National Informatics Centre Interview Questions and Answers

Q1. BGP commands Vlan configuration
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Reverse the string, Reverse of an array, Data base related queries

Q1. Introduce Yourself
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I am a passionate Java Full Stack Developer with a strong foundation in Java, Spring, and front-end technologies like React.
• Educational Background: I hold a degree in Computer Science, where I developed a solid understanding of software development principles.

• Technical Skills: Proficient in Java, Spring Boot for backend development, and React for building dynamic user interfaces.

• Project Experience: Developed a full-sta...read more
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Q2. What are types of cyber attacks
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Types of cyber attacks include malware, phishing, ransomware, DDoS attacks, and social engineering.
• Malware: malicious software designed to damage or gain unauthorized access to a computer system.

• Phishing: fraudulent attempts to obtain sensitive information by disguising as a trustworthy entity.

• Ransomware: malware that encrypts a user's files and demands payment for their release.

• DDoS attacks: flooding a network or serv...read more
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Q3. How to mitigate MITM attack
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To mitigate MITM attacks, use encryption, implement secure communication protocols, and verify server certificates.
• Use encryption to protect data in transit

• Implement secure communication protocols like HTTPS

• Verify server certificates to ensure the authenticity of the server

• Use VPNs for secure remote access
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Q4. Develop a RAT using MSF
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Develop a Remote Access Trojan (RAT) using Metasploit Framework (MSF)
• Use Metasploit Framework to create a payload for the RAT

• Set up a listener to receive connections from the compromised machines

• Utilize post-exploitation modules in MSF for advanced functionality

• Ensure proper evasion techniques to avoid detection by antivirus software
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Q5. Describe OSI model
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The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.
• The OSI model stands for Open Systems Interconnection model.

• It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and communicates with the adjacent layers.

• Example: When you send an email, t...read more
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Q1. Linux distributions
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Q2. Linux networking
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Q1. General knowledge
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Q2. Simple question
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Q3. Science Technology
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Q4. Health care and Insurance
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Q1. What is server hardening?
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Server hardening is the process of securing a server by reducing its attack surface and minimizing vulnerabilities.
• Server hardening involves configuring the server to reduce the risk of unauthorized access, data theft, and other security threats.

• This can include installing security patches and updates, disabling unnecessary services and ports, and implementing access controls.

• Examples of server hardening measures inclu...read more
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Q2. Which is the default Mysql port
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The default Mysql port is 3306.
• Mysql uses port 3306 by default for communication.

• The port number can be changed in the configuration file.

• To connect to a Mysql server, the client must specify the correct port number.
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Q3. What is ssh? What is ssl?
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SSH is a secure network protocol used for remote access to servers. SSL is a security protocol used for secure communication over the internet.
• SSH stands for Secure Shell and is used for secure remote access to servers

• SSH uses encryption to secure the communication between the client and server

• SSL stands for Secure Sockets Layer and is used for secure communication over the internet

• SSL uses encryption to secure the com...read more
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Q1. What is Logical volume management?
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Logical Volume Management (LVM) is a method of allocating space on mass storage devices that allows for flexible partitioning.
• LVM allows for the creation of logical volumes that can span multiple physical disks.

• It provides features such as resizing volumes on-the-fly and creating snapshots for backups.

• LVM is commonly used in enterprise environments to manage large amounts of data.

• Examples of LVM tools include pvcreate,...read more
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Q2. What are the security measures you will take to secure server
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I will implement various security measures such as firewalls, access controls, regular updates, and backups.
• Install and configure firewalls to prevent unauthorized access

• Implement access controls to restrict access to sensitive data

• Regularly update software and operating systems to patch vulnerabilities

• Perform regular backups to ensure data can be restored in case of a security breach
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CRUD operations in a known programming language.

Q1. Arrays & Strings explanation
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Arrays & Strings are data structures used to store multiple values in a single variable.
• Arrays store multiple values of the same data type in a contiguous memory location.

• Strings are arrays of characters used to represent text.

• Example: int[] numbers = {1, 2, 3}; String name = 'John';
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Q2. Cors origin and security & hashing techniques & cross site forgery & sql injection
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