Which of the following statements are correct about a real-time operating…
2026
Which of the following statements are correct about a real-time operating system (RTOS)?
A. It permits creation of multiple processes within an application.
B. It does not permit priorities to be assigned to processes.
C. It permits a programmer to define interrupts and interrupt processing routines.
D. It does not use priority-driven or deadline-oriented scheduling.
E. It provides fault tolerance and graceful degradation capabilities.
Choose the correct answer from the options given below.
- A.
A, B & D only
- B.
B, C & D only
- C.
A, C & E only
- D.
B, D & E only
Attempted by 569 students.
Show answer & explanation
Correct answer: C
Correct answer: A, C & E only
A is true: RTOSs support concurrent real-time tasks/processes so time-critical activities can be handled together.
B is false: RTOSs commonly allow priorities to be assigned to tasks/processes.
C is true: RTOSs support interrupt handling, and programmers can define interrupt service routines where the platform permits it.
D is false: Priority-driven or deadline-oriented scheduling is a core RTOS feature.
E is true: RTOSs used in critical systems often provide reliability support such as fault tolerance and graceful degradation.
Therefore, the correct set is A, C and E only.