Explain the difference between implicit type conversion and using the cast operator. 2. What is the advantage of using Named constants and how are they different from variables? 3. C++ provides you with two ways of incrementing value of a variable (pre-increment, post-increment). What is the difference between the two? 4. What is the limitation of the extraction operator? 5. When can an input failure occur? 6. In what scenario would you want to use the getline function?