Tuesday, February 5, 2008

CCNA 1 - Module 8 Exam Answers

What is characteristic of the operation of a Layer 2 switch?
*uses the destination MAC address to determine the specific interface to forward a frame

Two newly hired technicians are discussing the implementation of a new LAN. One technician proposes installing a hub. The other technician advises installing a switch. Which statements are true about the differences between a hub and a switch? (Choose two.)
*A switch provides more throughput to hosts on a LAN
*A switch provides a collision-free environment on a LAN.

Refer to the exhibit. Forty-eight workstations are connected to a hub. The users are able to connect to the network, but access is very slow. An entry-level technician replaces the 10 Mbps hub with 100 Mbps hub but the problem still exists. What is the most economical way to correct the problem?
*Replace the hub with a switch.

Exhibited is a portion of ABC Company internetwork. Which of the connections can be full duplex?
*segments 2, 3, and 4

Refer to the exhibit. The switch and the hub have default configurations, and the switch has built its CAM table. Which of the hosts will receive the data when workstation A sends a unicast packet to workstation C?
*workstation C

An administrator would like to connect ten workstations on a network. The device selected by the administrator must allow connectivity between hosts without sharing bandwidth. Which device would be appropriate?

Which networking devices use the MAC address to make forwarding decisions? (Choose two.)

Which devices are primarily used to extend cable segments within a collision domain by regenerating the data signals? (Choose two.)

Which devices will create multiple collision domains in an Ethernet network? (Choose two.)


Refer to the exhibit. How many broadcast domains exist in classroom 240?

A PC receives a frame. Which situation will cause the NIC on the receiving host to pass the frame contents up the OSI layers to be processed by the PC?
*The destination MAC address of the frame is FFFF.FFFF.FFFF.

A network administrator has a multi-floor LAN to monitor and maintain. Through careful monitoring, the administrator has noticed a large amount of broadcast traffic slowing the network. Which device would you use to best solve this problem?

What will a bridge do if it receives a frame with a MAC address that is not within the table?
*send frame to all ports except source port

Which networking device reduces the size of both collision domains and broadcast domains?

What is used to prevent Layer 2 switching loops?
*Spanning-Tree Protocol

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