Lionbridge Technologies Senior Database Developer Interview Questions, Process, and Tips

Q1. Ask to write code for equal and hashcode in notepad
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Q2. Type of Collections and its internal working
Ans. 
Java collections are data structures that store and manipulate groups of objects.
• Types of collections include List, Set, Map, Queue, etc.

• Internal workings involve data structures like arrays, linked lists, hash tables, etc.

• Collections framework provides interfaces and classes for working with collections.
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Q3. Count number of occurrence of string from Array
Ans. 
Count occurrences of a specific string in an array of strings.
• Iterate through the array and use a HashMap to store the count of each string.

• Use the string as key and increment the count each time it is encountered.

• Return the count of the specific string at the end.
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Q4. Write a code using stream
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Using stream to filter a list of strings
• Use the filter method to apply a predicate to each element in the stream

• Convert the stream back to a list using the collect method
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Q1. What is your weakness
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Q2. What is pn junction diode
Ans. 
A pn junction diode is a semiconductor device that allows current to flow in one direction only.
• Consists of p-type and n-type semiconductor materials

• When forward biased, allows current to flow easily

• When reverse biased, blocks current flow
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Nice,,,i like the interview process...

I like the interview process...

Nice i like the interview process...
..

Q1. About our academics project
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Q2. About recent technologies
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Q1. Java8 coding to filter the vowels
Ans. 
Using Java8 to filter vowels from an array of strings
• Use Java8 stream and filter to iterate through each string in the array

• Use a lambda expression to check if each character is a vowel

• Collect the filtered strings into a new array
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Q2. Java8, Multi Threading, Hibernate, JPA
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Q1. What is closure
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A closure is a function that has access to its own scope, the scope in which it was defined, and the global scope.
• A closure is created when a function is defined inside another function.

• The inner function has access to the variables and parameters of the outer function, even after the outer function has finished executing.

• Closures are useful for creating private variables and functions in JavaScript.

• They can also be us...read more
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Q2. What is Encapsulation
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Encapsulation is the process of hiding internal details and providing a public interface for accessing and manipulating data.
• Encapsulation bundles data and methods together into a single unit.

• It helps in achieving data abstraction and data hiding.

• By encapsulating data, we can control access to it and prevent unauthorized modifications.

• Encapsulation promotes code reusability and maintainability.

• Example: A class in objec...read more
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Q3. What is Inheritance
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows for code reuse and promotes the concept of hierarchy.

• The class that is being inherited from is called the superclass or base class.

• The class that inherits from the superclass is called the subclass or derived class.

• The subclass can access the public and protected members of the s...read more
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Q4. What is Abstraction
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Abstraction is the process of simplifying complex systems by focusing on essential details.
• Abstraction involves hiding unnecessary details and exposing only relevant information.

• It allows developers to create models or representations that capture the essential aspects of a system.

• Abstraction helps in managing complexity, improving code reusability, and enhancing maintainability.

• For example, in object-oriented programm...read more
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Q5. What is Polymorphism
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Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.
• Polymorphism is a fundamental concept in object-oriented programming.

• It enables code reusability and flexibility.

• Polymorphism can be achieved through method overriding and method overloading.

• Example: A parent class Animal can have multiple child classes like Dog, Cat, and Bird. They can ...read more
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Q1. What is oops concepts
Ans. 
Object-oriented programming concepts that help in organizing and structuring code.
• Encapsulation: Bundling data and methods together in a class.

• Inheritance: Creating new classes from existing ones, inheriting their properties and behaviors.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hiding complex implementation details and providing simplified interfaces.

• Enca...read more
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Q2. Abstraction polymorphism inheritance encapsulation
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Q1. Basic Java concepts - Oops, collection
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30 min .. time, speed, distance

Normal easy qus via leetcode