Introduction to Information Technology · Unit 11 · 3 hrs
Computer Security
Exam-focused notes for Computer Security (Introduction to Information Technology, CSC114): what the TU syllabus asks and how it has actually been tested, with 8 solved past questions from this unit.
What this unit covers
- Introduction
- Security Threat and Security Attack
- Malicious Software
- Security Services
- Security Mechanisms (Cryptography, Digital Signature, Firewall, Users Identification and Authentication, Intrusion Detection Systems)
- Security Awareness
- Security Policy
Security Awareness
Explain security awareness and security policy in brief. [5]
Security awareness refers to the knowledge, attitude, and understanding that members of an organization possess regarding the protection of the information and assets of that organization. It involves educating and training users about: - Potential threats ...
Full solved answer →Security Mechanisms
Define cryptography. Why do we use firewall? [5]
--- Cryptography is the art of protecting information by transforming it (encrypting it) into an unreadable format called cipher text. - Only those who possess a secret key can decrypt the message back into readable plain text. - It is used as a core securi...
Full solved answer →What is firewall? How firewall is used to secure computer systems? [5]
A firewall is a network security system (either hardware-based, software-based, or both) that monitors and controls incoming and outgoing network traffic based on a set of predefined security rules. It acts as a barrier (or "wall") between a trusted interna...
Full solved answer →What is cryptography? How does cryptography provide security to our data? [5]
Cryptography is the art of protecting information by transforming it (encrypting it) into an unreadable format called cipher text. Only those who possess a secret key can decrypt the message back into readable plain text. In simple terms, cryptography conve...
Full solved answer →Security Threat and Security Attack
Differentiate security attack for security threat. How virus affects computer? [5]
--- Basis Security Threat Security Attack --------- Definition A security threat is a possibility of danger that might harm the vulnerability of a computer system and break the security to cause damage. A security attack is an actual attempt to obtain, alte...
Full solved answer →Malicious Software
What is malicious software? How virus differs from worms? [5]
Malicious software (Malware) refers to various forms of harmful software designed to damage, disrupt, or gain unauthorized access to computer systems. It is any software that is intentionally created to cause harm to a computer, server, network, or user. At...
Full solved answer →What is malicious software? How virus differs from worms? [5]
Malicious software (Malware) refers to various forms of harmful software designed to damage, disrupt, or gain unauthorized access to computer systems. It is any software that is intentionally created to cause harm to a computer, server, network, or its user...
Full solved answer →Security Services
Define each of the terms confidentiality, integrity, and authentication. [5]
Confidentiality is the security property that allows only authorized users to access sensitive and protected data. It ensures that unauthorized users are blocked from viewing or obtaining information they are not permitted to access. - In simple terms, conf...
Full solved answer →Make Unit 11 stick
Practice CSC114 with flashcards & quizzes