Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
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
11
Which term describes the process of encoding data into an unreadable format for security?
Answer:
Encryption
Encryption is the process of encoding information or data so that only authorized parties can access it. It converts readable plaintext into ciphertext to protect sensitive information from unauthorized access.
12
Cryptography is a technique where data is secure and immune from:
Answer:
All of the above
Cryptography ensures data confidentiality (prevents unauthorized access/eavesdropping), integrity (prevents tampering), and authenticity. It makes data secure and immune from various attacks by transforming it into an unreadable format.
13
Which of the following is the metho~ by which data is converted ·trom a readabl_e forrT) to an encoded version? · • •
Answer:
Encryption
The source answer is option A (Encryption). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
14
How can the risk · of unautt1orized con,~ system access be reduced when connecte~ an internet? . . .
Answer:
By using a firewall . .
The source answer is option B (By using a firewall . .). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
15
Which menu bar selection would you access to open file? •
Answer:
Spoofing
The source answer is option B (Spoofing). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
16
Wiich is safe. to back up data in · electronic record keeping: 1 •
Answer:
Encrypt your data
The source answer is option A (Encrypt your data). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
17
What does the term 'authentication' refer to in a security context?
Answer:
Both A & B
Authentication is the process of verifying the identity of a user, device, or system.
18
Which security component is utilized in a computer network to protect a server from unauthorized access or malicious traffic?
Answer:
. Firewall
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
19
All of the following constitute security risk and possible vio.lations of-privacy except: •
Answer:
Spam ·_
The source answer is option D (Spam ·_). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
20
• Which· of the following is a 'form of Cyber Crime?
Answer:
Hacking"
The source answer is option B (Hacking"). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.