C191 Operating Systems for Programmers Practice Questions - Set 2 - Part 3

Test your knowledge of data-driven decision making concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 41: What is the main advantage of using dynamic memory allocation?

A) It is faster than static allocation

B) It allows for efficient use of memory

C) It eliminates the need for a file system

D) It requires less memory than static allocation

Question 42: In a microkernel architecture, which services are typically implemented in user space?

A) Memory management and device drivers

B) File system and process management

C) Networking and I/O operations

D) Most OS services

Question 43: Which scheduling algorithm uses priorities to determine the order of process execution?

A) First-Come, First-Served (FCFS)

B) Shortest Job First (SJF)

C) Priority Scheduling

D) Round Robin

Question 44: What is the function of the page table in a paging system?

A) To track disk I/O operations

B) To map virtual addresses to physical addresses

C) To manage process states

D) To allocate memory

Question 45: Which of the following best defines "starvation" in process scheduling?

A) A process is unable to execute due to a lack of resources

B) A process is blocked indefinitely waiting for a resource

C) A process is terminated unexpectedly

D) A process is continuously preempted by higher-priority processes

Question 46: What is the purpose of a system call in an operating system?

A) To terminate a process

B) To allow user programs to request services from the kernel

C) To switch between user and kernel mode

D) To allocate memory

Question 47: In what scenario would a process be placed in the "blocked" state?

A) When it is waiting for user input

B) When it has completed execution

C) When it is using the CPU

D) When it is waiting for memory allocation

Question 48: What is the significance of the kernel space and user space distinction?

A) It determines the amount of memory available for processes

B) It separates privileged code from unprivileged code for security

C) It affects the speed of process execution

D) It influences the scheduling of processes

Question 49: In which scenario would "inter-process communication" (IPC) be necessary?

A) When a single-threaded application requires data

B) When processes need to share data or synchronize actions

C) When processes run in isolation without any data exchange

D) When a process is terminated

Question 50: What is the role of the operating system's scheduler?

A) To handle user inputs

B) To manage network communication

C) To decide the order of process execution

D) To allocate memory resources

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