Telecommunications Wireless Communications 2

Question 1

What cellular generation introduced the concept of mobile data in the US?

Accepted Answer

2G

Answer

1G

Answer

3G

Answer

4G

Question 2

What frequency range does 5G mmWave technology primarily use in the US?

Accepted Answer

24 GHz – 40 GHz

Answer

600 MHz – 2.5 GHz

Answer

3.5 GHz – 6 GHz

Answer

60 GHz – 90 GHz

Question 3

What is a femtocell used for in wireless networks?

Accepted Answer

Extend cellular coverage inside buildings

Answer

Connect towers to the backbone

Answer

Amplify GPS signals

Answer

Manage SIM card authentication

Question 4

What does LTE stand for?

Accepted Answer

Long Term Evolution

Answer

Low Transmission Efficiency

Answer

Licensed Telecom Equipment

Answer

Layered Traffic Engineering

Question 5

Which modulation scheme encodes data by varying signal phase?

Accepted Answer

PSK

Answer

AM

Answer

FM

Answer

PWM

Question 6

What is the purpose of a wireless access point (WAP)?

Accepted Answer

Connect wireless devices to a wired network

Answer

Route traffic between VLANs

Answer

Encrypt VPN tunnels

Answer

Monitor RF spectrum