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Mixed Quiz
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1

The _______ layer changes bits into electromagnetic signals.
A)Physical
B)Transport
C)None of the above
D)Data link
2

The physical layer is concerned with the transmission of _______ over the physical medium.
A)Programs
B)Protocols
C)Bits
D)Dialogs
3

Mail services are available to network users through the _______ layer.
A)Data link
B)Physical
C)Application
D)Transport
4

As the data packet moves from the lower to the upper layers, headers are _______.
A)Added
B)Rearranged
C)Modified
D)Subtracted
5

As the data packet moves from the upper to the lower layers, headers are _______.
A)Removed
B)Added
C)Rearranged
D)Modified
6

The _______ layer lies between the network layer and the application layer.
A)Data link
B)Physical
C)Transport
D)None of the above
7

Layer 2 lies between the physical layer and the _______ layer.
A)Data link
B)Network
C)Transport
D)None of the above
8

When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer.
A)Application
B)Physical
C)Transport
D)None of the above
9

Which layer functions as a liaison between user support layers and network support layers?
A)Network layer
B)Transport layer
C)Physical layer
D)Application layer
10

What is the main function of the transport layer?
A)Process-to-process delivery
B)Node-to-node delivery
C)Synchronization
D)Updating and maintenance of routing tables
11

Which of the following is an application layer service?
A)Remote log-in
B)File transfer and access
C)Mail service
D)All the above
12

The Internet model consists of _______ layers.
A)Three
B)Five
C)Seven
D)Eight
13

The process-to-process delivery of the entire message is the responsibility of the _______ layer.
A)Physical
B)Network
C)Transport
D)Application
14

The _______ layer is the layer closest to the transmission medium.
A)Network
B)Physical
C)Data link
D)Transport





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