What are lexical errors?

and fi (a==b)

will it be a lexical error or a syntactical error?

Which term describes encryption that protects the entire original ip packet's header and payload?

The process of analyzing data to extract information not offered by the raw data alone; it uncovers trends and patterns using techniques such as classification (which assigns records to predefined classes), estimation (which determines values for an

For a string w, recall that wR denotes the reverse of w, i. e., the string obtained by reversing the order of the symbols of w. For a language L, define S (L) = {w∈L:wR∈L}. If L is regular, is S (L) also regular? Prove your claim.

A windows firewall policy file has what file extension?

Knowing to whom you are giving information over the Internet involves which safeguard? (Select all that apply.) Check the URL in your browser. Check the site in a reliable search engine. Check to see if you were redirected to another site.

What is the purpose of lookup tables in spreadsheet software? A. They allow the user to retrieve information from another location in a table. B. They allow the user to lock cells that contain information that remains consistent. C.

What are some reasons a person might choose to remain anonymous on the internet?

Which of the following sets of statements creates a multidimensional array with 3 rows, where the first row contains 1 value, the second row contains 4 items and the final row contains 2 items? a.

Does anybody know if that apple watch is actually worth what it costs?

Given the business rule "an employee may have many degrees," discuss its effect on attributes, entities, and relationships. (Hint: Remember what a multivalued attribute is and how it might be implemented.)