CCNA 1 Chapter 2
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 PDU’s
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
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
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
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
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
14.
Refer to the exhibit. Which term
correctly identifies the device type that is included in the area B?
source
end
transfer
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
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
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
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