CSS - PMS - CCE - PCS - General Science
Cyber Security
What does multi-factor authentication improve?
A. Internet speed
B. Screen resolution
C. Disk capacity
D. Account security by requiring more than one type of authentication factor
Correct Answer: D
MFA reduces reliance on a single password by adding another factor such as a token or biometric.
CSS - PMS - CCE - PCS - General Science
Cyber Security
What is ransomware?
A. A search engine
B. Malware that blocks access to systems or data, often by encryption, and demands payment
C. A password manager
D. A firewall rule
Correct Answer: B
Ransomware extorts victims by denying access to data or systems.
CSS - PMS - CCE - PCS - General Science
Cyber Security
What is malware?
A. A database field
B. Malicious software designed to harm, disrupt or gain unauthorized access
C. A secure protocol
D. Any old software
Correct Answer: B
Malware includes viruses, worms, trojans, ransomware and spyware.
CSS - PMS - CCE - PCS - General Science
Cyber Security
What is phishing?
A. A legal software update
B. A fraudulent attempt to trick users into revealing information or taking harmful actions
C. A data backup method
D. A CPU scheduling algorithm
Correct Answer: B
Phishing often impersonates trusted entities through email, messages or websites.
CSS - PMS - CCE - PCS - General Science
Cyber Security
What is cybersecurity?
A. Protection of systems, networks and data from digital attacks and unauthorized access
B. Only software installation
C. Only computer repair
D. Only internet browsing
Correct Answer: A
Cybersecurity covers confidentiality, integrity, availability and resilience of digital systems.
CSS - PMS - CCE - PCS - General Science
CPU
Which memory is generally faster: CPU cache or main RAM?
A. CPU cache
B. Both are always identical
C. Neither stores data
D. Main RAM
Correct Answer: A
Cache is smaller and faster than main memory and is located closer to CPU execution units.
CSS - PMS - CCE - PCS - General Science
CPU
What is the fetch-decode-execute cycle?
A. A printer maintenance routine
B. The basic sequence used by a processor to retrieve, interpret and carry out instructions
C. A method for browsing websites
D. A network cable test
Correct Answer: B
Processors repeatedly fetch instructions, decode them and execute the specified operations.
CSS - PMS - CCE - PCS - General Science
CPU
What is an instruction set architecture (ISA)?
A. An email protocol
B. A disk formatting method
C. A browser history list
D. The programmer-visible set of instructions and machine-level conventions a CPU supports
Correct Answer: D
The ISA defines machine instructions, registers and related architectural behavior.
CSS - PMS - CCE - PCS - General Science
CPU
What is cache memory in a CPU used for?
A. Storing passwords on paper
B. Permanent archival storage
C. Keeping frequently needed data and instructions close to the processor
D. Displaying graphics only
Correct Answer: C
CPU cache reduces latency relative to accessing main memory.
CSS - PMS - CCE - PCS - General Science
CPU
What is a CPU core?
A. A network port only
B. A keyboard key
C. A hard-drive sector
D. An independent processing unit within a CPU package
Correct Answer: D
Multicore CPUs contain multiple execution cores capable of processing instruction streams.
CSS - PMS - CCE - PCS - General Science
CPU
What is CPU clock speed commonly measured in?
A. Bytes
B. Meters
C. Hertz, often gigahertz
D. Volts only
Correct Answer: C
Clock frequency indicates cycles per second and is usually reported in GHz for modern CPUs.
CSS - PMS - CCE - PCS - General Science
CPU
What are CPU registers?
A. Printer buffers only
B. Very small, very fast storage locations inside the processor
C. Large external backup drives
D. Internet servers
Correct Answer: B
Registers hold operands, addresses and intermediate values close to execution units.
CSS - PMS - CCE - PCS - General Science
CPU
Which CPU component directs instruction execution and coordinates operations?
A. Sound card
B. Control unit
C. Printer
D. SSD
Correct Answer: B
The control unit decodes instructions and orchestrates data movement and execution.
CSS - PMS - CCE - PCS - General Science
CPU
Which CPU component performs arithmetic and logical operations?
A. Monitor
B. ALU
C. RAM
D. Hard disk
Correct Answer: B
The Arithmetic Logic Unit carries out arithmetic and Boolean operations.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is a cloud region?
A. A geographic area containing one or more provider data-center locations
B. A CPU core
C. A file extension
D. A browser tab
Correct Answer: A
Cloud providers organize infrastructure geographically into regions and availability zones.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is a common benefit of cloud computing?
A. No security responsibilities ever
B. Guaranteed zero outages
C. Unlimited free resources
D. On-demand scalability
Correct Answer: D
Cloud services can provide flexible capacity without owning all underlying hardware.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is virtualization?
A. Printing documents
B. Converting text to audio only
C. Creation of virtual computing environments on shared physical hardware
D. Replacing software with paper
Correct Answer: C
Virtualization allows multiple isolated VMs or environments to share hardware.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is elasticity in cloud computing?
A. Ability to scale resources up or down with demand
B. A type of encryption
C. Ability to physically stretch servers
D. A permanent fixed capacity
Correct Answer: A
Elasticity lets workloads adapt resource allocation to changing demand.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is a private cloud?
A. Any personal laptop
B. Only a public website
C. A cloud with no virtualization
D. Cloud infrastructure dedicated to a single organization
Correct Answer: D
Private clouds are provisioned for exclusive organizational use.
CSS - PMS - CCE - PCS - General Science
Cloud Computing
What is a public cloud?
A. A computer with no internet
B. A cloud used only by government
C. Cloud infrastructure offered to multiple customers by a provider
D. A server that has no security
Correct Answer: C
Public clouds pool provider infrastructure across many customers with logical isolation.