Western Digital Interview Questions, Process, and Tips

Q1. Tell me about yourself
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Q2. Are you willing to Join?
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Q1. What is your last company designation?
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Q2. Explain the job you have before
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Q1. Asked about regression testing and when can it be performed?
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Q2. There were couple of logical thinking questions?
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Q1. Asked about the Registry in a computer?
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Q2. Asked about the network and console logs?
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Q3. Do you know how to lower the internet speed using dev tools in a browser?
Ans. 
Yes, it can be done using network throttling feature in dev tools.
• Open dev tools in browser

• Go to Network tab

• Select the desired network speed from the dropdown menu

• Reload the page to see the changes

• Example: In Chrome, go to Dev Tools > Network > Throttling dropdown menu

• Example: Select 'Slow 3G' to lower the internet speed
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Q4. Use cases for Google Drive?
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Google Drive can be used for storing, sharing, and collaborating on various types of files.
• Storing personal and work documents

• Sharing files with colleagues, friends, and family

• Collaborating on projects with team members

• Creating and sharing presentations, spreadsheets, and documents

• Backing up important files and photos

• Accessing files from any device with internet connection
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Q1. 1. Questions regarding SAP APO GATP
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Q2. Product allocation
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Q3. Product availability check
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Q4. Back order processing
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Q5. Scheduling rules in APO GATP
Ans. 
Scheduling rules in APO GATP determine the sequence in which orders are processed and fulfilled.
• Scheduling rules prioritize orders based on criteria such as delivery date, customer priority, and product availability

• Examples of scheduling rules include FIFO (First In, First Out), LIFO (Last In, First Out), and priority-based sequencing

• Scheduling rules can be customized to meet specific business requirements and optimize
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Q1. What is Regression Testing
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Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
• Regression testing is performed after code changes to verify that the existing functionality still works correctly.

• It helps in identifying any defects introduced due to code changes.

• Regression testing can be automated to save time and effort.

• Examples of regression test
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Q2. What is Agile Methodology
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Agile Methodology is a software development approach that emphasizes flexibility, collaboration, and iterative development.
• Iterative approach to software development

• Emphasizes flexibility and adaptability to change

• Encourages collaboration between cross-functional teams

• Delivers working software in short, frequent iterations

• Involves continuous feedback and improvement
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Q3. Define Maven Cycle
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Maven cycle is the process of building, testing, packaging, and deploying a software project using Maven build tool.
• Maven cycle includes phases like compile, test, package, install, and deploy.

• It starts with compiling the source code, running tests, packaging the application, installing it in the local repository, and deploying it to a remote repository.

• Maven uses a project object model (POM) file to define the project...read more
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Q4. Define Retesting
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Retesting is the process of running tests on previously failed test cases after the defects have been fixed.
• Retesting is done to ensure that the reported defects have been successfully fixed.

• It focuses on the areas where defects were found during initial testing.

• Retesting is usually performed by the same tester who reported the defects.

• Examples: After a bug is fixed, the tester retests the specific test case that origi
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Simple DSA and CS Fundamentals

Q1. CS Fundamentals, Java, OS, DSA and Project-based questions.
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Q1. Managerial and HR Round, basic HR questions and Situational questions by HR
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Q1. Explain dynamic polymorphism
Ans. 
Dynamic polymorphism is the ability of an object to take on multiple forms during runtime.
• It allows objects of different classes to be treated as if they are of the same class.

• It is achieved through virtual functions and inheritance.

• Examples include function overriding and templates in C++.
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Q2. Types of casts in C++
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C++ has four types of casts: static_cast, dynamic_cast, const_cast, and reinterpret_cast.
• static_cast is used for implicit conversions between related types

• dynamic_cast is used for runtime type checking and casting of polymorphic types

• const_cast is used to remove const or volatile qualifiers from a variable

• reinterpret_cast is used for low-level casting between unrelated types

• Examples: static_cast(3.14), dynamic_cast
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Q3. IPC mechanisms in Linux
Ans. 
IPC mechanisms in Linux are used for inter-process communication between processes running on the same system.
• IPC mechanisms include pipes, message queues, shared memory, and semaphores.

• Pipes are used for one-way communication between two processes.

• Message queues allow for asynchronous communication between processes.

• Shared memory allows multiple processes to access the same memory space.

• Semaphores are used for synchro...read more
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Q4. Map vs unordered_map, vector vs list
Ans. 
map and unordered_map are associative containers while vector and list are sequence containers.
• map and unordered_map are used to store key-value pairs while vector and list are used to store sequences of elements.

• map and unordered_map provide faster search and insertion of elements while vector and list provide faster insertion and deletion of elements.

• map and unordered_map use red-black trees and hash tables respectiv...read more
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Q1. Functors in C++, uses
Ans. 
Functors are objects that can be treated as functions in C++. They are used for generic programming and can be passed as arguments.
• Functors are often used in algorithms that require a function object as a parameter.

• They can be used to implement callbacks and event handlers.

• Functors can be used to create custom comparators for sorting algorithms.

• They can also be used to implement function objects for mathematical operat...read more
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Q2. Synchronisation mechanisms
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Q3. Move constructor, rvalues and const
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Q4. Synchronisation of given thread blocks
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Synchronizing thread blocks is important for efficient and correct execution of parallel programs.
• Thread blocks must be synchronized to avoid race conditions and ensure correct program output.

• Synchronization can be achieved using locks, semaphores, or barriers.

• Examples of synchronization include ensuring that shared resources are accessed by only one thread at a time, or that threads wait for each other before proceedi...read more
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Q5. Fault diagnosis on Linux system, gdb experience
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