WinWire Interview Questions, Process, and Tips

Q1. Solid principal
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Q2. Angular basic questions
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Q1. Min and Max Salary question from SQL
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Q2. What is Second and First level cache and its mechanism
Ans. 
First level cache is located inside the CPU core and is smaller but faster, while second level cache is larger but slower.
• First level cache is typically around 32KB-256KB in size and is faster than second level cache.

• Second level cache is larger, around 256KB-8MB, and is slower than first level cache.

• Cache mechanism involves storing frequently accessed data closer to the CPU for faster access times.
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Q3. How JWT works and briefly explain about it
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Q4. Explain how you configure Hibernate
Ans. 
Hibernate configuration involves setting up database connection properties and mapping classes to database tables.
• Create a hibernate.cfg.xml file to specify database connection properties

• Define mapping between Java classes and database tables using annotations or XML

• Configure session factory to create sessions for database operations

• Set up transaction management for handling database transactions
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Q5. What is singleton and example of it
Ans. 
A singleton is a design pattern that restricts the instantiation of a class to one object.
• Singleton pattern ensures that a class has only one instance and provides a global point of access to it.

• Commonly used in scenarios where a single instance of a class is required, such as database connections, logging, or thread pools.

• Example: Singleton pattern can be implemented by creating a static method in a class that returns
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50 questions total good experience

Domain related topic for group discussion

Q1. Programming languages
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Q2. Machine learning
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Q1. Situation based
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Q2. About company we have to tell
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Was average and I solved it and got 36 marks out of 50

Q1. Explain the palindrome sequence Prime number sequence Enquiry about family Asked few aptitude questions
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Q2. Explain palindrome sequence
Ans. 
A palindrome sequence is a sequence of characters that reads the same forwards and backwards.
• Palindrome sequences are often used in programming to check for symmetry or to create puzzles.

• Examples of palindrome sequences include 'racecar', 'madam', and 'level'.
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Q3. Explain the prime number code in c
Ans. 
Prime number code in C checks if a given number is prime or not.
• Use a loop to check if the number is divisible by any number from 2 to its square root.

• If the number is only divisible by 1 and itself, it is a prime number.

• Example: int isPrime(int num) { for(int i=2; i*i<=num; i++) { if(num%i == 0) return 0; } return 1; }
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Quantitive aptitude and verbal reasoning

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