PUNJAB PUBLIC SERVICE COMMISSION
COMBINED COMPETITIVE EXAMINATION
COMBINED COMPETITIVE EXAMINATION
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC.
PROVINCIAL MANAGEMENT SERVICE, ETC.
COMPUTER SCIENCE (OPTIONAL) PAPER-I
TIME ALLOWED: 3 HOURS MAXIMUM MARKS: 100
TIME ALLOWED: 3 HOURS MAXIMUM MARKS: 100
Note: Attempt FIVE questions, select at least TWO Questions from each section. Each Question carries equal marks.
SECTION-A
Q.1: Explain the basic Machine Organization of Computer System. Briefly explain the Von Neumann Computer Architecture.
Q.2: Give the overview of Software Engineering and Information Technology. Why the knowledge of Computer Science is essential in this modern age?
Q.3: Give the fundamentals of Programming Solving Techniques. Discuss about the problem analyzing and designing solution.
Q.4: How you deal with Data type, Functions, Arrays and file record in program algorithm.
SECTION-B
Q.5: What are analog and digital transmission? Give the difference between synchronous and asynchronous transmission.
Q.6: What is 051 Model? Give the function of each layer of OSI Model.
Q.7: Briefly explain about TCP/IP.
Q.8: Design and implement a simplified combinational logic circuit for the following truth table of tree inputs: A, B and C and the four outputs w, x, y and z.
| A | B | C | w | x | Y | z |
| 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| 0 | 1 | 0 | 1 | 1 | 1 | |
| 0 | 1 | 1 | 0 | 0 | 1 | 1 |
| 1 | 0 | 0 | 1 | 1 | 1 | 1 |
| 1 | 0 | 1 | 0 | 1 | 0 | 0 |
| 1 | 1 | 0 | 1 | 0 | 0 | 1 |
| 1 | 1 | 1 | 0 | 1 | 0 | 0 |
