System Administrator 2026 — MCQs City

System Administrator 2026

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The ______ register is written by the host to send output.

A. Status
B. Control
C. Data in
D. Data out

The hardware mechanism that allows a device to notify the CPU is called _______

A. Polling
B. Interrupt
C. Driver
D. Controlling

The CPU hardware has a wire called __________ that the CPU senses after executing every instruction.

A. Interrupt request line
B. Interrupt bus
C. Interrupt receive line
D. Interrupt sense line

The _________ determines the cause of the interrupt, performs the necessary processing and executes a return from the interrupt instruction to return the CPU to the execution state prior to the interrupt.

A. Interrupt request line
B. Device driver
C. Interrupt handler
D. All of the mentioned

In general the two interrupt request lines are ____________

A. Maskable & non maskable interrupts
B. Blocked & non maskable interrupts
C. Maskable & blocked interrupts
D. None of the mentioned

The _________ are reserved for events such as unrecoverable memory errors.

A. Non maskable interrupts
B. Blocked interrupts
C. Maskable interrupts
D. None of the mentioned

In rate monotonic scheduling ____________

A. Shorter duration job has higher priority
B. Longer duration job has higher priority
C. Priority does not depend on the duration of the job
D. None of the mentioned

In which scheduling certain amount of CPU time is allocated to each process?

A. Earliest deadline first scheduling
B. Proportional share scheduling
C. Equal share scheduling
D. None of the mentioned

The problem of priority inversion can be solved by ____________

A. Priority inheritance protocol
B. Priority inversion protocol
C. Both priority inheritance and inversion protocol
D. None of the mentioned

Time duration required for scheduling dispatcher to stop one process and start another is known as ____________

A. Process latency
B. Dispatch latency
C. Execution latency
D. Interrupt latency

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