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Computer MCQs with Answers and Detailed Explanations
550+ computer MCQs with answers and detailed explanations for NTS, PPSC, FPSC and job tests. MS Office, hardware, networking and IT basics explained. Take a scored quiz instead →
What topology connects every network device to a central hub or switch using individual cables?
ABus Topology
BRing Topology
CStar Topology
DMesh Topology
Which error-checking code uses extra parity bits inserted at specific positions to detect and correct single-bit memory errors?
ACyclic Redundancy Check (CRC)
BChecksum
CHamming Code
DLRC (Longitudinal Redundancy Check)
Which condition occurs in an Operating System when two or more processes are blocked indefinitely, each waiting for a resource held by the other?
AThrashing
BDeadlock
CStarvation
DPaging
What CPU scheduling algorithm allocates time slices (quanta) to each process in a cyclic order without priority?
AFirst-Come, First-Served (FCFS)
BShortest Job First (SJF)
CRound Robin (RR)
DPriority Scheduling
In memory management, what is the term for the memory management technique that allows execution of processes that are not completely loaded in physical RAM?
AVirtual Memory
BStatic Partitioning
CCompaction
DSegmentation