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COMPUTER NETWORK - 1





Model Question Paper -2009
Computer Networks
Question Number 1 to 20 -1 mark Question.
Question Number 21 to 31-2 Marks Question.
Question Number 32 to 38 - 4 Marks Question.

====================================================
1 In fiber optics, the signal source is __________ waves.
a. light
b. radio
c. infrared
d. very low frequency
====================================================
2 The ________ layer is responsible for node to node packet delivery.
a) session
b) network
c) physical
d) data link
====================================================
3 1. The speed mismatch between the sender and the receiver is called _________.
a. error control
b speed error
c flow control
d transmission control
====================================================
4 FTP runs exclusively over _________ .
a) HTTP
b) TCP
c) SMTP
d) HTML
====================================================
5 BSC is developed by ______ .
a) Motorola
b) IBM
c) Nokia
d) Toshiba
====================================================
6 Which of the following primarily uses guided media?
a. cellular telephone system
b. local telephone system
c. satellite communications
d. radio broadcasting
====================================================
7 When we talk about unguided media, usually we are referring to_____________ .
a. metallic wires
b. nonmetallic wires
c. the atmosphere
d. none of the above
====================================================
8 This is the ability to increase system performance gradually as the workload grows just by adding processors.
a) multipliability
b) inheritance
c) scalability
d) vectorization
====================================================
9 PSTN represents _________ .
a) private swithced transmission network
b) public switched telephone network
c) private switched telephone network
d) public switched transmission network
====================================================
10 SMTP refers to ___________ .
a) Simple mail transfer protocol
b) Small mail transfer protocol
c) Simple mass transfer protocol
d) Small mail transfer protocol
====================================================
11 Class A , Class B and Class C together are referred to as_______
addressing or primary address class if the IP.
a) classful
b) eventful
c) graded
d) ranked
====================================================
12 ________ overcame the registered number issue by assigning each organization one network numbers from the IPv4 address
space.
a) Tracking
b) Subnetting
c) Packeting
d) Switching
====================================================
13 Equipment that controls the physical and electrical termination of the ISDN at the user’s premises is called ______.
a. NT1
b. NT2
c. NT3
d. NT4
====================================================
14 A data channel contains ________________ .
a. control information
b. management information
c. miscellaneous functions
d. user data/information
====================================================
15 QOS represents __________ .
a) Quality of System
b) Quality of Service
c) Queue of System
d) Queue of Service
====================================================
16 ISDN is an acronym for______________.
a.Inform ation Services for Digital Networks
b.Internetwork System for Data Networks
c.Integrated Services Digital Networks
d.Integrated Signals Digital Network
====================================================
19. Reference point ____ is the specification for connecting NT1 with NT2.
a. R
b. S
c. T
d. U
====================================================
20 The radio communication spectrum is divided into bands based on _________.
a. amplitude
b. frequency
c. cost and hardware
d. transmission medium
====================================================
21 Which international agency is concerned with standards in science and technology?
a. ISO
b. OSI
c. EIA
d. ANSI
====================================================
22 __________ blocks are identified using syntax similar to that of IPv4 addresses: a four-part dotted-decimal address, followed by
a slash, then a number from 0 to 32: A.B.C.D/N.
a) IPv4 CICR
b) IPv4 MIDR
c) IPv4 CIMR
d) IPv4 CIDR
====================================================
23 The term "e-mail" applies both to the Internet e-mail system based on the __________ and to _________ allowing users within one organization to e-mail each other.
a) FTP , Intranet Systems
b) SMTP , Intranet Systems
c) FTP , Internet Systems
d) SMTP , Internet Systems
====================================================
24 Which agency created standards for telephone communications ( V series) and for network interfaces and public networks ( X series)?
a. ATT
b. ITU-T
c. ANSI
d. ISO
====================================================
25 _______ CSMA is less greedy whereas ________ CSMA is selfish .
a) Non-persistent , 1-persistent
b) 1-persistent, p-persistent
c) p-persistent, 1-persistent
d) 1-persistent, non-persistent
====================================================
26 The BRI is composed of ____________.
a. two B channels
b. one H channel
c. one D channel
d. a and c
====================================================
27 IP Packet is a _________ and ________- based model.
a) connectionless , network
b) connection, network
c) connectionless, datagram
d) connection, datagram
====================================================
28 _____________ are special-interest groups that quickly test,evaluate, and standardize new technologies.
a. Forums
b. Regulatory agencies
c. Standards organizations
d. All of the above
====================================================
29 When the angle of refraction is ______ the angle of incidence, the light beam is moving from a more dense to a less dense medium.
a. more than
b. less than
c. equal to
d. none of the above.
====================================================
30 For downlinks, current design practice is to use a minimum elevation angle of about _____ degrees to _______ degrees depending on the frequency.
a) 45 , 90
b) 40, 60
c) 10 , 35
d) 5 , 20
====================================================
31 The ALOHA network was created at the University of _______ in 1970 under the leadership of __________.
a) Hawaii, John Abramson
b) Texas , John Abramson
c) Texas , Norman Abramson
d) Hawaii , Norman Abramson
====================================================
32 Consider the following statements :
P) The Aloha protocol is an OSI layer 2 protocol for LAN.
Q) Pure Aloha had a maximum throughput of about 18.4%.
Which of the following is correct?
a) Both Statements P and Q are True
b) Both Statements P and Q are False
c) Statement P is True and Statement Q is False
d) Statement P is False and Statement Q is True.
====================================================
33 Consider the following statements:
P) Gopher is a distributed document search and retrieval network
protocol designed for the Internet.
Q) The original Gopher system was released in late spring of
1981 by Mark McCahill, Farhad Anklesaria, Paul Lindner, Dan
Torrey, and Bob Alberti of the University of Minnesota.
Which of the following is correct?
a) Both Statements P and Q are True
b) Both Statements P and Q are False
c) Statement P is True and Statement Q is False
d) Statement P is False and Statement Q is True
====================================================
34 Consider the following statements :
P) Based on transmission technology networks are classified as broad cast
links and point to point links.
Q) Geographically localized networks or smaller networks tend to use
broadcasting whereas larger networks usually are point-to-point networks.
Which of the following is correct about the two statements?
a) Statement P and Statement Q are both True
b) Statement P and Statement Q are both False
c) Statement P is True nad Statement Q is False
d) statement P is False and Statement Q is True
====================================================
35 Consider the following statements:
Q) larger networks usually are point-to-point networks.
Which of the following is correct about the two statements ?
a) Statement P and Statement Q are both True
b) Statement P and Statement Q are both False
c) Statement P is True nad Statement Q is False
d) statement P is False and Statement Q is True
====================================================
36 Problems which dictate that the minimum elevation angle of the earth station's antenna be somewhat greater than 0 degrees are _______________ .
a) buildings, trees, atmospheric attenuation, electrical noise
b) trees, atmoshperic attenuation, transmission towers, magnetic forces
c) transmission towers, earths magnetic forces, moisture, distance
d) trees, transmission towers, earths magnetic forces, radio activity
====================================================
37 Fiber optic communication system uses:
a Simplex transmission
b half-duplex
c full-duplex
d None of the above
====================================================
38 Complex routing strategies can be, and are, often used in systems such as _________, _____, or _______, which are sometimes used as underlying technologies to support IP networks.
a) MPLS, ATM or Frame Relay
b) CTLNS, ATM or Slot
c) ATM, PDTN or Slot
d) LAN, ATM, or Frame Relay
====================================================
                                              *THE END*
====================================================
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