CSS - PMS - CCE - PCS - General Science
RAM
What does DRAM stand for?
A. Dynamic Random Access Memory
B. Digital Remote Active Memory
C. Dual Register Arithmetic Memory
D. Direct Read Access Module
Correct Answer: A
DRAM stores bits in capacitor-based cells that require periodic refreshing.
CSS - PMS - CCE - PCS - General Science
RAM
Which is generally faster for random access: RAM or a hard disk drive?
A. They are always identical
B. RAM
C. Hard disk drive
D. Neither stores data
Correct Answer: B
Semiconductor RAM has much lower access latency than mechanical hard drives.
CSS - PMS - CCE - PCS - General Science
RAM
What is RAM mainly used for?
A. Producing printed pages
B. Permanent archival storage only
C. Temporarily storing data and instructions currently in use
D. Providing network addresses
Correct Answer: C
RAM provides fast working storage for running software.
CSS - PMS - CCE - PCS - General Science
RAM
Is ordinary system RAM volatile?
A. Only if connected to the Internet
B. Only on Mondays
C. No, it permanently stores data without power
D. Yes
Correct Answer: D
Volatile RAM loses its contents when power is removed.
CSS - PMS - CCE - PCS - General Science
RAM
What does RAM stand for?
A. Rapid Arithmetic Machine
B. Read All Memory
C. Random Access Memory
D. Remote Access Module
Correct Answer: C
RAM is the main working memory used by active programs and data.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is booting?
A. The process of starting a computer and loading the operating system
B. Printing a document
C. Deleting the Internet
D. Formatting text only
Correct Answer: A
Boot firmware initializes hardware and loads the OS into memory.
CSS - PMS - CCE - PCS - General Science
Operating Systems
Which is an example of an operating system?
A. HTML
B. SQL
C. Linux
D. HTTP
Correct Answer: C
Linux is an operating-system kernel and the basis of many OS distributions.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is a user interface in an operating system?
A. A means for users to interact with the system, such as a GUI or command line
B. A data packet
C. A processor cache only
D. A hard-disk sector
Correct Answer: A
Operating systems expose graphical and/or command-line interfaces.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is a device driver?
A. A type of malware only
B. Software that lets the operating system communicate with specific hardware
C. A web search result
D. A person operating a car
Correct Answer: B
Drivers translate OS requests into hardware-specific operations.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is the kernel?
A. A user password
B. A keyboard shortcut
C. A web page
D. The core part of an operating system that manages low-level resources
Correct Answer: D
The kernel controls CPU, memory, devices and privileged operations.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is multitasking?
A. Running or making progress on multiple programs by sharing processor time
B. Turning off the CPU
C. Using one program only
D. Formatting a disk
Correct Answer: A
Operating systems schedule tasks rapidly to support concurrent activity.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is a file system?
A. A method used by an OS to organize and store files on storage devices
B. A CPU instruction only
C. An email message
D. A type of monitor
Correct Answer: A
File systems manage names, directories, metadata and physical storage allocation.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is virtual memory?
A. A memory-management technique that gives processes a larger logical address space using RAM and secondary storage
B. A browser bookmark
C. A printer queue only
D. A physical extra CPU
Correct Answer: A
Virtual memory maps logical addresses and can page data between RAM and storage.
CSS - PMS - CCE - PCS - General Science
Operating Systems
Which OS component manages running programs?
A. Process manager or scheduler
B. Printer cable
C. Web browser only
D. Monitor
Correct Answer: A
The OS schedules processes and allocates CPU time.
CSS - PMS - CCE - PCS - General Science
Operating Systems
What is an operating system?
A. A type of database record
B. System software that manages hardware resources and provides services to applications
C. A spreadsheet file
D. A network cable
Correct Answer: B
An OS manages processes, memory, devices, storage and user/application interfaces.
CSS - PMS - CCE - PCS - General Science
Internetq
What is bandwidth in networking?
A. The capacity of a communication link to carry data over time
B. The physical width of a monitor
C. A password length
D. A webpage height
Correct Answer: A
Network bandwidth is commonly expressed in bits per second.
CSS - PMS - CCE - PCS - General Science
Internetq
What is an Internet Service Provider (ISP)?
A. A CPU cache
B. A type of malware
C. An organization that provides Internet connectivity
D. A web page language
Correct Answer: C
ISPs connect customers to the broader Internet.
CSS - PMS - CCE - PCS - General Science
Internetq
What is a URL?
A. A CPU register
B. A Uniform Resource Locator identifying the location of a resource
C. A file compression ratio
D. A network cable
Correct Answer: B
URLs identify resources and the scheme used to access them.
CSS - PMS - CCE - PCS - General Science
Internetq
How does HTTPS differ from HTTP?
A. HTTP is always encrypted
B. HTTPS cannot use websites
C. HTTPS is only for email
D. HTTPS protects HTTP traffic using TLS encryption and authentication mechanisms
Correct Answer: D
HTTPS adds transport security to HTTP.
CSS - PMS - CCE - PCS - General Science
Internetq
What does HTTP stand for?
A. High Transfer Text Program
B. Hyperlink Transmission Process
C. Hypertext Transfer Protocol
D. Host Transfer Protocol
Correct Answer: C
HTTP is an application protocol used for web communication.