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
1
What does CC stand for?
Answer:
Carbon Copy
In the context of email, CC stands for Carbon Copy. The term originates from the use of carbon paper to make copies of documents. Sending a 'CC' sends a copy of the email to recipients other than the primary one listed in the 'To' field, and all recipients can see who received the copy.
2
What does the abbreviation BCC mean when sending an email?
Answer:
Blind Carbon Copy
BCC stands for Blind Carbon Copy. When you add a recipient to the BCC field of an email, they receive a copy of the message, but their email address is hidden from all other recipients in the To, Cc, and BCC fields.
3
What is junk e-mail also called?
Answer:
spam
Junk e-mail is more commonly known as spam. This term refers to unsolicited and unwanted electronic messages sent in bulk to a large list of recipients, typically for commercial advertising, phishing, or spreading malware.
4
What facilitates the exchange of messages in an email system?
Answer:
Network
For an email system to function, a network is essential. The network (typically the Internet) provides the communication pathways for email messages to travel from the sender's mail server to the recipient's mail server, enabling the exchange of messages across geographical distances.
5
Where do you put email addresses of individuals who should receive a copy of a message but remain hidden from other recipients?
Answer:
Recipient's email
To send a copy of an email to someone while keeping their address hidden from other recipients, you use the Bcc (Blind Carbon Copy) field. This is the correct place within the recipient's email section to add their address for private copying.
6
What term describes unwanted, repeated messages like bulk emails sent without consent?
Answer:
Spam
Spam is the term used for unsolicited digital communication, most commonly email, sent in bulk. These messages are sent without the recipient's consent and are often for commercial purposes, but can also be malicious.
7
Which is a first-generation cellular phone system?
Answer:
AMPS
Advanced Mobile Phone System (AMPS) was the analog mobile phone system standard developed in the 1980s, representing 1G technology.
8
What is the main advantage of end-to-end encryption for email communication?
Answer:
It ensures that only the sender and intended recipient can read the message.
End-to-end encryption guarantees that the message is encrypted from the moment it leaves the sender's device until it reaches the recipient's device, making it unreadable to any intermediaries, including email providers.
9
What is the common term for the practice of sending emails with the intention of spreading false information or rumors?
Answer:
Hoax
A hoax, in the context of email, refers to a deceptive message that aims to mislead or trick recipients, often by spreading false alarms, chain letters, or urban legends. Spam is unsolicited commercial mail, phishing seeks data, and spoofing fakes identities.
10
The carrier for intra-LATA services is:
Answer:
LEC
A Local Exchange Carrier (LEC) is a telephone company that provides services within a LATA.