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CompTIA Tech+ Exam Review - 10.20.2025

Total questions: 35

Worksheet time: 53mins

Name
Class
Date
1.

You’re helping your friend set up their gaming PC, but it won’t start. The motherboard light turns on, but there’s no display or sound. What’s the first thing you should check?

a)

Replace the hard drive

b)

Update the BIOS

c)

Check if the RAM is properly seated

d)

Install a new GPU

e)

Replace the power supply

2.

Liam is working in the office and tells you that his computer “isn’t connecting to Wi-Fi.” You notice the Wi-Fi icon has an “X” on it. What’s your best first move?

a)

Replace the router

b)

Reinstall the operating system

c)

Update the network card driver

d)

Reset the TCP/IP stack

e)

Check if the Wi-Fi is turned on

3.

During long Zoom calls, Noah notices that his computer keeps shutting down randomly. What’s the most likely cause?

a)

Malware

b)

Overheating

c)

Faulty SSD

d)

Outdated browser

e)

Insufficient RAM

4.

Emma is helping set up a new database for her school. She needs to choose the best primary key for identifying students. Which field should she select?

a)

First Name

b)

Last Name

c)

Student ID

d)

Grade Level

e)

Class Name

5.

During a thunderstorm, your office loses power, but your computer stays on for 5 minutes before shutting down. What saved it?

a)

Surge protector

b)

Generator

c)

UPS

d)

Power inverter

e)

Power strip

6.

Your team shares files via a local network folder, but one user can’t see the shared drive. Others can. What should you check first?

a)

DNS server settings

b)

Network permissions

c)

The router’s firewall

d)

Static IP conflicts

e)

Windows version

7.

William is helping his friend fix a computer. He points to the keyboard, monitor, and motherboard and says, "These are examples of hardware." What does William mean by hardware?

a)

The physical components of the computer

b)

The games and programs we use on the computer

c)

The product we create on the computer

d)

The computer

e)

The code that controls the OS

8.

Jackson is at a computer store upgrading his PC. He picks up several components, as shown in the picture. What do these components illustrate?

a)

Desktop tower

b)

Motherboard

c)

Hard Disk Drive (HDD)

d)

RAM

e)

PSU

9.

Grace is trying to print her report, but her printer keeps printing random symbols like “#@!@” instead of the actual content. Why is this happening?

a)

Depleted ink

b)

Wrong printer driver installed

c)

Paper jam

d)

Malware infection

e)

Printer overheating

10.

Michael runs a small business and wants to let guests use Wi-Fi but keep them off his business network. What feature should he enable?

a)

Guest network

b)

Port forwarding

c)

Static IPs

d)

MAC filtering

e)

VPN tunnel

11.

James sets up his Wi-Fi router in his living room and enjoys a strong signal throughout his house. Later, he decides to move the router into a metal cabinet to keep it out of sight. Suddenly, he notices the Wi-Fi signal is very weak. Why?

a)

Wrong password

b)

Outdated firmware

c)

ISP throttling

d)

Metal blocks radio signals

12.

Michael is managing a school’s SQL database and accidentally deleted all student data 😱. Which command would’ve prevented this if used?

a)

INSERT

b)

DROP

c)

BACKUP

d)

UPDATE

e)

GRANT

13.

Nora receives an email from “ITSupport@Micros0ft.com” asking for her password. What attack is this?

a)

Keylogging

b)

Spoofing

c)

Phishing

d)

SQL injection

e)

Denial of Service

14.

A coworker clicks a suspicious link, and their files are now renamed with “.locked.” What’s this?

a)

Virus

b)

Trojan

c)

Worm

d)

Ransomware

e)

Rootkit

15.

Priya is setting up her home Wi-Fi and wants to secure her router login. Which is the strongest password she can choose?

a)

password123

b)

mywifi

c)

router2024

d)

admin

e)

8$Rk!9pQz#1A

16.

Benjamin manages his company’s website. One day, he notices the site suddenly crashes because it’s overwhelmed with a huge amount of fake traffic. What’s this type of attack called?

a)

Phishing

b)

Keylogging

c)

Spoofing

d)

DDoS

e)

Sniffing

17.

Jackson needs to access important work files while traveling to different cities for meetings 🌎. What’s the best solution?

a)

Local hard drive

b)

USB flash drive

c)

External SSD

d)

Shared printer

e)

Cloud storage

18.

Rohan is tasked with setting up a test environment for his company, but he wants to avoid purchasing physical servers. Which model should he choose?

a)

SaaS

b)

VPN

c)

PaaS

d)

IaaS

e)

VM backup

19.

Aiden works at a company where employees use Office 365 and Gmail for their daily tasks. What type of service is that?

a)

IaaS

b)

PaaS

c)

SaaS

d)

Hybrid Cloud

e)

Community Cloud

20.

Mason is responsible for managing his company’s data. He needs to store sensitive information securely on-site, while making public data accessible online. What’s this setup called?

a)

Private cloud

b)

Public cloud

c)

Hybrid cloud

d)

Community cloud

e)

Dedicated hosting

21.

Maya launches a new app, but it crashes when too many users try to log in at once. What cloud concept would automatically solve this problem?

a)

Scalability

b)

Redundancy

c)

Migration

d)

Backup

e)

API

22.

Noah contacts you and says his computer is “super slow.” What’s your first diagnostic step?

a)

Replace the CPU

b)

Reinstall OS

c)

Check Task Manager for resource-heavy apps

d)

Add a new SSD

e)

Delete system files

23.

Every time Arjun installs a Windows update on his work laptop, the system starts freezing and becomes unusable. What’s a good prevention step?

a)

Disable antivirus

b)

Turn off updates

c)

Create a restore point before updates

d)

Reformat C: drive

e)

Use Safe Mode always

24.

A coworker’s monitor is suddenly sideways 😅. What’s the quick fix?

a)

Ctrl + Alt + Arrow key

b)

Update BIOS

c)

Replace GPU

d)

Remove RAM

e)

Reboot

25.

James keeps getting a “Storage full” message on his smartphone, even after deleting lots of photos. What could still be taking up space on his device?

a)

App data and cached files

b)

The wallpaper

c)

Background color

d)

Cache and temporary files

e)

SMS text

26.

Emma is using her computer and wants to change some system settings, like adjusting the display or adding a new device. True or False: Most operating systems let users like Emma make system changes.

a)

True

b)

False

27.

David is choosing a cloud provider for his company. One provider offers automatic backups and multiple data centers. What’s the advantage of this feature for David?

a)

Faster downloads

b)

More ads

c)

High availability and redundancy

d)

Smaller files

e)

Better Wi-Fi

28.

Scarlett needs to test a new software application, so she spins up a virtual machine for the task and deletes it after she's done. What’s that called?

a)

Virtualization

b)

Redundancy

c)

Sandbox

d)

Backup

e)

Snapshot

29.

Daniel is setting up a network for his small business and wants to ensure that any malicious traffic is blocked before it reaches his computers. Which device should Daniel use to inspect and filter network traffic for threats?

a)

Firewall

b)

Switch

c)

Hub

d)

Router

e)

Access point

30.

Kai is worried about losing important files if his computer suddenly stops working due to hardware failure. Which of the following is the best way for Kai to protect his files?

a)

Use a strong password

b)

Rename files frequently

c)

Regularly back up files to an external drive or cloud

d)

Store files only on your desktop

e)

Install more RAM

31.

Emma notices her laptop gets very hot and shuts down when running multiple programs. What should she check first?

a)

Battery health

b)

Wi-Fi connection

c)

Monitor resolution

d)

Cooling fan and air vents

e)

Printer driver

32.

Samuel notices that his computer has started showing unusual pop-up ads and is running much slower than usual. Which of these is a sign that Samuel's computer might be infected with malware?

a)

Improved graphics

b)

Unusual pop-up ads and slow performance

c)

Quieter fan noise

d)

Longer battery life

e)

Faster boot times

33.

Sarah is trying to use her laptop, but it won’t power on even though the charging light is lit. What should you check first?

a)

Update the operating system

b)

Check the display connection

c)

Install a new hard drive

d)

Replace the battery

e)

Change the power adapter

34.

Ava keeps getting a “Low storage” warning on her tablet, even after she deletes all her videos. What else could be using up space on her device?

a)

Wallpaper images

b)

Bluetooth settings

c)

Screen brightness

d)

Wi-Fi passwords

e)

System updates and app cache

35.

Lucas receives a text message from “BankSupport@secure-bank.com” asking for his account PIN. What type of cyber attack is this?

a)

Man-in-the-middle

b)

Phishing

c)

Spyware

d)

Brute force

e)

Ransomware