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WorksheetsCompTIA Tech+ Exam Review - 10.20.2025
Total questions: 35
Worksheet time: 53mins
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?
Replace the hard drive
Update the BIOS
Check if the RAM is properly seated
Install a new GPU
Replace the power supply
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?
Replace the router
Reinstall the operating system
Update the network card driver
Reset the TCP/IP stack
Check if the Wi-Fi is turned on
During long Zoom calls, Noah notices that his computer keeps shutting down randomly. What’s the most likely cause?
Malware
Overheating
Faulty SSD
Outdated browser
Insufficient RAM
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?
First Name
Last Name
Student ID
Grade Level
Class Name
During a thunderstorm, your office loses power, but your computer stays on for 5 minutes before shutting down. What saved it?
Surge protector
Generator
UPS
Power inverter
Power strip
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?
DNS server settings
Network permissions
The router’s firewall
Static IP conflicts
Windows version
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?
The physical components of the computer
The games and programs we use on the computer
The product we create on the computer
The computer
The code that controls the OS
Jackson is at a computer store upgrading his PC. He picks up several components, as shown in the picture. What do these components illustrate?
Desktop tower
Motherboard
Hard Disk Drive (HDD)
RAM
PSU
Grace is trying to print her report, but her printer keeps printing random symbols like “#@!@” instead of the actual content. Why is this happening?
Depleted ink
Wrong printer driver installed
Paper jam
Malware infection
Printer overheating
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?
Guest network
Port forwarding
Static IPs
MAC filtering
VPN tunnel
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?
Wrong password
Outdated firmware
ISP throttling
Metal blocks radio signals
Michael is managing a school’s SQL database and accidentally deleted all student data 😱. Which command would’ve prevented this if used?
INSERT
DROP
BACKUP
UPDATE
GRANT
Nora receives an email from “ITSupport@Micros0ft.com” asking for her password. What attack is this?
Keylogging
Spoofing
Phishing
SQL injection
Denial of Service
A coworker clicks a suspicious link, and their files are now renamed with “.locked.” What’s this?
Virus
Trojan
Worm
Ransomware
Rootkit
Priya is setting up her home Wi-Fi and wants to secure her router login. Which is the strongest password she can choose?
password123
mywifi
router2024
admin
8$Rk!9pQz#1A
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?
Phishing
Keylogging
Spoofing
DDoS
Sniffing
Jackson needs to access important work files while traveling to different cities for meetings 🌎. What’s the best solution?
Local hard drive
USB flash drive
External SSD
Shared printer
Cloud storage
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?
SaaS
VPN
PaaS
IaaS
VM backup
Aiden works at a company where employees use Office 365 and Gmail for their daily tasks. What type of service is that?
IaaS
PaaS
SaaS
Hybrid Cloud
Community Cloud
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?
Private cloud
Public cloud
Hybrid cloud
Community cloud
Dedicated hosting
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?
Scalability
Redundancy
Migration
Backup
API
Noah contacts you and says his computer is “super slow.” What’s your first diagnostic step?
Replace the CPU
Reinstall OS
Check Task Manager for resource-heavy apps
Add a new SSD
Delete system files
Every time Arjun installs a Windows update on his work laptop, the system starts freezing and becomes unusable. What’s a good prevention step?
Disable antivirus
Turn off updates
Create a restore point before updates
Reformat C: drive
Use Safe Mode always
A coworker’s monitor is suddenly sideways 😅. What’s the quick fix?
Ctrl + Alt + Arrow key
Update BIOS
Replace GPU
Remove RAM
Reboot
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?
App data and cached files
The wallpaper
Background color
Cache and temporary files
SMS text
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.
True
False
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?
Faster downloads
More ads
High availability and redundancy
Smaller files
Better Wi-Fi
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?
Virtualization
Redundancy
Sandbox
Backup
Snapshot
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?
Firewall
Switch
Hub
Router
Access point
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?
Use a strong password
Rename files frequently
Regularly back up files to an external drive or cloud
Store files only on your desktop
Install more RAM
Emma notices her laptop gets very hot and shuts down when running multiple programs. What should she check first?
Battery health
Wi-Fi connection
Monitor resolution
Cooling fan and air vents
Printer driver
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?
Improved graphics
Unusual pop-up ads and slow performance
Quieter fan noise
Longer battery life
Faster boot times
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?
Update the operating system
Check the display connection
Install a new hard drive
Replace the battery
Change the power adapter
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?
Wallpaper images
Bluetooth settings
Screen brightness
Wi-Fi passwords
System updates and app cache
Lucas receives a text message from “BankSupport@secure-bank.com” asking for his account PIN. What type of cyber attack is this?
Man-in-the-middle
Phishing
Spyware
Brute force
Ransomware
