SEE Preparation Examination-2076
PABSON Examination Board, Kaski
Subject: Optional II (Computer Science)
Marking
Scheme
|
Group-"A"
1. a)
i) It reduces the network traffic
ii)
Centralizes the network management
and security to the server.
[Assign
1+1 for correct or satisfactory answer]
b)
Ø Cheapest
Ø Fastest
Ø Supports
pictures, graphics, images
Ø Single
mail can be sent to different mail addresses.
[Assign 0.5 for each
correct point]
c)
UPS is a power protection device
that stores electricity and provides backup power automatically to the computer
when required so that data files can be saved.
Spikeguard is used to prevent
computer from sudden high voltage(spikes) because of lightning in rainy season
and control such high voltage.
[Assign 2 for correct
or satisfactory answer]
d)
Linear
|
Non-linear
|
i)
User is passive receiver of contents.
|
i)
User can interact.
|
ii)
Cannot modify the contents.
Ø Movies
|
ii)
Can modify the content.
Ø Hypermedia
|
[Assign 2 for correct or satisfactory
differences]
e)
An illegal malicious program that
destroys data, software and makes devices not usable.
Ø Creates
bad sector in the disk.
Ø Damage
executable files.
[Assign 2 marks
for correct and satisfactory answer]
2. a)
i) (235)8=
(157)10 [Assign
1 marks]
ii) (BA5)16= (101110100101)2 [Assign 1 marks]
b) i) 10010 [Assign
1 marks]
ii) Quotient = 110 [Assign 0.5 marks]
Remainder =
11 [Assign 0.5 marks]
3. a)
Power DVD player - Multimedia software
c) USENET -
Internet service
d) Intranet -
Offline service
[Assign 0.5 for each
correct answer]
4. a) iv) ALL
b) ii) Storing
files into the smallest number of contiguous regions.
c) i) MS-DOS
d) ii) WinZip
[Assign 0.5 for each
correct answer]
5. a)
Server c) Animation
b) ISP d) General purpose application Infector
[Assign 0.5 for each
correct answer]
6. a) PDF – Portable Document Format
b) MAC – Media
Access Control/ Message Authentication Code
c) IMEI –
International Mobile Equipment Identity
d) MPEG-Motion
Pictures Experts Group
[Assign 0.5 for each correct answer]
Group-"B"
7. a)
i) Allows
storing large volume of data in a small device.
ii)
Allows searching specific data
quickly.
[Assign
2 marks for each correct answer]
b) Teacher’s
name – Text
Address – Memo
Salary – Currency
Date of birth – Date and
Time.
[Assign 0.5 for each
correct answer]
c) A report is an effective way of
presenting final database in a printed format as hard copy.
– It is created to compare,
summarize and subtotal large set of data.
[Assign 2 marks for correct answer]
8. a) True c) True
b) False d) True
[Assign 0.5 for each
correct answer]
9. a) Currency – 8 bytes
b) YES/NO –
1 BIT
c) OLE –
1 GB
d) Text –
255 characters
[Assign 0.5 for each
correct answer]
Group- C (Programming)
10. a) - Each modules can be tested and debugged
independently.
-Complex programs can be divided into
smaller blocks.
[Assign 1 marks for correct answer]
b) - C is a middle level programming language
with close to both high level and low level language.
- It has variety of data types to represent different kind of data.
[Assign 0.5 for
each correct answer]
c) DIM SHARED - It is a declaration statement which
makes the variable global to an entire module of modular programming.
FILES
– Used to display a list of files from the specified directory.
11. OUTPUT
Calculated value= 61
|
[Assign 2 marks for correct output]
12. Debugged
program:
DECLARE FUNCTION CHK$(A)
CLS
INPUT “Enter any number”; A
PRINT CHK$(A)
END
FUNCTION CHK$(A)
M=A
WHILE A>O
R= A MOD 10
S= S+R^3
A= INT (A/10)
WEND
IF S=M THEN
CHK$= “Not Armstrong”
ENDIF
END FUNCTION
[Assign
0.5 for each correction]
13. a)
The result will be:
Sum = 6
|
[Assign 1 for correct answer]
b) The statement within the WHILE........WEND
will not be executed if it is changed to WHILE N=O
[Assign
1 for correct answer]
14. a) DECLARE FUNCTION Vowel (a$)
CLS
INPUT “Enter any string”; a$
PRINT Vowel (a$)
END
FUNCTION Vowel (a$)
FOR X=1
TO LEN (a$)
M$= MID$ (a$,X,1)
N$= UCASE$ (M$)
SELECT CASE N$
CASE “A”,
“E”, “I”, “O”, “U”
V= V+1
END SELECT
NEXT X
Vowel=
V
END FUNCTION
[Assign
3 marks for correct answer and 1-5 for partially correct answer]
b) DECLARE
SUB CHK (N)
CLS
INPUT “Enter
any number”;N
CALL CHK
(N)
END
SUB CHK
(N)
B=N
WHILE N< >O
R=N MOD 10
ULTA= (ULTA*10) + R
N=INT (N/10)
WEND
IF ULTA=B THEN
PRINT “Palindrome”
ELSE
PRINT “Not
Palindrome”
ENDIF
END
SUB
c) CLS
INPUT “Enter
name to search records”;N$
OPEN
“SEARCH.INF” FOR INPUT AS #1
WHILE NOT EOF (1)
INPUT
#1, NA$, A, A$, PH
IF
N$= NA$ THEN
PRINT N$, A,
A$, PH
END
IF
WEND
CLOSE
#1
END
[Assign 3 for correct
and 1.5 for partially correct answer]
The
End!!
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