PABSON COMPUTER SET SOLVED
F.M: 50
Group “A” TIME:2 HR
1. Ans the following questions in one sentence: 6*1=6
(a) What is bandwidth?
Ans: Bandwidth is the maximum rate of data transfer across a given path, typically measured in bits per second (bps).
(b) What is cyber bullying?
Ans: Cyber bullying is the use of electronic communication to bully
a person, typically by sending messages of an intimidating or threatening
nature, often through social media, emails, or text messages.
(c)What is AI?
Ans: AI, or Artificial Intelligence, is the simulation of human
intelligence processes by machines, especially computer systems, which include
learning, reasoning, and self-correction.
(d) What is the storage size of memo and text data type in MS
Access?
Ans: In MS Access, the storage size of the Memo data type is up to
1 GB, and the Text data type can store up to 255 characters.
(e) What is a local variable?
Ans: A local variable is a variable that is declared within a
function or block and is accessible only within that function or block,
ensuring that its scope is limited to that specific area of the code.
(f) What is an operator in C language?
Ans: An operator in C language is a symbol that tells the compiler
to perform specific mathematical or logical functions, such as addition (+),
subtraction (-), or logical AND (&&).
2. Write appropriate technical term for the following: 2X1=2
(a) Secret group of characters which helps to protect file from
unauthorized person
Ans: Password
(b) A type of network in which every computer works as both client
and server
Ans: Peer-to-peer network
3. Write the full form of the following: 2X1=2
(a) ADSL
Ans: Asymmetric Digital Subscriber Line
(b) TCP/IP
Ans: Transmission Control Protocol/Internet ProtocoL
4. Group “B”
Answer the following
questions: 9*2=18
(a) Differentiate between LAN and WAN
|
WAN (Wide Area Network): Covers large geographical areas, such as countries or
continents. |
(Metropolitan Area
Network): Covers a metropolitan area, typically a city or a large town. |
|
Generally slower speeds and higher latency due to long distances |
Higher speeds and lower latency due to smaller coverage area. |
|
More complex due to scale and diversity of connections. |
Less complex compared to WAN. |
(b) Write any four commandments of computer ethics.
Ans: Four commandments of
computer ethics include:
1.
You should not not use a computer to
harm other people.
2.
You should not not interfere with
other people’s computer work.
3.
You should not not snoop around in
other people’s computer files.
4.
You should not not use a computer to
steal.
(c) What is e-commerce? List any two e-commerce companies
in Nepal.
Ans: E-commerce is the buying and selling of goods and services
over the internet. Two e-commerce companies in Nepal are Daraz and SastoDeal.
(d) What are the advantages of cloud computing?
Ans: Advantages of cloud computing include cost savings, as it
reduces the need for physical hardware and maintenance; scalability, allowing
businesses to easily adjust resources based on demand; and accessibility,
enabling users to access data and applications from anywhere with an internet
connection.
(e) What is VR? Mention its application areas.
Ans: VR, or Virtual Reality, is a simulated experience that can be
similar to or completely different from the real world. Its application areas
include gaming, where it provides immersive experiences; education, where it
offers interactive learning environments; and medical training, where it allows
for realistic simulations of surgical procedures.
(f) What is DBMS? Give
any two examples.
Ans: DBMS, or Database
Management System, is software designed to create, manage, and manipulate
databases, ensuring data integrity and efficient data retrieval. It supports
various operations like data insertion, updating, and querying. Examples
include MySQL, Oracle.
(g) What is primary key? List any two advantages.
Ans: A primary key is a unique identifier for a record in a
database table.
1.
Advantages include ensuring data
integrity by preventing duplicate records.
2. Enabling efficient data retrieval through indexing
(h) What is query?
Ans: In MS Access, a query is a tool used to retrieve specific data by specifying criteria. It allows users to filter, sort, and display data from one or more tables in a database.
(i) What is data sorting? Write its two advantages.
Ans: Data sorting in a database involves organizing data in a
specific order based on one or more columns (fields) within a table. This can
be done in ascending (A-Z or 0-9) or descending (Z-A or 9-0)
order. Sorting helps in easier data retrieval, searching, and reporting by
presenting data in a structured and logical sequence.
5. Write down the output of the given program : WITH DRY RUN TABLE [2]
DECLARE SUB DISPLAY(A)
A=3
CALL DISPLAY(A)
END
SUB DISPLAY(A)
FOR X = 1 TO 6
PRINT A;
IF A MOD 2 = 0 THEN
A = A / 2
ELSE
A = ( A * 3 ) + 1
END IF
NEXT X
END SUB
|
Iteration (X) |
Value of A |
Printed Value |
Calculation |
New Value of A |
|
1 |
3 |
3 |
(3 * 3) + 1 |
10 |
|
2 |
10 |
10 |
10 / 2 |
5 |
|
3 |
5 |
5 |
(5 * 3) + 1 |
16 |
|
4 |
16 |
16 |
16 / 2 |
8 |
|
5 |
8 |
8 |
8 / 2 |
4 |
|
6 |
4 |
4 |
4 / 2 |
2 |
So, the output of the program will be:
3 10 5 16 8 4
6. Re-write the given program after correcting the bugs:
REM to add more data in a sequential data file
OPEN "EMP.DAT"
FOR INPUT AS #2
DO
INPUT "ENTER NAME
"; N$
INPUT "ENTER ADDRESS
"; A$
INPUT "ENTER SALARY
"; S$
WRITE #1, N$, A$,S
INPUT "Do you want to
add more record "; M$
LOOP WHILE
UCASE$(M$)="Y"
END
AFTER DEBUGGING
REM to add more data in a sequential data file
OPEN "EMP.DAT" FOR APPEND AS #1
DO
INPUT "ENTER NAME "; N$
INPUT "ENTER ADDRESS "; A$
INPUT "ENTER SALARY ";
S
WRITE #1, N$, A$, S
INPUT "Do you want to add more record "; M$
LOOP WHILE UCASE$(M$) = "Y"
CLOSE #1
END
DECLARE FUNCTION test$(A$)
CLS
INPUT "Enter any word "; T$
PRINT test$(T$)
END
FUNCTION test$(A$)
FOR M = LEN(A$) TO 1 STEP -1
C$ = C$ + MID$(A$, M, 1)
NEXT M
test$ = C$
END FUNCTION
(a) List the formal and actual parameters used in the program given
above.
Ans: Formal parameter: A$; Actual parameter: T$
(b) List the library function used in the above program.
Ans: Library functions used: LEN, MID$, UCASE$
Group “C”
8. Convert/Calculate as per the instruction: 4*1=4
(i) (CCA)₁₆ into Binary
Ans: 110011001010
(ii) (654)₁₀ into Octal
Ans: 1216
(iii) (111011)₂ ÷ (100)₂
Ans: 1110
(iv) (10101 - 1110)₂ × (10)₂
Ans: 11110
Group “D”
9. Answer the following questions: 4*2=8
(a) Write a program in QBASIC that allows user to enter radius of a
circle. Create a user defined function to find area of circle and sub procedure
to find volume of a cylinder. Hint: [A=Ï€r², V=Ï€r²h]
Ans:
DECLARE FUNCTION AreaCircle (R)
DECLARE SUB VolumeCylinder (R, H)
INPUT "Enter radius of the circle: ", R
PRINT "Area of the circle: "; AreaCircle(R)
INPUT "Enter height of the cylinder: ", H
CALL VolumeCylinder(R, H)
END
FUNCTION AreaCircle (R)
AreaCircle = 3.14159 * R * R
END FUNCTION
SUB VolumeCylinder (R, H)
V = 3.14159 * R * R * H
PRINT "Volume of the cylinder: "; V
END SUB
(b) A sequential data file “emp.dat” contains employee’s name, address, gender and salary. Write a program to display all the information of employees whose salary is more than Rs.20,000.
Ans:
OPEN "emp.dat" FOR INPUT AS #1
DO WHILE NOT EOF(1)
INPUT #1, N$, A$, G$, S
IF S > 20000 THEN
PRINT N$, A$, G$,S
END IF
LOOP
CLOSE #1
END
10 . Write a program in C language to input any two numbers and
find greatest number.
Ans:
#include <stdio.h>
int main() {
int num1, num2;
printf("Enter two
numbers: ");
scanf("%d %d",
&num1, &num2);
if (num1 > num2)
printf("The
greatest number is %d\n", num1);
else
printf("The
greatest number is %d\n", num2);
return 0;
}
OR
Write a program in C language that asks user to enter any number
and check whether the number is odd or even
#include <stdio.h>
int main() {
int num;
printf("Enter an
integer: ");
scanf("%d",
&num);
if (num % 2 == 0)
printf("%d is
even.\n", num);
else
printf("%d is
odd.\n", num);
return 0;
}
BY MILAN
http://www.milanbaral123.blogspot.com
