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

2018 VI 12 1430 Seat No. :

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

Subject Code

V 3 1 8

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

GENERAL INSTRUCTIONS : i) All questions are compulsory.
ii) Answer to every question shall be written on a
fresh page.
iii) Figures to the right indicate full marks.
iv) Draw neat diagrams wherever necessary.
v) Write the numbers of question and sub-question clearly.

1. A) Fill in the blanks by choosing the appropriate words from the choices. [10]
1) ___________ is the topology in which each node is connected to every
other node.
a) Star b) Mesh c) Ring d) Bus
2) Data Communication System within a building or a campus is _________
a) LAN b) WAN c) MAN d) Wireless
3) ___________ networks uses unbounded media.
a) Wired b) Wireless c) Cables d) MAN
4) _________ is a collection of computers and devices connected by
communication channel that allows users to share data.
a) Network b) Arrangement c) Medium d) Cables
5) MAN is the abbreviation of _________
a) Metropolitan Area Network b) Metropolitan Application Network
c) Metropolitan Access Network d) Metropolitan Added Network
6) The physical or logical arrangement of computers on network is ________
a) Topology b) Routing
c) Networking d) Connection

V-318 -1- P.T.O.

7) _________ is the network in which data traffic is regulated by passing a
special electronic signal.
a) Bus b) True c) Ring d) Token Ring
8) The server that serves different types of files is called as _________
a) File server b) Print server
c) Mail server d) Web server
9) A device which is used to connect light signals to digital signal is
called _________
a) Hub b) Repeater c) Switch d) Fiber line driver
10) _________ command is used to display the working directory in Linux.
a) pwd b) Is c) cd d) cmp

B) Pick the odd one out from the following computer terms : [5]
1) LAN, WAN, Topology
2) Wired, Wireless, WAN
3) Dedicated, Server, Mail Server, Client
4) Coaxial, Twisted pair, Repeaters
5) Cat, Touch, rmdir.

C) Match the following : [6]
1) Data transmission BNC
2) Workstation Linux
3) Server Unshielded twisted pair
4) Twisted wire Simplex mode
5) Connectors Node
6) Bourne shell Dedicated machine

D) Answer the following in a word or phrase. [5]
1) Name the data communication mode in which transmission can take
place in both the directions simultaneously.
2) Name the type of server that allows computer workstation to interface
with one or more printers that are shared on a network.
3) Name the signal that is in the form of waves.
4) Name the component of Linux that act as a heart of Linux operating
system.
5) Name the command used to list the files in Linux.

V-318 -2-

2. Answer the following questions in one sentence each : [6]
1) What is Data transmission ?
2) State one point of difference between Analog transmission and Digital
transmission.
3) State one point of difference between wired and wireless network.
4) What is physical topology ?
5) What is domain ?
6) State one use of Repeater.

3. Answer the following questions in brief (any 9) : [18]
1) State any two characteristics of computer network.
2) State any two benefits of wired network.
3) Describe briefly Bus topology.
4) Describe briefly data transmission.
5) Describe briefly star topology.
6) Describe briefly client server architecture.
7) State two points of difference between Broadband and Baseband transmission.
8) What is a web server ? Write 2 features of Web Server ?
9) Write any 2 uses of EDI.
10) What is a repeater ? Why are they required in a network ?
11) Write any two differences between twisted pair cable and co-axial cable.
___________

V-318 -3-