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
481
The process of reassembling packets in the correct order at the destination is handled by:
Answer:
The operating system's network stack (e.g., TCP)
Packets are given sequence numbers so that the receiving computer's TCP/IP stack can put them back in the right order.
482
DTD definition is used along with XML to specify
Answer:
The structure of XML document
A Document Type Definition (DTD) sets the structure and legal elements/attributes for an XML document.
483
Which key combination is used to refresh a webpage in most browsers?
Answer:
Ctrl + R
Ctrl + R reloads the current webpage, similar to pressing the F5 key.
484
What is fiber optic cable?
Answer:
A type of cable that uses light to transmit data
Fiber optic cables use thin strands of glass or plastic to transmit data as pulses of light, offering very high speeds over long distances.
485
What is the main advantage of a wireless network over a wired network?
Answer:
Mobility and convenience
The primary benefit of wireless networks is the ability to connect devices without physical cables, allowing for greater mobility.
486
The main page displayed when a website opens is called:
Answer:
Homepage
Homepage serves as the first point of navigation in a website structure.
487
A file server in an office is part of a:
Answer:
Client-server model
A file server is a dedicated server that provides centralized file storage for clients on the network.
488
Which software is used to search and view web pages?
Answer:
Web browser
A web browser (such as Chrome, Firefox, or Edge) is an application software specifically designed to access the World Wide Web. It allows users to retrieve, present, and traverse information resources (web pages) on the internet.
489
What is "cyberbullying"?
Answer:
All of the above
Cyberbullying is a serious problem that can have devastating consequences.
490
The concept of "surfing the internet" was coined by:
Answer:
Jean Armour Polly
In 1992, librarian Jean Armour Polly published an article titled "Surfing the INTERNET" and is credited with popularizing the term.