Motorola Solutions Backend Developer Interview Questions and Answers

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Q1. What is spring Deference between spring and springboot What is Spring mvc What is Microservices What is difference between monolithic and microservices
Ans. 
Spring is a Java framework for building enterprise-level applications. Spring Boot is a tool for quickly building Spring-based applications.
• Spring provides a comprehensive programming and configuration model for modern Java-based enterprise applications.

• Spring Boot is an opinionated framework that simplifies the Spring application development process.

• Spring MVC is a web framework built on top of the Spring framework.

• Mi...read more
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They asked me to solve 6 coding questions in one hour which doesn't make any sense.

Q1. Implement method chaining in JS
Ans. 
Method chaining allows calling multiple methods on the same object in a single line.
• Create a class with methods that return 'this' to enable chaining

• Each method should modify the object's state and return 'this'

• Example: class Calculator { add(num) { this.result += num; return this; } }

• Example: const calc = new Calculator(); calc.add(5).add(3);
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Q1. Bit manipulation
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Q2. Experience questions
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Q1. How do u find a loop
Ans. 
A loop can be found by iterating over a collection of elements repeatedly until a certain condition is met.
• Iterate over a collection of elements using for loop, while loop, or foreach loop

• Check for a condition to determine when to exit the loop

• Examples: for(int i=0; i
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Q2. How do u know know merge LL
Ans. 
Merge LL refers to merging two linked lists into a single sorted linked list.
• Use a dummy node to start the merged list

• Compare the values of the nodes from both lists and add the smaller one to the merged list

• Move the pointer of the merged list and the list from which the node was added
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Q1. Experience discussion
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Q2. Project discussion
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Q1. What is structure padding ?
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Structure padding is the process of adding empty bytes to a structure to align its data members on memory boundaries.
• Padding is added to ensure that each data member in a structure starts at a memory address that is a multiple of its size.

• Padding is necessary for performance optimization and to prevent memory access violations.

• For example, if a structure has a char followed by an int, padding may be added between them
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Q2. What is translation unit ?
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A translation unit is a source file along with all the headers and source files included in it.
• Translation unit is the smallest unit of compilation in C++.

• It consists of a source file and all the header files and source files included in it.

• Each translation unit is compiled separately before being linked together.

• Translation units help in organizing and modularizing code.

• Example: If a.cpp includes b.h and c.cpp, then t...read more
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Q1. Basic Coding questions
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Q1. Lifestyle of software development
Ans. 
Software development lifestyle involves continuous learning, problem-solving, collaboration, and adapting to new technologies.
• Continuous learning is essential to stay updated with new technologies and best practices.

• Problem-solving skills are crucial for debugging and finding efficient solutions to complex problems.

• Collaboration with team members helps in sharing knowledge, brainstorming ideas, and improving code quali...read more
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Q2. Real time example of class inheritance
Ans. 
Class inheritance allows a subclass to inherit properties and methods from a superclass.
• Subclass can access all public and protected members of superclass.

• Subclass can override methods of superclass.

• Example: Animal class can be superclass, with Dog and Cat classes as subclasses inheriting properties and methods.
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Q3. Agile methodologies and waterfall methodology
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Q1. What is asynchronous And synchronous
Ans. 
Asynchronous and synchronous are programming concepts that determine how tasks are executed.
• Synchronous tasks are executed one after the other, in a sequential manner.

• Asynchronous tasks can be executed simultaneously, without waiting for the previous task to complete.

• Synchronous tasks are easier to understand and debug, while asynchronous tasks are more efficient and can improve performance.

• Examples of synchronous task...read more
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Q1. All the OOPs concepts
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Q1. Scrum & Agile Methodologies questions on previous projects
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Q1. Technology and programming questions
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Q1. Strengths and weaknesses, Professional details
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