Use SAVE when you want to update the lastly preserved or to revise an existing document or file with the latest content.
Whereas
Use SAVE AS when you are creating a new document/file or an existing document/file to a new location. This will keep the original document untouched in its original format and create a new document with a new name.
In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
1. Cybercrime cases pose various kinds of 2. Challenges which requires strengthening of 3. The institutional mechanism. 4. No error