Operating System Questions And Answers

Here you can find Operating System Questions and Answers.

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Operating System Questions and Answers - Chapters

• Basics Questions & Answers
• CPU Scheduling Questions & Answers
• Deadlocks Questions and Answers
• Memory Management Questions and Answers
• RAID Questions and Answers
• Processes Questions and Answers
• Security Questions and Answers
• Interfaces Questions & Answers
• Semaphores Questions & Answers
• Virtual Memory Questions & Answers
• Threads Questions & Answers

Basics Questions & Answers

1. What is operating system?

Basics Questions & Answers

2. To access the services of operating system, the interface is provided by the:

Basics Questions & Answers

3. Which one of the following is not true?

Basics Questions & Answers

4. Which one of the following error will be handle by the operating system?

Basics Questions & Answers

5. The main function of the command interpreter is:

CPU Scheduling Questions & Answers

1. Which module gives control of the CPU to the process selected by the short-term scheduler?

CPU Scheduling Questions & Answers

2. The processes that are residing in main memory and are ready and waiting to execute are kept on a list called:

CPU Scheduling Questions & Answers

3. The interval from the time of submission of a process to the time of completion is termed as:

CPU Scheduling Questions & Answers

4. Which scheduling algorithm allocates the CPU first to the process that requests the CPU first?

CPU Scheduling Questions & Answers

5. In priority scheduling algorithm:

Deadlocks Questions and Answers

1. What is the reusable resource?

Deadlocks Questions and Answers

2. Which of the following condition is required for deadlock to be possible?

Deadlocks Questions and Answers

3. A system is in the safe state if:

Deadlocks Questions and Answers

4. The circular wait condition can be prevented by:

Deadlocks Questions and Answers

5. Which one of the following is the deadlock avoidance algorithm?

Memory Management Questions and Answers

1. CPU fetches the instruction from memory according to the value of:

Memory Management Questions and Answers

2. A memory buffer used to accommodate a speed differential is called:

Memory Management Questions and Answers

3. Which one of the following is the address generated by CPU?

Memory Management Questions and Answers

4. Run time mapping from virtual to physical address is done by:

Memory Management Questions and Answers

5. Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called:

RAID Questions and Answers

1. RAID level 3 supports a lower number of I/Os per second, because _______________.

RAID Questions and Answers

2. RAID level _____ is also known as block interleaved parity organisation and uses block level striping and keeps a parity block on a seperate disk.

RAID Questions and Answers

3. A performance problem with _________ is the expense of computing and writing parity.

RAID Questions and Answers

4. In RAID level 4, one block read, accesses __________.

RAID Questions and Answers

5. The overall I/O rate in RAID level 4 is :

Processes Questions and Answers

1. The systems which allows only one process execution at a time, are called:

Processes Questions and Answers

2. In operating system, each process has its own:

Processes Questions and Answers

3. In Unix, Which system call creates the new process?

Processes Questions and Answers

4. A process can be terminated due to:

Processes Questions and Answers

5. What is the ready state of a process?

Security Questions and Answers

1. Which of the following are forms of malicious attack ?

Security Questions and Answers

2. What are common security threats ?

Security Questions and Answers

3. From the following, which is not a common file permission ?

Security Questions and Answers

4. Which of the following is a good practice ?

Security Questions and Answers

5. What is not a good practice for user administration ?

Semaphores Questions and Answers

1. An un-interruptible unit is known as :

Semaphores Questions and Answers

2. The TestAndSet instruction is executed :

Semaphores Questions and Answers

3. Semaphore is a/an _______ to solve the critical section problem.

Semaphores Questions and Answers

4. Spinlocks are :

Semaphores Questions and Answers

5. The main disadvantage of spinlocks is that :

Virtual Memory Questions & Answers

1. Because of virtual memory, the memory can be shared among:

Virtual Memory Questions & Answers

2. _____ is the concept in which a process is copied into main memory from the secondary memory according to the requirement.

Virtual Memory Questions & Answers

3. The pager concerns with the:

Virtual Memory Questions & Answers

4. Swap space exists in:

Virtual Memory Questions & Answers

5. When a program tries to access a page that is mapped in address space but not loaded in physical memory, then?

Threads Questions & Answers

1. Which one of the following is not shared by threads?

Threads Questions & Answers

2. A process can be:

Threads Questions & Answers

3. If one thread opens a file with read privileges then:

Threads Questions & Answers

4. The time required to create a new thread in an existing process is:

Threads Questions & Answers

5. When the event for which a thread is blocked occurs,