Computer Fundamentals
Data Communication and Networking
Q. Which of the following statements is correct for the use of packet switching?
A.  the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individ B.  the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied C.  by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved. D.  All of the above E.  None of the above
Similar Questions
1. Protocols are
A.  Agreements on how communication components and DTE B.  Logical communication channels used for transferri C.  Physical communication channels used for transferr D.  None of the above
2. The method of communication in which transmission takes place in both directions, but only one direction at a time is called
A.  Simplex B.  Four wire circuit C.  Full Duplex D.  Half Duplex
3. Error detection at the data link level is achieved by
A.  Bit Stuffing B.  Cyclic Redundancy Code C.  Hamming Code D.  Equalization
4. Which of the following is a wrong example of network layer?
A.  Internet Protocol (IP) - ARPANET B.  X.25 Packet Level Protocol (PLP)-ISO C.  Source routing and domain naming-USENet D.  X.25 level 2-ISO
5. The topology with highest reliability is:
A.  Bus topology B.  Star topology C.  Ring topology D.  Mesh topology
6. "BAUD" rate means
A.  The number of bits transmitted per unit time. B.  The number of bytes transmitted per unit time. C.  The rate at which the signal changes. D.  None of the above
7. Start and stop bits are used in serial communication for
A.  Error detection B.  Error correction C.  Synchronization D.  Slowing down the communication
8. Unmodulated signal coming from a transmitter is know as
A.  Carrier signal B.  Baseband signal C.  Primary signal D.  None of these
9. How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?
A.  300 B.  240 C.  250 D.  275
10. Which one of the following network uses dynamic or adaptive routing?
A.  TYMNET B.  ARPANET C.  SNA(IBM's System Network Architechture) D.  None of these
COMPUTER FUNDAMENTALS TOPICS