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Questions and Answers
Shell is a macro processor that allows for interactive or non-interactive command execution.
Shell is a macro processor that allows for interactive or non-interactive command execution.
True
Bash is an open-source version of the Bourne Shell that was first released in 1989.
Bash is an open-source version of the Bourne Shell that was first released in 1989.
True
Scripting allows for automatic execution of commands that would otherwise be executed interactively one-by-one.
Scripting allows for automatic execution of commands that would otherwise be executed interactively one-by-one.
True
Bash scripts are created using text editors such as vim, gedit, and emacs.
Bash scripts are created using text editors such as vim, gedit, and emacs.
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Variables in scripting allow a programmer to store data, alter and reuse them throughout the script.
Variables in scripting allow a programmer to store data, alter and reuse them throughout the script.
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True or false: Local variables are variables that are set by the shell and required for it to function correctly.
True or false: Local variables are variables that are set by the shell and required for it to function correctly.
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True or false: For loop is used to iterate through any given code for any number of supplied items in the list.
True or false: For loop is used to iterate through any given code for any number of supplied items in the list.
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True or false: While loop executes code enclosed within DO and DONE while the specified condition is true.
True or false: While loop executes code enclosed within DO and DONE while the specified condition is true.
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True or false: The until loop does the exact opposite of the while loop.
True or false: The until loop does the exact opposite of the while loop.
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True or false: Variables in scripting allow a programmer to store data, alter and reuse them throughout the script.
True or false: Variables in scripting allow a programmer to store data, alter and reuse them throughout the script.
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Which type of error indicates that only one bit of a given data unit is changed from 1 to 0 or from 0 to 1?
Which type of error indicates that only one bit of a given data unit is changed from 1 to 0 or from 0 to 1?
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What is the main difference between a single-bit error and a burst error?
What is the main difference between a single-bit error and a burst error?
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What can cause changes in the shape of a signal during data transmission?
What can cause changes in the shape of a signal during data transmission?
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Why are burst errors more likely to occur than single-bit errors during data transmission?
Why are burst errors more likely to occur than single-bit errors during data transmission?
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What is the purpose of error detection and correction in data networks?
What is the purpose of error detection and correction in data networks?
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Which type of error is more likely to occur during data transmission?
Which type of error is more likely to occur during data transmission?
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What can cause changes in the shape of a signal during data transmission?
What can cause changes in the shape of a signal during data transmission?
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What is the main purpose of error detection and correction in data networks?
What is the main purpose of error detection and correction in data networks?
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Which concept is central to detecting or correcting errors?
Which concept is central to detecting or correcting errors?
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What is a burst error?
What is a burst error?
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