MCQOPTIONS
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MCQOPTIONS
This section includes 389 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics and Telecommunication Engineering [ENT knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
_________ broadcasts packets, but creates loops in the systems. |
| A. | forwarding |
| B. | flooding |
| C. | backwarding |
| D. | none of the above |
| Answer» C. backwarding | |
| 52. |
In multicast routing, each involved router needs to construct a ________ path tree for each group. |
| A. | average |
| B. | longest |
| C. | shortest |
| D. | none of the above |
| Answer» D. none of the above | |
| 53. |
In unicast routing, each router in the domain has a table that defines a ______ path tree to possible destinations |
| A. | average |
| B. | longest |
| C. | shortest |
| D. | none of the above |
| Answer» D. none of the above | |
| 54. |
In _______, the router may forward the received packet through several of its interfaces |
| A. | unicasting |
| B. | multicasting |
| C. | broadcasting |
| D. | none of the above |
| Answer» C. broadcasting | |
| 55. |
In ______, the router forwards the received packet through only one of its interfaces. |
| A. | unicasting |
| B. | multicasting |
| C. | broadcasting |
| D. | none of the above |
| Answer» B. multicasting | |
| 56. |
The Open Shortest Path First (OSPF) protocol is an intra-domain routing protocol based on _______ routing |
| A. | distance vector |
| B. | link state |
| C. | path vector |
| D. | none of the above |
| Answer» C. path vector | |
| 57. |
The metric used by _______ is the hop count |
| A. | ospf |
| B. | rip |
| C. | bgp |
| D. | none of the above |
| Answer» C. bgp | |
| 58. |
In ________, each node maintains a vector (table) of minimum distances to every node. |
| A. | path vector |
| B. | distance vector |
| C. | link state |
| D. | none of the above |
| Answer» C. link state | |
| 59. |
The input and output ports of a router perform the ________ layer functions of the router. |
| A. | physical and data link |
| B. | network |
| C. | transport |
| D. | none of the above |
| Answer» B. network | |
| 60. |
A _______ routing table contains information entered manually. |
| A. | static |
| B. | dynamic |
| C. | hierarchical |
| D. | none of the above |
| Answer» B. dynamic | |
| 61. |
The idea of address aggregation was designed to alleviate the increase in routing table entries when using ________ |
| A. | classful addressing |
| B. | classless addressing |
| C. | both a and b |
| D. | none of the above |
| Answer» C. both a and b | |
| 62. |
How the leader node maintains and migrates the collaborative processing group. Arrange the following steps in correct order a: sensors are selected to acquire new measurements using the sensor selection algorithm b: after the leader is elected, it initializes a belief state as uniform disk centered at its own location c: as the target moves, the sensors that did not previously detect may begin detecting |
| A. | c b a |
| B. | a c b |
| C. | b c a |
| D. | b a c |
| Answer» D. b a c | |
| 63. |
The error in localization, measured as mean squared error , generally ___________as more sensor measurements are incorporated |
| A. | decreases |
| B. | increases |
| C. | remains same |
| D. | can not predict |
| Answer» B. increases | |
| 64. |
___________is a method that allow the nodes in a network to determine their geographic positions on their own as much as possible, during the network initialization process |
| A. | self tracking |
| B. | self localization |
| C. | a or b |
| D. | neither a nor b |
| Answer» C. a or b | |
| 65. |
___________routing states that "start in the face of G just beyond s along sd and walk around that face. Stop if d is reached or if the segment sd is about to be crossed. In the latter case, cross over into the next face of G along sd and repeat the process" |
| A. | greedy distance |
| B. | compass |
| C. | convex perimeter |
| D. | none of above |
| Answer» D. none of above | |
| 66. |
In___________ routing, among the neighbors y of x closer to d than x, pick the one closest to d |
| A. | greedy distance |
| B. | compass |
| C. | both |
| D. | none of above |
| Answer» B. compass | |
| 67. |
For communication, the main consideration is that communication paths consists of many short hops can be___________ energy efficient than paths using a few long hops |
| A. | more |
| B. | less |
| C. | equal |
| D. | can not specify |
| Answer» B. less | |
| 68. |
To uniquely determine the location on a two-dimensional plane, one needs alleast ___________independent distance measurements |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| Answer» D. four | |
| 69. |
The position estimation may be accomplished by |
| A. | triangulation computation |
| B. | least square computation |
| C. | triangulation and least square computation both |
| D. | none of above |
| Answer» D. none of above | |
| 70. |
this is an essential capability for a sensor network in many practical applications |
| A. | localizing of objects |
| B. | tracking moving objects |
| C. | localizing and tracking moving objects |
| D. | either localizing or tracking moving objects |
| Answer» D. either localizing or tracking moving objects | |
| 71. |
Battery-driven systems are those systems which are designed taking into consideration mainly _______ ( ) |
| A. | battery and its internal characteristics |
| B. | an electrolyte medium |
| C. | environmental impact |
| D. | none of the above |
| Answer» B. an electrolyte medium | |
| 72. |
In ………. the router forwards the receive packet through only one of its interfaces. |
| A. | unicasting |
| B. | multicasting |
| C. | broadcasting |
| D. | point to point |
| Answer» C. broadcasting | |
| 73. |
In ……. routing, the mask and the destination address are both 0.0.0.0 in routing table. |
| A. | next-hop |
| B. | host-specific |
| C. | network-specific |
| D. | default |
| Answer» E. | |
| 74. |
In OSPF, a ……… link is a network with several routers attached to it. |
| A. | point-to-point |
| B. | transient |
| C. | stub |
| D. | multipoint |
| Answer» C. stub | |
| 75. |
When a direct delivery is made, both the deliverer and receiver have the same …. |
| A. | routing table |
| B. | host id |
| C. | ip address |
| D. | net id |
| Answer» E. | |
| 76. |
Which of the following produces high traffic network? |
| A. | variable routing |
| B. | flooding |
| C. | fixed routing |
| D. | random routing |
| Answer» C. fixed routing | |
| 77. |
The technique which requires no network information required is …. |
| A. | flooding |
| B. | variable routing |
| C. | fixed routing |
| D. | random routing |
| Answer» B. variable routing | |
| 78. |
To create a neighbourhood relationship, a router running BGP sends an ………. message. |
| A. | open |
| B. | update |
| C. | keep alive |
| D. | close |
| Answer» C. keep alive | |
| 79. |
In ………. a route is selected for each destination pair of nodes in the network. |
| A. | flooding |
| B. | variable routing |
| C. | fixed routing |
| D. | random routing |
| Answer» D. random routing | |
| 80. |
For purposes of routing, the Internet is divided into ……. |
| A. | wide area networks |
| B. | autonomous networks |
| C. | local area networks |
| D. | autonomous system |
| Answer» E. | |
| 81. |
For centralized routing the decision is made by some designated node called …… |
| A. | designated center |
| B. | control center |
| C. | network center |
| D. | network control center |
| Answer» E. | |
| 82. |
In ……. routing the least cost route between any two nodes is the minimum distance. |
| A. | path vector |
| B. | distance vector |
| C. | link state |
| D. | switching |
| Answer» C. link state | |
| 83. |
The term …….. Refers to which node or nodes in the network are responsible for the routing decision. |
| A. | decision place |
| B. | routing place |
| C. | node place |
| D. | switching place |
| Answer» B. routing place | |
| 84. |
The Routing Information Protocol (RIP) is an intra domain routing based on ……..routing. |
| A. | distance vector |
| B. | link state |
| C. | path vector |
| D. | distance code |
| Answer» B. link state | |
| 85. |
An/A ……….routing scheme is designed to enable switches to react to changing traffic patterns on the network. |
| A. | static routing |
| B. | fixed alternative routing |
| C. | standard routing |
| D. | dynamic routing |
| Answer» D. dynamic routing | |
| 86. |
If there is only one routing sequence for each source destination pair, the scheme is known as ….. |
| A. | static routing |
| B. | fixed alternative routing |
| C. | standard routing |
| D. | dynamic routing |
| Answer» C. standard routing | |
| 87. |
The ……… protocol allows the administrator to assign a cost, called the metric, to each route. |
| A. | ospf |
| B. | rip |
| C. | bgp |
| D. | bbgp |
| Answer» B. rip | |
| 88. |
Which of the following is not the requirement of routing function? |
| A. | correctness |
| B. | robustness |
| C. | delay time |
| D. | stability |
| Answer» D. stability | |
| 89. |
Tracking multiple interacting targets distributed over a geographical region is significantly more challenging for following reasons |
| A. | curse of dimensionality |
| B. | mapping to distributed platforms |
| C. | mapping to centralised platforms |
| D. | all of above |
| Answer» E. | |
| 90. |
Localizing and tracking of objects is an essential capability for a sensor network in many practical applications |
| A. | applicable only for stationary objects |
| B. | applicable for stationary as well as moving objects |
| C. | applicable only for moving objects |
| D. | none of above |
| Answer» C. applicable only for moving objects | |
| 91. |
Network size is minimum for (in terms number of nodes) |
| A. | zigbee |
| B. | wibree |
| C. | z-wave |
| D. | none of the above |
| Answer» C. z-wave | |
| 92. |
Network size is maximum for (in terms number of nodes) |
| A. | zigbee |
| B. | rubee |
| C. | wibree |
| D. | z-wave |
| Answer» B. rubee | |
| 93. |
Data range is minimum for (in terms of distance in meters) |
| A. | zigbee |
| B. | rubee |
| C. | wibree |
| D. | z-wave |
| Answer» D. z-wave | |
| 94. |
Data range is maximum for (in terms of distance in meters) |
| A. | zigbee |
| B. | rubee |
| C. | wibree |
| D. | z-wave |
| Answer» E. | |
| 95. |
Frequency used for communication in Z-Wave standard is |
| A. | 2.4 ghz |
| B. | 2.4 mhz |
| C. | 860 mhz |
| D. | none of the above |
| Answer» D. none of the above | |
| 96. |
IEEE 802.15 standard is used with |
| A. | zigbee |
| B. | wibree |
| C. | z-wave |
| D. | a and b both |
| Answer» E. | |
| 97. |
IEEE 802.15.1 standard is used with |
| A. | zigbee |
| B. | rubee |
| C. | wibree |
| D. | z-wave |
| Answer» D. z-wave | |
| 98. |
IEEE 802.15.4 standard is used with |
| A. | zigbee |
| B. | rubee |
| C. | wibree |
| D. | z-wave |
| Answer» B. rubee | |
| 99. |
In Bluetooth, the _________ sublayer, is roughly equivalent to the LLC sublayer in LANs. |
| A. | radio |
| B. | baseband |
| C. | l2cap |
| D. | none of the above |
| Answer» D. none of the above | |
| 100. |
In Bluetooth, the _______ layer is roughly equivalent to the Physical layer of the Internet model. |
| A. | radio |
| B. | baseband |
| C. | l2cap |
| D. | none of the above |
| Answer» B. baseband | |