Mohan Lal Sukhadia University (MLSU) 2001 COMPUTER SCIENCE - -II (File organization Techniques and File nagement ) - Question Paper

Second Year exam of the
Three Year Degree Course, 2001
(Faculty of science
COMPUTER SCIENCE
Paper-II
(File organization Techniques and File Management )
Time : three Hours
[ Maximum Marks :50]
Attempt any 5 questions,
selecting at lowest 1 ques. from every unit,
All ques. carry equal marks.

UNIT-I
1. (a) What is the use of USAGE clause in data description? discuss
giving examples.
(b) What is the difference ranging from literal and figurative constants in
COBOL?

2. every record of a file called EMP-PAY contains, among other
things, a field called EMP-CODE which shows the id of an
employee and 3 PAY,I-TAX, and DESIG.
Write a program in COBOL to obtain number of employee in every of
the subsequent 3 categories and display total pay and income tax :
clerk , supervisor and Manager.

UNIT-II
3. (a) What is the use of ROUNDED and ON SIZE fault clauses
in arithmatic verbs? discuss giving syntax and examples.
(b) discuss giving examples the verbs used for data movement.

4. Input-output to a COBOL program is normally performed using a
file. Why? What is significance of OPEN and CLOSE statements in
COBOL? elaborate the actions performed on execution of learn and
WRITE statements respectively.

UNIT-III
5. What is the purpose of RENAMES and REDEFINES clauses in
COBOL? discuss giving suitable examples.

6. XYZ University has 10 students in its ABC programme which has
10 courses. To clear this programme every students has to pass five
courses. Write a program in COBOL to store the data in memory as
table and declare the outcomes as FAILED or PASSED. (Minimum
passing marks are 40%)

UNIT-IV

7. How the direct access files are various from index files? provide the
instruction to update an indexed file. provide an example also.

8. ABC Company is a pharmaceutical company and maintains
records about its 5000 products in a master file in the subsequent
format :
Medicine code five characters
Medicine Name 50 characters
volume in stock 10 digits
Date of Expiry eight characters
It produces almost all the products everyday. The daily produce of
every medicine is stored in a transaction file.
Medicine code five characters
volume 10 digits
Write a program in COBOL to update master file from the transaction
file. Indicate the organisation of master and transaction files you
have chosen and why?

UNIT-V

9. Write a short note on modular programming.

10. discuss the MERGE feature of COBOL language giving the
complete syntax.

Earning:   Approval pending.