Sercomm Corporation Interview Questions and Answers

Q1. Asked about the details of my projects
Add your answer
Q2. Digital question related to flip flop and mux.
Add your answer
Q3. Assertion, constraint questions
Add your answer
Q4. Asked about different ways of saving power
Add your answer

1hr interview, asked checker code, checked protocol knowledge mentioned in Resume, asked assertion.

Q1. Draw Digital circuit question based on the waveform
Add your answer
Q2. Asked about code coverage in details
Add your answer
Q3. 1 technical puzzle, to print infinite series of a given pattern
Add your answer
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.
Add your answer

Q1. What is polymorphism
Ans. 
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.
Answered by AI
Add your answer
Q2. Find missing number from nth number array.
Ans. 
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
Answered by AI
Add your answer
Q3. Explain inheritance and it types
Ans. 
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer

Q1. Scenario based questions
Add your answer
Q2. Experience as field based questions
Add your answer

Q1. Process improvements knowledge
Add your answer
Q2. Projects delivered
Add your answer

There were two rounds of interviews, which included a case study. It felt more like a discussion than a formal interview. Although I was not selected, the overall experience throughout the process was positive. The HR team was very supportive; in fact, they notified me about my non-selection, which is uncommon in the industry.

Q1. Related to my profile
Add your answer

Q1. Spark code optimization
Add your answer
Q2. Data formats in big Data, why each format.
Ans. 
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
Answered by AI
Add your answer
Q3. Leet code - Most freq elem in a list
Ans. 
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.
Answered by AI
Add your answer

Q1. Check if the linked list is palindrome or not
Ans. 
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
Answered by AI
Add your answer
Q2. C string questions
Add your answer

Q1. Operating systems questions
Add your answer
Q2. Linked list and system design question
Add your answer

There were around 60 questions and negative marking was also there

Q1. Introduce yourself
Ans. 
I am a Full Stack Developer with experience in front-end and back-end technologies.
• Proficient in HTML, CSS, JavaScript for front-end development

• Skilled in Node.js, Express, MongoDB for back-end development

• Experience with React.js and Angular for building interactive web applications
Answered by AI
Add your answer
Q2. What is diamond problem
Ans. 
Diamond problem is a common issue in multiple inheritance where a class inherits from two classes that have a common ancestor.
• Occurs in languages that support multiple inheritance like C++

• Results in ambiguity when calling methods or accessing attributes from the common ancestor class

• Can be resolved using virtual inheritance or interfaces
Answered by AI
Add your answer
Q3. Run length encoding dsa problem
Ans. 
Run length encoding is a data compression technique that replaces repeated characters with a count and single character.
• Iterate through the input array of strings

• Count the number of consecutive characters in each string

• Replace consecutive characters with count and character
Answered by AI
Add your answer
Q4. Rotate an array by d times
Ans. 
Rotate an array of strings by d times
• Create a new array and copy elements from original array based on rotation index

• Use modulo operator to handle cases where d is greater than array length

• Handle edge cases like empty array or d being negative
Answered by AI
Add your answer