CompTIA ITF+ Infrastructure and Hardware 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?

Accepted Answer

HDMI

Answer

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 RJ-45 is for Ethernet networking, and PS/2 is an outdated port for keyboards and mice.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?

Accepted Answer

Scanner

Answer

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?

Accepted Answer

CPU

Answer

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?

Accepted Answer

Switch

Answer

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?

Accepted Answer

Processor (CPU)

Answer

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.

CompTIA Practice Test

CompTIA Practice Test

CompTIA ITF+ Infrastructure and Hardware Questions and Answers