Maxim Integrated Interview Questions, Process, and Tips

Q1. Please explain your day to day activities
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Q2. Tell me about a challenging situation
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Q1. Are you comfortable with this role, general corporate behaviour questions, background information
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Q2. Puzzles
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Q1. Test creation, case study
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Q2. Python, selenium, SQL
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Q1. Corporate behaviour questions, 2 puzzle questions
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Q1. Compensation discussion
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Q1. Merge intervals ( Leetcode)
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Q2. Buy and sell stocks II (Leetcode)
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Q3. Runtime polymorphism and how it works vptr and vtable
Ans. 
Runtime polymorphism in C++ is achieved through virtual functions, vptr (virtual pointer), and vtable (virtual table).
• Runtime polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Virtual functions are declared in a base class and overridden in derived classes to achieve polymorphism.

• vptr is a pointer that points to the vtable of an object, allowing dynamic binding of virtual ...read more
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Q4. Which version of c++ you use
Ans. 
I primarily use C++17, but I am familiar with earlier versions as well.
• I am comfortable working with features introduced in C++17 such as structured bindings and constexpr if

• I have experience with earlier versions like C++11 and C++14

• I stay updated with the latest features and improvements in C++ standards
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Q5. Design patterns
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Q6. Have you used any windows api's?
Ans. 
Yes, I have used Windows API's extensively in my previous projects.
• I have used Windows API's for tasks such as creating windows, handling messages, and interacting with system resources.

• Examples include using functions like CreateWindow, SendMessage, and ReadFile.

• I have also worked with specific Windows API's like Winsock for networking and WinINet for internet-related tasks.
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Q1. One debugging question was given which will test knowledge on copy constructor, copy assignment, their return type move constructor, move assignment shallow copy, deep copy runtime polymorphism pointer ini...read more
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Q2. What is dynamic_cast where it can fail and what will happen in that case
Ans. 
dynamic_cast is a C++ operator used for safe downcasting of pointers and references in polymorphic classes.
• dynamic_cast is used to safely downcast a pointer or reference from a base class to a derived class.

• It can fail if the object being casted is not of the target type, in which case it returns a null pointer for pointers or throws a std::bad_cast exception for references.

• Dynamic_cast can only be used with pointers o...read more
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Q1. Same debugging question while making it advance how will you handle in case there is data member of pointer to int array in deep copy how will you ensure that it does delete previous data in case new opera...read more
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Q2. What is union in c++
Ans. 
Union in C++ is a data structure that allows storing different data types in the same memory location.
• Unions are similar to structures but all members share the same memory location.

• Only one member of a union can be accessed at a time.

• Unions are useful when you need to store different data types in the same memory space.

• Example: union MyUnion { int i; float f; };

• Example: MyUnion u; u.i = 10; // Accessing integer member
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Q3. What is weak pointer
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Weak pointer is a type of smart pointer in C++ that does not control the lifetime of the object it points to.
• Weak pointers are used to break circular references in shared pointers.

• They do not increase the reference count of the object.

• They are used in scenarios where the object may be deleted while there are still weak pointers pointing to it.
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Q4. What are processes and threads memory is allocated to what process or threads? what is mutex and semaphore how many threads/process can you launch at a time what is meaning of core in 4-core system what is...read more
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Processes and threads are units of execution in a computer system. Memory is allocated to processes. Mutex and semaphore are synchronization mechanisms. Core refers to a processing unit in a multi-core system. Context switching is the process of switching between different processes or threads.
• Processes are independent units of execution with their own memory space and resources.

• Threads are lightweight units of executi...read more
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Q5. What is this pointer tell me situation where only this pointer can be used nothing else will work
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Q1. What can you share about your experience?
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Q2. What are the specific responsibilities associated with the role, and how does the workflow typically function?
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Q1. It was little technical with the Excel and Power Bi
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60 mins test which comprises of 2 sections, Technical and aptitude. Both sections have a time limit of 30 mins. The technical questions were easy to medium and i could finish it in time but i needed more time for finishing the aptitude, a total 40 questions.

Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Experience with programming languages like Java, Python, and C++

• Completed internships at tech companies such as Google and Microsoft
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Q2. Find the voltage through the resistor
Ans. 
To find the voltage through a resistor, use Ohm's Law: V = I * R
• Use Ohm's Law: V = I * R, where V is the voltage, I is the current flowing through the resistor, and R is the resistance of the resistor

• If the current flowing through the resistor is 2A and the resistance is 5 ohms, the voltage would be V = 2 * 5 = 10V

• Make sure to use the correct units for current (Amps) and resistance (Ohms) to get the voltage in Volts
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Q3. The interviewer just kept on adding an extra resistor in parallel and in series to the resistor and asked me to find the voltage
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Q4. He then asked a question on transient analysis ie 2 capacitors connected in series with a switch which closes at t>0 with the voltage across the 2 capacitors being 3 v and asked to find the total voltge
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Q5. Explain the working of a capacitor and resistor and relation between resistance and length , area
Ans. 
Capacitors store electrical energy while resistors limit the flow of current. Resistance is directly proportional to length and inversely proportional to area.
• Capacitors store electrical energy by creating an electric field between two conductive plates separated by an insulating material

• Resistors limit the flow of current in a circuit by dissipating energy in the form of heat

• The resistance of a resistor is directly pr...read more
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The interview included a basic coding exercise, followed by a CV screening and questions related to Object-Oriented Programming, such as how virtual functions are implemented by the compiler and how polymorphism operates.