1. In ARQ, a NAK is sent by the recipient if the message was received correctly.
ID: 3917649 • Letter: 1
Question
1. In ARQ, a NAK is sent by the recipient if the message was received correctly. (True or False)
2. Ethernet is an example of an asynchronous data link layer protocol. (True or False)
3.
Which of the following is not a function of the data link layer?
Acting as a traffic cop - determining which workstation can access the network
Defining how a receiver knows where a character or entire message begins and ends
Placing an IP address in the frame
Error detection
a.Acting as a traffic cop - determining which workstation can access the network
b.Defining how a receiver knows where a character or entire message begins and ends
c.Placing an IP address in the frame
d.Error detection
Explanation / Answer
1)
Answer: False
explanation: NAK is sent by the recipient if the message was received incorrectly.
2)
Answer: True
Yes..Ethernet is the example for asynchronus data link layer protocol
3)
Answer: C
all other funcions are part of data link layer
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