Google IT Application Specialist Interview Questions and Answers

Asked quant and reasoning and English

Q1. What is normanlization
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down data into smaller, more manageable tables

• It helps in reducing data redundancy by storing data in a structured manner

• Normalization ensures data integrity by minimizing data anomalies

• There are different normal forms such as 1NF, 2NF, 3NF, BCNF, etc.
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Q2. Types of normalisation
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Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Types of normalization include 1NF, 2NF, 3NF, BCNF, and 4NF.

• 1NF (First Normal Form) ensures that each column contains atomic values.

• 2NF (Second Normal Form) eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the primary key.

• 3NF (Third Normal Form) eliminates t...read more
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Q1. Difference between class & interface
Ans. 
Classes can have both implementation and data members, while interfaces can only have method signatures.
• Classes can have constructors, interfaces cannot.

• Classes can have access modifiers for their members, interfaces cannot.

• A class can implement multiple interfaces, but can only inherit from one class.

• Interfaces are used to achieve abstraction and multiple inheritance in Java.

• Example: Class 'Animal' can have methods li...read more
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Q1. About current project
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Q1. Explain the concept of multithreading and how is it differ from multiprocessing
Ans. 
Multithreading allows multiple threads to exist within the context of a single process, while multiprocessing involves multiple processes running concurrently.
• Multithreading allows multiple threads to share the same memory space and resources of a single process, while multiprocessing involves separate memory space for each process.

• Multithreading is more lightweight and efficient compared to multiprocessing as threads ...read more
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Q1. Explain react dom in details
Ans. 
React DOM is a package that provides methods for updating the DOM in response to React components.
• React DOM is used to render React components to the DOM.

• It provides methods like ReactDOM.render() to render components.

• React DOM efficiently updates the DOM when the state of a component changes.

• It handles events and updates the DOM accordingly.

• React DOM is separate from React itself, allowing for flexibility in rendering
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Q2. Explain MVC in rails
Ans. 
MVC in Rails is a software design pattern that separates the application into three main components: Model, View, and Controller.
• Model: Represents the data and business logic of the application.

• View: Represents the user interface of the application.

• Controller: Acts as an intermediary between the Model and View, handling user input and updating the Model accordingly.

• Example: In a Rails application, a User model would ha...read more
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Q1. Stacks queues data structures
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Q1. Project explanation,security concept question,integration basics,what are debug logs
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Q2. Lwc lifecycle hooks and one trigger to code
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Q1. Garbage collector algorithm
Ans. 
Garbage collector algorithm manages memory allocation and deallocation in a program.
• Garbage collector automatically frees up memory that is no longer in use.

• It identifies and removes objects that are no longer referenced by the program.

• There are different types of garbage collector algorithms such as mark-and-sweep, reference counting, and generational.

• Java and .NET languages use garbage collector by default.

• Garbage co...read more
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Q1. Memory management questions
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