Ellen's laptop has a built-in 802.11n-capable wireless NIC. The wireless NIC worked perfectly yesterday when she loaned it to her nerdy friend Tom. Today, she cannot access the Internet via her wireless NIC. The NIC is not visible in Network Connections nor is it visible in Device Manager. What should she assume first?

The NIC is disabled in CMOS

Explanation:

CMOS refers to the Complementary Metal Oxide Semiconductor.  It is a technology that is used to generated integrated circuits.

It can be found in various types like microprocessors, batteries, etc

While on the other hand the NIC refers to the network interface controller in which the component of the computer hardware has connected the computer to its network. It can be done via wired and wireless.

Since in the given situation, it is mentioned that Ellen is not able to access the internet through wireless NIC neither it is visible in network connections nor it is shown in device manager so first she assumes that is nic is disabled in CMOS

and the same is to be considered

cyberstalking on the internet means to harass or stalk someone, a group, or an organization. this may include defamation, slander, and false accusations. in many jurisdictions, cyberstalking is a criminal offense. 

on the other hand, cyberbullying focuses more on intimidating, threatening or harassing someone. harmful bullying include posting threats, rumors, and sexual remarks.