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Friday, October 24, 2008

Question Paper of Operating Systems 2007 of MCA First Semester of Annamalai University

M.C.A. DEGREE EXAMINATION, 2007
( SECOND SEMESTER )
( PAPER - XI )

240. OPERATING SYSTEM

May

Time :
3 Hours
Maximum : 100 Marks

Answer any FIVE questions.
All questions carry equal marks. (5 × 20 = 100)

1. (a) Discuss the Round Robin scheduling in process allocation. (10)

(b) Discuss the general features of a file system. (10)

2. (a)
What is paging ? Explain the paging scheme of memory allocation in detail with suitable example. (10)

(b) What is a semaphore ? Explain the operations of semaphore mechanism using Binary and counting semaphores. (10)

3. (a) What is Deadlock ? Explain possible methods of avoiding deadlocks and discuss their merits. (10)

(b) Discuss in detail about the evolution of operating systems. (10)

4. (a) With an example, describe the term spooling. Describe how it differs from Buffering. (10)

(b) Illustrate the inter process communication facility in traditional computing machines. (10)

5. (a) Explain the concept of discrete process states and its transition. (10)

(b) Explain the various security measures related to I/O devices. (10)

6. (a) Describe any two disk seek optimization stategies. (10)

(b) Describe the operation disk of moving - head disk storage. (10)

7. Explain Demand paged memory management technique in detail. (20)

8. Write short notes on the following :

(a) Ram Disk Drives. (5)

(b) Device controllers. (5)

(c) Servers. (5)

(d) Encryption. (5)

Question Paper of Data Structures And Algorithms 2007 of MCA First Semester of Annamalai University

M.C.A. DEGREE EXAMINATION, 2007
( SECOND SEMESTER )
( PAPER - X )

230. DATA STRUCTURES AND ALGORITHMS

May

Time :
3 Hours
Maximum : 100 Marks

Answer any FIVE questions.
All questions carry equal marks. (5 × 20 = 100)

1. (a)
Write an algorithm for stack operations. (10)

(b) Explain applications of trees with suitable examples. (10)

2. (a) Explain Heap sort with suitable example. (10)

(b) Write the algorithm for quick sort and explain with an example. (10)

3. (a) Explain the Greedy Algorithms. (10)

(b) Write the Kruskal algorithm for a minimum spanning tree. (10)

4. (a) What is linear search, binary search ? Write algorithms for both and comment on the complexity. (15)

(b) Write short notes on graph coloring. (5)

5. (a) Explain Strassen's matrix multiplication. (10)

(b) Explain the travelling salesperson problem. (10)

6. (a) Explain Branch and Bound algorithm. (10)

(b) Discuss code optimization techniques. (10)

7. (a)
Discuss in detail on hashing with examples. (10)

(b) Write an algorithm that will perform an insertion and deletion of a node in a singly linked list. (10)

8. (a) Describe Np - Hard scheduling problems. (10)

(b) Describe Np - Hard code generation. (10)

Question Paper of Principals of Computer Programming And Problem Solving 2007 of MCA First Semester of Annamalai University

M.C.A. DEGREE EXAMINATION, 2007
( SECOND SEMESTER )
( PAPER - VIII )

210. PRINCIPLES OF COMPUTER PROGRAMMING AND PROBLEM SOLVING

May

Time : 3 Hours
Maximum : 100 Marks

Answer any FIVE questions.
All questions carry equal marks. (5 × 20 = 100)

1. (a) Explain the different steps in problem solving , using computers. (10)

(b) What is algorithm ? Explain with suitable example. (10)

2. (a) Explain how efficiency of an algorithm is measured. (10)

(b) Write a brief note on the data types available in PASCAL. (10)

3. (a) Write a brief note on the I/O statements available in PASCAL.(10)

(b) Write a program in Pascal to find the sum of all numbers between 1 and n using REPEAT... UNTIL loop structure.(10)

4. What are procedures in PASCAL ? How does it differ from function ? State the rules for defining and calling a procedure. (20)

5. (a) What is recursion ? Write a PASCAL program to compute the factorial of a number using recursion. (10)

(b) Write a brief note on top down program design. (10)

6. Write a PASCAL program, using files to define a record and store employee particulars and prepare the pay - roll. Assume suitable fields and conditions for preparing pay - roll. (20)

7. (a) Write a brief note on documentation.(10)

(b) Explain maintenance and programming support environment. (10)

8. (a) Discuss about exception handling. (10)

(b) What are the systematic guidelines for program ? Explain in detail. (10)

Question Paper of COBOL And Business Data Processing 2007 of MCA First Semester of Annamalai University

M.C.A. DEGREE EXAMINATION, 2007
( FIRST SEMESTER )
( PAPER - IV )
140. COBOL AND BUSINESS DATA PROCESSING

May

Time : 3 Hours
Maximum : 100 Marks

Answer any FIVE questions.
All questions carry equal marks. (5 × 20 = 100)

1. (a) Explain the necessity for four divisions of a COBOL program.

(b) What is the use of MOVE statement ? Explain MOVE CORRESPONDING clause.

2. (a) Explain all Arithmetic verbs with good number of examples.

(b) Explain the role of level numbers with examples.

3. (a) Explain :

(i) REDEFINES clause.
(ii) RENAMES clause in COBOL with examples.

(b) How tables handling is performed in COBOL programming with suitable example ?

4. (a) Discuss the different PERFORM statements with examples.

(b) Write a COBOL program to find the largest of three numbers.

5. (a) Explain the usage of ROUNDED AND ON SIZE ERROR options.

(b) Explain the use of SORT and MERGE verb in COBOL.

6. (a) What is a Report Writer ? What are the different parts of a Report ?

(b) Compare the relative files with indexed files.

7. (a) Write a COBOL program to calculate income tax as per the given norms and display the tax :
Rs. 50,000 and below - Nil
Rs. 50,000 to 75,000 - 20 %
Rs. 75,000 to 1,50,000 - 30 %.

(b) Write a COBOL program to print the number of prime numbers from the given N numbers.

8. (a) Discuss the advantages and disadvantages of COBOL is large scale organization.

(b) Describe the features and functions of mainframe COBOL.

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