Top 10 Cyber security Interview Questions

In order to protect the digital world, a well-trained army of cyber-warriors must be in place to detect, and block cyber-attacks.  Cyber Security Professionals are in high demand, and there are lots of chances for those who are willing to learn new skills in order to enter the field. Our goal is to present you with the most comprehensive and practical set of cyber security interview questions available.

Cyber-attacks are all around us in the digital world, which requires a well-trained army of cyber warriors that can anticipate, identify, and mitigate threats. The demand for Cyber Security Professionals vastly outnumbers the supply, opening up exciting opportunities for anyone willing to retrain for a career in cyber security.

By the end of 2021, the cyber security labor shortage is predicted to reach 3.5 million unfilled positions, with the number of available positions doubling in the next five years. This means that cyber security specialists have a lot of job options right now. It has been said that, clearing a cyber security interview is not an easy task because being a cyber security specialist for dealing with advanced threats necessitates a greater level of understanding.

Frequently Asked Cyber Security Interview Questions 

• Define Cyber security?
• What is Cryptography?
• What are the distinctions between Threat, Vulnerability and Risk?
• What exactly is Cross-Site Scripting and how can it be avoided?
• What is the difference between an intrusion detection system (IDS) and an intrusion prevention system (IPS)?
• What is a Botnet?
• What is a CIA triad?
• What is the purpose of a firewall and how can implement?
• What is the distinction between hashing and encryption?
• What exactly is two-factor authentication and how can it be used on public websites?

Cyber Security Interview Questions and Answers

1. Define Cyber security?

Cyber security refers to the protection of internet-connected systems from cyber attacks, including software, hardware, electronic data, and so on. It is referred to as protection against unauthorized access in a computing text.

2. What is Cryptography?

Cryptography is a method of encoding and transmitting secret data in order to safeguard it from other parties who are not authorized to receive it.

3. What are the distinctions between Threat, Vulnerability and Risk?

Threat: Someone with the capability of causing harm to a system or organization by destroying or corrupting its official data.

Ex: Phishing attack

Vulnerability: It is a term that refers to flaws in a system that makes threat outcomes more likely and hazardous.

Ex: SQL injections, Cross-site Scripting

Risk: It refers to a combination of threat likelihood and impact/loss.  In basic terms, it refers to the potential for harm or loss if a threat exploits vulnerability.

Threat probability * Potential loss = Risk

4. What exactly is Cross-Site Scripting and how can it be avoided?

Cross-Site Scripting (XSS) is a type of client-side injection attack that involves injecting malicious code into a victim's web browser to execute malicious scripts.

The following practices can prevent Cross-Site Scripting:

• Encoding special characters
• Using XSS HTML Filter
• Validating user inputs
• Using Anti-XSS services/tools

5. What is the difference between an intrusion detection system (IDS) and an intrusion prevention system (IPS)?

Intrusion Detection Systems (IDS) –

• It can only detect intrusions and cannot prevent them.
• It's a surveillance system.
• The results must be reviewed by a human or another system.

Intrusion Prevention Systems (IPS)-

• It detects and prevents intrusions.
• It’s a control system.
• It needs a regularly updated database with the most up-to-date threat data.

6. What is a Botnet?

A Botnet is a collection of internet-connected devices, such as servers, PCs, and mobile phones that are affected with malware and controlled by it.

It can be used to steal information, send spam, execute distributed denial-of-service (DDoS) attacks, and more, as well as provide the user access to the device and its connection.

7. What is a CIA triad?

The CIA (confidentiality, integrity, and availability) trinity is a methodology for handling information security rules within a company.

• Confidentiality is a set of regulations that restricts that has access to information.
• Integrity assures that the data is correct and reliable.
• Availability It allows authorized users to have consistent access to data.

8. What is the purpose of a firewall and how can implement?

A firewall is a security system that controls and monitors network traffic. It protects the system/network from malware, viruses, worms, and other threats, as well as preventing unwanted access from a private network.

The following are the steps to set up and configure the firewall:

• Change a firewall device's default password.
• Disable the feature of remote administration.
• Configure port forwarding for certain applications, such as an FTP server or a web server, to work properly.
• Unless the firewall's DHCP is disabled, installing a firewall on a network with an existing DHCP server can result in issues.
• Ensure that the firewall is set up with strong security policies.

 9. What is the distinction between hashing and encryption?

Both hashing and encryption are used to transform accessible data into an unreadable format. The primary difference is that encrypted data can be transformed into original data by decryption, whereas hashed data cannot be processed back to the original data.

10. What exactly is two-factor authentication and how can it be used on public websites?

Two-factor authentication, also known as dual-factor authentication or two-step verification, requires the user to submit two authentication factors in order to safeguard both user credentials and resources.

• Two-factor authentication can be used on public websites like Twitter, Microsoft, LinkedIn, and others to provide an extra layer of security to an account that is already password-protected.
• You can easily enable double factor authentication by going to settings and then managing security settings.

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