Coaxial Cable Concepts and Applications

The video tutorial explains the concept and structure of coaxial cables, highlighting their historical use in internet connections. It details the components of coaxial cables, including the copper wire, insulator, and metal sheath, and explains their shared axis of symmetry. The tutorial also discusses the advantages of coaxial cables, such as reduced interference and reliable data transmission over long distances, despite their higher cost compared to twisted pair cables.

What was the main issue with using twisted pairs over long distances?

• They cannot transmit data at all.

• They are difficult to install.

• They cause significant interference.

• They are too expensive.

What type of internet connection historically used coaxial cables?

• Satellite internet

• Fiber optic internet

• Dial-up internet

• Wireless internet

What is the core material found in the center of a coaxial cable?

• Steel

• Aluminum

• Plastic

• Copper

Which component of the coaxial cable is responsible for insulation?

• The outer wrap

• The metal sheath

• The plastic layer

• The copper wire

What is the purpose of the metal sheath in a coaxial cable?

• To transmit signals

• To provide structural support

• To prevent data loss

• To block external interference

What does the 'Co' in 'coaxial' signify?

• Opposite

• Parallel

• Together

• Separate

How do the layers of a coaxial cable relate to each other?

• They are placed in parallel lines.

• They share the same axis of symmetry.

• They are twisted around each other.

• They are randomly arranged.

Why is coaxial cable more expensive than twisted pair cable?

• It is harder to manufacture.

• It has more layers and a metal sheath.

• It uses more copper.

• It requires special installation tools.

What is a key advantage of coaxial cables over twisted pairs?

• They are more flexible.

• They can transmit data more reliably over long distances.

• They are easier to install.

• They are cheaper.

Why is cable internet faster than dial-up?

• It uses wireless technology.

• It has less interference over long distances.

• It uses more advanced software.

• It is supported by satellites.