1) Which are the major divisional categories of an Internet Link Technologies?
a. Within a campus
b. Wide Area Links
c. Dial-Up Access
d. All of the above
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2) What does the virtual link service of Committed Information Rate (CIR) offered by the frame relay network convey?
a. Guarantee of a minimum bandwidth
b. Guarantee of a maximum bandwidth
c. Guarantee of packet switching along the pre-established path
d. Guarantee of encapsulating incoming packets in a frame relay header
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3) Which among the below mentioned communication assets specifies an agreement of a common language used by the two computers for the purpose of exchanging messages?
a. Protocols
b. Packets
c. Routers
d. Datagrams
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4) Which element of a protocol represents the meaning of each section of bits?
a. Syntax
b. Semantics
c. Timing
d. All of the above
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5) Which standards are approved or recognized officially by an organization in terms of laws and regulations?
a. De facto
b. De jure
c. Both a & b
d. None of the above
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6) Which application programs are supported (or hosted) by the end systems in the network edge operations?
a. Web browser Programs
b. Web Server Programs
c. E-mail reader programs
d. All of the above
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7) Which kind of undesirable factors are generated due to an acknowledgement process of transmission and reception of messages in any reliable service?
a. Overheads
b. Delays
c. Errors
d. Interference
a. A & B
b. B & C
c. C & D
d. B & D
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8) What happens during the failure of a router in the virtual switching circuit?
a. All the crashed packets get lost
b. All the virtual circuits that passes through the router get terminated
c. Congestion control becomes extremely difficult
d. Sequence of packets arrival gets disrupted
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Answer
Explanation
Related Ques
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ANSWER: All the virtual circuits that passes through the router get terminated
Explanation:
No explanation is available for this question!
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9) Which type of virtual circuit has an ability of providing the point-to-point and dedicated connections for a longer period of time?
a. Switched Virtual Circuit (SVC)
b. Permanent Virtual Circuit (PVC)
c. Multicast Virtual Circuit (MVC)
d. All of the above
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10) What kind of information is provided by switched Virtual Circuit (SVC) especially in the call set-up phase?
a. Bandwidth allocation & Quality of Service parameters
b. Virtual Channel Identifiers
c. Both a & b
d. None of the above
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11) What are the interoffice lines used in the circuit switching usually referred as?
a. Loops
b. Nodes
c. Trunks
d. Switches
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12) Which among the below specified switching networks indulges the store and forward mechanism at its operational level?
a. Circuit Switching
b. Packet Switching
c. Message Switching
d. All of the above
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13) What does the infinity over the block size indicate in the message switching networks?
a. Routers should have disks to buffer long blocks
b. Even a single block may tie-up a router
c. Call set-up facility
d. Necessity to increase the storage capacity at each node
a. A & B
b. B & C
c. C & D
d. A & D
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14) Match the switching networks with associated charge dependency factors:
a. Circuit Switching ---------------- 1.Number of bytes & distance
b. Packet switching ---------------- 2. Number of bytes & connect time
c. Message Switching ------------ 3. Distance & time
a. A- 3, B- 2, C- 1
b. A- 2, B- 1, C- 3
c. A- 1, B- 2, C- 3
d. A- 3, B- 1, C- 2
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15) What is the crucial function of Protocol Data Unit (PDU) in layer communication process?
a. Transfer of user data by N+1 layer to N and N-1 layers
b. Exchange of information with the help of peer entities over the different network sites
c. Combination of Service Data Unit (SDU) & Protocol Control Information (PCI)
d. Passage of temporary parameter between N & N-1 layers apprise service function
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Answer
Explanation
Related Ques
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ANSWER: Combination of Service Data Unit (SDU) & Protocol Control Information (PCI)
Explanation:
No explanation is available for this question!
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16) Which salient characteristic/s play/s a significant role in determining the effectivity of data communication system?
a. Accuracy
b. Delivery
c. Timeliness
d. All of the above
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17) Which form of data flow strategy is adopted in simplex mode of data communication system?
a. Uni-directional
b. Bi-directional
c. Multi-directional
d. All of the above
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18) Which kind of communication mode has a provision of sharing channel capacity in addition to the transmission and reception of data at a simultaneous level?
a. Simplex
b. Half-duplex
c. Full-duplex
d. None of the above
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19) The performance of any network totally depends on ___________
a. Transit time
b. Response time
c. Both a & b
d. None of the above
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20) Which factors are responsible in determining the reliability of a network?
a. Number of users & type of transmission media
b. Accuracy, Robustness, Failure rate & Establishment time
c. Hardware & Software
d. All of the above
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Answer
Explanation
Related Ques
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ANSWER: Accuracy, Robustness, Failure rate & Establishment time
Explanation:
No explanation is available for this question!
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21) Which strategy of network connection possesses an ability of sharing the dedicated link capacity only between two nodes?
a. Point-to-point
b. Multi-point / Multi-drop
c. Both a & b
d. None of the above
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22) Which kind of network category allows to communicate through common physical medium without the necessity of an intermediate switching node?
a. LAN
b. MAN
c. WAN
d. All of the above
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23) Which among the below given attributes are correct in accordance to LAN?
a. Transmission capacity is less than 1Mbps
b. Network coverage is accessible upto more than 5 square kilometers.
c. Data transmission occurs between the user stations
d. Low delay and error rate
a. A & B
b. C & D
c. B & C
d. A, B & D
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24) Which devices besides computer excogitate their applications in the form of DTEs (Digital Terminal Equipments) for official purposes while accessing through LANs?
a. Plotters
b. Printers
c. Electronic databases
d. All of the above
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25) What is the possible range of data transmission rate adopted by MAN?
a. 20- 100 Mbps
b. 34- 150 Mbps
c. 40- 190 Mbps
d. None of the above
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26) Which technique/mechanism is implemented for developing and organizing the MAN standard, contributing its sponsorship by IEEE, ANSI and RBO?
a. Distributed Queue Single Bus (DQSB)
b. Distributed Queue Dual Bus (DQDB)
c. Distributed Queue Directional Bus (DQDB)
d. Distributed Queue Data Bus (DQDB)
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27) In WAN,how are the hosts connected to each other?
a. By Subnets
b. By Routers
c. By interconnected multiple LANs
d. By nodes
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28) What is/are the major functionalities executed by the switching elements in Wide area networks?
a. Selection of precise outgoing line for an incoming data
b. Forwarding of precise data over the selected line
c. Both a & b
d. None of the above
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29) What is the purpose of an hierarchical addressing in WAN especially adopted in the functions associated with routing?
a. Identification of an interconnection strategy of input and output networks
b. Identification of small-sized packets
c. Utilization of store and forward subnets
d. All of the above
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Answer
Explanation
Related Ques
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ANSWER: Identification of an interconnection strategy of input and output networks
Explanation:
No explanation is available for this question!
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30) The requisite amount of bandwidth for transmitting voice and analog signals is _________
a. directly proportional to the data rate
b. inversely proportional to the data rate
c. directly proportional to the dataflow channel control capability
d. inversely proportional to the dataflow channel control capability
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31) Which lines are provided by the telephone companies for increasing the performance level to the maximum extent necessary for several applications in comparison to that of the dial-up connections?
a. Voice Grade Conditioning Line
b. Conditional Lines
c. Both a & b
d. None of the above
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32) What is/are the fundamental role/s of circuit switching?
a. Setting up an end-to-end path at the beginning of a session
b. Release of an end-to-end path at the end of session
c. Dedicated end-to-end path to specific application
d. All of the above
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33) When does it become possible to prefer the hierarchical technique for routing control operations in circuit switching networks?
a. When the volume of traffic is small between multiple switches
b. When the volume of traffic is large between multiple switches
c. When the volume of traffic is uncontrollable at low blocking probability
d. When the volume of traffic is determined by the state of network links
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Answer
Explanation
Related Ques
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ANSWER: When the volume of traffic is small between multiple switches
Explanation:
No explanation is available for this question!
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34) Which among the below specified consequences give rise to the generation of the sensitivity problem in an hierarchical routing control mechanism?
a. Increase in trunk utilization efficiency due to increase in an offered load
b. Decrease in trunk utilization efficiency due to decrease in an offered load
c. Increase in trunk utilization efficiency due to decrease in an offered load
d. Decrease in trunk utilization efficiency due to increase in an offered load
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Answer
Explanation
Related Ques
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ANSWER: Increase in trunk utilization efficiency due to increase in an offered load
Explanation:
No explanation is available for this question!
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35) What happens when the spare circuit is utilized in the system of hierarchical control and routing?
a. System exhibits high sensitivity to high traffic
b. System exhibits low sensitivity to high traffic
c. System exhibits consistency in the traffic flow
d. System does not get affected as it is irrespective of sensitivity
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Answer
Explanation
Related Ques
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ANSWER: System exhibits high sensitivity to high traffic
Explanation:
No explanation is available for this question!
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36) Why is the destination address examined in the header while routing the packets in datagram switching?
a. For determination of next hop in the path towards the destination
b. For determination of previous hop in the path towards the destination
c. For determination of next hop generated from the source
d. For determination of previous hop generated from the source
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Answer
Explanation
Related Ques
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ANSWER: For determination of next hop in the path towards the destination
Explanation:
No explanation is available for this question!
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37) What are the relevant drawbacks associated with an independent form of routing mechanism in datagram packet switching?
a. Traversing of the packets from same source to same destination through different paths
b. Occurrence of maximum overhead
c. Arrival of packets is not in a sequential order at the destination
d. Establishment of logical connection between source and destination
a. A, B & D
b. B, C & D
c. A, B & C
d. A, C & D
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38) The occurrence of next hops is specified and maintained in a routing table at ______
a. source
b. destination
c. each node
d. All of the above
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39) What kind of error control services are offered by the Data transfer Phase in the virtual packet switching?
a. Correct sequencing of packets
b. Correct arrival of packets
c. Both a & b
d. None of the above
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40) The sequence of the packetized information to be transmitted between the nodes in an establishment phase of virtual packet switching is ________
a. unidirectional in nature
b. bidirectional in nature
c. multi-directional in nature
d. unpredictable in nature
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