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Posts Tagged ‘Mcqs Notes Chapter 1 t0 3’

ICS Examination 2015 Computer Science Short Questions , Mcqs Notes Chapter 1 t0 3

ICS  Examination 2015 Computer Science Short Questions ,  Mcqs   Notes Chapter 1 t0 3

1
DFD stands for:

Data flow diagram
Data definition diagram
Digital flow diagram
Data flow design
2
MB stands for

Mega Byte
Mega bit
Master bit
Magnetic base
3
Bit stands for:

Binary Digit
Byte digit
Base digit
Basic digit
4
How many keys in standard keyboard?

110
115
111
102
5
Which of the following methods is used in data gathering step of system analysis?

Interview
Questionnaires
Sampling
All
6
Which type of Diagram shows how information flows through a system?

Logic flow chart
Gant chart
DFD
Decision table
7
Which of the following tasks is not part of the systems analyst role?

Programming
Coordination
Communication
Planning
8
Which of the following is the first phase of SDLC?

Design
Coding
Preliminary investigation
Analysis
9
One Gigabyte is equal to:

1000kb
1024MB
1024 x 1024 MB
One million MB
10
Which of the following is an impact printer?

Dot-matrix printer
Daisy Wheel printer
Line printer
All
11
Laser printer is an example of:

Non impact
Inkjet
Impact
Dot Matrix
12
A pixcel may b displayed as:

White
Blue
Black
All
13
Which keyboard is used most commonly?

DVORK
TWRITER
SPLITTER
QWERTY
14
Another name of main memory is:

Secondary memory
Permanent memory
Primary Storage
Tape Storage
Q-2: Write short answers any TEN, each question carry 2 marks.
1. What is Information Technology?
2. What is data?
3. What are pointing devices?
4. What is track ball?
5. Define BARCODE.
6. What is System software?
7. Define VGA.
8. What is Plotter?
9. What are non impact printers?
10. Define Terminal.
11. What are basic units of data storage?
12. Who is Programmer?
13. Write difference between Track ball and Track pad.

Q-3: Write detail answers of the following questions.
1. Discuss modern scenario of information technology.
2. What is SDLC? Discuss its different phases.

A device that connect multiple network using similar or different protocol.

Router
Bridge
Gateway
None
2
DSL stand for:

Direct service Lease
Domain Super Link
Distant Service Line
Digital Subscriber Line
3
FTP stands for:

File transfer protocol
File tele program
Find tele Path
None of them
4
Data link have two separate sub-layers.

LLC and MAC
CS and MAC
Toeken and MAC
MAC and FT
5
What layer of OSI models performs data compression?

Network
Data Link
Presentation
Physical
6
Which of the following is not a network communication device?

Router
Hub
LAN
NIC
7
FDDI is a:

Star network
Ring Network
Mesh Network
Bus
8
Which is the most common LAN topoly for microcomputer LAN?

Bus
Band
Star
Ring
9
A LAN is a combination of

Network adaptor cards
LAN cable
LAN application software
ALL
10
What type of network is the internet?

LAN
MAN
WAN
None
11
Two or more than two computer/Communication device connect together, know as a:

Internet
MAN
WAN
Network
12
Each computer on a network is called a:

BUS
Node
Terminator
None
13
A building network is a type of:

WAN
MAN
LAN
Internet
14
NIC stands for

Network interface card
Network Identity Card
Network Internal Card
Noe

Q-2: Write short answers any TEN, each question carry 2 marks.
1. What is a server Computer?
2. What is a terminal computer?
3. Define information network.
4. What you know about workgroup computing?
5. Define two types of Network standards.
6. What is network topology?
7. How many types of a network topologies, write their names.
8. Define Internet.
9. Write 5 advantages of LAN.
10. Write a short note on TCP/IP.

Q-3: Write detail answers of the following questions. 1. What is an OSI Model? Define Session layer, Data link layer and Physical layer in detail.
2. Explain different components of LAN in detail.
1
Unicode is a

16 bit code
32 bit code
64 bit code
128 bit code
2
Television and radio broadcast are example of:

Full duplex
Half duplex
Simplex
Asynchronous
3
How many characteres can unicode represents

150000 Characters
10000 Characters
65536 Characters
None
4
Which transmission allows data to travel in both direction but only one direction at a time:

Simplex
Half duplex
Full duplex
Reverse duplex
5
Full communication is made possible by devices called:

Full duplex
Multiplexer
Hulf duplex
None
6
Which of the following devices uses parallel transmission:

Printer
Keyboard
Mouse
None
7
Analog signal measure in :

Digits
Hertz
Volt
Wats
8
The communication channel can be devided into :

2 types
4 types
7 types
8 types
9
The dia meter of Fiber Optical cable is:

62.5 cm
62.5 micrones
62.5 m
62.5 mm
10
Which of the following can severally effect the quality of satellite transmission:

Moon
Mountains
Light rays
Bad weather
11
BCD code is _______ ;

4
8
16
32
12
BCD stands for

Byte coded decimal
Base coded decimal
Binary coded decimal
Bidirectional coded decimal
13
Which of the following is not common communication code:

Unicode
Bilateral code
EBDIC
ASCII
14
Which of the following feature is provided with a modem:

Speeds
Self testing
Transmission rate
All of these

Q-2: Write short answers any TEN, each question carry 2 marks.
i. What are data communication?
ii. List out different elements of data communication?
iii. Define the term encoder decoder?
iv. What are two characteristics of analog signal?
v. How is data represented in computer?
vi. Define transmission modes?
vii. What is difference between simplex and half duplex mode?
viii. What is serial data transmission?
ix. Describe Asynchronous data transmission?
x. What is coaxial cable?
xi. Write do you know about microwave transmission?
xii. What is communication satellite?
xiii. What do you know about external modem?
xiv. What is internal modem?
Q-3: Write detail answers of the following questions.
1. What are data transmission modes? Explain.
2. Discuss the different type of data transmission?

3. What is data communication? What are the basic components of communication network?

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