Describe the difference between > and >>, and then describe <. Explain what the sequence << means to the shell.
What will be an ideal response?
> redirects standard output to the specified file, creating it if needed.
>> redirects standard output to the specified file, but appends the new material to the existing content of the file.
< redirects standard input so that the program reads the specified file's content as if it had been typed directly on the keyboard.
<< is used to create a here document in shell scripts, allowing a sequence of lines to be fed to a program as if they had been typed on the keyboard.
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To create a digital signature, a sender first takes the original plaintext message and runs it through a_______, which is a mathematical calculation that gives the message a_______.
a) key function, key value. b) signature function, signature value. c) hash function, hash value. d) None of the above.
Uppercase characters are mathematically greater than lowercase characters.
Answer the following statement true (T) or false (F)
Which of the following statements regarding IPv6 subnetting is NOT accurate?
a. IPv6 addressing uses no classes, and is therefore classless. b. IPv6 does not use subnet masks. c. A single IPv6 subnet is capable of supplying 18,446,744,073,709,551,616 IPv6 addresses. d. The largest IPv6 subnet capable of being created is a /64.
The ________ keyboard shortcut duplicates a selection from the original location and places it in the Clipboard.
What will be an ideal response?