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C++ Interview Questions and Answers Test 3 PDF Download

C++ interview questions with answers, c++ test 3 to practice c++ questions for executive interview preparation. Learn c++ on com interface, iunknown interface questions and answers for jobs.

FAQs: C++ Test 3

Question: What is COM interface?

Answer:

A COM interface is a set of related methods with well defined contract without implementation.

Question: What is Iunknown interface?

Answer:

Iunknown is an interface from which all other interfaces are derived. It defines the three methods as QueryInterface, AddRef and Release.