InstaReM Interview Questions and Answers

Q1. Skill knowledge
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Q2. Practical skill testing
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Q1. Salary discussion
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Q2. Company rules
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Q1. Every day to day updates
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Q2. Willing to learn and teach
Ans. 
Yes, I am willing to learn new skills and knowledge, and also share my expertise with others.
• I am always eager to expand my skill set and knowledge through training and development opportunities.

• I am also willing to share my expertise with colleagues and assist them in learning new tasks or processes.

• For example, I recently attended a workshop on new software and then trained my team on how to use it effectively.
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Q1. API related questions
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Q2. Soap, rest api details
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Q3. XML, Json related questions
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Q4. Prioritisation based questions
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Q5. Case study related questions
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Q1. SQL queries, python questions, project overview
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Q1. Project description, what all technologies you worked upon, will u be able to relocate, etc
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Q1. Questions on fundamental concepts of cybersecurity.
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Q2. What are the Business As Usual (BAU) activities in your current company, and what is the rationale behind them?
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Q3. Will give a scenario and questions based on that.
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Q4. Can you describe a challenging situation you faced and how you overcame it?
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Q5. What types of high and critical alerts have you handled, and what steps did you take to resolve them?
Ans. 
I have handled high and critical alerts related to malware infections, data breaches, and phishing attacks.
• Identifying the source and scope of the alert

• Isolating affected systems to prevent further damage

• Implementing security patches and updates

• Conducting forensic analysis to determine the extent of the breach

• Collaborating with IT teams to strengthen security measures
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Q1. Few similar questions asked in 1st round.
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Q2. Will expect an understanding of security concepts in a bit more detailed manner.
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Q3. What is the architecture of a Security Information and Event Management (SIEM) tool?
Ans. 
SIEM tool architecture includes data collection, normalization, correlation, and reporting components.
• Data collection: Gathers security data from various sources like logs, network traffic, and endpoints.

• Normalization: Standardizes the collected data into a common format for analysis.

• Correlation: Identifies patterns and relationships in the data to detect security incidents.

• Reporting: Generates reports and alerts based...read more
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Q4. Scenario based questions.
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Q1. Tell me about yourself.
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Q2. What information do you have about the company?
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Q3. What are the reasons for choosing this company?
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Q4. Will discuss on general things about you and your previous employers.
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Q5. What is your reason for leaving your current company?
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Q6. What is your current salary, and what are your salary expectations?
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It was a coding round for a medium level leetcode problem involving hashmaps.

Q1. On the internals of TestNG
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Q2. The solution for the coding the test
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Q1. Hiring manager round on past experiences and skillset
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Q1. More around compensation, benefits.
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Q1. Questions related to Datawarehouse
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Q2. Questions related to past technical experience
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Q1. More details related to specific technology
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Q2. Scenario related questions
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Q1. SQL and Python and Spark related questions
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Q2. Project-oriented questions
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Q1. Coding and AWS cloud-related questions like GLUE, LAMBDA, Redshift etc
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Q2. Project and managerial-related questions
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Simple java questions, one coding question and one design question

Q1. What is visitor pattern?
Ans. 
Visitor pattern is a design pattern where a visitor class is used to perform operations on elements of a data structure.
• Visitor pattern allows adding new operations to existing classes without modifying them

• It separates the algorithm from the object structure on which it operates

• Commonly used in compilers, interpreters, and other complex systems
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Q2. You have a 2d array {{1,2},{1,3},{5,6}}. Calculate the sum of elements of 1st position in every array with Java 8.
Ans. 
Calculate sum of elements at 1st position in each array using Java 8.
• Use Java 8 stream to map each array to its 1st element and then sum them up.

• Example: {{1,2},{1,3},{5,6}} -> 1 + 1 + 5 = 7
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Q3. Design Thread collector class
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Thread collector class to manage and organize threads in a system
• Create a ThreadCollector class with methods to add, remove, and retrieve threads

• Implement a data structure like a list or queue to store the threads

• Ensure thread safety by using synchronization mechanisms like locks or semaphores
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Q4. What is volatile?
Ans. 
Volatile refers to a type of memory storage that is temporary and can change frequently.
• Volatile memory loses its data when power is turned off, unlike non-volatile memory.

• Volatile memory is commonly used for temporary storage of data that needs to be quickly accessed and modified.

• Examples of volatile memory include RAM (Random Access Memory) in computers and cache memory in processors.
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Q5. Sql query to remove duplicates
Ans. 
Use the DISTINCT keyword in a SELECT statement to remove duplicates from a table.
• Use the SELECT DISTINCT statement to retrieve unique rows from a table.

• For example: SELECT DISTINCT column_name FROM table_name;

• Another way is to use the GROUP BY clause with the COUNT() function to remove duplicates.

• For example: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;
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Q1. Why do you think you are fit for this role?
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Q2. Why are you leaving your current company?
Ans. 
Seeking new challenges and opportunities for growth.
• Desire for new challenges and opportunities

• Looking for career advancement

• Seeking a more innovative and dynamic work environment
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