Slotted ALOHA
A. | divide time into discrete intervals |
B. | require global time synchronization |
C. | both (a) and (b) |
D. | none of these |
Option: C Explanation : Click on Discuss to view users comments. |
Start and stop bits are used in serial communication for
A. | error detection |
B. | error correction |
C. | synchronization |
D. | slowing down the communication |
Option: C Explanation : Click on Discuss to view users comments. |
In the carrier sense network, if prevailing condition is a 'channel busy', then technique used is
A. | non-persistent then it results in randomised wait and sense |
B. | 1-persistent then the channel is continually sensed |
C. | p-persistent then randomised retransmission is done |
D. | both (a) and (b) |
Option: B Explanation : Click on Discuss to view users comments. |
The systems that can be used in both priority and non-priority modes is
A. | TDM |
B. | Register insertion |
C. | Carrier sense systems |
D. | all of these |
Option: C Explanation : Click on Discuss to view users comments. |
Number of cross point needed for 10 lines in a cross point switch which is full duplex in nature and there are no self-connection is
A. | 100 |
B. | 45 |
C. | 8 |
D. | 28 |
Option: B Explanation : As all lines are full-duplex and there are no self-connections, only the cross points above the diagonal are needed. Hence formula for the number of cross points needed is n (n -1) / 2 Click on Discuss to view users comments. |