| 1. |
(a) |
What is the purpose of
OCCURS clause in COBOL? Explain with the examples. |
|
|
How can the information stored
using Occurs clause be searched. |
|
(b) |
How can you implement string
find and replace operation in COBOL? Give one example. |
|
(c) |
What is an equivalent
construct for while loop in COBOL? Explain with an
example. |
|
(d) |
What is the need of having
different types of file organisation? Give example of |
|
|
situations where you would
like to use the different file organisations allowed in
COBOL. |
|
(e) |
What is the usage of
SYNCHRONIZED clause in COBOL? Explain with the help of an example.
What is a slack byte in this context?. |
|
(f) |
Why do you need level 77 and
level 88 entries in COBOL? Explain their advantages with the help of
examples. |
| 2. |
|
Write a program in COBOL for
an electricity supply company with the following |
|
|
requirements:
The company
maintains a master file of its customers
as
Cust_no
5 numeric
digits
Cust_name 25
characters
Previous_meter_reading
5 numeric
digits
Cust_address
50
characters
Meter_no
10 numeric digits
Every month a transaction file is created on
the basis of Meter_no
as
Meter_no
10 numeric
digits
Meter_reading
5 numeric digits
Assume that bills are produced only if
Meter reading has been taken.
From the above data monthly
bills are to be produced for the customers and master data needs to
be updated.
Take suitable file organisations for your program.
Make suitable assumptions, if any, wherever needed. |
| 3. |
|
XYZ University had two
libraries-one for staff and one for students. Both these
|
|
|
libraries maintained their
books inventory using COBOL file as
Staff_library Master
file:
Sorted on
Book_accession_no
Book_accession_no
20
characters
Author
20
charecters
Title
20 charecters
Student_library Master File
Sorted on
Book_accession_no
20
charecters
Book_accession_no
20
charecters
Author
20
charecters
Title
20
charecters
No-of_books
4 digits
The No_of_books field was not kept in Staff_library
Master as they had just one copy on the book. However, the
University merged the two libraries to create one library.
Write a program in COBOL to merge the data available on the two
files to create a single Library Master File having format same as
that of Student_library Master File. (Please note that some of
the books were available in both the libraries.) |
| 4. |
|
ABC Stores keeps its inventory
using the following file : |
|
|
ITEM_MASTER
:
item_code
5 numeric
digits
item_name
25 characters
Quantity_in_Stock 5 numeric
digits
Sorted on Item_code
It also maintains a list of
suppliers in a supplier file as :
SUPPLIER_MASTER
:
Supplier_Id
5 numeric digits
Supplier_name 25
characters
Supplier_address 50 characters
Stored on
supplier_Id
Write a program in COBOL which will update
Item_Master file on request of issue of an item. In case the
requested quantity of item is more than in the stock then the next
supplier will be issued an order to supply the item. The next
supplier is the next record, in the Supplier_Master, to the supplier
to whom last order was placed (Thus, suppliers will be given order
one by one). Please use suitable file organisations and make
suitable assumptions, if any. |
| 5. |
|
Explain the following COBOL
verbs with one example each : |
|
(a) |
REDEFINES clause |
|
(b) |
GOTO DEPENDING
verbs |
|
(c) |
ON SIZE ERROR and ROUNDED
options |
|
(d) |
RELEASE and RETURN
statements |
|
(e) |
Statements used for Move and
Group Move |
