Jawahar Navodaya Vidyalaya Information Security Trainer Interview Questions and Answers

Medium leetcode question on graph was given by third party interviewer BarRaiser

Q1. First round will be of written examination in the concerned subject. The first 20 questions are for +4 marks for each correct answer and -1 for wrong answer. The next 10 questions will carry+6 marks for co...read more
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Q2. Written examination followed as described above
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Q1. The 2nd round will be of one to one demonstration of a topic. The process allows you to talk for 30 minutes uninterrupted and later followed by Viva voce on the same topic or a different topic
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Q1. HR round usually asks about your previous experience and your interest to work for their organisation.
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Q1. Basic questions for ADF
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Q1. Basic HR round for CTC and notice period
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Good with easy questions

Q1. Questions around my projects
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Q1. Salary discussion round with HR
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Q1. Coding question: Given a sorted array of numbers. All numbers have freq of 2 in array except one number. Find that number with T.C of logn
Ans. 
Find the single number in a sorted array with frequency of 2 for all other numbers.
• Use binary search to find the number with different frequency.

• Check if the mid element is at even or odd index to determine which side to search next.

• Example: Input array [1, 1, 2, 2, 3, 3, 4, 4, 5] should return 5.
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Q2. Print left view of tree
Ans. 
Print the left view of a tree by traversing the tree from left to right at each level
• Traverse the tree using level order traversal

• Print the first node at each level encountered during traversal
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Q1. Detailed discussion on projects
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Q2. Questions on O.S like about deadlocks,etc..
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Q1. What is the XPath?
Ans. 
XPath is a query language used for selecting nodes from an XML document.
• XPath stands for XML Path Language

• It is used to navigate through elements and attributes in an XML document

• XPath uses path expressions to select nodes or node-sets in an XML document

• Example: /bookstore/book[1]/title selects the title of the first book in a bookstore
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Q2. Difference between static and non-static?
Ans. 
Static variables are shared among all instances of a class, while non-static variables belong to individual instances.
• Static variables are declared using the 'static' keyword, while non-static variables are not.

• Static variables are initialized only once at the start of the program, while non-static variables are initialized each time an instance is created.

• Static variables can be accessed using the class name, while no...read more
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Q1. Design a distributed system with 10mil users
Ans. 
Design a distributed system to handle 10 million users.
• Use a microservices architecture to break down the system into smaller, manageable components.

• Implement load balancing to distribute user requests across multiple servers.

• Utilize a distributed database to store user data and ensure scalability.

• Implement caching mechanisms to improve performance and reduce database load.

• Use message queues for asynchronous communicat...read more
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Q1. What is your experience
Ans. 
I have 5 years of experience teaching PGT level students in a reputed school.
• 5 years of experience teaching PGT level students

• Experience in a reputed school setting

• Familiarity with curriculum and teaching methods for PGT level
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Q2. What is your expeccted salary
Ans. 
My expected salary is based on my qualifications, experience, and the industry standards.
• Consider my qualifications and experience in the field

• Research industry standards for PGT teachers in the area

• Negotiate based on the responsibilities and workload of the position
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