Questions and Answers
What is the primary purpose of Cryptography?
What does the CIA triad stand for in cybersecurity?
What is the main function of an Intrusion Detection System (IDS)?
Which of the following best describes Asymmetric encryption?
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In cybersecurity, what does the term 'availability' in the CIA triad refer to?
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What is the difference between an Intrusion Detection System (IDS) and an Intrusion Prevention System (IPS)?
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Why is certification important in Cybersecurity?
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Which statement is true regarding Symmetric encryption?
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What is the primary purpose of data integrity in cybersecurity?
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How does encryption differ from hashing?
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What is the main function of a firewall in network security?
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What distinguishes a Vulnerability Assessment from a Penetration Test?
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What are the HTTP response codes for successful requests?
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What is the purpose of the three-way handshake in TCP/IP networking?
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What does a traceroute tool primarily help identify?
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What is the difference between HIDS and NIDS in cybersecurity?
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Study Notes
Cybersecurity Overview
- Cyber Security remains resilient amid IT recessions, with strong demand for skilled professionals.
- Competition is high, necessitating excellence to secure job positions.
- Skill proficiency and interview performance are both crucial for success in Cybersecurity roles.
Interview Preparation Structure
- The interview preparation is categorized into five parts:
- Theoretical Cybersecurity Interview Questions
- Scenario-Based Cybersecurity Interview Questions
- Interview Questions for Beginners
- Interview Questions for Intermediates
- Interview Questions for Experienced professionals
Key Theoretical Cybersecurity Questions
- Cryptography: Study of techniques securing information and communication to protect data from unauthorized access.
- Symmetric vs. Asymmetric Encryption: Key distinction between these encryption methods focuses on key usage in encryption and decryption.
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IDS vs. IPS:
- IDS (Intrusion Detection System): Detects intrusions for administrator intervention.
- IPS (Intrusion Prevention System): Detects and automatically acts to prevent intrusions.
CIA Triad
- Confidentiality: Ensuring information is accessible only to authorized individuals and is protected through encryption.
- Integrity: Ensuring data remains unaltered and accurate, with restitution measures for unauthorized changes.
- Availability: Data must be retrievable and operational at all times, supported by proper maintenance and backup strategies.
Encryption and Hashing
- Encryption: Transforms readable data into unintelligible formats with the ability to revert through decryption.
- Hashing: Converts data into a fixed-size string of characters; cannot be reversed to original data.
Firewalls
- Definition: A network security system that monitors and controls incoming and outgoing network traffic.
- Purpose: Protects against malicious entities like viruses and malware and manages remote access and content filtering.
Vulnerability Assessment vs. Penetration Testing
- Vulnerability Assessment (VA): Identifies and prioritizes flaws within a system that are known and acknowledged.
- Penetration Testing (PT): Proactively tests the system to discover undisclosed vulnerabilities despite existing security measures.
Networking Concepts
- Three-Way Handshake: Essential TCP/IP connection establishment method involving three steps of packet exchange between client and server.
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Response Codes in Web Applications:
- 1xx: Informational
- 2xx: Success
- 3xx: Redirection
- 4xx: Client-Side Error
- 5xx: Server-Side Error
Traceroute
- Tool used to trace the path of packets across networks, identifying each router the packet passes through.
- Commonly utilized to detect connection interruptions or failures.
HIDS vs. NIDS
- HIDS (Host Intrusion Detection System): Monitors individual host systems for malicious activities.
- NIDS (Network Intrusion Detection System): Monitors network traffic for suspicious activities across the network.
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Description
Prepare for your Cyber Security job interviews with our compilation of top interview questions and answers. With the increasing demand and competition in the IT sector, mastering these questions could be key to securing a position in the field. Skills and certifications are essential, but knowing how to present them effectively in an interview is crucial.