ECI Telecom Software Engineer Interview Questions and Answers

Round duration - 40 minutes
Round difficulty - Easy

Technical round with questions based on DSA.

Q1. 
Reverse a Number Problem Statement
Create a program to reverse a given integer N. The output should be the reversed integer.
Note:
If a number has trailing zeros, their reversed version should not inclu...read more
Ans. 
Reverse a given integer while excluding trailing zeros.
• Create a program to reverse the given integer by converting it to a string and then reversing it.

• Remove any trailing zeros from the reversed string before converting it back to an integer.

• Handle the constraints of the input integer being between 0 and 10^8.

• Example: For input 1230, the output should be 321.
Answered by AI
View 1 more answer
Q2. 
Reverse a Linked List Problem Statement
You are given a Singly Linked List of integers. Your task is to reverse the Linked List by changing the links between nodes.
Input:
The first line of input contai...read more
Ans. 
Reverse a given singly linked list by changing the links between nodes.
• Iterate through the linked list and reverse the links between nodes.

• Use three pointers to keep track of the current, previous, and next nodes.

• Update the links while traversing the list to reverse it.

• Return the head of the reversed linked list.
Answered by AI
Add your answer
Q3. What is the difference in C++ between 'new int[5]' and 'malloc(5 * sizeof(int))'?
Ans. 
new int[5] is C++ specific and initializes the array with default values, while malloc(5 * sizeof(int)) is a C function and does not initialize the array.
• new int[5] is C++ specific and calls constructors for each element in the array.

• malloc(5 * sizeof(int)) is a C function and does not call constructors, leaving the array uninitialized.

• new int[5] returns a pointer to the first element of the array, while malloc(5 * siz...read more
Answered by AI
Add your answer

Round duration - 60 Minutes
Round difficulty - Easy

The interviewer asked to tell me about myself and then asked some questions to solve like some questions on Lists, Strings and Numbers like comparing 2 strings, performing some operations on lists etc.

Q1. 
Check Word Presence in String
Given a string S and a list wordList containing N distinct words, determine if each word in wordList is present in S. Return a boolean array where the value at index 'i' indi...read more
Ans. 
Given a string and a list of words, determine if each word in the list is present in the string and return a boolean array indicating their presence.
• Iterate through each word in the word list and check if it is present in the string.

• Use a boolean array to store the presence of each word in the string.

• Remember that the presence of a word is case sensitive.

• Do not use built-in string-matching methods.

• Return the boolean ar
Answered by AI
Add your answer

Round duration - 20 Minutes
Round difficulty - Easy

Q1. Os , CPP , bit manipulation
Add your answer

Q1. Os , threads,cpp, python
Add your answer

2 Coding Questions and approx 20 MCQs where there in the Online Assisment

Q1. Technical interview Round and HR Round where conducted in the same meet, 2 panel were there. They asked me a Linked List Question given two numbers represtend by two linked list of size n and m respectivel...read more
Add your answer

Questions of medium difficulty were posed.

Q1. OS, DSA, COA related questions
Add your answer
Q2. Coding questions to solve
Add your answer
Q3. Array, linkedlist questions
Add your answer

Q1. Project related questions
Add your answer

Q1. Final discussion
Add your answer

Q1. Tell me about yourself.
Add your answer