Basic Computer Networks MCQ Question and Answer
Basic Computer Networks MCQ Question and Answer
54. Method of communication in which transmission takes place in both directions, but only in one direction at a time, is called
- simplex
- four wire circuit
- full duplex
- half duplex
55. Error detection at the data link level is achieved by
- bit stuffing
- cyclic refundancy codes
- Hamming codes
- equalization
56. An example of a network layer is
- Internet Protocol (IP)-ARPANET
- x.25 Packet Level Protocol (PLP)-ISO
- Source routing and domain naming-USENET
- All of these
57. The topology with highest reliability is
- Bus Topology
- star topology
- ring topology
- mesh topology
58. baud means the
- number of bits transmitted per unit time
- number of bytes transmitted per unit time
- rate at which the signal changes
- none of these
59. Start and stop bits are used in serial communication for
- error
- detection
- synchronization
- slowing down the communication
60. Unmodulated signal coming from a transmitter is known as
- carrier signal
- baseband signal
- primaryf singal
- none of these