Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
581
HTML and XML are markup languages
Answer:
Are based on SGML
Both HTML and XML derive from the SGML standard.
582
Which of the following is considered the first web browser?
Answer:
Nexus
The first web browser was created by Sir Tim Berners-Lee in 1990 and was called WorldWideWeb. To avoid confusion with the World Wide Web itself, it was later renamed Nexus. It was the first browser that also functioned as a web editor.
583
A \_\_ organizes the web into categories.
Answer:
Directory
A web directory categorizes websites by subject matter, allowing users to browse for information in an organized way.
584
Which of the following is an example of a wired network technology?
Answer:
Ethernet
Ethernet is the most common technology for creating wired local area networks (LANs).
585
What does it mean to "clear your cookies"?
Answer:
To delete all the cookies that are stored on your computer
Clearing your cookies can help to protect your privacy, but it will also log you out of websites and reset your preferences.
586
The first version of Internet Explorer was released in:
Answer:
1995
Microsoft released the first version of Internet Explorer in 1995 as part of the Plus\! pack for Windows 95.
587
How is a computer virus most commonly transmitted to your hard disk?
Answer:
By opening emails
Opening infected email attachments is a common way viruses spread to computers.
588
What technique is used to track a user's repeat visits to a website?
Answer:
Cookies
Cookies are small pieces of data stored on a user's computer by their web browser while browsing a website. They are designed to be a reliable mechanism for websites to remember stateful information or to record the user's browsing activity, including tracking repeat visits.
589
What type of cable is typically used to connect devices to a switch, hub, or router?
Answer:
Ethernet cable
Ethernet cables (such as Cat5e or Cat6) are the standard for wired LAN connections.
590
In the URL [http://www.prenhall.com](http://www.prenhall.com/), the term "http" represents the:
Answer:
Protocol
HTTP (HyperText Transfer Protocol) specifies how data is transferred across the web.