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Google Interview Questions, Process, and Tips
Top Google Interview Questions and Answers
- Q1. Painter's Partition Problem Statement Given an array/list representing boards, where each element denotes the length of a board, and a number ‘K’ of available painters, ...read moreasked in Software Developer interview
- Q2. If your Wi-Fi router is not working then what you will do to fix it?asked in Software Engineer interview
- Q3. Hotel Room Booking Problem You are managing a hotel with 10 floors numbered from 0 to 9. Each floor contains 26 rooms labeled from A to Z. You will receive a sequence of ...read moreasked in Software Developer Intern interview
Google Interview Experiences
825 interviews found
I applied via Referral and was interviewed before Aug 2022. There were 2 interview rounds.
(5 Questions)
- Q1. Tell me about different types of graph..
- Ans.
There are various types of graphs used in data visualization, such as bar graphs, line graphs, pie charts, scatter plots, and histograms.
Bar graph - used to compare different categories
Line graph - shows trends over time
Pie chart - displays parts of a whole
Scatter plot - shows relationship between two variables
Histogram - displays distribution of data
- Q2. Questions based on dfs and bfs were asked
- Q3. Difference between ordered and unordered map
- Ans.
Ordered map maintains the order of insertion while unordered map does not guarantee any specific order.
Ordered map: elements are stored in the order they were inserted
Unordered map: elements are stored in an unspecified order for faster access
Example: std::map vs std::unordered_map in C++
- Q4. Some question related to projects
- Q5. Last ending question do u have something to ask
Interview Preparation Tips
- Graphs
- Dynamic programming
- trees
- advance dsa
Skills evaluated in this interview
Top Google Intern Interview Questions and Answers
Intern Interview Questions asked at other Companies
Aditi
(20 Questions)
- Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
- Ans.
ArrayList and LinkedList are both classes in Java that implement the List interface, but they have different underlying data structures.
ArrayList uses a dynamic array to store elements, providing fast random access but slower insertion and deletion.
LinkedList uses a doubly linked list to store elements, providing fast insertion and deletion but slower random access.
Choose ArrayList when you need fast random access and ...
- Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
- Ans.
Using synchronized keyword for thread synchronization in Java has advantages like simplicity and disadvantages like potential for deadlock. ReentrantLock offers more flexibility and control.
Advantages of synchronized keyword: simplicity, built-in support in Java
Disadvantages of synchronized keyword: potential for deadlock, lack of flexibility
ReentrantLock offers more control over locking, ability to try and lock with t...
- Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
- Ans.
In Java, == compares memory addresses while .equals() compares values of objects. Improper usage can lead to unexpected results.
Use == to compare primitive data types or check if two objects reference the same memory address.
Use .equals() to compare the values of objects, such as strings or custom classes.
Improper usage of == with objects can lead to unexpected results as it compares memory addresses, not values.
- Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
- Ans.
The Java garbage collector is responsible for automatically managing memory by reclaiming unused objects.
The garbage collector in Java runs in the background and automatically reclaims memory from objects that are no longer in use.
There are different types of garbage collection algorithms in Java, such as Serial, Parallel, CMS, G1, and ZGC.
Each garbage collection algorithm has its own characteristics and is suitable fo
- Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
- Ans.
Java 8 introduced features like lambdas and Stream API which have revolutionized the way Java applications are written.
Lambdas allow for more concise and readable code by enabling functional programming paradigms.
Stream API provides a way to process collections of objects in a functional style, making code more expressive and efficient.
Java 8 also introduced default methods in interfaces, allowing for backward compatib...
- Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
- Ans.
Checked exceptions are checked at compile time, while unchecked exceptions are not. Proper handling involves either catching or declaring the exception.
Checked exceptions must be either caught or declared in the method signature using the 'throws' keyword.
Unchecked exceptions do not need to be caught or declared, but can still be handled using try-catch blocks.
Examples of checked exceptions include IOException and Clas...
- Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
- Ans.
The Java Memory Model defines how threads interact through memory and how synchronization ensures data consistency.
Java Memory Model specifies how threads interact with memory, ensuring data consistency
It defines rules for reading and writing shared variables in a multithreaded environment
Synchronization mechanisms like synchronized blocks and locks ensure proper visibility and ordering of memory operations
The 'volatil...
- Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
- Ans.
Method overloading is when multiple methods have the same name but different parameters, while method overriding is when a subclass provides a specific implementation of a method in its superclass.
Method overloading is achieved within the same class by having multiple methods with the same name but different parameters.
Method overriding occurs in a subclass that provides a specific implementation of a method that is al...
- Q9. What are functional interfaces in Java? How do they work with lambda expressions? Provide an example of a custom functional interface.
- Ans.
Functional interfaces in Java are interfaces with a single abstract method. They can be used with lambda expressions for functional programming.
Functional interfaces have only one abstract method, but can have multiple default or static methods.
Lambda expressions can be used to implement the abstract method of a functional interface concisely.
An example of a custom functional interface is 'Calculator' with a single abs
- Q10. What is a Java Stream, and how does it differ from an Iterator? Explain how Streams can be used to process collections efficiently.
- Ans.
Java Stream is a sequence of elements that supports functional-style operations. It differs from Iterator by allowing for more concise and declarative code.
Streams can process elements in a collection in a declarative way, allowing for functional-style operations like map, filter, and reduce.
Streams do not store elements, they operate on the source data structure (e.g., List) directly.
Iterators are used to iterate over...
- Q11. Explain the concept of immutability in Java. How does the String class achieve immutability, and what are the advantages of immutable objects?
- Ans.
Immutability in Java means objects cannot be modified after creation. String class achieves immutability by not allowing changes to its value.
Immutability means once an object is created, its state cannot be changed.
String class achieves immutability by making its value final and not providing any methods to modify it.
Advantages of immutable objects include thread safety, caching, and easier debugging.
Example: String s...
- Q12. What is the difference between final, finally, and finalize in Java? Provide examples to illustrate their usage.
- Ans.
final, finally, and finalize have different meanings in Java.
final is a keyword used to declare constants, immutable variables, or prevent method overriding.
finally is a block used in exception handling to execute code after try-catch block.
finalize is a method used for cleanup operations before an object is garbage collected.
- Q13. Explain the Singleton design pattern in Java. How can you implement it safely to ensure thread safety?
- Ans.
Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
Create a private static instance of the class.
Provide a public static method to access the instance.
Use synchronized keyword or double-checked locking to ensure thread safety.
- Q14. What are Java annotations, and how are they used in frameworks like Spring? Explain the difference between built-in and custom annotations.
- Ans.
Java annotations are metadata that provide data about a program but do not affect the program itself. They are used in frameworks like Spring to configure and customize behavior.
Java annotations are used to provide metadata about a program, such as information about classes, methods, or fields.
In frameworks like Spring, annotations are used to configure various aspects of the application, such as defining beans, handli...
- Q15. How do Java Streams handle parallel processing? What are the potential pitfalls of using parallel streams, and how can they be mitigated?
- Ans.
Java Streams handle parallel processing by splitting the data into multiple chunks and processing them concurrently.
Java Streams use the Fork/Join framework to split the data into chunks and process them in parallel.
Potential pitfalls include increased overhead due to thread management, potential race conditions, and decreased performance for small datasets.
Pitfalls can be mitigated by ensuring thread safety, avoiding ...
- Q16. Explain the difference between ArrayList and LinkedList in Java. ArrayList is implemented as a dynamic array, while LinkedList is a doubly linked list. ArrayList provides fast random access (O(1) complexi...
- Ans.
ArrayList is preferred for frequent retrieval operations, while LinkedList is suitable for frequent insertions/deletions.
Use ArrayList when you need fast random access and retrieval operations, such as searching for elements in a list.
Choose LinkedList when you need fast insertions/deletions, especially at the beginning or end of the list.
Consider memory overhead and performance trade-offs when deciding between ArrayLi...
- Q17. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? The synchronized keyword ensures that only one thread can access a block of code at a time. It pr...
- Ans.
ReentrantLock should be used instead of synchronized when more flexibility and control over locking mechanisms is needed.
Use ReentrantLock when you need to implement custom locking strategies or require advanced features like tryLock() and lockInterruptibly()
ReentrantLock supports fair locking mechanisms, ensuring that threads acquire the lock in the order they requested it
ReentrantLock allows for more fine-grained con...
- Q18. What is the difference between == and .equals() in Java? == checks for reference equality, meaning it compares memory addresses. equals() checks for value equality, which can be overridden in user-defined...
- Ans.
In Java, == checks for reference equality while equals() checks for value equality. Misuse of == can lead to logical errors.
Override equals() when you want to compare the actual content of objects in user-defined classes.
Override hashCode() alongside equals() to ensure consistent behavior in hash-based collections.
Implement Comparable interface and override compareTo() for natural ordering of objects.
- Q19. How does the Java garbage collector work? Garbage collection in Java automatically reclaims memory occupied by unused objects. The JVM has different types of GC algorithms, including Serial, Parallel, CMS...
- Ans.
Garbage collection in Java automatically reclaims memory occupied by unused objects using different algorithms and memory regions.
Force garbage collection in Java using System.gc() or Runtime.getRuntime().gc()
Not recommended to force garbage collection as it can cause performance issues and disrupt the JVM's optimization
Example: System.gc();
- Q20. What are the main features of Java 8? Java 8 introduced lambda expressions, enabling functional-style programming. The Stream API allows efficient data processing with map, filter, and reduce operations. ...
- Ans.
Lambda expressions in Java 8 improve readability and maintainability by allowing concise and functional-style programming.
Lambda expressions reduce boilerplate code by providing a more compact syntax for implementing functional interfaces.
They make code more readable by focusing on the behavior being passed as an argument, rather than the mechanics of how it is implemented.
Lambda expressions enable developers to write ...
Top Google Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Selected
(3 Questions)
- Q1. I am interested for jobs Data Entry operator
- Q2. How is possible google for my jobs I am very happy Thanksgiving
- Q3. I needed for this job
(2 Questions)
- Q1. 8 years Experience working from Data Entry operator
- Q2. BNMU Madhepura District
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Data Entry Operator Interview Questions asked at other Companies
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Human Resource and Administration Executive Interview Questions & Answers
Anonymous
posted on 18 Jan 2025
Selected
I applied via Company Website and was interviewed in Dec 2024. There were 3 interview rounds.
(6 Questions)
- Q1. What. about . this. Company
- Q2. Sir. It. a. fast. grouting. Company. and. will.. learn. More.. new. technology. . In.. future
- Q3. So. In. my. Point. Of. View. definitely. Your.. Company.will.. be. One. Of. the.. leading. Companies. In. Your country
- Q4. It. is. fast. growing. company. and.. I Will. learn. more. new.. Works. In. future. I. know. It. good. facility
- Q5. It. Is. a. best platform. to. Start. my. Career. as. a. fresher. and. it's. helpful. In. any. Professional. growth
- Q6. This. Is. my career. sterling. time. I. think. your company. Is. a good. platform. fur. me. to. Improve. myself
(1 Question)
- Q1. What. about. this. Company
(1 Question)
- Q1. What. about. this. Company
Interview Preparation Tips
Human Resource and Administration Executive Interview Questions asked at other Companies
Google interview questions for popular designations
Selected
I was interviewed in Dec 2024.
Data Analysis and Automation Testing.
Team work and communication
(3 Questions)
- Q1. Work culture and promotion!!?
- Q2. Better Income and study!?
- Ans.
Balancing income and study is possible with proper time management and prioritization.
Prioritize tasks based on importance and deadlines
Create a study schedule that fits around work hours
Utilize breaks at work to study or review material
Consider part-time study options or online courses
Seek financial aid or scholarships to alleviate financial burden
- Q3. Work freedom!??
(2 Questions)
- Q1. Face to face communication?
- Q2. Discussion?
Interview Preparation Tips
Quality Analyst Interview Questions asked at other Companies
Get interview-ready with Top Google Interview Questions
I applied via Approached by Company and was interviewed in Oct 2024. There were 2 interview rounds.
(5 Questions)
- Q1. What is the social networking
- Ans.
Social networking refers to the use of internet-based platforms to connect with others, share information, and build relationships.
Social networking sites allow users to create profiles, connect with friends, and share updates and photos.
Popular social networking platforms include Facebook, Twitter, Instagram, and LinkedIn.
Social networking can be used for personal connections, professional networking, and marketing pu...
- Q2. How many people added in google
- Ans.
The number of people added in Google is constantly changing due to hiring, acquisitions, and other factors.
Google adds thousands of employees each year through hiring and acquisitions.
As of 2021, Google has over 140,000 employees worldwide.
The exact number of people added in Google can vary depending on the time frame and specific context of the question.
- Q3. What is the charts accountant
- Ans.
A charts accountant is a professional who specializes in creating and analyzing financial charts and graphs to help businesses make informed decisions.
Charts accountants use data visualization techniques to present financial information in a clear and concise manner.
They often work with software programs like Microsoft Excel or Tableau to create charts and graphs.
Charts accountants help businesses track key performance...
- Q4. What is a gaming review
- Ans.
A gaming review is an evaluation of a video game, assessing its gameplay, graphics, sound, and overall quality.
Gaming reviews provide insights into the strengths and weaknesses of a game.
They often include ratings or scores to summarize the reviewer's opinion.
Reviews may also discuss the game's story, mechanics, replay value, and technical performance.
Examples of popular gaming review websites include IGN, GameSpot, an
- Q5. How many salary in google
Very hardworking studying in coding
Interview Preparation Tips
- Accounting
- Game Testing
growth manager Interview Questions asked at other Companies
Jobs at Google
I applied via Campus Placement
(4 Questions)
- Q1. Can you describe a challenging project you worked on and how you handled it?
- Ans.
I worked on developing a website for a local non-profit organization.
Collaborated with the organization to understand their needs and goals
Designed a user-friendly interface with donation functionality
Implemented responsive design for mobile compatibility
Tested the website for bugs and usability issues
Provided training to the organization's staff on how to update content
- Q2. How do you prioritize tasks when you have multiple deadlines to meet?
- Ans.
I prioritize tasks by assessing deadlines, importance, and dependencies.
Assess all deadlines and prioritize based on urgency
Consider the importance and impact of each task
Identify any dependencies between tasks and plan accordingly
Break down larger tasks into smaller, manageable sub-tasks
Use tools like to-do lists or project management software to stay organized
- Q3. Tell me about a time when you had to learn a new skill quickly to complete a project. How did you approach it?
- Q4. Describe a situation where you received constructive criticism. How did you respond and what changes did you make?
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Web Development Intern Interview Questions asked at other Companies
Selected
I applied via Campus Placement and was interviewed in Sep 2024. There was 1 interview round.
(6 Questions)
- Q1. Can you describe a challenging project you worked on and how you handled it?
- Q2. How do you prioritize tasks when you have multiple deadlines to meet?
- Ans.
Prioritize tasks based on deadlines, importance, and impact on overall project goals.
Evaluate deadlines and prioritize tasks based on urgency
Consider the importance of each task in relation to project goals
Assess the impact of completing each task on overall project progress
Communicate with stakeholders to understand priorities and expectations
Break down tasks into smaller sub-tasks to manage workload effectively
- Q3. Describe a situation where you had to collaborate with a difficult team member. How did you approach the situation?
- Q4. What strategies do you use to ensure the quality of your work?
- Q5. How do you handle feedback or criticism from peers or supervisors?
- Ans.
I handle feedback by actively listening, reflecting on the criticism, and using it to improve my work.
I actively listen to the feedback without getting defensive
I reflect on the criticism to understand the underlying issues
I use the feedback to improve my work and skills
I seek clarification if needed to fully understand the feedback
I appreciate constructive criticism as an opportunity for growth
- Q6. Can you describe a time when you had to adapt to a significant change at work? How did you handle it?
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Software Development Engineer Interview Questions asked at other Companies
I applied via AmbitionBox and was interviewed in Dec 2024. There were 2 interview rounds.
Aptitude test for selection.
(2 Questions)
- Q1. What is your understanding of data analytics?
- Ans.
Data analytics involves analyzing raw data to draw conclusions and make informed decisions.
Data analytics involves collecting, processing, and analyzing data to identify trends and patterns.
It helps businesses make data-driven decisions and improve performance.
Techniques used in data analytics include data mining, machine learning, and statistical analysis.
Examples of data analytics in action include predicting custome...
- Q2. What is the significance of data analytics in analyzing and visualizing data?
- Ans.
Data analytics is crucial for extracting insights and patterns from data, and visualizing them in a meaningful way.
Data analytics helps in identifying trends, patterns, and correlations within large datasets.
It enables businesses to make informed decisions based on data-driven insights.
Visualizations such as charts, graphs, and dashboards make complex data easier to understand and interpret.
Data analytics can uncover h...
Interview Preparation Tips
Data Analyst Interview Questions asked at other Companies
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
The coding questions were at Leetcode difficulty level and were derived from the Striver sheet.
(2 Questions)
- Q1. BFS graph level
- Q2. Minimum flight distance . I was not shortlisted for interview.
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Top Google Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
SUSHANT WAYBHASE
Selected
I applied via Campus Placement and was interviewed in Dec 2024. There were 4 interview rounds.
It's good and many more things are pending
Very good it was very good best nice very nice
God food good water and good everything good
(3 Questions)
- Q1. What is name and why this name only
- Ans.
Name is a unique identifier given to an individual to distinguish them from others.
Name is used for identification and communication purposes.
Names are often chosen by parents at birth, but can also be changed legally.
Names can have cultural, religious, or personal significance.
Some names are passed down through generations in families.
Nicknames or aliases may also be used in addition to a person's given name.
- Q2. Why we should select you
- Ans.
I have a strong technical background, excellent problem-solving skills, and a passion for software development.
Extensive experience in programming languages such as Java, Python, and C++
Proven track record of delivering high-quality software solutions on time
Strong analytical and problem-solving skills demonstrated through successful project implementations
- Q3. My parents has given that's why
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Google Interview FAQs
Some of the top questions asked at the Google interview -
The duration of Google interview process can vary, but typically it takes about less than 2 weeks to complete.
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