Thursday, 21 January 2016

IBPS Exam : Computer Awareness Questions Bank -3

Here is the important expected Computer Awareness Questions Bank -3 for IBPS Bank PO/SO/Clerk, RRB, RBI Officer and Assistant Exam. These Computer Network Questions and Answers are must for every aspirants.

Q.61. PRI ISDN service carries 23 bearer and 1 data channels with a total of 1544 kbps.

Q.62. Bus topology usually requires terminators at both ends of the cable.

Q.63. In half-duplex transmission mode both station can transmit and receive but not at the same time.

Q.64. Logical addressing and routing is the function of network layer.

Q.65. Mail services are being made available by application layer.

Q.66. Manchester coding is one of the polar encoding techniques which effectively eliminate DC component of the signal.

Q.67. In Diff. Manchester, the transition in the middle is used for synchronization.

Q.68. The number of signal units per second is called baud-rate.

Q.69. In QAM both amplitude and phase of the carrier signal are varied.

Q.70. In stop-and-wait flow control technique, every frame is acknowledged.

Q.71. Physical Layer deals with the physical and electrical specifications.

Q.72. Full-duplex transmission mode can be characterized simply as "two way simultaneous transmission/reception".

Q.73. All NICs are manufactured having unique ethernet address/MAC number.

Q.74. 10BaseT can have a maximum segment length of 100 meters.

Q.75. The words and numbers '10', ‗Base‘ and 'T' in 10BaseT respectively indicate 10 Mbps baseband and twisted pair.

Q.76. Carrier extension and Frame bursting are features added to 802.3 by the gigabit ethernet standards.

Q.77. 1000Base-T uses 4 pairs of Cat-5 UTP.

Q.78. Flooding is a packet routing method in which incoming packet is sent to every neighbor except where it came from.

Q.79. In Distance Vector Routing a router receives routing information from all of its neighbors and by using the knowledge about its distance to its neighbors it constructs its own routing table which in turn used by the router and distributed to the neighbors.

Q.80. Hierarchical Routing reduces the memory requirements at some penalty on the path optimality in large networks with large number of routers.

Q.81. If packets from a live audio/video source are to be distributed to multiple destinations we need to talk about Broadcast Routing.

Q.82. The 802.11 configuration in which no central coordination is used for is called Distributed

Q.83. Coordination Function

Q.84. Multipath Reception is a problem in wireless systems, which deteriorates the received signal at the receiver.

Q.85. When there is no central coordination is employed in 802.11, channel access privileges (who transmits when) are determined by a protocol called Carrier Sense Multiple Access / Collision Avoidance.

Q.86. In wireless ethernet, when stations directly talk to each other, a station wanting to transmit data when the channel is idle transmits Request To Send (RTS) frame first.

Q.87. The small clusters of stations communicating using Bluetooth are called Piconets.

Q.88. There can be only seven active slaves in a Bluetooth station cluster.

Q.89. The master station in a Bluetooth cluster employs Time Division Multiplexing in order to communicate with slaves and send commands to them.

Q.90. The destination address field in a Bluetooth frame is three bits

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