Goa Board Class 12 Question Paper Mar 2018 Computer Organization and Operating System _CWSN_

2018 III 15 1000 Seat No. :

Time : 2 Hours COMPUTER ORGANIZATION AND OPERATING SYSTEM (CWSN)

Subject Code

&

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8

Total No. of Questions : 3 (Printed Pages : 3) Maximum Marks : 50

INSTRUCTIONS : i) All questions are compulsory.
ii) Figures to right indicate full marks.
iii) Write the no. of the question and sub-question clearly.
iv) Draw diagrams wherever necessary.
v) Answer to every question shall start on a fresh page.

1. A) Fill in the blanks by choosing the appropriate words from the choices : (1×10=10)
1) __________ signal has two values zero and one.
(Analog, Digital, Hybrid, Microwave)
2) ____________ network is connected with different types of cables.
(Wired, Wireless, Mesh, Private)
3) The transmission mode where signal can be transmitted in only one direction
at a time is called _____________
(Simplex, Half duplex, Full duplex, Duplex)
4) The method in which data traffic is regulated by passing a special electronic
signal is called a __________
(Transmission, Ethernet, Token ring, Mode)
5) The term used to describe the way in which computers are connected in a
network is called _____________
(Peer to Peer, Topology, Logical, Node)
6) The type of network which is used to connect computer across the globe is
called a _____________
(Value Added Network, WAN, MAN, LAN)
7) ___________ topology connects all nodes in a single communication line.
(Star, Bus, Ring, Tree)

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8) The term used for replacing paper documents with electronic documents is
called ____________
(Internet, EDI, Intranet, Client)
9) _____________ is a device that regenerate and amplifies signals to create
long distance network.
(Modem, Repeater, Hub, Switch)
10) The linux shell command to rename a file is called ____________
(mv, dir, cp, ls)
B) Pick the odd one out from the following computer terms : (1×5=5)
1) LAN, MAN, MESH
2) Client, Star, Ring
3) Computer, Domain, Workgroup
4) Baseband, Switch, Broadband
5) C shell, Multiuser, Bourne shell.
C) Match the following : (1×6=6)
1) Linear Bus a) Client server architecture
2) Dedicated server b) Motherboard
3) Printer server c) Physical topology
4) Fibre optic cable d) Heart of linux operating system
5) NIC e) Spooler
6) Kernel f) Fiber line driver
D) Answer the following in a word or phrase : (1×5=5)
1) Name the network that interconnects many computers and terminals located
within 10 kilometers of radius.
2) Name the server that serves as an electronic post office for email.
3) Which connector is used to connect coaxial cable ?
4) Name the free operating system created by linux toravalds.
5) Name a linux shell command to remove a directory.

2. Answer the following questions in one sentence each : (1×6=6)
1) Write one point of difference between LAN and WAN.
2) What is simplex node of data transmission ?

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3) What is logical topology ?
4) State one point of difference between Private Network and Public Network.
5) What is a workstation ?
6) Write one feature of Fibre Optic Cable.

3. Answer the following questions in two sentences each. (Any nine) (2×9=18)
1) Write two characteristics of computer network.
2) Briefly describe star topology.
3) State two benefits of wireless network.
4) What is metropolitan area network ?
5) What is Data Transmission ?
6) State two benefits of EDI.
7) Briefly explain the concept of Intranet.
8) State two points of difference between client server and peer to peer network.
9) What is a Cable ? Mention one difference between Baseband and Broadband
cable.
10) What is the use of a device called router on the network ?
11) Write two advantages of twisted pair cable.

_______________

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