If you precede a subquery by the ____________________ operator, the condition is true only if it satisfies all values produced by the subquery.

Case-Based Critical Thinking Questions ? Case 7-1 Ted knows that macros can be helpful to him in his work with Excel spreadsheets, but he also knows they have their hazards, so he comes to you for guidance about what kind of security settings he should put in place, and at what times. ? ? While just getting his feet wet with Excel, you suggest to Ted that he might want to begin without having his installation of Excel have any macros run at all. Which of the following options would he select in the Trust Center?

A. Disable all macros without notification B. Cancel all macros C. Disable a macro with notification D. Disable all macros except digitally signed macros

What statement regarding denial-of-service (DoS) attacks is accurate?

a. A denial-of-service attack occurs when a MAC address is impersonated on the network. b. A denial-of-service attack prevents legitimate users from accessing normal network resources. c. A denial-of-service attack is generally a result of a disgruntled employee. d. A denial-of-service attack is no longer a major concern due to the increased throughput available on most networks.