Cyber Security Interview Questions and Answers

Cyber Security Interview Questions and Answers

Cyber Security Interview Questions and Answers for freshers experienced professionals.

Cyber security (computer security or IT security) is the protection of computer from the theft and damage to their hardware, software data or personal information, as well as from disruption or misdirection of the services they provide. Cyber security refers to the body of technologies, processes, and practices designed to protect networks, devices, programs, and data from attack, damage, or unauthorized access.

Cyber security is most important because government, military, corporate, financial, and medical organizations collect, process, and store unprecedented amounts of data on computers and other devices. A significant portion of that data can be sensitive information, whether that be intellectual property, financial data, personal information, or other types of data for which unauthorized access or exposure could have negative consequences.

Organizations transmit sensitive data across networks and to other devices in the course of doing businesses, and cyber security describes the discipline dedicated to protecting that information and the systems used to process or store it. As the volume and sophistication of cyber-attacks grow, companies and organizations, especially those that are tasked with safeguarding information relating to national security, health, or financial records, need to take steps to protect their sensitive business and personnel information. As early as March 2013, the nation’s top intelligence officials cautioned that cyber-attacks and digital spying are the top threat to national security, eclipsing even terrorism.

According to Forbes, the world cybersecurity market is expected to reach 170 billion by 2020. This rapid market growth is being fueled by an array of technology trends, including the onslaught of initiatives with ever-evolving security requirements, like bring your own device(BYOD) and the internet of things (IoT); the rapid adoption of cloud-based applications and workloads, extending security needs beyond the traditional data center; and stringent data protection mandates, such as the European Union’s General Data Protection Regulation and the National Institute of Security Technology (NIST) Cybersecurity Framework.

Different areas of Cyber Security’ are:

  • Information Security
  • Network Security
  • Wireless Security
  • Application Security
  • Data security
  • Cloud security
  • Mobile security
  • Endpoint security
  • Hardware security
  • Database and infrastructure security
  • End-user education
  • Disaster recovery

What is Cyber Security?

What is the main goal of information security within an organization or company?

What are the consequences of a cyber-attack?

What is the Cross site scripting (XSS)?

What is DOM-based XSS?

What can you defend yourself from Cross Site Scripting attack (XSS)?

What is the difference between a vulnerability, and a risk?

What is the difference between a threat and an exploit?

What’s the one thing that you have found that contributes the most to software security risks?

What is difference the between Black box testing and White-Box testing?

What is the difference between Encoding and Hashing and Encryption?

What is Botnet?

What is a DDoS attack?

What is an SQL injection?

What is open source software?

Which is more secure? An open source project or a proprietary project?

What is Cryptography?

What is the difference between Symmetric Key Cryptography and Public Key Cryptography?

What is Salting?

What is Password salting?

What is Traceroute?

What is the difference between Vulnerability Assessment (VA) and Penetration testing (PT)?

What is a Honeypot?

What is Residual Risk?

What are the different ways in which the authentication of a person can be performed?

What are the techniques used in preventing a brute force login attack?

What are the major first steps for securing your Linux server?

What is the need for DNS monitoring?

What is the Three-way handshake? How can it be used to create a DOS attack?

What is a False positive and False negative in case of IDS?

What is the Chain of Custody?

What is Black hat, White hat, and Gray hat Hackers?

What is Exfiltration?


What is Data exfiltration?

What is CSRF?

What is misconfiguration?

How can you defend yourself against CSRF attacks?

What is Home Network?

What is HTTPs? Is it more secure than HTTP?

What is SSL and TLS?

What are the common HTTP attacks?

What is HIDS?

What is the website Architecture?

What is Data Leakage?

What are the useful certification for security analyst?

What is WEP cracking?

What are the techniques used to prevent web server attacks?