CompTIA ITF+ ITF Infrastructure 2

Question 1

Which type of cable uses light pulses to transmit data and is immune to electromagnetic interference?

Accepted Answer

Fiber optic cable

Answer

Fiber optic cable transmits data as light pulses through glass or plastic strands, making it immune to electromagnetic interference.

Question 2

A user's laptop shows 'No Boot Device Found.' What is the most likely cause?

Accepted Answer

The hard drive has failed or is not detected

Answer

A 'No Boot Device Found' error typically indicates the hard drive has failed or the BIOS cannot detect a bootable storage device.

Question 3

What does the acronym BIOS stand for?

Accepted Answer

Basic Input/Output System

Answer

BIOS stands for Basic Input/Output System, the firmware that initializes hardware during the boot process before handing control to the OS.

Question 4

Which wireless standard operates exclusively on the 5 GHz band and offers speeds up to 3.5 Gbps?

Accepted Answer

802.11ac

Answer

802.11ac (Wi-Fi 5) operates exclusively on the 5 GHz band and supports theoretical speeds up to 3.5 Gbps.

Question 5

What is the primary function of a network switch?

Accepted Answer

Forward data frames between devices on the same network using MAC addresses

Answer

A network switch uses MAC addresses to forward data frames only to the intended destination device within the same local network.

CompTIA Practice Test