Router and Routing Basics Exam Ch 9, 10, 11

Which three statements are generally considered to be best practices in the placement of ACLs? (Choose three.)

What two functions describe uses of an access control list? (Choose two.)

An administrator has configured an access list on R1 to allow SSH administrative access from host 172.16.1.100. Which command correctly applies the ACL?

Refer to the exhibit. What is the result of adding the established argument to the end of the ACE?

Refer to the exhibit. What will happen to the access list 10 ACEs if the router is rebooted before any other commands are implemented?

Which three statements describe ACL processing of packets? (Choose three.)

In which configuration would an outbound ACL placement be preferred over an inbound ACL placement?

Refer to the exhibit. A router has an existing ACL that permits all traffic from the 172.16.0.0 network. The administrator attempts to add a new ACE to the ACL that denies packets from host 172.16.0.1 and receives the error message that is shown in the exhibit. What action can the administrator take to block packets from host 172.16.0.1 while still permitting all other traffic from the 172.16.0.0 network?

What packets would match the access control list statement that is shown below? access-list 110 permit tcp 172.16.0.0 0.0.0.255 any eq 22

If a router has two interfaces and is routing both IPv4 and IPv6 traffic, how many ACLs could be created and applied to it?

Which feature is unique to IPv6 ACLs when compared to those of IPv4 ACLs?

Consider the following access list that allows IP phone configuration file transfers from a particular host to a TFTP server: R1(config)# access-list 105 permit udp host 10.0.70.23 host 10.0.54.5 range 1024 5000 R1(config)# access-list 105 deny ip any any R1(config)# interface gi0/0 R1(config-if)# ip access-group 105 out Which method would allow the network administrator to modify the ACL and include FTP transfers from any source IP address?

Which IPv6 ACL command entry will permit traffic from any host to an SMTP server on network 2001:DB8:10:10::/64?

What is the only type of ACL available for IPv6?

What method is used to apply an IPv6 ACL to a router interface?

A network administrator needs to configure a standard ACL so that only the workstation of the administrator with the IP address 192.168.15.23 can access the virtual terminal of the main router. Which two configuration commands can achieve the task? (Choose two.)

Which statement describes a difference between the operation of inbound and outbound ACLs?

What single access list statement matches all of the following networks? 192.168.16.0 192.168.17.0 192.168.18.0 192.168.19.0

Which three implicit access control entries are automatically added to the end of an IPv6 ACL? (Choose three.)

What is a limitation when utilizing both IPv4 and IPv6 ACLs on a router?

Refer to the exhibit. The network administrator that has the IP address of 10.0.70.23/25 needs to have access to the corporate FTP server (10.0.54.5/28). The FTP server is also a web server that is accessible to all internal employees on networks within the 10.x.x.x address. No other traffic should be allowed to this server. Which extended ACL would be used to filter this traffic, and how would this ACL be applied? (Choose two.)

Refer to the exhibit. The IPv6 access list LIMITED_ACCESS is applied on the S0/0/0 interface of R1 in the inbound direction. Which IPv6 packets from the ISP will be dropped by the ACL on R1?

Which two characteristics are shared by both standard and extended ACLs? (Choose two.)

Refer to the exhibit. Based on the output that is shown, what kind of IPv6 addressing is being configured?

As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?

A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?

Refer to the exhibit. A network administrator is implementing the stateless DHCPv6 operation for the company. Clients are configuring IPv6 addresses as expected. However, the clients are not getting the DNS server address and the domain name information configured in the DHCP pool. What could be the cause of the problem?

What is an advantage of configuring a Cisco router as a relay agent?

Refer to the exhibit. What should be done to allow PC-A to receive an IPv6 address from the DHCPv6 server?

Refer to the exhibit. A network administrator is implementing stateful DHCPv6 operation for the company. However, the clients are not using the prefix and prefix-length information that is configured in the DHCP pool. The administrator issues a show ipv6 interface command. What could be the cause of the problem?

Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)

What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?

A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 service, which message does it send to a server for configuration information?

A network administrator is implementing DHCPv6 for the company. The administrator configures a router to send RA messages with M flag as 1 by using the interface command ipv6 nd managed-config-flag. What effect will this configuration have on the operation of the clients?

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?

What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?

An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured?

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?

A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?

A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?

Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?

An administrator issues the commands: Router(config)# interface g0/1 Router(config-if)# ip address dhcp What is the administrator trying to achieve?

How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?

What are two of the required steps to configure PAT? (Choose two.)

Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?

Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?

Typically, which network device would be used to perform NAT for a corporate environment?

Refer to the exhibit. The NAT configuration applied to the router is as follows: ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255 ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224 ERtr(config)# ip nat inside source list 1 pool corp overload ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4 ERtr(config)# interface gigabitethernet 0/0 ERtr(config-if)# ip nat inside ERtr(config-if)# interface serial 0/0/0 ERtr(config-if)# ip nat outside Based on the configuration and the output shown, what can be determined about the NAT status within the organization?

Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?

What is a disadvantage of NAT?

A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?

Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?

A network administrator is configuring a static NAT on the border router for a web server located in the DMZ network. The web server is configured to listen on TCP port 8080. The web server is paired with the internal IP address of 192.168.5.25 and the external IP address of 209.165.200.230. For easy access by hosts on the Internet, external users do not need to specify the port when visiting the web server. Which command will configure the static NAT?

Which statement accurately describes dynamic NAT?

When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

What is an advantage of deploying IPv4 NAT technology for internal hosts in an organization?

What is a characteristic of unique local addresses?

What is the purpose of port forwarding?

Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?

Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?

Which type of NAT maps a single inside local address to a single inside global address?

A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?

What is the primary purpose of NAT?

Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?

Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the dynamic NAT configuration?