FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Portable devices have a software-controlled switch that disables all wireless functionality. What is the name of this software-controlled switch? Instead of a physical switch, some portable devices have a software-controlled switch called Airplane Mode. When in Airplane Mode, all wireless functionality is disabled.

Detailed explanation-2: -Symptoms. Turning on airplane mode (Figure 1) disables all the wireless connections on your computer (Wi-Fi, Bluetooth, or Mobile Broadband).

Detailed explanation-3: -Directional and omnidirectional are two type of antennae commonly used in wireless networks.

Detailed explanation-4: -A Trojan disguises itself as desirable code or software. Once downloaded by unsuspecting users, the Trojan can take control of victims’ systems for malicious purposes.

Detailed explanation-5: -Hub. Hubs connect multiple computer networking devices together. A hub also acts as a repeater in that it amplifies signals that deteriorate after traveling long distances over connecting cables.