____ packet filters are useful for completely blocking traffic from a subnet or other network.

A technician is tasked with replacing the wireless network card in a laptop. After performing the replacement tasks, the laptop cannot pick up any wireless signals. Which of the following is the MOST likely cause of the problem?

A. The software drivers were not installed. B. The antenna leads were not reconnected. C. The new network card was not seated properly. D. There are no wireless signals available.

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

1. The items in an array are commonly called elements. 2. The array visualization class is designed as an aid for learning how arrays work. 3. The random number function is used to randomly choose an element from an array. 4. You can only remove an item that is currently in an array by replacing it with some other value.