HCLTech Engineer- Customer Support Interview Questions and Answers

C++ is an extension of C language with object-oriented programming features.

• C++ supports object-oriented programming while C does not.

• C++ has more advanced features like templates, exceptions, and namespaces.

• C++ is more complex and harder to learn than C.

• C++ is used for developing system software, games, and applications.

• C is used for developing operating systems, embedded systems, and device drivers.

Java and C are both programming languages, but differ in syntax, usage, and platform compatibility.

• Java is an object-oriented language, while C is a procedural language.

• Java is platform-independent, while C is platform-dependent.

• Java has automatic memory management, while C requires manual memory management.

• Java has a larger standard library than C.

• C is faster and more efficient than Java for certain tasks, such as system programming.

• Java is commonly used for web development,...read more

Black box testing is a software testing technique that focuses on the functionality of the software without knowing its internal structure.

• Tests are performed based on the software requirements and specifications

• Testers do not have access to the source code or internal structure of the software

• The goal is to identify defects in the software's functionality

• Examples include functional testing, regression testing, and acceptance testing

White box testing is a testing technique that involves testing the internal structure of the software.

• It is also known as clear box testing or structural testing.

• It requires knowledge of the internal workings of the software.

• It involves testing individual components or modules of the software.

• It can be done manually or with the help of automated tools.

• Examples include code coverage testing and path testing.

Allocation refers to the distribution or assignment of resources or tasks.

• Allocation can refer to the allocation of funds, personnel, or equipment.

• In engineering, allocation can refer to the allocation of tasks to different team members.

• Allocation can also refer to the allocation of memory or storage space in computer systems.

An algorithm is a set of instructions designed to solve a specific problem or perform a specific task.

• An algorithm is a step-by-step procedure for solving a problem.

• It is a set of rules or instructions that a computer follows to solve a problem.

• Algorithms are used in programming, mathematics, and many other fields.

• Examples of algorithms include sorting algorithms, search algorithms, and encryption algorithms.