WorksheetsCompTIA Tech+ Review - 10.21.2025
Total questions: 38
Worksheet time: 38mins
Elijah notices his laptop battery is dying fast while streaming videos. What’s the FIRST thing he should try?
Replace the motherboard
Lower screen brightness
Change CPU system files
Overclock the system
Upgrade the PSU
Grace is assembling a new computer and wants to know which component acts as the “brain” of the computer. Which one should she choose?
CPU
GPU
PSU
RAM
NVMe
Scarlett is learning about computers and comes across the term 'GUI'. What does GUI stand for?
(a)
Every time Hannah heats up her lunch in the microwave, her home Wi-Fi connection suddenly drops. What’s the likely cause?
Faulty router
Overheating cables
Interference on the 2.4 GHz band
Power surge
DHCP conflict
Evelyn is setting up a small network at home to connect her laptop, smartphone, and printer within a few meters. What type of Area Network is she creating? P (a) Area Network
David is setting up a small office and realizes he needs more wired network ports for his devices. What device should David use to expand the number of wired network ports?
Router
Bridge
Hub
Switch
Gateway
Olivia is at work and notices that she can’t connect to the office Wi-Fi, but everyone else is able to connect without any issues. What should you check first?
The router settings
The firewall
The Ethernet cable
If airplane mode is turned on
The IP lease time
Olivia is setting up a secure website for her business. She wants to make sure it uses the correct port for HTTPS. Which port should Olivia use?
(a)
Mia is setting up a web server and wants to make sure it can be accessed via HTTP. Which port should she configure for HTTP traffic?
(a)
Mason turns on his computer, and it boots up but there’s no display on the monitor. What’s a likely cause?
Faulty CPU
Corrupt OS
Missing RAM
Disconnected or bad GPU
Power surge
Oliver is setting up a new office network and notices that some devices can be powered directly through the Ethernet cables. What does PoE mean in networking?
(a)
Benjamin is setting up a new office and needs to install a basic phone line for communication. The technician suggests using POTS. POTS stands for...
(a)
Noah is deciding between buying a laptop with an SSD or one with an HDD. What’s the main advantage of SSDs over HDDs?
Faster speed and no moving parts
Cheaper storage
Higher heat tolerance
More weight
ore sound
Ava is sending sensitive information over the internet and wants to ensure that only the intended recipient can read it. What’s the main purpose of using encryption in this situation?
Increase network speed
Remove malware
Save disk space
Format drives
Protect data confidentiality
Nora receives an email that claims to be from her bank, asking her to verify her account information. What should Nora do first?
Reply for clarification
Reply for clarification
Do NOT click any links and report it
Enter your credentials carefully
Forward it to coworkers
Grace is setting up an online store and wants to ensure her customers know they are connecting to the real website. What should she use to verify the identity of her website?
Encrypt local files
Detect malware
Track browsing
Verify the identity of a website or user
Manage licenses
Kai has an old hard drive that he no longer needs and wants to make sure his data is safe. What’s the safest way for Kai to dispose of his old hard drive?
Reformat
Delete files
Physically destroy
Move data to trash
Degauss
Lily is setting up a new wireless network at her home and wants to ensure it is as secure as possible. Which wireless security standard should she choose for the strongest protection today?
WEP
WPA2
WPA
Open Wi-Fi
WPA3
Priya wants to keep her online accounts safe. What is the most secure way for her to store her passwords?
Write them in a notebook
Save in a Word file
Use a password manager
Reuse old passwords
Use a sticky notepad
Anika is setting up a small office and wants to connect several computers so they can share files and resources within the office. Which device should Anika use to connect multiple computers in a local area network?
Modem
Switch
Printer
Scanner
Monitor
Grace receives an unexpected email attachment from an unknown sender while working in her office. What is the safest action she should take?
Reply to the sender for more information
Save the attachment to your desktop
Forward the email to your IT department
Delete the email without opening the attachment
Open the attachment immediately
Samuel is working on his computer and notices that he cannot access the internet, while other devices in the house are working fine. What should Samuel check first?
Check if the network cable is properly connected
Install a new antivirus
Restart the router
Replace the hard drive
Update the operating system
Charlotte is learning about databases in her computer science class. Her teacher asks, "What does SQL stand for?"
(a)
Daniel's company wants to use both their own private servers and public cloud services to store data and run applications. Which cloud model should they choose to combine public and private resources?
Public cloud
Private cloud
Local cloud
Hybrid cloud
Community cloud
Mia is setting up a new online business and needs to rent virtual machines to run her applications. Which type of cloud service should she use?
PaaS
IaaS
SaaS
VPN
DaaS
Daniel is working for a tech company and needs to deploy several applications on the cloud. He wants each application to run independently without interfering with others. What technology should Daniel use to achieve this?
Building data centers
Running apps in isolated environments
Compressing files
Encrypting networks
Using physical servers
Emma wants to store her photos and documents online so she can access them from any device. Which type of cloud service should she use?
DaaS
VPN
SaaS
IaaS
PaaS
Lucas is building a gaming PC and needs a component to handle complex graphics processing. Which part should he focus on?
GPU
CPU
Motherboard
RAM
SSD
Sophia notices her computer is running slowly and suspects it might be due to insufficient memory. Which component should she consider upgrading?
Power Supply Unit
Keyboard
RAM
Mouse
Monitor
Ella wants to share large files between her devices at home using the fastest possible method. Which type of connection should she use?
Wi-Fi
Ethernet cable
Bluetooth
Infrared
Cellular data
Jack is worried about unauthorized access to his home Wi-Fi network. What is the best way to prevent strangers from connecting?
Disable SSID broadcast
Use a strong password and WPA3 security
Change the router's color
Move the router closer to the window
Turn off the firewall
Isabella wants to run multiple operating systems on her computer for testing purposes. Which technology should she use?
Overclocking
File compression
Encryption
Virtualization
Cloud storage
ROM stands for...
(a)
Which part of the computer temporarily stores data for the CPU to use quickly?
SSD/HDD
BIOS
CMOS
Cache
PSU
POST stands for...
(a)
What device converts __ power to __ inside a computer?
(a)
Which tool is best for safely removing dust from inside a computer?
Dry cloth towel
Hair dryer
Compressed air
Soft bristle brush
Microfiber Cloth
What is the main purpose of thermal paste?
Glue the CPU to the motherboard
Prevent dust
Block electricity
Protect pins
Improve heat transfer between CPU and cooler
