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This set of Embedded and Real Time System Multiple Choice Questions & Answers (MCQs) focuses on Embedded And Real Time System Set 6
Q1 | Time duration required for scheduling dispatcher to stop one process and start another is known as
- process latency
- dispatch latency
- execution latency
- interrupt latency
Q2 | Which one of the following is a real time operating system?
- rtlinux
- vxworks
- windows ce
- all of the mentioned
Q3 | VxWorks is centered around
- wind microkernel
- linux kernel
- unix kernel
- none of the mentioned
Q4 | Identify the standard software components that can be reused?
- application manager
- operating system
- application software
- memory
Q5 | What does WCTE stand for?
- wait case execution time
- wait case encoder time
- worst case execution time
- worst code execution time
Q6 | For which of the following WCET can be computed?
- c program
- assembly language
- vhdl
- program without recursion
Q7 | The WCET of which component can be computed if the task is mapped to hardware?
- hardware
- task
- both task and hardware
- application manager
Q8 | Which estimation approach is used by Jha and Dutt for hardware?
- accurate cost and performance value
- estimated cost and performance value
- performance value
- accurate cost
Q9 | Which estimate approach is more precise?
- estimated cost and performance value
- accurate cost and performance value
- performance value and execution time
- estimated cost
Q10 | Which estimate approach takes more time to consume?
- accurate value
- estimated value
- accurate cost and performance value
- estimated cost and performance value
Q11 | Which estimation technique can be used if interfaces to software synthesis tools and hardware synthesis tools exist?
- performance value
- estimated cost
- estimated cost and performance value
- accurate cost and performance value
Q12 | Which of the following is the base for scheduling algorithm?
- wcet
- time
- execution time
- address accessing time
Q13 | To schedule the processes, they are considered
- infinitely long
- periodic
- heavy weight
- light weight
Q14 | If the period of a process is ‘p’, then what is the rate of the task?
- p2
- 2*p
- 1/p
- p
Q15 | The scheduler admits a process using
- two phase locking protocol
- admission control algorithm
- busy wait polling
- none of the mentioned
Q16 | Rate monotonic scheduling assumes that the
- processing time of a periodic process is same for each cpu burst
- processing time of a periodic process is different for each cpu burst
- periods of all processes is the same
- none of the mentioned
Q17 | In rate monotonic scheduling, a process with a shorter period is assigned
- a higher priority
- a lower priority
- higher & lower priority
- none of the mentioned
Q18 | Is it possible to schedule these tasks so that each meets its deadline using Rate monotonic scheduling?
- yes
- no
- maybe
- none of the mentioned
Q19 | If a set of processes cannot be scheduled by rate monotonic scheduling algorithm, then
- they can be scheduled by edf algorithm
- they cannot be scheduled by edf algorithm
- they cannot be scheduled by any other algorithm
- none of the mentioned
Q20 | A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35. Can the processes be scheduled without missing the deadlines?
- yes
- no
- maybe
- none of the mentioned
Q21 | What type of fault remains in the system for some period and then disappears?
- permanent
- transient
- intermittent
- all of the mentioned
Q22 | Which of the following approaches are used to achieve reliable systems?
- fault prevention
- fault removal
- fault tolerance
- all of the mentioned
Q23 | A system maintaining its integrity while accepting a temporary halt in its operation is said to be in a state of
- full fault tolerance
- graceful degradation
- fail soft
- fail safe
Q24 | Which of the following Error Detection checks is not a part of Application detection?
- hardware checks
- timing checks
- reversal checks
- coding checks
Q25 | Exception handling is a type of
- forward error recovery mechanism
- backward error recovery mechanism
- all of the mentioned
- none of the mentioned