CCNA Module 7 Answers

1.

Refer to the exhibit. Traffic exiting R1 is failing translation. What part of the configuration is most likely incorrect?

ip nat pool statement

access-list statement

ip nat inside is on the wrong interface

interface s0/0/2 should be a private IP address

2.

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?

defines which addresses can be translated

defines which addresses are allowed into the router

defines which addresses are assigned to a NAT pool

defines which addresses are allowed out of the router

1. Which two statements concerning network security are accurate? (Choose two.)

802.11i uses 3DES for encryption.

Open authentication uses no client or AP verification.

The 802.11i protocol is functionally identical to WPA.

802.11i incorporates a RADIUS server for enterprise authentication.

A wireless client first associates with an AP and then authenticates for network access.

2. Which installation method will allow connectivity for a new wireless network?

set up WEP on the access point only

set up open access on both the access point and each device connected to it

set up full encryption on the access point while leaving each device connected to the network open

set up full encryption on each device of the WLAN while leaving the access point settings open

1. A network administrator has been told that the company IP address infrastructure must adhere to RFC 1918. What three IP address ranges from RFC 1918 could the administrator use on the network? (Choose three.)

10.0.0.0/8

127.0.0.0/8

169.254.0.0/16

172.16.0.0/12

192.168.0.0/16

209.165.201.0/27

2.

Refer to the exhibit. Routers East and West are configured using RIPv1. Both routers are sending updates about their directly connected routes. The East router can ping the West router serial interface and West can ping the serial interface of East. However, neither router has dynamically learned routes from the other. What is most likely the problem?

A gateway of last resort is required.

Subnetting is not supported by RIPv1.

VLSM is not supported by RIPv1.

One of the routers needs a clock rate on the serial interface.

1. Which options are properties of contention-based media access for a shared media? (Choose three.)

non-deterministic

less overhead

one station transmits at a time

collisions exist

devices must wait their turn

token passing

2. What is a primary purpose of encapsulating packets into frames?

provide routes across the internetwork

format the data for presentation to the user

facilitate the entry and exit of data on media

identify the services to which transported data is associated