Final Exam -CCNA1 (Version4.0)

Question

( ) 1. Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?

172.16.128.0 255.255.255.224

172.16.128.0 255.255.0.0

172.16.128.0 255.255.192.0

172.16.128.0 255.255.224.0

172.16.128.0 255.255.255.192

( ) 2. What is true regarding network layer addressing? (Choose three.)

uses a flat structure

prevent broadcasts

heirarchical

uniquely identifies each host

48 bits in length

contains a network portion

( )3. Which logical topology best describes the exhibited network?

star

ring

point-to-point

multiaccess

mesh

( )4. Which of the following OSI layers offers reliable, connection-oriented data communication services?

application

presentation

session

transport

network

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Answer 1

最佳解答

A1, 172.16.128.0 255.255.192.0

A2, heirarchical, uniquely identifies each host, contains a network portion

A3, 沒有圖沒法回答 不過其他的考古題的圖是multiaccess

A4, network

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