Computer
Computer MCQs With Answers
596 Computer MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
Which vulnerability allows an attacker to manipulate backend SQL database queries by inputting untrusted payload text into input fields?
ACross-Site Request Forgery (CSRF)
BSQL Injection (SQLi)
CBuffer Overflow
DPhishing
What is the 2’s complement representation of the decimal number -5 using an 8-bit signed binary format?
A11111011
B11111010
C10000101
D11111101
Which system software component translates a high-level source code file into object code modules prior to linking?
ALinker
BCompiler
CLoader
DDebugger
Which field of Artificial Intelligence enables machines to process, interpret, and understand human text and spoken language?
AComputer Vision
BNatural Language Processing (NLP)
CRobotics Process Automation (RPA)
DExpert Systems
What is the primary function of the Operating System’s Loader?
ATranslates high-level code into executable files
BLoads executable program binaries from disk into primary memory (RAM) for execution
CAllocates IP addresses to running network sockets
DSaves active CPU registry states to permanent storage
What distributed, decentralized digital ledger technology securely records transactions across a peer-to-peer network using cryptographic hashing?
ACloud Storage
BBlockchain
CRelational Database
DData Warehouse
Which wireless communication protocol standard defines Low-Rate Wireless Personal Area Networks (LR-WPANs) widely used in IoT smart home sensors?
AIEEE 802.11
BIEEE 802.15.4 (Zigbee)
CIEEE 802.3
DIEEE 802.16
Which type of bus in a computer system allows high-speed communication specifically between the CPU, RAM, and graphics processing hardware?
APCIe (Peripheral Component Interconnect Express)
BUSB Bus
CSATA Bus
DParallel Port
What mathematical law describes the empirical observation that the number of transistors on a microchip doubles approximately every two years?
AAmdaahl's Law
BMoore's Law
CMetcalfe's Law
DGustafson's Law
What is the primary function of an Assembler in computer programming?
ATranslates High-Level Language source code into Machine Code line by line
BTranslates Assembly Language mnemonic code into Machine Code (Binary)
CLinks object files together to create an executable binary file
DExecutes high-level code directly without compilation