Telecommunications Wireless Communications 3

Question 1

What technology allows multiple users to share the same frequency channel by assigning unique codes?

Accepted Answer

CDMA

Answer

TDMA

Answer

FDMA

Answer

OFDMA

Question 2

What is the purpose of a channel in wireless communications?

Accepted Answer

Define a specific frequency range for transmission

Answer

Encrypt data between endpoints

Answer

Control transmit power levels

Answer

Manage authentication tokens

Question 3

What does OFDM stand for?

Accepted Answer

Orthogonal Frequency Division Multiplexing

Answer

Optical Fiber Data Modulation

Answer

Open Frequency Distribution Method

Answer

Output Frequency Deviation Metric

Question 4

What is the maximum theoretical speed of 802.11ac (Wi-Fi 5)?

Accepted Answer

1.3 Gbps

Answer

150 Mbps

Answer

600 Mbps

Answer

3.5 Gbps

Question 5

What is Bluetooth primarily designed for?

Accepted Answer

Short-range personal area network (PAN) communication

Answer

Long-range WAN connectivity

Answer

Satellite communication

Answer

High-definition video streaming

Question 6

What is RF interference and how does it affect wireless networks?

Accepted Answer

It degrades signal quality and reduces throughput

Answer

It speeds up transmissions

Answer

It strengthens the signal range

Answer

It has no impact on modern Wi-Fi