Technology Quiz
Questions: 16 · 10 minutes
1. Your phone offers an operating-system security update, but its current features already work. Why is installing the update still important?
It permanently prevents the battery from losing capacity
It may patch vulnerabilities that attackers could exploit
It guarantees compatibility with every future application
It converts all locally stored files into cloud backups
2. An email claims your account will be closed today unless you follow a link and enter your password. What is the safest first response?
Reply to the sender and ask whether the warning is genuine
Follow the link but inspect the page before entering the password
Open the service through its official app or typed web address and check the account there
Forward the email to a friend to see whether the link works for them
3. A speech-recognition system works well for accents common in its training examples but poorly for an accent that was rarely represented. What should developers investigate first?
Whether users have high-resolution displays
Whether the training data adequately represents the affected accent
Whether the audio files are stored in alphabetic order
Whether the interface uses a light or dark color theme
4. What is the primary role of a computer's central processing unit (CPU)?
To preserve files when the computer has no power
To convert every network signal directly into a wireless signal
To display images without help from other components
To execute program instructions and coordinate processing operations
5. In computing, what is an algorithm?
A defined sequence of steps for solving a problem or completing a task
A measurement of how quickly a network transfers data
A physical component that stores program files
A programming error caused specifically by faulty hardware
6. You want to protect important files if your laptop is stolen or ransomware encrypts folders synchronized to the cloud. Which plan is strongest?
Keep the files in a second folder on the same laptop
Rely only on automatic synchronization with one cloud folder
Maintain separate, versioned backups, including one offline or otherwise isolated copy
Email the most important files to yourself once
7. You try to copy a 2 GB video file to a storage device that has only 500 MB of free space. Why will the copy most likely fail?
The video file must be connected to the internet before it can be copied
The destination device has a slower transfer speed than the source device
The destination device does not have enough available storage capacity
Video files cannot be transferred between different storage devices
8. A colleague cannot open a document because it was saved in a format supported only by your specialized application. What is the best way to improve interoperability?
Rename the file extension to one their software recognizes
Place the unchanged file in a ZIP archive
Upload the unchanged file to a different cloud folder
Export or save a copy in a widely supported format that preserves the needed content
9. Why is binary commonly used in digital computers?
Binary makes every stored file smaller than any other representation
Electronic circuits can reliably represent and distinguish two states
Computer displays can produce only black and white pixels internally
Internet addresses are required to contain only zeros and ones
10. Several devices in a home need to share one internet connection and communicate on the local network. Which device normally manages that traffic?
A monitor
A solid-state drive
A printer server
A router
11. A team edits documents through a web service, and the files are processed and stored on remote provider-managed servers. Which concept best describes this arrangement?
Cloud computing
Analog processing
Local-only computing
Peer-to-peer cabling
12. What does HTTPS primarily add when you communicate with a website?
A guarantee that every statement on the website is accurate
Encryption and authentication for data sent between the browser and website
Automatic removal of advertisements and tracking cookies
Permanent storage of the website on your device for offline use
13. When you enter a domain name such as example.com, what role does the Domain Name System usually perform?
It scans the website and certifies that its content is trustworthy
It compresses the website before sending it to the browser
It helps translate the domain name into the IP address needed to locate the service
It creates a permanent local copy of every visited page
14. You need to send a large photograph over a slow connection, and a small reduction in image quality is acceptable. Which approach is most suitable?
Use lossy compression at an appropriate quality setting
Encrypt the image without changing its size
Use lossless compression that preserves every original detail
Add more metadata to the file
15. What does it generally mean when software is described as open source?
It can run only while connected to the public internet
It is always free of charge and has no license conditions
Anyone may change it without following any rules or attribution requirements
Its source code is available under a license that permits specified forms of inspection, use, or modification
16. A laptop becomes sluggish when many applications and browser tabs are open, but it has plenty of disk space. Which upgrade would most directly help?
More RAM
A larger external storage drive
A higher-resolution display
A faster internet subscription