Anonymous
Anonymous asked in 教育與參考考試 · 1 decade ago

關於認證CCNA希望高手解答都是英文第二章18提(1~8)

1 What is the term used to describe the transport layer protocol data unit?

( )bits

( )packets

( )segments

( )frames

( )data streams

2 Which of the following are factors that determine throughput? (Choose two.)

( )types of passwords used on servers

( )type of Layer 3 protocol used

( )network topology

( )width of the network cable

( )number of users on the network

3 What is one advantage of defining network communication by the seven layers of the OSI model?

( )It increases the bandwidth of a network.

( )It makes networking easier to learn and understand.

( )It eliminates many protocol restrictions.

( )It increases the throughput of a network.

( )It reduces the need for testing network connectivity.

4 Refer to the following list. Choose the correct order of data encapsulation when a device sends information.

1.segments

2.bits

3.packets

4.data

5.frames

( )1 - 3 - 5 - 4 - 2

( )2 - 1 - 3 - 5 - 4

( )2 - 4 - 3 - 5 - 1

( )4 - 3 - 1 - 2 - 5

( )4 - 1 - 3 - 5 - 2

( )3 - 5 - 1 - 2 - 4

5 What makes it easier for different networking vendors to design software and hardware that will interoperate?

( )OSI model

( )proprietary designs

( )IP addressing scheme

( )standard logical topologies

( )standard physical topologies

6 Which layer of the OSI model provides network services to processes in electronic mail and file transfer programs?

( )data link

( )transport

( )network

( )application

7 Which layer of the OSI model provides connectivity and path selection between two end systems where routing occurs?

( )physical layer

( )data link layer

( )network layer

( )transport layer

8 A switch has failed in the network. As a result, only one segment of the network is down. Which type of physical network topology is implemented?

( )bus

( )ring

( )star

( )extended star

1 Answer

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  • 家榮
    Lv 5
    1 decade ago
    Favorite Answer

    1,第四層的是Segment

    2,type of Layer 3 protocol used和network topology

    3,我覺得是It makes networking easier to learn and understand.

    4,4-1-3-5-2 Data => Segment => Packet => Frame => Bits

    5,使用OSI 7層模型的好處, makes it easier for different networking vendors to design software and hardware 。不同的廠商的設備,可以進行通訊。

    6,Mail 和 File transfer用到哪層協定?就是Application。

    7,Routing 只在第三層發生。

    8,Star

    Source(s): 自已
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