Western Digital Interview Questions, Process, and Tips for Experienced

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. Tell me about yourself.
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Q2. Questions on storage devicem.
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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
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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
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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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Basic is important be str

Be through in what you know

Sharp to the point so sensible

Q1. Expectation of salary
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Q2. Previously mentioned experience
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Q1. I got an link to mail which contain 25 C language MCQ's . Most of the questions are medium level and some are hard level.
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Q1. They asked all the concepts of C and given some small programming tasks too
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Q1. Asked about some C questions & linked list concepts and some programs too.(Delete a node without head pointer)
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Q1. Here some extent concentrated on C & remaining 70% is purely on previous projects and on micro controllers and on some on RTOS multi-threading and communication protocols
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Q1. 60% is purely on technical skills and 40% is on manager questions like related to some general questions which will test logical skills and remaining are 1. why should I hire you 2. How you wanna see your...read more
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