SLC COMPUTER 2065 QUESTION

SLC COMPUTER 2065 QUESTION

SLC Examination-2065(2009)

            Computer Fundamental (22 marks)

1. Answer the following questions:

a. Define star topology with figure.

b. List out any four services of internet.

c. Define computer ethics.

d. Write down two measures of each to protect computer hardware and software.

e. What is anti-virus? Write down any two examples of anti-virus software.

2.a. Convert as instructed:

  i.) (228)₈ into decimal                       ii.) (CA3)₁₆ into binary

b. Perform binary calculation:

 i.) 11*11                                             ii.) Divide 1110 by 11

3. Match the following:
Group A                      Group B
a) Server                      i) HTTP
b) Node                       ii) Work station
c) Protocol                   iii) Main computer
d) Coaxial cable          iv)Repeater
                                    v) Communication Media

4. Select the best answer:
a)Which refers to the communication media?
i) UTP cable    ii) Fiber optic cable     iii) Satellite      iv) All of the above

b) Which is the correct Email ID?
i) Yahoo@ramesh       ii) Ramesh@yahoo.com          iii) @ramesh.yahoo.com         iv) None of the above

c) Route of virus transmission:
i) Pen drive      ii) Microphone             iii) Printer                    iv) Mouse

d) Main component of multimedia is:
i) Floppy disk              ii) Floppy drive                       iii) Sound card                        iv) Magnetic tape

5) Give appropriate technical terms:
a) A computer network limited within a room.
b) A program that destroys other program
c) Law regarding internet (or Legal issues of Cyber Space).
d) Buying and selling products and services online.

6. Write the full forms:

a) UPS             b) TCP             c) STP             d) NIC           

            Group B-  Database (10 marks)

7. Answer the following question:
a) What is database?

b) While designing table structure which data types are suitable to store information about teacher’s name, address, salary, and date of birth.

c) Write down any two advantages of Query.

8. Select the best answer:
a) …………… is not the data type of MS-Access.
i) Number        ii) Text             iii) Memo         iv) Form

b) …………… is the DBMS.
i) Fox-Pro        ii) MS-Excel                iii) Lotus-123  iv) All of the above

           
c) Primary key does not accept ……………
i) Text              ii) Number       iii) Null value  iv) None of the above

           
d) In MS-Access we enter data using ………….
i) Form                        ii) Table           iii) Report        iv) Both (i) &(ii)

           
9. Match the following:
Group A                      Group B
a) Query                      i)Printed format
b) Form                       ii) Stored data
c) Table                       iii) Allows view, edit, input data
d) Report                     iv) Extracts the selected record for view
                                    v) DBMS
                                               

Group C-Programming (18 marks)

10. a) Write down one difference between function and sub procedure.

b) List any two data type used in C language.

c) Write down the functions of:
            i) RMDIR      

            ii) NAME

11.Write the output of:
DECLARE SUB RESULT(A$)
A$ = "EDUCATION"
CALL RESULT(A$)                         
END

SUB RESULT (A$)
FOR C = 1 TO LEN(A$) STEP 2
 X$ = MID$(A$, C, 1)
PRINT X$
NEXT C
END SUB

12. Re-write the following program after correcting:
DECLARE FUNCTION SUM(a,b)
REM Program to sum given two numbers
Input ”Enter first number”; x
Input “Enter second number; y
PRINT SUM(a,b)
END

FUNCTION SUM(x,y)
SUM=a+b
END

13. Study the following program and answer the following question:
DECLARE FUNCTION xyz(N)
FOR I = 1 TO 5
READ N
Z=xyz(N)
S=S+Z
NEXT I
PRINT S
DATA 10,13,15,4,6
END

FUNCTION xyz(N)
IF N MOD 2=0 THEN xyz=N
END FUNCTION
a) What is the name of the function used in the above program?

b) How many times the function will be called in the above program?

14. a) Write a program to store records regarding the information of Book number, Book’s name and Writer’s name in a sequential data file called “Library.dat”.

b) Using FUNCTION……END FUNCTION, write a program to calculate distance travelled by a body. (Hint: s=ut+ (1/2) at²)

           

c) Using SUB……….END sub, write a program to print the following serial 9, 7, 5,……1