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cyber security interview questions

You are right place, If you are looking for Cyber Security Interview Questions and answers, get more confidence to crack interview by reading this questions and answers we will update more and more latest questions for you…

1. What is Cyber Security?

Cyber security is the method to protect the network, devices and all the data from attack or unauthorized access

2. What is the difference between encryption and hashing?

The main difference between them is Encryption is reversing and it ensures confidentiality whereas the hashing is irreversible. It can be cracked by using rainbow tables and hashing ensures integrity.

3. What is CSRF?

CSRF stands for Cross-Site Request Forgery.  It is a web application Vulnerability in which servers do not check whether the request came from a trusted client or not.

4. What is a Firewall?

A firewall is a system uses to prevent unauthorized access in the system. It blocks or allows traffic as per the set of rules. It is also possible to implement a firewall in both hardware and software.

5. What is the difference between Black hat, White Hat and Grey hat Hacker?

 Black hat hackers are those who hack the data or computer System without access to the owner. White Hat hackers are those who hack with the access of the owners and to check the strength of the computer system or organization. Grey hat hackers are the intermediate of white hat hackers and black hat hackers

6. What is CIA Triangle?

Confidentiality: It means to keep the information secret.

 Integrity: Integrity relates to maintaining the data unaltered

Availability: Availability relates to information available to authorized parties at all times

7. What are HIDS and NIDS?  Which one is better to choose?

HIDS stands for Host Intrusion Detection System. HIDS is capable of monitoring and analyzing the internals of a computing system.

NIDS stands for Network Intrusion Detection System. NIDS is a system which attempts to detect all the hacking activities on a computer network. Both the system work on the same line. It is just the placement difference only

Among the two, NIDS is preferred because NIDS is easy to manage and consume less processing power compared to HIDS

8. What is the difference between cyber security and ethical hacking?

Cyber Security main role is to secure the system connected to a network. There are various methods to protect the back end system from cyber crime.

Ethical hacking is the profession to find the vulnerabilities of the various systems. They use a tool and identify the threats to a system or computer.

9. What is Penetration Testing?

Penetration Testing also called Pen Testing. It is practiced in identifying the security of the system with authorized access

10. What is Port Scanning?

Port scanning is one of the technique to identify all the open ports and services available on a host. They are many port scanning methods available. Some of them are

  1. TCP connect
  2. UDP
  3. Stealth Scanning
  4. TCP Half Open
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11. What is OSI Model and what are the different types of OSI Models?

OSI stands for Open System Interconnection. It is the reference to how the various applications communicate over a network. It is mainly used for various types of network hardware and software to communicate.

There are seven layers in the OSI model.

  1. Physical Layer
  2. Data link Layer
  3. Network Layer
  4. Transport Layer
  5. Session Layer
  6. Presentation Layer
  7. Application Layer

12. What is the difference between the Risk, Vulnerabilities, and threat in a Network?

Threat: Threat means someone who tries to harm the organization or the system

Vulnerability: Vulnerability refers to a weakness in a system can be exploited by a potential hacker.

Risk: Risk means potential for loss when threat exploits a vulnerability

13. What is a MITM attack?

MITM stands for Man-in-the-middle attack. In this method, the hacker places himself between the communication between the two parties and hack the information. To protect the MITM Attack, you can use the following method to prevent attacks. They are

  1. Use VPN
  2. Use of strong WEP/WPA encryption
  3. Force HTTPS
  4. Public Key pair Based Authentication

14. What is Phishing and how to prevent it?

Phishing is a cyber attack in which hackers try to steal sensitive and financial information.

Ex; usernames and passwords

Phishing can be prevented by following ways

  1. Use firewall
  2. Use antivirus in the systems
  3. Don’t enter the sensitive information on untrusted sites

15. What is SQL Injection?

The SQL injection is a code injection technique to destroy all the data. This method is common in web hacking techniques. It is a placement of malicious code in the web page input.

SQL Injection attack is prevented by various methods

Use prepared statements

Use stored procedures etc.

16. What is Social Engineering?

Social engineering is an attack which relies on human interactions to involve the manipulating the people and breaking the normal security procedures and systems and steal the data

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