Questions

1. What is the name of the function used to see whether a file was successfully opened?
2. What is the default mode for opening a file?
3. What happens if you attempt to read a non-numeric value into a numeric variable from a file?
4. What types of error could occur if you unsafely use the read() or write() functions?
5. Does /= operator() add a / to your path for you automatically?
6. What is the stem of the following path—/home/user/test.txt?
7. What is the parent directory of the following path—/home/user/test.txt?