1) Frame relay networks are commonly used today for terminal-to-computer and com
ID: 644787 • Letter: 1
Question
1) Frame relay networks are commonly used today for terminal-to-computer and computer-to-computer communications.
a) True b) False
2) Real computers today frequently use network protocol stacks built using the seven-layer OSI model.
a) True b) False
3) The Application layer of the TCP/IP protocol stack maps roughly to the Application, Presentation, and part of the Session layers of the OSI model
a) True b) False
4) If an exchange of information is interrupted, such as due to a failure in the communication network, ___ techniques may be used to restore the systems to a known-good state.
a) error correction b) flow control c) routing d) recovery
5) ___ is needed to ensure the sending system does not overwhelm the receiver by transmitting data too quickly.
a) recovery b) flow control c) error detection d) error correction
6) Each application-layer service on a computer has a unique identifier called a ___ that allows the transport layer to direct incoming traffic to the correct service.
a) extranet b) IP address c) port or SAP d) physical address
Explanation / Answer
1) Frame relay networks are commonly used today for terminal-to-computer and computer-to-computer communications.
b) False
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2) Real computers today frequently use network protocol stacks built using the seven-layer OSI model.
a) True
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3) The Application layer of the TCP/IP protocol stack maps roughly to the Application, Presentation, and part of
the Session layers of the OSI model
a) True
---------------------------------------------------------------------------------------------------------------------------------------
4) If an exchange of information is interrupted, such as due to a failure in the communication network, a) error correction techniques may be used to restore the systems to a known-good state.
a) error correction
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5) Flow control is needed to ensure the sending system does not overwhelm the receiver by transmitting data too quickly.
b) flow control
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6) Each application-layer service on a computer has a unique identifier called a physical address that allows the transport
layer to direct incoming traffic to the correct service.
correct answer:
d) physical address
Hope this helps you..
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