Data Communications MCQ (Multiple Choice Questions) PDF - 146

MCQ 726: The mode in which each station can send and receive data but not at the same time is called

1. half duplex
2. simplex
3. full duplex
4. duplex

MCQ 727: Virtual Local Area Networks (VLANs) provide

1. time-efficiency and security
2. reduce network traffic
3. both a and b
4. none of the above

MCQ 728: The main focus point in congestion control and Quality of Services is

1. data protocol
2. data layer
3. data flow
4. data traffic

MCQ 729: Three different encoding schemes were used for all the implementations in

1. standard Ethernet
2. fast Ethernet
3. Gigabit Ethernet
4. 10 Gigabit Ethernet

MCQ 730: Error control in the data link layer is based on

1. automatic repeat request
2. manually repeat request
3. situation based
4. terminated-request