SEE Question Model Set
Subject:
Computer
Science
Full Marks: 50
Time: 1:30:00 hrs
Attempt ALL the questions.
Group –A [10×1=10]
Group- A [Very Short Answer Question: 10×1=10]
1. Answer the following questions in one sentence. 6×1=6
a) List any two network connectivity devices.
b) Which software is used to remove viruses from computer
systems?
c) Name any two modes of electronic payments.
d) Define search engine.
e) Define relationship.
f) What do you mean by modular programming?
2. Write appropriate technical terms for the following. 2×1=2
a) Set of moral principles or code of conduct that
regular use of computers.
b) The process of identifying an individual is usually based
on a username and password.
3. Write the full form of the following. 2×1=2
a) UTP b) GPS
Group- B [Short Answer Question: 12×2=24]
4. Answer
the following questions. 9×2=18
a) Define
network topology? Write its types.
b) What is
backup? Why is backup vital to computer security systems?
c) Define
cloud computing? List any two services of it.
d) List any
two opportunities that are threats in social media.
e)
Differentiate between peer-to-peer network client-server network architecture.
f) Define
database. Write any two examples of the database.
g) What is
Ms-Access? List any two features of Ms-Access.
h)
Differentiate between select query and action query.
i) What do
you mean by field property? Write any two names of field property?
5. Write
down the output of the given program. Show with a dry run in the table. 2
DECLARE SUB
series(n)
CLS
FOR I = 1 TO
5
READ n
CALL
series(n)
NEXT i
DATA 125,
1000,216,8,27
END
SUB series(n)
PRINT n^1/3+1
END SUB
6.
Re-write the given program after correcting the bugs. 2
REM to count
total number of word existing in a sentence input by user
DECLARE
FUNCTION wordcount(w$)
CLS
LINE INPUT
"Enter a sentence";s$
c=wordcount(w$)
PRINT "Total
number of word existing in a sentence";c
END
FUNCTION
wordcount$(w$)
FOR c=
LEN(w$) to 1 STEP -1
ch$=MID$(s$,c,1)
IF
ch$=SPACE$(1) THEN cnt=cnt+1
NEXT c
cnt=wordcount
END FUNCTION
7. Study the following program and answer the
given questions. 2
OPEN
"busrider.txt" FOR INPUT AS #1
OPEN
"temp.dat" FOR OUTPT As #2
CLS
WHILE NOT
EOF(1)
INPUT #1,
name$,class,buscode,busstop$
IF UCASE$(busstop$)
<>UCASE$("KATHMANDU") THEN
WRITE #2,
name$,class,buscode,bsstop$
PRINT name$,
class, buscode,bsstop$
ENDIF
WEND
CLOSE #1,#2
KILL
"busrider.txt"
NAME
"temp.txt" AS "busrider.txt"
END
Questions:
a) What is
the main objective of the program given above?
b) Do you get
any problem in above program if "KILL" statement is removed? Give
reason.
Group –C [Long Answer Questions 4×4=16]
8. Convert / calculate as per the instruction. 4×1=4
a) (542)10 into Binary b) (CAD59)16 into octal
c) (11010)2 × (1101)2 – (100101)2 d) 1110111÷11011
9. a) Write a program in qbasic that asks radius and
calculates the area of the circle and circumference of a circle. Create a user define a function to calculate the circumference of circle and a subprogram to calculate the area
of circle. [Hint: COC=2Ï€r and AOC=Ï€r2] 4
b) A sequential data file "person.txt" contains
information such as name, address and DOB of 20 people. Write a program to
display only those records whose age is below 18 and address is
"Lalitpur" QBasic4
10. Write a program in C language that asks a number
check whether input number is divisible by 5 and 7 or not. 4
OR
Write a
program in C language to display the series with their sum: 100 95 90 85
….upto 10th term.
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