Ethernet cables are built from...

a.
Twisted pair cables

b.
Power cables

c.
Coaxial cables

d.
Fiber optic cables

a. Twisted pair cables

The correct answer is a. Twisted pair cables.

The correct answer is a. Twisted pair cables. Ethernet cables are commonly built from twisted pair cables, also known as Cat5, Cat5e, or Cat6 cables. These cables consist of pairs of insulated copper wires that are twisted together to reduce electromagnetic interference (EMI) and crosstalk. The twisted pairs help maintain signal integrity and provide a reliable and high-speed data transmission for Ethernet networks.

To confirm this answer, you can obtain the information from reliable sources such as networking websites, electronics stores, or technology books. These sources would provide detailed explanations and specifications about Ethernet cables, including the use of twisted pair cables.

Alternatively, you can search for information using search engines or online encyclopedias by typing the question "What are Ethernet cables made of?" or "What type of cables are used in Ethernet networks?" The search results will likely include articles, forum discussions, or official documentation that can confirm the correct answer.