Operating System Quiz (Set 17) - Upskilling Engineers

Operating System (Set 7)

1 / 10

What is the purpose of a trap in operating systems?

To manage communication between hardware devices and the CPU

To provide user interfaces for applications

To transfer control from a user program to the operating system kernel

To synchronize and control access to shared resources among multiple processes

2 / 10

What is the purpose of a dirty bit in page table entries?

To indicate whether a page in virtual memory has been modified since it was loaded into main memory

To store metadata and information about a file

To manage communication between hardware devices and the CPU

To allocate memory to different processes

3 / 10

What is the role of a mutex in concurrent programming?

To determine the priority of a process

To manage communication between hardware devices and the CPU

To provide mutual exclusion and ensure that only one thread can access a shared resource at a time

To synchronize and control access to shared resources among multiple processes

4 / 10

What is the purpose of a superblock in file systems?

To manage printer jobs by queuing and scheduling them

To store metadata and information about a file

To manage the storage and retrieval of files

To store critical information about the file system, such as its size and status

5 / 10

What is the role of a RAID (Redundant Array of Independent Disks) in storage systems?

To provide an abstract representation of an opened file

To allocate memory to different processes

To store metadata and information about a file

To improve performance, reliability, or a combination of both for storage devices

6 / 10

What is the purpose of a zombie process in Unix-like operating systems?

To manage communication between hardware devices and the CPU

To allocate memory to different processes

A process that has completed its execution but still has an entry in the process table

To synchronize and control access to shared resources among multiple processes

7 / 10

What is the role of a bootloader in operating systems?

To manage communication between hardware devices and the CPU

To provide user interfaces for applications

To allocate memory to different processes

To load the operating system into memory and start its execution

8 / 10

What is a condition variable in concurrent programming?

A type of memory management technique

A synchronization mechanism used for inter-process communication

A variable that processes can wait on and signal to coordinate their activities

A type of hardware component used for input/output operations

9 / 10

What is the purpose of a fork() system call in Unix-like operating systems?

To manage the execution of processes in the CPU

To create a new process by duplicating the existing process

To determine the priority of a process

To manage communication between hardware devices and the CPU

10 / 10

What is the role of a file allocation table (FAT) in file systems?

To manage communication between hardware devices and the CPU

To store metadata and information about a file

To keep track of the allocation status of each cluster in a storage device

To provide an abstract representation of an opened file

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