BT Group Interview Questions, Process, and Tips

As per JD, i was being offered for a security Intern role and for this job description we have following in aptitude test:
20 questions in Problem Solving assesment and included topics were : Profit and Loss, HCM and LCM, simple interest, compound interest, Number system, Time & Work, Time, speed & distance, Ratio Analysis, Set theory, Profit & Loss, Percentages and Algebra.

30 questions from Technical topics like programming, coding, security and DBMS and oops.

And 10 questions from English Proficiency and communication .

There were 2 questions from security and management and questions were related to brute force, CTF and sort of simple concepts in LINUX.

Q1. 1. Tell me something about yourself.
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Q2. 2. Why do you think that this job role suites you most.
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Q3. 3. What does CIA stand for in cyber security?
Ans. 
CIA stands for Confidentiality, Integrity, and Availability in cyber security.
• Confidentiality refers to protecting sensitive information from unauthorized access.

• Integrity ensures that data remains accurate, complete, and unaltered.

• Availability ensures that systems and data are accessible and usable when needed.

• These three principles form the foundation of a secure cyber environment.

• Example: Encrypting data to maintain...read more
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Q4. How do you find out whether a system is compromised or vulnerable?
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To determine if a system is compromised or vulnerable, conduct regular vulnerability scans and penetration testing.
• Perform regular vulnerability scans using tools like Nessus or OpenVAS

• Conduct penetration testing to simulate attacks and identify vulnerabilities

• Monitor system logs for suspicious activity

• Stay up-to-date with security patches and updates

• Use intrusion detection and prevention systems

• Perform code reviews an...read more
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Q5. What is penetration testing?
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Penetration testing is a simulated cyber attack on a computer system to identify vulnerabilities and assess security measures.
• It involves attempting to exploit weaknesses in a system's defenses

• The goal is to identify potential security risks and provide recommendations for improvement

• Penetration testing can be done manually or with automated tools

• Examples of penetration testing include network penetration testing, web ...read more
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Q6. Name some standard tools used in assessing the security of a system.
Ans. 
Standard tools for assessing system security
• Vulnerability scanners (e.g. Nessus, OpenVAS)

• Penetration testing tools (e.g. Metasploit, Nmap)

• Network analyzers (e.g. Wireshark, tcpdump)

• Log analysis tools (e.g. Splunk, ELK Stack)

• Firewall and intrusion detection systems (e.g. Snort, Suricata)
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Q7. What is your strength and weakness.
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Q8. And Atlast, What is your project and what was your contribution and how did you manage in project work and explanation of technology used in project.
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Q1. Tell me about yourself.
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Q2. Why do you want to work for our company?
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Q3. What are your greatest strengths and weaknesses?
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Q4. Why are you looking for a change?
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Q5. Tell me about the gap in your resume during 12th and college admission.
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Q6. How would you rate yourself on a scale of 1 to 10?
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Q1. Basic techno managerial questions on tech you worked on work, interests, challenges you faced. Was fairly short.
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Initially had a string based coding problem. Then was asked technical questions and then had a small break before doing system design with same interviewer for building book my show system and db schema.

Q1. Had a discussion with hiring manager on expectations, salary and growth.
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Grammar, passages, basic aptitude, and the Versant test.

Any random topic such as diversity and inclusion or your most recent birthday.

Q1. Operations round with hiring managers.
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Q2. About you, qualifications, about the companu.
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Q1. Difference between API and microservices
Ans. 
API is a set of rules and protocols for building and interacting with software applications, while microservices is an architectural style that structures an application as a collection of small, autonomous services.
• API is a communication interface that allows different software systems to interact with each other.

• Microservices is an architectural approach where an application is composed of small, independent services...read more
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Q2. What is importance of database when troubleshooting production issue
Ans. 
Database is crucial for troubleshooting production issues as it stores critical data and logs for analysis.
• Database stores important data and logs that can help in identifying the root cause of production issues.

• By querying the database, developers can track down specific transactions or events that may have caused the problem.

• Database backups can be used to restore data in case of data corruption or loss during troubl...read more
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How to invert the values of matrix from rowXcolumn to columnXrow in limited loops