NewWave Computing Interview Questions and Answers

Q1. Asked about the details of my projects
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Q2. Digital question related to flip flop and mux.
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Q3. Assertion, constraint questions
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Q4. Asked about different ways of saving power
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1hr interview, asked checker code, checked protocol knowledge mentioned in Resume, asked assertion.

Q1. Draw Digital circuit question based on the waveform
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Q2. Asked about code coverage in details
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Q3. 1 technical puzzle, to print infinite series of a given pattern
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Q4. 1 logical puzzle, 50ball in box of 1 colour and 50ball of 2nd colour in another box, calculate highest probability to choose 1 colour ball.
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Q1. What is polymorphism
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. Find missing number from nth number array.
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Find missing number from nth number array.
• Iterate through the array and calculate the sum of all numbers

• Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2

• Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
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Q3. Explain inheritance and it types
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class.

• Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.

• Example: Class B inherits from Class A, so Class B can access
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Q4. Find 2nd max elements from aaray
Ans. 
Find 2nd max element from array of strings
• Sort the array in descending order

• Skip the first element (max element)

• Return the second element
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Q1. Spark code optimization
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Q2. Data formats in big Data, why each format.
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Different data formats in big data are used for various purposes like storage efficiency, data processing speed, and compatibility with different systems.
• JSON: Lightweight, human-readable, and widely supported for web applications.

• Parquet: Columnar storage format for efficient querying and processing of large datasets.

• Avro: Schema-based serialization format with support for complex data types.

• ORC: Optimized Row Columna...read more
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Q3. Leet code - Most freq elem in a list
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Find the most frequent element in a list of strings.
• Iterate through the list and count the frequency of each element using a dictionary.

• Track the element with the highest frequency as you iterate.

• Return the element with the highest frequency.
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Q1. Na not applicable
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Q2. Na not applicable right now
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Q1. Check if the linked list is palindrome or not
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To check if a linked list is a palindrome, compare the first half of the list with the reversed second half.
• Traverse the linked list to find the middle node

• Reverse the second half of the linked list

• Compare the first half with the reversed second half to check for palindrome
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Q2. C string questions
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Q1. Operating systems questions
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Q2. Linked list and system design question
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