Lekha Wireless Solutions Senior Engineer 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. What are the network operator in india
Ans. 
Some of the major network operators in India are Airtel, Vodafone Idea, Reliance Jio, and BSNL.
• Airtel is one of the largest telecom operators in India, offering services like mobile, broadband, and digital TV.

• Vodafone Idea is a merger of Vodafone India and Idea Cellular, providing mobile services across the country.

• Reliance Jio is known for its 4G network and affordable data plans, disrupting the telecom market in Indi...read more
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Q2. What is 2G,3G and 4G
Ans. 
2G, 3G, and 4G are generations of mobile network technology, each offering faster data speeds and improved capabilities.
• 2G refers to second-generation mobile networks, providing basic voice and text services.

• 3G is the third generation, offering faster data speeds for internet browsing and multimedia applications.

• 4G is the fourth generation, delivering even faster data speeds, lower latency, and support for advanced ser...read more
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Q3. What are the type of tower structure ,GBT,RTTANDRTP
Ans. 
GBT stands for Guyed Tower, RTT stands for Roof Top Tower, and RTP stands for Roof Top Pole.
• GBT (Guyed Tower) is a type of tower structure supported by guy wires.

• RTT (Roof Top Tower) is a tower structure installed on the roof of a building.

• RTP (Roof Top Pole) is a pole structure installed on the roof of a building.
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Q4. Type of sim card
Ans. 
The type of SIM card refers to the physical size and shape of the SIM card, such as standard, micro, or nano.
• Types of SIM cards include standard, micro, and nano sizes

• Standard SIM cards are the largest, micro SIM cards are smaller, and nano SIM cards are the smallest

• Different devices may require different types of SIM cards
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Q5. What is alpha, beta and gamma sector
Ans. 
Alpha, beta, and gamma sectors are divisions used in various industries to categorize different areas or components.
• Alpha sector typically refers to the first or primary sector in a system or project

• Beta sector usually represents the secondary or intermediate sector

• Gamma sector often denotes the tertiary or final sector

• These divisions can be used in project management, software development, manufacturing, etc.
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Q1. Asked about my project related questions
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Generic dotnet questions mcq

Q1. .net, c# , sql , async questions
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One problem is given need to make logic and your current project details

Managerial round was taken at the end

Q1. Array Linked list BST
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Q1. Array LL BST Stack
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General aptitude questions will be asked

Q1. Salesforce.com technical questions will be asked
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Q1. Salary negotiation etc
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