ccan 1 chapter 2

7/31/2019 Ccan 1 Chapter 2

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1. Which statements correctly identify the role of intermediary devices in the network?

(Choose three.)

determine pathways for data

initiate data communications

retime and retransmit data signals

originate the flow of data

manage data flows

final termination point for data flow

2. Select the statements that are correct concerning network protocols. (Choose three.)

define the structure of layer specific PDUs

dictate how to accomplish layer functions

outline the functions necessary for communications between layers

limit the need for hardware compatibility

require layer dependent encapsulations

eliminate standardization among vendors

3. What are two functions of encapsulation? (Choose two.)

tracks delay between end devices

enables consistent network paths for communication

allows modification of the original data before transmission

identifies pieces of data as part of the same communication

ensures that data pieces can be directed to the correct receiving end device

4. What is a primary function of the trailer information added by the data link layer

encapsulation?

supports error detection

ensures ordered arrival of data

provides delivery to correct destination


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identifies the devices on the local network

assists intermediary devices with processing and path selection

5. Which two layers of the OSI model have the same functions as the TCP/IP model

Network Access Layer? (Choose two.)

Network

Transport

Physical

Data Link

Session

6. What is a PDU?

corruption of a frame during transmission

data reassembled at the destination

retransmitted packets due to lost communication

a layer specific encapsulation

7. Which characteristic correctly refers to end devices in a network?

manage data flows

originate data flow

retime and retransmit data signals

determine pathways for data

8.


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Refer to the exhibit. Cell A at IP address 10.0.0.34 has established an IP session with

IP Phone 1 at IP address 172.16.1.103. Based upon the graphic, which device type

best describes the function of wireless device Cell A?

the destination device

an end device

an intermediate device

a media device

9.

Refer to the exhibit. Which three labels correctly identify the network types for the

network segments that are shown? (Choose three.)

Network A WAN

Network B WAN

Network C LAN
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Network B MAN

Network C WAN

Network A LAN

10. Which three statements best describe a Local Area Network (LAN)? (Choose three.)

A LAN is usually in a single geographical area.

The network is administered by a single organization.

The connection between segments in the LAN is usually through a leased connection.

The security and access control of the network are controlled by a service provider.

A LAN provides network services and access to applications for users within a common

organization.

Each end of the network is generally connected to a Telecommunication Service Provider

(TSP).

11.

Refer to the exhibit. Which networking term describes the data interleaving process

represented in the graphic?

piping

PDU

streaming

multiplexing

encapsulation
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12. What is the primary purpose of Layer 4 port assignment?

to identify devices on the local media

to identify the hops between source and destination

to identify to the intermediary devices the best path through the network

to identify the source and destination end devices that are communicating

to identify the processes or services that are communicating within the end devices

13. What device is considered an intermediary device?

file server

IP phone

laptop

printer

switch

14.

Refer to the exhibit. Which term correctly identifies the device type that is included in

the area B?

source

end

transfer
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intermediary

15.

Refer to the exhibit. What type of network is shown?

WAN

MAN

LAN

WLAN

16. Which layer encapsulates the segment into packets?

physical

data link

network

transport

17. What can be identified by examining the network layer header?

the destination device on the local media

the destination host address

the bits that will be transferred over the media


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the source application or process creating the data

18.

Refer to the exhibit. Which set of devices contains only end devices?

A, C, D

B, E, G, H

C, D, G, H, I, J

D, E, F, H, I, J

E, F, H, I, J

19. During the encapsulation process, what occurs at the data link layer?

No address is added.

The logical address is added.

The physical address is added.

The process port number is added.

20. What is the purpose of the TCP/IP Network Access layer?

path determination and packet switching

data presentation


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reliability, flow control, and error detection

network media control

the division of segments into packets

21. What is the proper order of the layers of the OSI model from the highest layer to the

lowest layer?

physical, network, application, data link, presentation, session, transport

application, physical, session, transport, network, data link, presentation

application, presentation, physical, session, data link, transport, network

application, presentation, session, transport, network, data link, physical

presentation, data link, session, transport, network, physical, application

bn dch ting vit

1 . Nhng bo co xc nh ng vai tr ca cc thit b trung gian trong mng? (Chn

ba.)

xc nh con ng cho d liu

bt u truyn thng d liu

retime v truyn li tn hiu d liu

bt ngun t dng chy ca d liu

qun l cc lung d liu

im cui cng chm dt cho lu lng d liu

2 . Chn cc bo co c chnh xc cc giao thc mng lin quan n.(Chn ba.)

xc nh cu trc ca lp c th ca PDU

dictate lm th no thc hin chc nng lp

phc tho cc chc nng cn thit cho truyn thng gia cc lp

hn ch s cn thit cho kh nng tng thch ca phn cng

yu cu encapsulations lp ph thuc

loi b tiu chun ha gia cc nh cung cp


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3 . Hai chc nng ng gi l g?(Chn hai.)

theo di s chm tr gia cc thit b cui

cho php cc mng li ng li nht qun lin lc

cho php sa i ca d liu gc trc khi truyn

xc nh cc mu d liu nh mt phn ca cng mt thng tin lin lc

m bo rng cc mnh d liu c th c hng dn n cc thit b kt thc chnh

xc nhn

4 . Chc nng chnh ca thng tin Trailer gia tng bi s gi gn lp lin kt d liu l

g?

h tr pht hin li

m bo n t hng ca d liu

cung cp giao hng n ch chnh xc

xc nh cc thit b trn mng li a phng

h tr cc thit b trung gian vi ch bin v la chn con ng

5 - Hai lp ca m hnh OSI c cc chc nng tng t nh cc lp m hnh TCP / IP

Network Access? (Chn hai.)

Mng li

Giao thng vn ti

Vt l

Lin kt d liu

Phin

6 - PDU l g?

tham nhng ca mt khung hnh trong qu trnh truyn

d liu tp hp li ti im n

cc gi tin truyn li do thng tin lin lc b mt

ng gi lp c th


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7 - c trng mt cch chnh xc lin quan kt thc cc thit b trong mt mng?

qun l cc lung d liu

bt ngun t lu lng d liu

retime v truyn li tn hiu d liu

xc nh con ng cho d liu

8 .

Hy tham kho trin lm."Cell" ti a ch IP 10.0.0.34 thnh lp mt phin IP vi

"in thoi IP 1" ti a ch IP 172.16.1.103.Da trn ha, thit b loi tt nht m t

cc chc nng ca thit b khng dy "Cell A?"

thit b ch

mt thit b cui cng

mt thit b trung gian

mt thit b phng tin truyn thng

9 -


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Hy tham kho trin lm.Ba nhn xc nh ng cc loi mng cho cc phn on

mng c hin th?(Chn ba.)

Mng A - WAN

Mng B - WANMng C - LAN

Mng B - MAN

Mng C - WAN

Mng A - LAN

10 - Ba tuyn b tt nht m t mt Local Area Network (LAN)?(Chn ba.)

LAN thng trong mt khu vc a l duy nht.

Mng c qun l bi mt t chc duy nht.

Cc kt ni gia cc phn on trong mng LAN thng l thng qua mt kt ni cho

thu.

An ninh v kim sot truy cp ca mng c kim sot bi mt nh cung cp dch v.

LAN cung cp dch v mng v truy cp vo cc ng dng cho ngi dng trong mt t

chc chung.Mi cui ca mng kt ni vi mt nh cung cp dch v vin thng (TSP).

11 -


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Hy tham kho trin lm.Hn mng m t qu trnh d liu an xen th hin trong

hnh?

ng ng

PDU

trc tuyn

ghp knh

ng gi

12 . Mc ch chnh ca Layer 4 cng chuyn nhng l g?

xc nh ccthit b trn cc phng tin truyn thng a phng

xc nh cc bc nhy gia ngun v ch

xc nh cc thit b trung gian con ng tt nht thng qua mng

xc nh ngun gc v thit b u cui ch ang truyn thng

xc nh cc qu trnh hoc dch v ang giao tip trong cc thit b u cui

13 - Thit b c coi l mt thit b trung gian ?

tp tin my ch

in thoi IP

my tnh xch tay

my in

chuyn i
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14 -

Hy tham kho trin lm.C thi hn xc nh ng loi thit b l bao gm trong

khu vc B?

ngun

kt thc

chuyn giao

trung gian

15 -

Hy tham kho trin lm.Loi mng c th hin?
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WAN

MAN

LAN

WLAN

16 - Lp gi gn cc phn on thnh cc gi ?

vt l

lin kt d liu

mng

giao thng vn ti

17 . iu g c th c xc nh bng cch kim tra cc tiu lp mng ?

thit b ch trn cc phng tin truyn thng a phng

a ch my ch lu tr ch

cc bit s c chuyn qua cc phng tin truyn thng

ng dng m ngun hoc qu trnh to ra cc d liu

18 .

Hy tham kho trin lm.Tp hp cc thit b ch cha cc thit b u cui?


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A, C, D

B, E, G, H

C, D, G, H, I, J

D, E, F, H, I, J

E, F, H, I, J

19 - Trong qu trnh ng gi, nhng g xy ra lp lin kt d liu ?

Khng c a ch c thm vo.

a ch logic c thm vo.

Cc a ch vt l c thm vo.

Cng s lng qu trnh c thm vo.

20 . Mc ch ca lp TCP / IP Network Access l g ?

xc nh ng dn v chuyn mch gi

trnh by d liu

tin cy, kim sot dng chy, v pht hin li

kim sot mng li truyn thng

phn chia cc phn on thnh cc gi

21 . Theo ng th t ca cc lp ca m hnh OSI t tng cao nht cc lp thp

nht l g?

vt l,mng li, ng dng, lin kt d liu, trnh by, phin, giao thng vn ti

ng dng, vt l, phin, giao thng vn ti, mng li, lin kt d liu, trnh by

ng dng, trnh by, th, phin, lin kt d liu, giao thng, mng

ng dng, trnh by, phin,giao thng vn ti, mng li, lin kt d liu, th

trnh by, lin kt d liu, phin, giao thng, mng li, vt l, ng dng

ccan 1 chapter 2

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