MODEL QUESTION SET 4
1. Answer the following questions.
a) What do you mean by communication
media? Give any two examples of unguided media.
Ans: The
channels by which the data is transmitted from sender to reciever in a network
is called communication media. The two examples of unguided media are Satelite,
Bluetooth
b) What is a backup? Why is backup vital
to computer secuirity system.
Ans: To
create the duplicate copies/extra copies of the data/ information/file/software
for the future use is called backup. The backup is the measures to protect the
software from being lost. If we create the backup of the software than we can
get it easily even after any damage so it is very vital to create the backup.
c) Enumerate four symptoms of computer
virus?
The four
symptoms of computer virus are
1.
Computer will be hang.
2.
Unneccessary messages or errors.
3. The
file size is reduced automatically.
4.
Computer programs will not respond properly or take more time to open or load.
d) "Video game is incomplete in the
absence of multimedia technology." Explain with reason.
Ans:
Video game is incomplete in the absense of multimedia technology. multimedia
means the use of graphics, text, audio, video or anmination to present the
information to the users. hence without multimedia components it is impossible
to play the video game. Because video game uses all the components of the
multimedia so it is impossible for video game without multimedia.
e) What is cyber law? Write any two
ethical values for computer operators.
Ans: The
laws to control or minimize the computer crime in the digital world are called
cyber law. The two ethical values for computer opreations are
1.
Should not steal the other computer's data or information.
3.
Should not harrash the people by using internet or any electronic means.
2. .
a) Convert as indicated:
i)
(101001)2
into hexadecimal ii)
(1974AD)16 into Octal
b) Perform binary calculation i)
100101001÷1011 ii) 1100011x1001
3. Match the following:
Group
'A' Group 'B'
a) Duplex b) Connects to the outer network
b) Geteway d) Unbounded
c) SPX/IPX a) Two-way communication
d) e-commerce c) protocol
4. Select the correct answer:
a) Software associated with multimedia
technology is ………
a. QBASIC b.
Adobe Reader c. Window 7 d. Adobe Flash
b) When was cyber law introduced in
Nepal?
a. 2061 BS b.
2062BS c. 2060BS d. 2059BS
c) Defragmentation is the process of
……………………
a. Formatting the disk
b. Relocation of the disk
c. Relocation of the files of the disk
d. Formatting the files
d) Chose the odd one:
a. Bridge b. Router c.
switch d. modem
5. Give the appropriate technical terms
of the followoing:
a. Rules and format to accept and
transfer data in computer network. Network Protocol
b. Moral rules to be following by
computer and other professional. Cyber Ethics
c. Making an extra copy of data and
software. Backup
d. A virus that corrupts system files of
operating system. System infector
6. Write the full forms:
a. DNS-Domain Name Server
b. ADSL-Asymetric Digital Subscribe Line
c. GBPS-Giga Byte Per Second
d. PDF-Portable Document Format
7. Answer the followings questions:
a. Differentiate between Database and
DBMS. Write any two examoles of DBMS software.
Ans:
Database is the collection of logical related Data. Eg is 1, ty,dfds45,56tt Whereas
DBMS is a software which is used to manage the database digitally. eg are
MSAccess, Dbase
b. What is the role of query in DBMS?
List the different types of query.
Ans: The
query is an object of DBMS and used to extract the records from a table or tables
according to the given condition or criteria. The different types of queries
are
1.
Select Query
3.
Action Query
Delete
and Update are the action queries
4. Make
Table Query
c. list any two major differences
between forms and reports.
The main
two differences between form and reports are as follows
1. Form
is the attractive look of a table to store, modify or delete the records
whereas the report is used to get records in the printed format.
2. Form
is used to perform the activities like to add, delete, modify, the records
whereas reports can show the records in hardcopy output format only.
8. Selected the correct answer:
a. Record of the table is also called
…………………………
i.
Tuple ii. Entity iii. Atteibute iv.
Field
b. ………………… is not a field size of yes/No
data type is …………….
i.
Required
ii. index iii. Format iv.
Search
c. The field size of Yes/No data type is
………………..
i.
1 Bytes ii. 1 Nibble iii. 1 Word iv. None of them
d. …………………….. Is/are DBMS (s). [Choose
all that apply]
i.
Ms-
Excel ii. Ms-SQL Server iii. Oracle iv. Foxpro
9. Match the following:
Group A Group B
i.
Query
iv. Printed format
ii.
Form
iii. Stores data
iii.
Table
ii. Allows view,
edit, input data
iv.
Report Data redundancy
i .
Extracts selected record for view
10. Answer the following questions:
a. Differentiate between User- defined
functions and sub- Programs in QBASIC.
Ans:User
define functions are the set of function define and created by programmer to
perform a specific task.
Sub
programs are the small program or modules in the modular programing to perform
specfic task using sub…end sub statement.
b. List any two data type used in C
language.
Ans: int
and float ar the two data types used in C language.
c. Write the function of following
statements:
i.
LINE
INPUT #- To extract a single record from a data file and store in a string
variable.
ii.
PRINT
# To print the record from a data file
11. Debug the given program:
REM To count the number of characters
of a string
DECLARE FUNCTION char (a$)
CLS
INPUT : Enter any string"; a
ch = char (a$)
PRINT "Total number of Character
is "; a$
END
===================================
FUNCTION char (a$)
FOR X = 1 TOLEN (a$)
C = X+1
NEXT X
C= char
END FUNCTION
The correct program is
REM To count the number of characters
of a string
DECLARE FUNCTION char (a$)
CLS
INPUT "Enter any string"; a$
ch = char (a$)
PRINT "Total number of Character
is "; ch
END
===================================
FUNCTION char (a$)
FOR X = 1 TO LEN (a$)
C = C+1
NEXT X
char=C
END FUNCTION
12. Write the output of the following
program:
DECLARE SUB sum (A)
A = 2
CALL sum (A)
END
==================================
SUB sum (A)
WHILE A <=20
IF
A MOD 4 = 0 THEN
S=
S+A
END
IF
A
= A+1
WEBD
PRINT S
END SUB
The output of the program is 60
13. Read the given program and answer the
given question:
DECLARE sub check ( )
CLS
CALL check
END
SUB check
c$ = "APPLE"
c=1
DO
b$
= MID$ (c$,c,1)
d$
= d$ + b$
c
= c+1
LOOP WHILE
c<=5
PRINT d$
END SUB
a. what will be the output of the above
prohram?
i.
LEPPA
ii. ELAPP iii. ELPAP iv.
APPLE
b. What will be the output of the above
program if the line LOOP WHILE c<=5 is replaced with LOOP UNTIL c>=5?
The
output of the program will be same as APPLE
14. a. write a program to generate the
series using a SUB procedure. 5 10 20 35 55 810 110 … … up to 10th
terms.
b. Write a program that asks any number
and calculates its factorial using a FUNCTION procedure.
DECLARE
FUNCTION FACT(A)
CLS
INPUT
"ENTER A NUMBER";A
PRINT
FACT(A)
END
FUNCTION
FACT(A)
F=1
FOR I=1
TO A
F=F*A
NEXT I
FACT=F
END
FUNCTION
c. A Sequential data file "pass.
dat" has several records having fields student's name and marks in
English, Math and computer. Write a program that reads all the records and
displays only those records and displays only those records whose name starts
with 'A' and also counts the total number of records stored in the file.
OPEN
"PASS.DAT" FOR INPUT AS #1
WHILE
NOT EOF(1)
INPUT
#1, N$,E,M,C
C=C+1
IF
LEFT$(N$,1)="A" THEN
PRINT
N$,E,M,C
ENDIF
WEND
PRINT
"TOTAL NUMBER OF RECORDS";C
CLOSE #1
END
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