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
71
What is the term for a message sent automatically in response to a specific event, often used for welcome messages or order confirmations?
Answer:
Transactional email
Transactional emails are typically automated, triggered emails sent to individual recipients based on their actions, such as purchase confirmations, password resets, or welcome emails after signing up.
72
POP is associated with receiving email. What does it represent?
Answer:
POP
POP (Post Office Protocol) allows email retrieval from a server to a local device. [cite: 223, 224]
73
What is the term for an unsolicited commercial email, often sent to a large list of recipients?
Answer:
Spam
Spam specifically refers to unsolicited commercial (or sometimes malicious) emails sent in bulk. Phishing aims to steal information, malware is malicious software, and spoofing involves faking identities.
74
Which technique involves sending emails that appear to be from a legitimate source to trick recipients into giving up sensitive information?
Answer:
Phishing
Phishing specifically targets users through deceptive emails and websites, pretending to be a trustworthy entity to lure individuals into revealing personal information such as passwords and credit card details.
75
What is 'email spoofing'?
Answer:
Sending an email with a forged sender address to deceive the recipient.
Email spoofing is the creation of email messages with a forged sender address, often done to trick recipients into believing the email originated from a legitimate source, commonly used in phishing and spam.
76
Which statement correctly describes a major difference between IMAP and POP3?
Answer:
IMAP keeps emails on the server, while POP3 typically downloads them and removes from server.
The key distinction is how they handle emails on the server. IMAP synchronizes emails, keeping them on the server for access across multiple devices, while POP3 traditionally downloads emails to a single client and may delete them from the server.
77
What is the potential security risk of opening an email attachment from an unknown sender?
Answer:
It might contain malware or a virus.
Attachments from unknown or suspicious senders often contain malicious software (malware, viruses) designed to infect your computer, steal data, or cause damage.
78
What is the standard protocol for sending email from an email client to an email server?
Answer:
SMTP
SMTP (Simple Mail Transfer Protocol) is universally used for transmitting email messages between email servers and from an email client to a sending email server.
79
What does 'CC' stand for in an email application?
Answer:
Carbon Copy
CC stands for Carbon Copy, meaning that the recipients in this field receive a copy of the email, and their addresses are visible to all other recipients.
80
Which of the following is a potential risk associated with clicking on suspicious links in emails?
Answer:
Redirecting you to malicious websites that can install malware or steal credentials.
Suspicious links are often used in phishing or malware distribution campaigns. Clicking them can lead to websites designed to steal personal data, download malicious software, or exploit browser vulnerabilities.