SBI Specialist Officer Exam 2024

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Questions and Answers

What is the primary function of a Time-Sharing Operating System?

To manage multiple computers as a single system.
To provide precise timing for real-time applications.
To allow multiple users to share system resources simultaneously. (correct)
To control the execution of processes in the background.

Which operating system type is specifically designed for tasks requiring precise timing?

Distributed Operating System
Time-Sharing Operating System
Embedded Operating System
Real-Time Operating System (RTOS) (correct)

Which of the following examples is a proprietary operating system?

Linux
macOS (correct)
Android
FreeBSD

What system call would you use to create a new process?

fork() (B) Signup and view all the answers

Which system call is responsible for terminating a calling process?

exit() (C) Signup and view all the answers

What is the role of the open() system call?

To open a file for reading or writing. (C) Signup and view all the answers

What is a primary characteristic that differentiates processes from threads?

Threads can handle multiple tasks at once within a process. (A) Signup and view all the answers

Which of the following operating systems is based on Linux?

Android (B) Signup and view all the answers

What system call would you use to read data from a file?

read() (B) Signup and view all the answers

What is a key advantage of using threads over processes?

Threads require less memory overhead than processes. (A) Signup and view all the answers

Which method is commonly used for Inter-Process Communication (IPC)?

Shared files (B) Signup and view all the answers

What is a potential consequence of deadlock in a computer system?

Processes may stop executing completely. (B) Signup and view all the answers

Which memory type is typically used for storing active processes in a computing environment?

Main memory (C) Signup and view all the answers

What is the primary purpose of synchronization in concurrent programming?

To ensure consistent access to shared resources. (D) Signup and view all the answers

What does Virtual Memory allow a computer to do?

Run applications that require more memory than is physically available. (D) Signup and view all the answers

In the context of memory types, secondary storage is primarily used for what purpose?

Archiving data for long-term use. (B) Signup and view all the answers

What is the primary role of an operating system?

To manage computer hardware and provide a user interface. (C) Signup and view all the answers

Which of the following is NOT a primary function of an operating system?

Compiler Optimization (D) Signup and view all the answers

In which type of operating system do users interact indirectly with the system?

Batch Operating System (D) Signup and view all the answers

How does an operating system handle file management?

By organizing files into directories and controlling file access. (D) Signup and view all the answers

What does the security and protection function of an operating system ensure?

That unauthorized access to sensitive data is prevented. (C) Signup and view all the answers

Which user interface types does an operating system typically provide?

Command-Line Interface and Graphical User Interface (B) Signup and view all the answers

What is the main task of memory management in an operating system?

To allocate and deallocate memory for processes. (B) Signup and view all the answers

Which of the following describes how the operating system interacts with peripheral devices?

By ensuring smooth communication and control between the devices and the system. (C) Signup and view all the answers

What is a key feature of thread management that distinguishes it from process management?

Thread scheduling is less complex than process scheduling. (D) Signup and view all the answers

Which method of inter-process communication allows for communication between unrelated processes?

Named Pipes (FIFOs) (C) Signup and view all the answers

What is the primary benefit of using threads over processes?

Threads have a lower overhead due to shared resources. (A) Signup and view all the answers

Which multithreading model allows multiple user-level threads to map to multiple kernel threads?

Many-to-Many (B) Signup and view all the answers

What term describes the part of a program where shared memory is accessed, posing a risk when multiple processes operate on it simultaneously?

Critical Section (C) Signup and view all the answers

Which of the following statements correctly describes the differences in communication complexity between processes and threads?

Threads facilitate easier communication due to their shared memory. (C) Signup and view all the answers

What is a race condition?

A situation where multiple processes read and write shared data in an unpredictable manner. (A) Signup and view all the answers

Which of the following statements is true about context switching between threads and processes?

Context switching for threads is generally faster due to shared resources. (C) Signup and view all the answers

What is one of the primary benefits of virtual memory?

Increased address space for processes (B) Signup and view all the answers

Which page replacement algorithm includes evicting the oldest page from memory?

First-In, First-Out (FIFO) (C) Signup and view all the answers

What does segmentation in virtual memory allow for?

Logical division of a program mapped to physical memory (D) Signup and view all the answers

Which component of memory is specifically designed to provide high-speed data access to the processor?

Cache memory (C) Signup and view all the answers

What role does the page table play in virtual memory?

Maps virtual pages to physical memory frames (B) Signup and view all the answers

What is the primary purpose of swapping in the context of virtual memory?

To free up physical memory by moving data to disk storage (D) Signup and view all the answers

Which of the following is NOT a characteristic of cache memory?

Larger than main memory (A) Signup and view all the answers

What happens during a page fault in virtual memory?

The system retrieves the needed page from disk (C) Signup and view all the answers

What happens to cache memory when power is turned off?

It loses its contents. (C) Signup and view all the answers

Which level of cache is typically the fastest?

L1 Cache (A) Signup and view all the answers

What type of memory typically has a larger capacity?

Main Memory (A) Signup and view all the answers

Which type of RAM needs to be refreshed periodically?

Dynamic RAM (DRAM) (B) Signup and view all the answers

Which caching technique allows a block to be placed in any cache line?

Associative Mapping (C) Signup and view all the answers

In terms of speed, how does main memory compare to secondary storage?

Faster than secondary storage. (B) Signup and view all the answers

What is the primary function of cache memory?

To store copies of frequently accessed data. (D) Signup and view all the answers

Which of the following is an example of secondary storage?

Hard Disk Drive (B) Signup and view all the answers

Flashcards

Process State Transitions

Different stages a process goes through while running (e.g., running, ready, waiting)

Threads

Lightweight units of execution within a process