The variables must begin with a letter of the alphabet, a dollar sign or a underscore. After the first character you may add numbers as well. All special characters besides the dollar sign and underscore and not allowed in variables.
Answer:
Request for information (RFI)
Explanation:
Request for Information is a business process document that contains information about an organization's capability to deliver solutions to a potential client. The RFI document will contain information that will help for decision making by clients. Other similar business documents in this line are Request for tender (RFT), request for quotation (RFQ).
Answer:
Here!
Hope this helps. Please mark brainliest!
Virus such as a Trojan or Worm, and can cause network crashes.