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A: Symmetric encryption uses a single key that should be kept secret. The same key is used for both encryption and decryption of data.
Answer:
Two hyphen-minus characters (- -)
Explanation:
Using two hyphen-minus characters only, tend to recommend that the rest of the data are arguments and should not be treated as alternatives.
Hence, in this situation, the two characters a user will use to tell the command that a user is complete giving options and that the rest of the data on the command line is arguments is known as "two hyphen-minus characters (- -)"
Explanation:
When the algorithm takes more than one decision before carrying out a task
Answer:
Say you have a key in a dictionary, or a key in a 2-d list. When you insert(), you are destructively iterating the original list and modifying it to reflect the insert() component. In order for the key to get lost you would have to do say insert(len: :1) which would remove the second key and therefore cause it to get "lost" because it will be destructivsly removed from its assignment and replaced by whatever you choose to insert.
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