Guru Gobind Singh Indraprastha Vishwavidyalaya 2007 B.C.A Computer Application Linux/Unix/Windos Programming - Question Paper

Q.1 (a) discuss the subsequent commands:- (10)
(i) tail
(ii) pwd
(iii) passwd
(iv) paste
(b) Write a shell script to search a strings from a provided terminal. (5)
Q.2 (a) Why is unix more portable than other operating system? (3)
(b) discuss xlib programming model. (5)
Q.3 (a) discuss the data structures used in LINUX kernel. (7)
(b) What is System call? discuss any 4 ystem calls in linux indetail? (8)
Q4. (a) discuss the concept of paging under linux. (5)
(b) Write a script that accepts and validates a department code,and
Flashes the department name on the terminal. (10)
Q.5 (a) discuss Ext2 file system. (7)
(b) define the subsequent in brief. (8)
(a) Sychronization in kernel.
(b) Character &block devices.
Q.6 (a) explain the advantages disvantages of the particular pagetable (5)
Structure in NT.
(b) What steps must be taken by the cache manager to copy data into and out
of the cache? Positive values –Not a triangle, Two-sides equal,Three sides
equal, All unequal. Write all equivalence classes and test cases.
Q.7 (a) What is software maintenance?Why is it so costly?Also define different
Factors through which software maintenance cost can be minimized.
(b) discuss any 2 maintenance models.
Q.8 (a) Draw an object-oriented design for an Automated Teller Machine
(ATM) identified its all the functionalities.Identify all the objects,
Their attributes and their operations.State all the assumptions made.

Earning:   Approval pending.