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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(9~18)

9 Which of the following are data link layer encapsulation details? (Choose two.)

( )A header and trailer are added.

( )Data is converted into packets.

( )Packets are packaged into frames.

( )Frames are divided into segments.

( )Packets are changed into bits for Internet travel.

10 Which three features apply to LAN connections? (Choose three.)

( )operate using serial interfaces

( )make network connection using a hub

( )limited to operation over small geographic areas

( )provide part-time connectivity to remote services

( )typically operate under local administrative control

( )provide lower bandwidth services compared to WANs

11 Which of the following are ways that bandwidth is commonly measured? (Choose three.)

( )GHzps

( )kbps

( )Mbps

( )Nbps

( )MHzps

( )Gbps

12 Which of the following are layers of the TCP/IP model? (Choose three.)

( )Application

( )Physical

( )Internet

( )Network Access

( )Presentation

13 Which best describes the function of the physical layer?

( )Defines the electrical and functional specifications for the link between end systems.

( )Provides reliable transit of data across a physical link.

( )Provides connectivity and path selection between two end systems.

( )Concerned with physical addressing, network topology and media access.

14 Which term describes the process of adding headers to data as it moves down OSI layers?

( )division

( )encoding

( )separation

( )segmentation

( )encapsulation

15 The central hub has malfunctioned in the network. As a result, the entire network is down. Which type of physical network topology is implemented?

( )bus

( )star

( )ring

( )mesh

16 Refer to the exhibit. Which column shows the correct sequence of OSI model layers?

( )A

( )B

( )C

( )D

Update:

17 Which two features apply to WAN connections? (Choose two.)

Update 2:

( )operate using serial interfaces

( )make network connection using a hub

( )limited to operation over small geographic areas

( )typically operate under local administrative control

( )provide lower bandwidth services compared to LANs

Update 3:

18 Refer to the exhibit. Identify the devices labeled A, B, C, and D in the network physical documentation.

Update 4:

( )A=bridge, B=switch, C=router, D=hub

( )A=bridge, B=hub, C=router, D=switch

( )A=bridge, B=router, C=hub, D=switch

( )A=hub, B=bridge, C=router, D=switch

1 Answer

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  • 家榮
    Lv 5
    1 decade ago
    Favorite Answer

    9,A header and trailer are added、Packets are packaged into frames.

    10,limited to operation over small geographic areas、provide part-time connectivity to remote services、typically operate under local administrative control

    11,kbps、Mbps、Gbps

    12,Application、Physical、Internet

    13,Defines the electrical and functional specifications for the link between end systems.

    14,Data資料下到第四層封裝成為Segament

    15,Star

    16,沒圖

    17,operate using serial interfaces 、provide lower bandwidth services compared to LANs

    18,沒圖

    Source(s): 自已
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