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
4161
What is the primary purpose of browser cookies?
Answer:
To store small pieces of data on your computer to remember information about you
Cookies are used for things like remembering your login information, shopping cart contents, and website preferences.
4162
What is the main purpose of a packet's Time To Live (TTL) field?
Answer:
To prevent packets from circulating indefinitely in the network
The TTL is a value that is decremented by each router. If it reaches zero, the packet is discarded, which prevents routing loops from consuming all network resources.
4163
What are the risks of sexting?
Answer:
All of the above
It is important to be aware of the risks before you engage in sexting.
4164
Which network requires each device to have a Network Interface Card (NIC)?
Answer:
Both
All devices that connect to a network, whether wired or wireless, need a NIC (or a wireless adapter) to handle the communication.
4165
What is a "sitemap"?
Answer:
A file that lists all the pages on a website and provides information about them
Sitemaps help search engines to more intelligently crawl a website.
4166
A ping time of 20 ms refers to:
Answer:
Latency
Ping is a utility used to measure the round-trip time (a form of latency) for messages sent from the originating host to a destination computer.
4167
What is the "Cache-Control" HTTP header?
Answer:
A header that specifies the caching policy for a resource
The Cache-Control header is an important tool for controlling how browsers and other caches handle your website's resources.
4168
Which of these Internet facilities include email, remote login, and file transfer?
Answer:
Email, remote login, and file transfer
These are common Internet services used by users.
4169
You can organize your bookmarks using:
Answer:
Folders
Bookmarks can be organized into folders for easier management and access in web browsers.
4170
What is "catfishing"?
Answer:
The process of luring someone into a relationship by means of a fictional online persona
Catfishing can be a very hurtful and damaging experience.