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
1
What is the primary purpose of utilizing a proxy server in a network environment?
Answer:
To provide security against unauthorised users
A proxy server acts as an intermediary between a client and the internet.
2
What term describes an individual who utilizes technical expertise to gain unauthorized access to computer systems for illegal purposes or to cause damage?
Answer:
hacker
A hacker is broadly defined as someone who uses their computer skills to gain unauthorized access to systems.
3
Which of the following options is not considered a form of biometric authentication?
Answer:
Password
Biometrics refers to the identification of humans by their physical or behavioral characteristics. Fingerprint, retina, and breath scans are physical biological traits used for authentication.
4
Which of the following is a recognized category or example of a Distributed Denial of Service (DDoS) attack?
Answer:
Cybersecurity attack
A Distributed Denial of Service (DDoS) attack is a malicious attempt to disrupt the normal traffic of a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of internet traffic.
5
Which of the following is the correct term for a complete system used to secure messages through encryption?
Answer:
Cryptosystem
A cryptosystem is a suite of cryptographic algorithms and protocols needed to implement a particular security service.
6
What term is used to describe the act of electronic trespassing or unauthorized criminal hacking?
Answer:
Cracking
Cracking refers to the unauthorized access of computer systems with malicious intent, such as stealing data, damaging files, or bypassing security measures.
7
What type of data is primarily targeted by a 'Salami attack'?
Answer:
financial data
A Salami attack is a technique where an attacker makes tiny, often undetectable changes to financial records or transactions. By accumulating these small amounts over time, the attacker can siphon off significant sums of money without triggering alarms.
8
What term describes a situation where a website becomes inaccessible to users due to an overwhelming influx of malicious traffic?
Answer:
A denial of service attack.
A Denial of Service (DoS) attack occurs when an attacker attempts to make a machine or network resource unavailable to its intended users.
9
What term is used to describe an individual who utilizes technical expertise to gain unauthorized access to computer systems for malicious purposes or data theft?
Answer:
Hacker
A hacker is broadly defined as someone who uses computer skills to overcome security measures.
10
What are the primary components or focus areas of Cyber Technology?
Answer:
All of these
Cyber technology encompasses a broad range of activities related to digital systems.