Siemens Salesforce Developer Interview Questions and Answers

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Q1. OOPs concepts and program on linked list reversal and c pointer concepts
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Q1. OOPs concepts,C basis, IPC and signals
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Q1. OOPs concepts, c basics, data structures
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Q1. Share details of your previous job.
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Q2. What are your salary expectations?
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Q3. What is your family background?
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Q4. Why are you looking for a change?
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Q5. Tell me about yourself.
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Q1. What is copy constructor?
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Copy constructor is a special type of constructor which creates a new object as a copy of an existing object.
• Copy constructor is used to initialize a new object as a copy of an existing object.

• It takes an object of the same class as a parameter.

• It is called automatically when a new object is created from an existing object.

• Example: class MyClass { public: MyClass(const MyClass& obj) { // copy constructor logic } };
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Q2. Difference between copy constructor and assignment operator
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Copy constructor is used to create a new object as a copy of an existing object, while assignment operator is used to assign values from one object to another.
• Copy constructor is called when a new object is created from an existing object, while assignment operator is called when an existing object is assigned values from another object.

• Copy constructor creates a new object with its own memory space, while assignment o...read more
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Q3. What is static function
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A static function is a function that is associated with a class rather than an instance of the class.
• Static functions can be called without creating an instance of the class.

• Static functions are commonly used for utility functions that do not require access to instance-specific data.

• Static functions are declared using the 'static' keyword in many programming languages.

• Example: 'Math.max()' in JavaScript is a static fun
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Q4. Write Fibonacci series
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Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with 0 and 1 as the first two numbers in the series

• Add the previous two numbers to get the next number in the series

• Repeat this process to generate the Fibonacci series
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Q5. What is single ton design pattern
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Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
• Ensures a class has only one instance

• Provides a global point of access to that instance

• Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging
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Q1. Testing Technical Skill mentioned in Resume & Which ever need for the project we are going to work on
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Q2. What is Python and its data types
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Python is a high-level, interpreted programming language with dynamic semantics.
• Python has several built-in data types including integers, floats, strings, booleans, and complex numbers.

• It also has built-in data structures like lists, tuples, and dictionaries.

• Python supports object-oriented programming and has a rich standard library.

• Examples: x = 5 (integer), y = 3.14 (float), z = 'hello' (string), a = True (boolean),...read more
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Q3. What is logic building/thinking & where we need to apply this?
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Logic building/thinking is the process of analyzing and solving problems using reasoning and critical thinking skills.
• It involves breaking down complex problems into smaller, more manageable parts

• Identifying patterns and relationships between different pieces of information

• Using deductive and inductive reasoning to draw conclusions

• Applying logical principles to solve problems in various fields such as computer programm...read more
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Q1. Salary Expectations and Negotiations
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Q2. What do you think about your growth after joining to our organisation?
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I believe that joining your organization will provide me with ample opportunities for growth and development.
• I am confident that I will be able to learn and acquire new skills in a dynamic and challenging environment.

• I am excited about the potential for career advancement and the chance to work on innovative projects.

• I look forward to collaborating with talented colleagues and mentors who can guide and inspire my profe...read more
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Q1. What is the concept of virtual inheritance in relation to vtables and vptrs in object-oriented programming?
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Virtual inheritance allows a derived class to inherit from a base class without creating duplicate base class subobjects.
• Virtual inheritance is used to resolve the Diamond Problem in C++ where a class inherits from two classes that have a common base class.

• It ensures that only one copy of the base class is inherited by the derived class.

• Virtual inheritance introduces a virtual base class subobject to the derived class,...read more
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Q2. Explained about vtptr and vtable initialisation and structure
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Q1. What is the implementation of a class for string operations?
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A class for string operations can include methods for concatenation, substring extraction, length calculation, etc.
• Create a class with methods like concatenateStrings, extractSubstring, calculateLength, etc.

• Use string manipulation functions like substring, concat, length, etc. within the class methods.

• Ensure error handling for edge cases like empty strings or out-of-bounds indices.

• Example: class StringOperations { conc...read more
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