.
An SVI cannot have an IP address assigned to it.
An SVI provides Layer 3 routing between VLANs.
Each switch port requires an SVI assignment.
What is the Cisco Nexus Operating system command to define a port as a layer 3
switchport
no switchport
l3 switchport
port switching off
Which statement is correct regarding a routed port on a multilayer switch?
A routed port requires a SVI definition.
Routed ports cannot be configured on a multilayer switch that uses SVIs.
A maximum of 32 routed ports can be provisioned on a given multilayer switch.
A routed port is a physical port that supports layer 3 routing
On a new Cisco Nexus switch, you receive an error message when you attempt to create an SVI. What is the first command you must use to create the SVI?
interface vlan (vlan_id)
vlan (vlan_id)
feature svi
interface routed
feature inter-vlan
Which command should you use to configure a Cisco Nexus switch certificationort for Layer 2 operation?
nexus(config-if)#switchport
network(config-if)# layer-2
nexus(config-if)# routed
nexus(config-if)#interface-vlan
What are two core features of Cisco Nexus Operating system (Choose two)
SNMPv3
RMON
System Manager
PSS
VRF
TRILL
What is the acronym expansion of the UDLD feature of Cisco Nexus Operating System?
UniDirectional Link Detection
Unified Data Link Distribution
Unified Data Loss Detection
Unified Directional Link Distribution
Unidirectional Data Loss Detection.
What are four security features that are included in Cisco Nexus Operating system
Cisco TrustSec
IEEE 802.1Qau
CoPP
port security
PIM
SSL VPN
IPSec VPN
ACLs
What are three modular layer 2 processes in Cisco Nexus Operating system?
UDLD
HSRP
STP
Cisco Discovery Protocol (CDP)
What are three modular layer 3 processes in Cisco Nexus Operating system?
Cisco Discovery Protocol
What are four security features that arae included in Cisco Nexus Operating System?
Port Security
IPsec VPN
What are two default user roles in Cisco Operating System?
admin
Network Operator
Operator
Storage Operator
Root
On most keyboards, the up arrow and down arrow keys move through the command history. Which two key sequences can be used as alternative
ALT+A
ALT+F
ALT+N
ALT+E
ALT+P
What is the function of the Tab key on the Cisco Nexus Operating System command line interface?
Redisplays the current command line.
deletes all characters from the cursor to the end of the command line.
Clears the terminal screen
completes a partially entered command if enough characters are present.
moves the cursor one word to the right
where does Cisco Nexus Operating system store the running configuration file.
RAM
Flash
bootflash
Volatile
NVRAM
Where does Cisco Nexus Operating system store the startup configuration file?
flash
volatile
Which two commands would you use to erase the Cisco Operating System configuration and return the switch to factory defaults?
write erase boot
erase configuration
erase running--configuration
erase startup-configuration
reboot
reload
shutdown
What is the minimum required command to enter global configuration mode on a Cisco Nexus switch?
con
configure
configure global
configure terminal
Which option would you use to exit the Cisco Nexus Operating System interface configuration mode and return to the exec prompt?
Ctrl-C
Ctrl-Z
Ctrl-E
exit
What is the correct format of an access control list on a Cisco Nexus switch to deny unencrypted. Web traffic from any source to destination host 10.10.1.110?
switch(config)# ip access-list 101 switch(config-acl)# deny tcp any host 10.10.1.110 eq 80
switch(config)# deny tcp any host 10.10.1.110 eq 80
switch(config)# access-list 101 deny tcp any host 10.10.1.110 eq 80 switch(config)# access-list 101 permit ip any any
switch(config)# ip access-list 101 switch(config-acl)# deny tcp any host 10.10.1.110 eq 80 switch(config)# access-list 101 permit ip any any
What is the correct format of an access control list on a Cisco Nexus switch to deny hosts on the 172.16.1.0/21 network from accessing HTTP proxy servers listening on port 8080?
switch(config)# ip access-list 101 switch(config-acl)# deny tcp 172.16.1.0 0.0.7.255 any eq 8080 switch(config-acl)# permit ip any any
switch(config)# ip access-list 101 switch(config-acl)# deny tcp any 172.16.1.0 255.255.248.0 eq 8080 switch(config-acl)# permit ip any any
switch(config)# access-list 101 deny tcp 172.16.1.0 0.0.15.255 eq 8080
switch(config)# ip access-list 101 switch(config-acl)# deny tcp any host 172.16.1.0/21 eq 8080
switch(config)# ip access-list 101 switch(config-acl)# deny tcp any host 10.10.1.110 eq 21 switch(config-acl)# permit ip any any
switch(config)# ip access-list 101 switch(config-acl)# deny tcp 172.16.1.255.255.248.0 any eq 8080 switch(config-acl)# permit ip any any
switch(conifg)# ip access-list 101 switch(config-acl)# deny tcp any host 172.16.1.0/21 eq 8080
What is the correct format of an access control list on a Cisco Nexus switch to only permit unencrypted web traffic from the 172.16.1.0./25 network to destination host 10.10.1.110?
switch(config)# ip access-list 101 switch(config-acl)# permit tcp host 172.16.1.0/25 any eq 80
switch(config)# ip access-list 101 switch(config-acl)# permit tcp 172.16.1.0 255.255.255.128 any eq 80
switch(config)# ip access-list 101 switch(config-acl)# permit tcp 172.16.1.0/25 any eq 80
switch(config)#access-list 101 permit tcp 172.16.1.0/25 0.0.0.128 eq 80
switch(conifg)# ip access-list 101 switch(config-acl)# permit tcp any 172.16.1.0 255.255.248.0 eq 80
which device forwards data based on the destination IP address?
bridge
switch
router
hub
Which network topology is most closely associated with classical CSMA/CD?
bus
token passing bus
star
Extended star
ring
Which network topology is most closely associated with FDDI
extended star
Which layer of the OSI model is associated with Token Ring Media Access Control
datagram
routing
network
data link
transport
transmission
session
When deploying 10BASE-2 Ethernet which type of connector is used
AUI
UTP
BNC
RJ-11
RJ-45
ST
DC
When deploying 10BASE-2 Ethernet, what is the maximum cable length?
100 meters
100 Feet
150 meters
150 feet
185 meters
185 feet
How many IP address ranges are specified in RFC 1918
1 in Class A, 2 in Class B, and 4 in Class C
2 in Class A, 4 in Class B, and 8 in Class C
4 in Class A, 8 in Class B, and 16 in Class C
1 in Class A, 16 in Class B, and 256 in Class C
What is required to allow devices that are using RFC 1918 addresses to communicate over the Internet?
A private to public VLAN ust be defined on the Internet border device
The Internet firewall must permit RFC 1918 addresses.
VLAN translation is required on the Internet border device.
Network address translation is required on the Internet border device.
What is the addressing format of IPv6?
48-bit dotted decimal
48-bit colon-delimited hexadecimal
64-bit colon-delimited hexadecimal.
128-bit dotted decimal
128-bit colon-delimited hexadecimal
Which statement describes the function of the OSI transport layer?
It segments data from the system of the sending host and reassembles the data into a data stream on the system of the receiving host.
It provides the connectivity and path selection between two host systems that may be located on geographically separated networks.
It defines how data is formatted for transmission and how access to the physical media is controlled.
It establishes, manages, and terminates session between two communicating hosts.
Which transport protocol requires a three-way handshake to establish a new connection?
UDP
IP
TCP
What is the subnet mask for the network 172.16.0.0/21?
255.255.0.0
255.255.248.0
255.255.255.248
255.255.248.240
255.255.255.0
What is the dotted hexadecimal representation of the IP address 172.13.99.225
AC.0D.63.E1
AB.63.99.D5
E2.1D.E1.66
BC.0C.C3.1F
CC.0D.F3.21
What is the decimal value of the hexadecimal number of 0x718?
718
1816
2907
3511
