3.1.3 - 3.1.4 Network & Internet Technology

Open Ended

What is meant by “network media”?

Open Ended

Name the two main types of networking media.

Multiple Choice

Which of the following is NOT a type of networking media?

• Twisted-pair cable

• Microwave transmission

• Operating system

• Fiber-optic cable

Open Ended

State one feature of wired transmission media.

Open Ended

List three common types of wired networking media.

Multiple Choice

Which of the following is an advantage of wired media?

• Less secure

• Works only over short distances

• Confined and directed signals

• Susceptible to interference

Open Ended

Why are the wires in twisted-pair cable twisted together?

Open Ended

What type of connector is commonly used with twisted-pair networking cables?

Multiple Choice

Which category of twisted-pair cabling is regular telephone cable?

• Cat 3

• Cat 5

• Cat 6

• Cat 7

Open Ended

What was coaxial cable originally developed for?

Open Ended

State one advantage of coaxial cable compared to twisted-pair.

Multiple Choice

Which connector is commonly used with coaxial cables in cable TV?

• RJ-11

• SC

• F connector

• RJ-45

Open Ended

How does fiber-optic cable transmit data?

Open Ended

What is one advantage and one disadvantage of fiber-optic cables?

Multiple Choice

Fiber-optic cables are commonly used for:

• Home telephone wiring

• Internet backbone connections

• Cable TV only

• Local area networks only

Open Ended

Which type of cable has the highest bandwidth and lowest attenuation?

Multiple Choice

Which cable type is the easiest to install and cheapest?
A.
B.
C.D.

• Fiber-optic

• Coaxial

• Twisted-pair

• Satellite

Open Ended

Why is twisted-pair cable more affected by external magnetic fields compared to coaxial or fiber-optic cables?

Open Ended

Give two features of wireless networking media.

Open Ended

Name three common types of wireless networking media.

Multiple Choice

Which of the following is a disadvantage of wireless networking media?

• Requires cables

• Less secure than wired media

• Only used for short distances

• Always expensive

Open Ended

What is a “cell” in cellular networks?

Open Ended

What device routes calls from cell towers to the recipient’s phone network?

Multiple Choice

When a user moves out of one cell into another during a call, what happens?
A.
B. C.
D.

• The call ends

• The call is passed automatically to the next tower

• The phone switches to fiber-optic mode

• The signal is lost permanently

Open Ended

Why must microwave signals travel in a straight line?

Open Ended

What is the main drawback of geosynchronous satellites for real-time communication?

Multiple Choice

Which satellite type is most often used for GPS?

• LEO

• MEO

• GEO

• LTE

Open Ended

Why is infrared transmission limited to short distances?

Open Ended

Give one example of a device that still uses infrared transmission today.

Multiple Choice

Which type of wireless transmission is commonly used in remote controls?
A.
B. C. D.

• Cellular radio

• Microwave

• Infrared

• Fiber-optic