Compare and contrast the mode operators iosin iosapp and

Question

Question 1. _____ are files to which data is written.

Output files

Input files

Active files

Sequential files

Question 2. When storing and retrieving data, a sequential access file is much like a _____.

floppy disk

book

hard disk

VCR tape

Question 3. Once you finish using a file, you should _____ it.

exit

append

close

output

Question 4. The header file that defines the classes for processing and manipulating files is called the _____.

Question 5. What do the following statements accomplish?

ofstream theFile;

theFile.open( myFile.txt , ios::out);

Opens myFile in read mode

Opens myFile in append mode

Creates an empty file named myFile

Opens a file in input mode to write to

Question 6. When a file is opened in output mode, the file pointer is positioned _____.

at the end of the file

at the beginning of the file

in the middle of the file

after the file header

Question 7. Which of the following functions should be used to determine if a file was successfully closed?

is_active

is_open

is_closed

is_ready

Question 8. What is the data hierarchy arranged from largest to smallest?

File, field, record, byte, bit

File record, field, bit, byte

File, record, field, byte, bit

Record, file, field, bit, byte

Question 9. To use an input file, the program must include _____.

fstream

instream

outstream

filestream

Question 10. Which of the following is not true about files?

C++ views each file as a sequential stream of bytes.

Files are opened by creating objects of stream classes.

Member functions of stream objects can be applied to file streams.

istream, ostream, and iostream are derived from ifstream, ofstream, and fstream, respectively.

Question 11. Compare and contrast the mode operators ios::in, ios::app, and ios::out. Provide a C++ code segment that illustrates the use of these mode operators.