Server 1 sends a message to workstation 2:

Question 11 options:

	All Workstations
	Workstations 1, 2, and 3
	Workstations 1, 2, 3, 7, and 8
	Only Workstation 2

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Question 12

In a sliding window system with each byte numbered, Station A sends a packet with bytes numbered 801 to 900. If the packet arrives with no errors, how does Station B respond?

Question 12 options:

	Station B sends ACK 900
	Station B sends ACK
	Station B sends ACK 901
	Station B sends NAK 901

Question 13

For characters 1001011, 1011111, 0101010, 1010101, and 0011001 longitudinal parity bits with odd parity have been used. Complete both parity column and parity row?

Data Parity

column

DATA								Column Parity
	1	0	0	1	0	1	1	?
	1	0	1	1	1	1	1	?
	0	1	0	1	0	1	0	?
	1	0	1	0	1	0	1	?
	0	0	1	1	0	0	1	?
Row Parity	?	?	?	?	?	?	?	?

You may copy the data shown below in your answer box and then put values for "?" mark. Or, you can just write the values of parity column and parity row in the following way:

Column Parity :

Row Parity :