PPG Executive Interview Questions and Answers

Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.

• Testing is done to identify defects or errors in the system.

• It involves executing a system or its component(s) with a set of test cases.

• The goal of testing is to ensure that the system meets the specified requirements and works as expected.

• Testing can be done manually or using...read more

Types of testing include functional, non-functional, manual, automated, regression, performance, and security testing.

• Functional testing ensures that the software meets the specified requirements.

• Non-functional testing checks the software's performance, usability, and security.

• Manual testing is done by a human tester, while automated testing is done by software.

• Regression testing ensures that changes to the software do...read more

Validation is the process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified requirements.

• Validation ensures that the product meets the customer's needs and requirements.

• It is a dynamic testing process that involves executing the software with test data and verifying the output.

• Validation is done after verification to ensure that the product i...read more

ORAN stands for Open Radio Access Network. It is a concept that aims to disaggregate traditional mobile network elements and promote interoperability and innovation.

• ORAN is a concept in the telecommunications industry.

• It aims to separate hardware and software components of mobile networks.

• ORAN promotes interoperability and innovation by allowing different vendors' equipment to work together.

• It enables operators to mix ...read more

Protocol stack in telecom refers to the set of communication protocols used to transmit data over a network.

• The protocol stack is divided into layers, each with its own set of protocols.

• The layers include physical, data link, network, transport, session, presentation, and application.

• Each layer communicates with the layer above and below it, and each layer adds its own header to the data being transmitted.

• Examples of p...read more

7qc tools are used in quality to identify and solve problems in a systematic way.

• Helps in identifying root cause of problems

• Provides a structured approach to problem-solving

• Improves quality and reduces defects

• Increases efficiency and productivity

• Examples include Pareto chart, fishbone diagram, control chart

Cause and effect diagram is a tool used to identify and analyze the potential causes of a problem.

• Also known as fishbone diagram or Ishikawa diagram

• Used in quality control and process improvement

• Identifies root causes of a problem by breaking it down into smaller categories

• Example: A company uses a cause and effect diagram to identify the reasons for low sales. Categories include product, price, promotion, place, peopl...read more