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
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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).
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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
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