Examination Paper: Operating System
IIBM Institute of Business Management 1
IIBM Institute of Business Management
Semester-I Examination Paper MM.100
Operating System
Section A: Objective Type (20 marks)
•?This section consists of Multiple Choice Questions & Fill in the blanks / True & False.
•?Answer all the questions.
•?Each Question carries 1 mark.
Multiple Choices:
1. Logical view is
a. Abstract view of an entity
b. Full view of entity
c. Complete software
d. Complete program
2. Multiprocessor computer system provides
a. Slow performance by serving several processes simultaneously
b. High performance by serving several processes simultaneously
c. High performance by serving one process
d. None of the above
3. Process is
a. Language of programme
b. Name of a computer software
c. An execution of programme
d. None of the above
4. Program counter (PC) register contains
a. Address of the next instruction to be executed by the C.P.U.
b. Address of the next instruction to be executed by the monitor
c. Both (a) & (b)
d. None of the above
5. Remote procedure call (RPC) is used by an application execute
a. To execute a procedure in the system
b. To execute a procedure in another compute in the distributed system
c. Name of a software
d. None of the above
6. File control block (FCB) contain all information concerning
a. A file processing activity
b. Execution activity
c. Both (a) & (b)
d. None of the above
Examination Paper: Operating System
IIBM Institute of Business Management 2
7. A distributed transaction is also called
a. Single-site transaction
b. Two –site transaction
c. Multi-site transaction
d. Both (a) & (b)
8. Streaming tape can store record
a. Without a break irrespective of its size
b. With a break in size of record
c. Of size 10 kb
d. Both (a) & (c)
9. Non-uniform memory architecture system consists of number of nodes and each node consists
a. Monitor
b. Register
c. Both (a) & (b)
d. 1 or more C.P.Us
10. Receiver initiated algorithm checks whether a node is a
a. Initiator node
b. Receiver node
c. Both (a) & (b)
d. None of the above
True & False:
1. All CPUs in the system can access the entire memory in an identical manner.
2. The Processors of multiprocessors are divides into processor sets.
3. High reliability in distributed file systems can be ensure through sharing semantics.
4. A cached directory is a copy of directory that exists at a primary site.
5. A cluster of nodes is a section of the distributed system that contains sufficient hardware and
software resources.
6. Remote differential compression (RDC) is a protocol for file replication that reduces the file
wherence traffic between servers.
7. Lock variable is used to lock in a computer system.
8. File system integrity implies correctness and consistency of control data and operations of the file
system.
9. A mathematical model consists of 3 components model of the server.
10. The scheduling environment is characterized by two parameters the arrival pattern of requests and
their service pattern.
Examination Paper: Operating System
IIBM Institute of Business Management 3
END OF SECTION A
Section B: Short Questions (20 marks)
•?This section consists of short questions.
•?Answer should be in 5 lines.
•?Each Question carries 5 marks.
•?Attempt any four questions.
1. Write short note on Memory Protection?
2. What do you understand by Non-contiguous memory allocation?
3. What is Sequential organization?
4. What is direct organization?
5. What do you understand by Virtual Memory?
END OF SECTION B
Section C: Long Questions (20 marks)
•?This section consists of Long Questions.(word limit 150-200 words)
•?Each question carries 10 marks.
•?Attempt any two questions.
1. Justify the following statement “Thrashing can arise in a paged virtual memory system using
a working set memory allocator; however, it cannot last for long.”
2. Write a short note on actions to be performed during a file deletion operation while it links
exist in the directory structure?
3. An update file is one that is read and modified during processing; a process heads a record
modifies it in memory and writes it back while processing the file.
(a) Which I/O device is best suited for recording an update file?
(b) Is buffering and blocking of records useful for an update file?
END OF SECTION C
Examination Paper: Operating System
IIBM Institute of Business Management 4
Section D: Applied Theory (40 marks)
•?This section consists of applied theory questions.
•?Each question carries 20 marks.
•?Attempt any two questions.
•?Detailed information should form the part of your answer (word limit 200-250 words).
1. Explain how starvation is avoided is the UNIX and Window system?
2. (a) Does swapping improve / degrade efficiency of system utilization?
(b) Does swapping increase the effective degree of multiprogramming?
(c) Can swapping be used in a multiprogramming system? Clearly justify your answers?
3. Discuss influence of disk scheduling algorithms on effectiveness of I/O buffering?
4. Explore the possibility of implementing the blocking and non-blocking protocols using
monitors. What are the difficulties in the implementation?
END OF SECTION D
-----------------------------------------------------------------***----------------------------------------------------------
S-1-221110
IIBM Institute of Business Management 1
IIBM Institute of Business Management
Semester-I Examination Paper MM.100
Operating System
Section A: Objective Type (20 marks)
•?This section consists of Multiple Choice Questions & Fill in the blanks / True & False.
•?Answer all the questions.
•?Each Question carries 1 mark.
Multiple Choices:
1. Logical view is
a. Abstract view of an entity
b. Full view of entity
c. Complete software
d. Complete program
2. Multiprocessor computer system provides
a. Slow performance by serving several processes simultaneously
b. High performance by serving several processes simultaneously
c. High performance by serving one process
d. None of the above
3. Process is
a. Language of programme
b. Name of a computer software
c. An execution of programme
d. None of the above
4. Program counter (PC) register contains
a. Address of the next instruction to be executed by the C.P.U.
b. Address of the next instruction to be executed by the monitor
c. Both (a) & (b)
d. None of the above
5. Remote procedure call (RPC) is used by an application execute
a. To execute a procedure in the system
b. To execute a procedure in another compute in the distributed system
c. Name of a software
d. None of the above
6. File control block (FCB) contain all information concerning
a. A file processing activity
b. Execution activity
c. Both (a) & (b)
d. None of the above
Examination Paper: Operating System
IIBM Institute of Business Management 2
7. A distributed transaction is also called
a. Single-site transaction
b. Two –site transaction
c. Multi-site transaction
d. Both (a) & (b)
8. Streaming tape can store record
a. Without a break irrespective of its size
b. With a break in size of record
c. Of size 10 kb
d. Both (a) & (c)
9. Non-uniform memory architecture system consists of number of nodes and each node consists
a. Monitor
b. Register
c. Both (a) & (b)
d. 1 or more C.P.Us
10. Receiver initiated algorithm checks whether a node is a
a. Initiator node
b. Receiver node
c. Both (a) & (b)
d. None of the above
True & False:
1. All CPUs in the system can access the entire memory in an identical manner.
2. The Processors of multiprocessors are divides into processor sets.
3. High reliability in distributed file systems can be ensure through sharing semantics.
4. A cached directory is a copy of directory that exists at a primary site.
5. A cluster of nodes is a section of the distributed system that contains sufficient hardware and
software resources.
6. Remote differential compression (RDC) is a protocol for file replication that reduces the file
wherence traffic between servers.
7. Lock variable is used to lock in a computer system.
8. File system integrity implies correctness and consistency of control data and operations of the file
system.
9. A mathematical model consists of 3 components model of the server.
10. The scheduling environment is characterized by two parameters the arrival pattern of requests and
their service pattern.
Examination Paper: Operating System
IIBM Institute of Business Management 3
END OF SECTION A
Section B: Short Questions (20 marks)
•?This section consists of short questions.
•?Answer should be in 5 lines.
•?Each Question carries 5 marks.
•?Attempt any four questions.
1. Write short note on Memory Protection?
2. What do you understand by Non-contiguous memory allocation?
3. What is Sequential organization?
4. What is direct organization?
5. What do you understand by Virtual Memory?
END OF SECTION B
Section C: Long Questions (20 marks)
•?This section consists of Long Questions.(word limit 150-200 words)
•?Each question carries 10 marks.
•?Attempt any two questions.
1. Justify the following statement “Thrashing can arise in a paged virtual memory system using
a working set memory allocator; however, it cannot last for long.”
2. Write a short note on actions to be performed during a file deletion operation while it links
exist in the directory structure?
3. An update file is one that is read and modified during processing; a process heads a record
modifies it in memory and writes it back while processing the file.
(a) Which I/O device is best suited for recording an update file?
(b) Is buffering and blocking of records useful for an update file?
END OF SECTION C
Examination Paper: Operating System
IIBM Institute of Business Management 4
Section D: Applied Theory (40 marks)
•?This section consists of applied theory questions.
•?Each question carries 20 marks.
•?Attempt any two questions.
•?Detailed information should form the part of your answer (word limit 200-250 words).
1. Explain how starvation is avoided is the UNIX and Window system?
2. (a) Does swapping improve / degrade efficiency of system utilization?
(b) Does swapping increase the effective degree of multiprogramming?
(c) Can swapping be used in a multiprogramming system? Clearly justify your answers?
3. Discuss influence of disk scheduling algorithms on effectiveness of I/O buffering?
4. Explore the possibility of implementing the blocking and non-blocking protocols using
monitors. What are the difficulties in the implementation?
END OF SECTION D
-----------------------------------------------------------------***----------------------------------------------------------
S-1-221110
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