IT Quiz Questions
Questions: 16 · 10 minutes
1. When a browser uses HTTPS to connect to a website, what protection does HTTPS primarily provide?
It encrypts data in transit and helps authenticate the website connection
It prevents the website from collecting any user-entered information
It guarantees that downloaded files contain no malware
It proves that every claim on the website is accurate
2. One application has stopped responding, but the rest of the computer still works normally. What is the most targeted first troubleshooting action?
Use the operating system's task-management tool to close and restart that application
Reset the router to its factory settings
Format the computer's storage drive
Replace the computer's RAM immediately
3. A team uses an email application entirely through a web browser while the provider maintains the servers and software. Which cloud service model best describes this?
Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
A local peer-to-peer network
On-premises hardware hosting
4. An employee needs to read project files but should not be able to change or delete them. Which permission best follows the principle of least privilege?
Read-only access
Modify access
Write-only access
Full control
5. What is a primary function of an operating system?
Creating every document format used by applications
Providing internet access without network hardware
Replacing the need for application software
Managing hardware resources and providing services for applications
6. Which backup arrangement most closely follows the 3-2-1 backup principle?
Three folders containing copies on one computer's internal drive
Two copies on the same external drive and one shortcut in cloud storage
One full backup that is replaced by a new full backup each year
Three copies of the data, on two types of storage, with one copy kept off-site
7. What physical feature most clearly distinguishes a typical solid-state drive from a traditional hard disk drive?
An SSD can store only operating-system files
An SSD requires an internet connection to retain files
An SSD stores data without mechanical moving parts
An SSD uses magnetic spinning platters at a higher speed
8. A colleague needs a plain-text file containing rows and columns that can be opened by many spreadsheet programs. Which format is most suitable?
JPEG
MP3
EXE
CSV
9. Why are security updates important even when software appears to be working correctly?
They guarantee that the device will never fail
They permanently remove the need for antivirus tools
They can fix vulnerabilities that attackers might exploit
They convert all locally stored files into cloud files
10. A laptop has a strong Wi-Fi connection beside the router but a weak connection in a room separated by several thick walls. What is the most likely explanation?
The laptop's files are using too much storage space
Physical obstructions and distance are weakening the wireless signal
The router is translating the wrong domain name
The laptop's operating system has changed its file format
11. Which component provides temporary working memory that loses its contents when a computer is powered off?
Solid-state drive
RAM
CPU cache stored permanently on disk
Power supply unit
12. A website opens when you enter its IP address, but not when you enter its domain name. Which service is the most likely source of the problem?
DNS, which translates domain names into IP addresses
DHCP, which assigns local IP settings
Bluetooth, which connects nearby devices
NTP, which synchronizes system clocks
13. You receive an unexpected email claiming your account will be locked unless you click a login link immediately. What is the safest first response?
Reply to the sender and ask whether the warning is genuine
Click the link but avoid entering a password
Open the service through its official app or known web address to check the account
Forward the email to a personal account for later review
14. An attacker obtains a user's correct password, but the account also requires a one-time code from the user's authenticator app. Which protection is creating this additional barrier?
Disk defragmentation
Multi-factor authentication
File compression
Automatic IP addressing
15. In a customer database, what is the main purpose of assigning each customer record a primary key?
To encrypt every field in the record
To arrange all customers alphabetically
To uniquely identify each record
To create a backup copy of the database
16. Several devices on a home network need to send data to websites outside that network. Which device normally directs that traffic between networks?
A network switch
A local file server
A wireless keyboard receiver
A router