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
4071
What network paved the way for the modern internet?
Answer:
ARPANET
ARPANET (Advanced Research Projects Agency Network) was a pioneering packet-switching network and the first network to implement the TCP/IP protocol suite. Funded by the United States Department of Defense, it served as the technical foundation and backbone for what would eventually evolve into the global Internet.
4072
Which network would be used to connect computers in different countries?
Answer:
WAN
A WAN is the only type of network that can connect computers across international borders.
4073
Which network provides a more consistent speed?
Answer:
Wired network
A wired network is not subject to the same fluctuations in signal strength and interference as a wireless network, so it provides a more consistent speed.
4074
Which of the following is not part of a URL?
Answer:
End tag
A URL typically includes the protocol (e.g., http), the server or domain name (e.g., [www.example.com](https://www.example.com)), and an optional path to a specific file or page (e.g., /folder/page.html). An "end tag" (like `</p>`) is an element of HTML code, not a component of a URL.
4075
The "Evernote Web Clipper" is a browser extension that allows you to:
Answer:
All of the above
The Evernote Web Clipper is a popular tool for saving and organizing information from the web.
4076
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.
4077
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.
4078
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.
4079
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.
4080
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.