In contrast to earlier Wi-Fi speeds, which of the following BEST describes the antenna and channelization properties used in 802.11n?

Bethany received an email from one of her colleagues with an unusual attachment named smime.p7s. She does not recognize the attachment and is unsure what to do. What is the most likely scenario?

A. This is an encrypted email message. B. This is a phishing attack. C. This is embedded malware. D. This is a spoofing attack.

Answer the following statements true (T) or false (F)

1. Void functions may have arguments. 2. Functions are executed in the order in which they are defined. 3. A precondition is a condition that must be true before the function is called. 4. The values in the function data area are kept after the function ends. 5. In the following program outline the name var1 is visible (can be referenced) in the function fun. int fun (int a, int b); int main () { int var1; … } int fun (int a, int b) { … }