Wittybrains Software Technologies Interview Questions, Process, and Tips

Basic level aptitude test

Easy topic is recursion ,time complexity,array

Medium level they need of employee who's know python

Q1. All questions were based on Laravel
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Q2. Fundamental question to check working experience on Laravel.
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Q3. About middleware
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Q4. Question bases on Job, queue, worker and command etc.
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Q1. On which technology do you wish to work?
Ans. 
I wish to work on developing applications using artificial intelligence and machine learning technologies.
• Passionate about developing intelligent systems that can learn and adapt

• Interested in working on projects involving natural language processing, computer vision, and predictive analytics

• Experience with tools and frameworks like TensorFlow, PyTorch, and scikit-learn
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Q2. Being laravel developer lot of question based on Laravel
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Q1. Basic Java Questions on OOPS, JVM, Microservices etc.
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Q2. Write a program to find the duplicate number in an array ranging 1 to 100, the input array contains exactly 100 items.
Ans. 
Program to find duplicate number in array of 1 to 100 items.
• Iterate through array and use a set to keep track of seen numbers.

• If a number is already in set, it is a duplicate.

• Return the duplicate number found.
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Q1. Write a program to count vowels and consonants in string
Ans. 
A program to count the number of vowels and consonants in a given string.
• Iterate through each character in the string

• Check if the character is a vowel or consonant

• Increment the respective count

• Return the counts of vowels and consonants
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Q2. Write a program to reverse a string
Ans. 
Program to reverse a string
• Use a loop to iterate through the string and append each character to a new string in reverse order

• Alternatively, use built-in string functions like reverse() or slice()
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Q3. Write a program to delete middle node from the linked list
Ans. 
Program to delete middle node from linked list
• Traverse the list to find the middle node

• Delete the middle node by updating pointers

• Handle edge cases like even number of nodes
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Q4. What is the difference between truncate and drop command
Ans. 
Truncate removes all data from a table while drop deletes the table itself.
• Truncate is faster than drop as it only removes data and not the table structure

• Truncate cannot be rolled back while drop can be

• Truncate resets the identity of the table while drop does not

• Truncate can only be used on tables while drop can be used on tables, views, and indexes
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Q5. What is static keyword
Ans. 
Static keyword is used to define a class-level variable or method that can be accessed without creating an instance of the class.
• Static variables are shared among all instances of a class

• Static methods can be called without creating an object of the class

• Static keyword can also be used to define a static block of code that gets executed only once when the class is loaded

• Example: public static int count = 0; or public s
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Q6. Explain oops concept (polymorphism)
Ans. 
Polymorphism is the ability of an object to take on many forms.
• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It can be achieved through method overloading or method overriding.

• Example: A shape class can have different subclasses like circle, square, and triangle. Each subclass can have its own implementation of the draw method.

• Polymorphism makes code more flexible and r
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