RTOS Quiz

According to the outline, which operating system is mentioned as being used as an RTOS?

• Unix

• MacOS

• Android

• DOS

Which feature of RTOS helps in minimizing the delay between an interrupt and the start of its service routine?

• Predictable and Fast Interrupt Latency

• Support for Asynchronous IO

• Batch Processing

• File Encryption

Why must a real-time operating system support static priority levels?

• To ensure predictable task scheduling

• To allow dynamic memory allocation

• To improve graphical performance

• To enable user authentication

In a system that requires precise timing for task execution, which RTOS feature should be prioritized?

• Clock and Timer Support

• File System Management

• Network Protocol Support

• User Interface Design

Which of the following best describes task preemption in a real-time operating system (RTOS)?

• The process of allowing a high priority task to interrupt and take over the CPU from a low priority task

• The process of scheduling tasks based on their memory requirements

• The process of running all tasks simultaneously

• The process of delaying all tasks until the CPU is idle

In contemporary real-time operating systems, what is the typical order of task preemption times?

• Several minutes

• A few milliseconds

• A few microseconds

• Several hours

In real-time operating systems, what is the expected upper bound on interrupt latency?

• Less than a few microseconds.

• Less than a few milliseconds.

• Less than a few seconds.

• Less than a few nanoseconds.

Why is fetching pages from secondary memory considered a problem in RTOS memory management?

• It introduces delays in accessing required data

• It increases the number of CPU registers

• It reduces the number of processes

• It improves memory protection

What do traditional read() or write() system calls typically perform?

• Synchronous I/O

• Asynchronous I/O

• Non-blocking I/O

• Parallel I/O

Which of the following is a commercial RTOS developed by Wind River?

• PSOS

• QNX

• Lynx

• RT Linux