Computer
Computer MCQs With Answers
596 Computer MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
How long is a standard MAC address in bits?
A32 bits
B48 bits
C64 bits
D128 bits
What does SQL stand for in database management systems?
AStructured Query Language
BSystem Query Language
CStandard Question Language
DSequential Query Logic
How many Bytes are in one Kilobyte (KB) in binary standard measurement?
A1024 Bytes
B2048 Bytes
C512 Bytes
D1000 Bytes
What is a malicious software program designed to replicate itself and spread to other computers called?
AShareware
BFirewall
CVirus / Worm
DFirmware
In relational databases, what is a column that uniquely identifies each row/record in a table called?
APrimary Key
BUnique Index
CCandidate Key
DForeign Key
How many Megabytes (MB) make up one Gigabyte (GB)?
A1024 MB
B512 MB
C2048 MB
D1000 MB
What type of malware restricts access to a computer system or files and demands payment to restore access?
ARansomware
BSpyware
CTrojan Horse
DAdware
What does PDF stand for in digital file formats?
APrintable Document File
BPage Presentation Format
CPersonal Document Format
DPortable Document Format
Which computer numbering system uses only two digits, 0 and 1?
ADecimal System
BBinary System
CHexadecimal System
DOctal System
Which cybersecurity mechanism acts as a barrier between a trusted internal network and untrusted external networks?
AProxy Server
BAntivirus
CFirewall
DRouter