Gs Caltex Interview Questions and Answers

Q1. Tell me about yourself.
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Q1. Tell me about yourself
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Q1. Java Full stack Experience based discussion
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Q2. Docker, Kubernetes etc.
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Q1. Coding in Java, oops collection problem solving
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Q2. Sql salary related questions
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Q1. Manager and behavior
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Q1. Salary kitna loge bhai
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Q1. Asking the current location, notice period and expectation..
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Q1. As my professional asking about material knowledge, procedure for receiving and issuing. Minimum Stock maintenance, Storage of materials. Safety precaution for Chemicals storage, MSDS.. Warehouse , yard ma...read more
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Your Branch questions and some basics questions of computer.

Q1. 1):- What Is 3-phase ? Different Between single phase and 3 phase supply ? 2):- What is SCR,Resistor,capicator and inductor ? relation between them ? 3):- Different types of Transmission lines ? 4):- W...read more
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Q1. About yourself? About your background? About your projects ? about your Future goal ? like that basics only.
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C programming coding

Q1. Introduction , Family background , why iasys, why should hire you, salary expectation
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Q1. Introduction, in which programming language are you comfortable( 45 min)
Ans. 
I am comfortable with C, C++, and Python for embedded software development.
• Proficient in C for low-level programming

• Experienced in C++ for object-oriented design

• Skilled in Python for scripting and automation tasks
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Q2. What is class object, inheritance, function overloading ,function overriding, difference between encapsulation and abstraction, volatile keyword
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Class object is an instance of a class, inheritance allows a class to inherit properties and methods from another class, function overloading is defining multiple functions with the same name but different parameters, function overriding is redefining a function in a subclass, encapsulation is bundling data and methods that operate on the data into a single unit, abstraction is hiding the implementation details and sho...read more
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Q3. What is pointer and it's type
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Types of pointers include null pointers, void pointers, function pointers, and array pointers.

• Example: int *ptr; // pointer to an integer variable

• Example: char *str = 'hello'; // pointer to a character array
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Q4. Static function with implementation , virtual function with code, multilevel inheritance implementation
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Q5. Projects deep, what challenges faced and how to overcome, your role in project
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Q1. Technical 2 (1 hour)
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Q2. Introduction, what is Embedded system, Project deep
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Q3. What is semaphore and mutex, binary semaphore, thread and process
Ans. 
Semaphores and mutex are synchronization mechanisms in multithreading. Threads are lightweight processes, while processes are independent execution units.
• Semaphore: used to control access to a shared resource by multiple threads. Example: controlling access to a printer in a networked system.

• Mutex: similar to a semaphore but only allows one thread to access a resource at a time. Example: protecting a critical section o...read more
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Q4. How to stored data in memory , Interrupt service routine ,interrupt latency, UART,SPI,
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Q5. Watchdog timer, 8051 microcontroller architecture, volatile keyword, static function, global and local variable
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