PCAP-31-03 5.4 Understand Basic Input/output Terminology PCAP-31 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the primary role of the stdin stream in a Python program?

   • ATo manage file handles for open files
   • BTo send program output to the console
   • CTo read input data from the user or another program
   • DTo write error messages to a log file
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2. 7foundation · easy

   Which file opening mode in Python allows writing to a file while preserving its existing content, with new data added at the end?

   • A'w'
   • B'a'
   • C'r+'
   • D'x'
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4. 8foundation · easy

   What is the key difference between text mode and binary mode when opening a file in Python?

   • ABinary mode automatically compresses the data to save space.
   • BText mode is faster than binary mode.
   • CText mode can only be used for reading, while binary mode can be used for writing.
   • DText mode performs encoding and decoding of characters, while binary mode reads and writes raw bytes.
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5. 9foundation · easy

   How does a stream differ from a file handle in Python?

   • AA stream is the abstraction for data flow, while a handle is a specific reference to an open file.
   • BA stream is used only for standard input/output, while a handle is used for files.
   • CA stream is used for reading, while a handle is used for writing.
   • DA stream is an integer, while a handle is an object.
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6. 10foundation · easy

   In Python's I/O system, what does a file handle represent?

   • AThe path to the file on the filesystem
   • BThe actual data stored in the file
   • CAn integer or object that identifies an open file
   • DThe abstraction for the flow of data between the program and the file
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