CompTIA ITF+ ITF Concepts and Terminology 3 — Questions and Answers
Question 1: What term describes the smallest unit of data in a computer, representing either a 0 or a 1?
- Byte
- Nibble
- Bit (Correct answer)
- Word
Correct answer: Bit
A bit (binary digit) is the most basic unit of data in computing, representing a single binary value of 0 or 1.
Question 2: Which type of software license allows users to freely use, modify, and distribute the software?
- Proprietary
- Freeware
- Open source (Correct answer)
- Shareware
Correct answer: Open source
Open source software provides access to its source code, allowing users to freely view, modify, and distribute it.
Question 3: What does 'bandwidth' measure in a network context?
- The delay between sending and receiving data
- The maximum data transfer rate of a connection (Correct answer)
- The number of devices on a network
- The physical length of a network cable
Correct answer: The maximum data transfer rate of a connection
Bandwidth refers to the maximum rate at which data can be transmitted over a network connection, typically measured in Mbps or Gbps.
Question 4: In computing, what is a 'peripheral' device?
- A core internal component like the CPU or RAM
- An external device connected to a computer to add functionality (Correct answer)
- A virtual machine running on a host system
- A network switch connecting multiple devices
Correct answer: An external device connected to a computer to add functionality
A peripheral is an external hardware device connected to a computer, such as a keyboard, mouse, printer, or scanner.
Question 5: What is the function of an 'IP address' on a network?
- To encrypt data packets during transmission
- To uniquely identify a device on a network (Correct answer)
- To measure network bandwidth speed
- To manage user login credentials
Correct answer: To uniquely identify a device on a network
An IP address is a unique numerical label assigned to each device on a network, enabling devices to locate and communicate with each other.
Question 6: Which term refers to software that appears legitimate but secretly performs malicious actions?
- Spyware
- Adware
- Trojan horse (Correct answer)
- Rootkit
Correct answer: Trojan horse
A Trojan horse is malicious software disguised as legitimate software that performs harmful actions once executed.
Question 7: What does 'cloud computing' primarily refer to?
- Using atmospheric data centers to cool servers
- Delivering computing services over the internet on demand (Correct answer)
- Networking computers via wireless radio waves
- Installing software on a local server only
Correct answer: Delivering computing services over the internet on demand
Cloud computing delivers computing services—including servers, storage, and software—over the internet, allowing on-demand access without local infrastructure.
CompTIA ITF+ ITF Concepts and Terminology 3
What term describes the smallest unit of data in a computer, representing either a 0 or a 1?