Xrg Consulting Security Analyst Interview Questions and Answers

Q1. Explain linux kernel
Ans. 
The Linux kernel is the core component of the Linux operating system, managing hardware and system resources.
• Monolithic architecture: The Linux kernel is monolithic, meaning it includes all essential services in one large block of code.

• Process management: It handles process scheduling, multitasking, and inter-process communication.

• Memory management: The kernel manages system memory, including allocation and deallocatio...read more
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Q2. Explian AES and dec
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AES (Advanced Encryption Standard) is a symmetric encryption algorithm used for securing data.
• AES operates on fixed block sizes of 128 bits and supports key sizes of 128, 192, or 256 bits.

• It uses a series of transformations including substitution, permutation, and mixing of input data.

• AES is widely used in various applications, including securing communications over the internet (e.g., HTTPS).

• The algorithm is efficient...read more
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Q1. If a website uses only HTTPS, is it 100% secure? Why or why not?
Ans. 
HTTPS enhances security but does not guarantee 100% protection against all threats.
• HTTPS encrypts data in transit, protecting it from eavesdropping.

• It does not prevent attacks like phishing, where users are tricked into revealing credentials.

• Vulnerabilities in the website's code can still be exploited, regardless of HTTPS.

• Man-in-the-middle attacks can occur if the user is on an insecure network.

• SSL/TLS certificates can...read more
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Online Coding Test included some aptitude questions, technical questions followed by 3 coding questions

Q1. My technical interview included an introduction about myself followed by my background, projects I've made, internships I've done, and in which language I was comfortable. and the interviewer asked me to w...read more
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In this round you have to clear Aptitude and Basic Coding

It is pure coding test which is conduct on hacker rank platform. You have to complete 4 question(1 easy + 2 medium + 1 hard)

Q1. Coding question base on Sorting and Array
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Q2. Some of theory question base on your Project technology and DSA
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Q1. Tell me about yourself.
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Q1. Find the duplicate items in the array.
Ans. 
Find duplicate items in array of strings.
• Iterate through array and store each item in a hash set.

• If item already exists in hash set, it is a duplicate.
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Q1. Javascript basics questions
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Q1. Questions on dsa, 2 medium and 1 easy level.
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Q2. Questions related to the projects.
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