SEE 2080 (2024)
RE-3031
Group 'A'
Answer the following questions in one
sentence:
What is unguided media?
Unguided
communication is a communication channel in which data and information
transferred between two devices without using wire or cable.
What is the business done through the
mobile?
M-Commerce
Which data type is used to store date of
birth in MS-Access?
Date/Time
Write any two elements of database.
Field
and Record
What is modular programming?
Modular
programming is a technique used to divide our program into many small logical,
manageable and functional modules or blocks
Write any two features of C- language.
C
is a Structured Programming Language. which break down a program in several
small modules and makes the programmer easier to manage and debug the code.
C
combines elements of a high level language with some features of assembler
which helps to manipulates memory address.
Write appropriate technical term for the
following:
A
secret group of characters used to protect computer system from unauthorized
users. Password
An
artificial environment created by a computer system that appears real. Virtual reality
Write the full form of the following
(i)
URL – Uniform Resource Locator
ii)
STP – Shielded Twisted Pair Cable
Answer the following questions:
Define network topology. Sketch a
drawing of star topology.
Network
topology is the inter-connected pattern of network components.
Write any four commandments of computer
ethics.
·
Do not use a computer to publish fake information.
·
Do not search the file or record of other people.
·
Do not destroy or
delete the records of other people.
·
Do
not use a computer to steal someone's privacy.
What are the computer security threats?
Mention any two measures to protect from security threats.
Computer
security threat is a risk which can potentially harm computer systems and
organization.
Any
two measures to protect from security threats are:
Firewalls
Cryptography
What is E-commerce? List any two
E-commerce companies in Nepal.
E-Commerce
refers to electronic transactions such as buying, selling and exchanging of
goods, services and information over computer communication network such as the
Internet.
Any
two E-commerce companies in Nepal are sastodeal and daraz
Define Artificial Intelligence with
examples.
AI
is an emerging branch in computer science, which interprets the means and
method of making computers think like human beings.
Examples
are self driving cars and speech recognition (like Siri, Microsoft Cortana,
List any four features of MS-Access.
a)
It
provides the flexible ways to add, edit, delete and display the related data.
b)
Queries
help to view, change and analyse the data indifferent ways.
c)
Forms
are used for viewing and editing the information.
d)
Reports
are used for summarizing and printing the data.
What is Primary Key? Give any two
benefits of it.
A
primary key is a field or combination of fields in a table that uniquely
identifies each record, and is used to establish relationships between tables
and enforce data integrity.
It sets the relationship between tables.
It reduces and controls duplication of record
in a table
Give the differences between the Select
Query and Action Query.
Select Query |
Action Query |
Select query is simply
used to select and display the relevant data from the database. |
An action query is a
query that makes changes to or removes many records in just one operation. |
It does not make
change to database. |
It makes change to
database. |
A query does not save
data; rather, it displays information from tables. |
Action query allows to
preview the query results before performing it, which is a nice feature. |
A select query is a
database item that presents information in Datasheet view. |
Multiple records can
be added, updated, or deleted simultaneously using action queries. |
Identify a record and field from the
following table structure:
Symbol
No. |
Name |
Marks |
00100202S |
Aarambha
Shrestha |
91 |
00100203T |
Suhisha
Rayamajhi |
99 |
Record
=
00100202S |
Aarambha
Shrestha |
91 |
00100203T |
Suhisha
Rayamajhi |
99 |
Field
= Symbol No. , Name and Marks
Write down the output of the given
program and show them in dry run table:
DECLARE
FUNCTION SQN (N)
CLS
S=0
FOR
L=1 TO 3
READ
NUM
S=S+SQN
(NUM)
NEXT
L
PRINT
"Sum of square"; S
DATA
1, 4, 5
END
FUNCTION
SQN (N)
SQN
= N^2
END
FUNCTION
S |
L=1
TO 3 |
Read
Num |
S=S+SQN(NUM) |
SQN=N^2 |
|
|
|
0 |
1
TO 3 yes |
1 |
0+1=1 |
1^2=1 |
|
|
|
|
2
TO 3 yes |
4 |
1+16=17 |
4^2=16 |
|
|
|
|
3
TO 3 yes |
5 |
17+25=42 |
5^2=25 |
|
|
|
|
4
TO 3 No Loop
Exits |
|
|
|
|
|
|
The output of the program is :
Sum
of square 42
Re-Write
the given program after correcting the bugs:
DECLARE
SUB Square (A)
REM
to print square of a input number
CLS
GET
"Enter a number"; N
Square
(N)
END
SUB
Square (A)
Sq
= A^ 4
Display
"Square of a number is "; Sq
End Sub
Debugged Program
DECLARE
SUB Square (A)
REM
to print square of a input number
CLS
INPUT "Enter a
number"; N
CALL Square (N)
END
SUB
Square (A)
Sq
= A^ 2
PRINT "Square of a number is "; Sq
End Sub
Study the following program and answer
the given questions:
DECLARE
FUNCTION Count (W$)
INPUT
"Enter a word"; R$
C
= Count (R$)
PRINT
C
END
FUNCTION
Count (W$)
FOR
L = 1 TO LEN (W$)
Ch$MID$
(W$, L, 1)
IF UCASES (Ch$) = "K" THEN
N=N+1
END
IF
NEXT
L
Count = N
END
FUNCTION
List any two library functions used in
the above program.
UCASE$(
) and MID$( )
Write the use of variable 'C' in line 3
[i.e. C = Count (R$)] given in the above program.
The
use of variable ‘C’ in line 3 [i.e. C =
Count (R$)] given in the above program is to store the value returned by the
function count( ).
(Group 'C'
(Convert/Calculate as per the
instruction):
1)
i) (ABC)16(?)8
Convert
each hex digit to 4 binary digits (see conversion table below):
ABC
=
A B C
=
1010 1011 1100
=
101010111100
Convert
every 3 binary digits (from bit0) to octal digit (see conversion table below):
101010111100
=
101 010 111 100
=
5 2 7 4
=
5274
(ABC)16
= (5274)8
ii)
(435)10(?)2
Divide
by the base 2 to get the digits from the remainders:
Division |
Quotient |
Remainder (Digit) |
Bit # |
(435)/2 |
217 |
1 |
0 |
(217)/2 |
108 |
1 |
1 |
(108)/2 |
54 |
0 |
2 |
(54)/2 |
27 |
0 |
3 |
(27)/2 |
13 |
1 |
4 |
(13)/2 |
6 |
1 |
5 |
(6)/2 |
3 |
0 |
6 |
(3)/2 |
1 |
1 |
7 |
(1)/2 |
0 |
1 |
8 |
=
(110110011)2
435)10 = (110110011)2
iii)
(101)2x (101)2=(?)2
|
|
|
1 |
0 |
1 |
|
|
|
X |
1 |
0 |
1 |
|
|
|
|
1 |
0 |
1 |
|
|
|
0 |
0 |
0 |
X |
|
+ |
1 |
0 |
1 |
X |
X |
|
|
1 |
1 |
0 |
0 |
1 |
|
(101)2x
(101)2=(11001)2
iv)
(101101)¸(101)
|
101) |
1 |
0 |
1 |
1 |
0 |
1 |
(1001 |
|
- |
1 |
0 |
1 |
|
|
|
|
|
|
0 |
0 |
0 |
1 |
0 |
1 |
|
|
|
|
|
- |
1 |
0 |
1 |
|
|
|
|
|
|
0 |
0 |
0 |
|
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|
|
|
|
|
|
|
|
Quotient = 1001
Remainder = 0
Write a program in QBASIC that asks
length, breadth and height of room and calculate its area and volume. Create a
User Defined Function to calculate Area and Sub Program to calculate the
Volume.
[Hint: Area LxB and Volume = LxBxH]
DECLARE FUNCTION
AREA(L,B)
DECLARE SUB VOL(L,B,H)
CLS
INPUT “Enter Length”; L
INPUT “Enter Breadth”; B
INPUT “Enter Height”; H
PRINT “Area of room=”;
AREA(L,B)
CALL VOL(L,B,H)
END
FUNCTION AREA(L,B)
AREA = L * B
END FUNCTION
SUB VOL(L,B,H)
V=L*B*H
PRINT “Volume of Room=”;
V
END SUB
Employee's name, address, gender and
salary are stored in the "EMP.DAT" sequential data file. Write a
QBASIC program that displays all information about personnel whose salaries
exceed 60000.
OPEN "EMP.DAT" FOR INPUT AS #1
CLS
WHILE NOT EOF (1)
INPUT #1, N$, A$, G$, S
IF
S > 60000 THEN PRINT N$, A$, G$, S
WEND
CLOSE #1
END
Write a program in 'C' language to find
simple interest where user need to input Principle, Rate and Time.
#include<stdio.h>
#include<conio.h>
int main()
{
float p, t, r,
i;
printf("Enter
principal: ");
scanf("%f",
&p);
printf("Enter
time: ");
scanf("%f",
&t);
printf("Enter
rate: ");
scanf("%f",
&r);
i = (p*t*r)/100;
printf("Simple
Interest = %.2f", i);
return 0;
}
अथवा
(Or)
Write a program in 'C' language to
display the series with their sum. 1,2,3,4, up to 10th term.
#include
<stdio.h>
int main() {
int i,s=0;
for(i=1;i<=10;i++)
{
printf("%d ",i);
s=s+i;
}
printf("\n
Sum =%d",s);
return 0;
}
Sir tyo c programming ko int bata gryo bhney bigrinxa ho?
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Deleteprogram run ta hunx bt there will be logical error in case if user provides decimal value.. so float data type is recommended in this case
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