CompTIA ITF+ Infrastructure and Hardware Questions and Answers — Questions and Answers
Question 1: A technician is setting up a new desktop computer and needs to connect a monitor that supports digital video output for high-definition display. Which of the following port types would be the MOST appropriate choice for this task?
- VGA
- HDMI (Correct answer)
- RJ-45
- PS/2
Correct answer: HDMI
HDMI (High-Definition Multimedia Interface) is a modern digital interface used to transmit high-definition audio and video signals. VGA is an older, analog video standard. RJ-45 is for Ethernet networking, and PS/2 is an outdated port for keyboards and mice.
Question 2: A user wants to add an external device to their laptop that provides input by converting physical documents into digital files. Which of the following peripherals should they install?
- Printer
- Webcam
- Scanner (Correct answer)
- External hard drive
Correct answer: Scanner
A scanner is an input device specifically designed to capture images from physical items like photographs and documents and convert them into a digital format that a computer can store and display.
Question 3: Which internal computer component is often referred to as the 'brain' of the computer, as it performs most of the processing and calculations?
- RAM
- Motherboard
- Hard Drive
- CPU (Correct answer)
Correct answer: CPU
The CPU (Central Processing Unit) is the primary component responsible for executing instructions and performing the arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions.
Question 4: A small office wants to connect several computers, a printer, and a server to a wired network. They need a device that can intelligently forward data packets only to the specific device they are intended for, based on the device's unique address. Which networking device BEST fits this requirement?
- Hub
- Modem
- Switch (Correct answer)
- Firewall
Correct answer: Switch
A switch operates at the Data Link layer (Layer 2) of the OSI model and uses MAC addresses to forward data to specific devices on a local network. This is more efficient than a hub, which broadcasts data to all devices. A modem connects to the internet, and a firewall is a security device.
Question 5: Which of the following is a primary hardware component of a modern smartphone responsible for processing commands and running applications?
- SIM card
- Processor (CPU) (Correct answer)
- Accelerometer
- Battery
Correct answer: Processor (CPU)
The processor, or CPU (Central Processing Unit), is the core component that acts as the 'brain' of the smartphone, executing commands and running the operating system and applications. The SIM card provides cellular connectivity, the accelerometer detects motion, and the battery provides power.
Question 6: A user's laptop has a single, small, oval-shaped port that is used for charging, data transfer, and video output. The user can plug the cable in without worrying about its orientation. What type of port is this?
- USB-A
- DisplayPort
- USB-C (Correct answer)
- Ethernet
Correct answer: USB-C
USB-C is a modern, versatile, and reversible connector standard. It is known for its small, oval shape and its ability to handle power delivery, data transfer, and video output over a single cable.
CompTIA ITF+ Infrastructure and Hardware Questions and Answers
A technician is setting up a new desktop computer and needs to connect a monitor that supports digital video output for high-definition display.
Which of the following port types would be the MOST appropriate choice for this task?