Lexicon Networks Software Engineer Trainee Interview Questions and Answers

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.
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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
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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
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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. Basic java questions
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Q2. Sql related questions
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Normal Math Quants, Verbal and Logical ability questions. This round actually comprises of both Aptitude and Coding

Q1. Questions about cloud, What do you understand by cloud ?, What's the importance of it?
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Q2. Python coding question - Write a code for Fibonacci series.
Ans. 
Code for Fibonacci series in Python.
• Use a loop to iterate through the series

• Start with 0 and 1 as the first two numbers

• Add the previous two numbers to get the next number

• Repeat until desired number of terms is reached
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Q3. Python conceptual questions
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Q4. What is an CIDR block? why is it used ?what is the range of CIDR block?
Ans. 
CIDR block is a method of allocating IP addresses and routing Internet Protocol packets.
• CIDR stands for Classless Inter-Domain Routing.

• It is used to allocate IP addresses and route Internet Protocol packets.

• CIDR block is a combination of an IP address and its associated network mask.

• CIDR notation is used to represent the CIDR block, for example, 192.168.0.0/16.

• The range of CIDR block varies depending on the network mas
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Q5. Introduce yourself in a few lines.
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Q1. Name and where are you from ?
Ans. My self Sirisha , I'm from khammam district sathupally mandal
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Q2. Educational background?
Ans. Degree final year at kakatiya University
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Q3. What are your strengths?
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Q4. What are your weakness?
Ans. Straight forward More talkative Trust people very quickly
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Q5. Why should I hair you?
Ans. Career goals Work experience Skills realated to job
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It was basic aptitude along with java MCQ

Q1. Core java, SpringBoot
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