Test your knowledge of 5G topics

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5g technology is driving the mobile market and — quickly bleeding over into networking certifications examsEverywhere one turns today, there is a blizzard of advertising that one vendor or another is offering 5G and they are offering it in a form (whether that be coverage, implementation, etc.) “better” than others. As the adoption of this technology grows, it is only natural that topics related to it will find their way into networking-related certification exams from numerous vendors.

How much do you know about 5G and how well can you answer questions about basic 5G concepts and processes? What follows is a self-test of 25 questions based that will help you gauge how well you understand the fundamentals of 5G technology. In all cases, pick the best answer(s) to each question. The answers appear at the end of the questions. Good luck!

1. Which technology is used to direct radio waves to a target by shaping the radio waves to point in a specific direction?
A. Main-lobbing
B. Multipath propagation
C. Nonspatial multiplexing
D. Beamforming

2. What is the latency between the user device and the cell tower referred to as?
A. Provider latency
B. Hard latency
C. Air latency
D. Double back latency

3. Which type of transmission system has only one antennae used to transmit and one antennae used to receive?
A. MIMO
B. SISO
C. FDMIMO
D. MU-MIMO

4. 5G is the next iteration (not necessarily a replacement) of which preceding technology?
A. LTE-M
B. 5G NR
C. 4G LTE
D. NGMN

5. A 5G network is comprised of networks of up to three different types of cells. Low-band 5G uses which frequency?
A. 600-700 MHz
B. 500-600 MHz
C. 400-500 MHz
D. 300-400 MHz

6. What is the new physical layer associated with 5G?
A. FireWire
B. 5G New Radio
C. MNO
D. NEM

7. 5G can be significantly faster than 4G, delivering up to which of the following Mbps average data rates?
A. 25
B. 50
C. 100
D. 256

8. With 5G, download speeds will be available up to what rate?
A. 8 Gbps
B. 10 Gbps
C. 15 Gbps
D. 20 Gbps

9. What have so far replaced turbo codes in 5G eMBB control channels and on the physical broadcast channel?
A. Rapid codes
B. Twin codes
C. Polar codes
D. Timer codes

10. Which type of MIMO allows multiple devices to simultaneously receive multiple data streams?
A. PU-MIMO
B. SU-MIMO
C. MU-MIMO
D. SP-MIMO

11. The fastest 5G implementation uses short range transmissions and is known as?
A. mmWave
B. LoRaWAN
C. MIMO
D. MulteFire

12. Mid-band 5G uses which frequency range?
A. 1.5-2.3 GHz
B. 2.3-3.5 GHz
C. 2.5-3.7 GHz
D. 2.8-4.7 GHz

13. In the United States, which entity auctions spectrums to mobile network operators (MNOs)?
A. FTC
B. FCC
C. NHTSA
D. Department of Justice

14. Which technology uses 5G as a progression from 4G LTE with faster connections, higher throughput, and more capacity?
A. eMBB
B. NSW5
C. DCB
D. ITP

15. Which of the following is an architecture for the network that enables the multiplexing of virtual and independent logical networks on the same physical network infrastructure?
A. Network Slicing
B. Complex Partaking
C. System Allocation
D. Arranged Division

Please visit GoCertify to attempt the remaining 10 questions of this quiz.


ANSWERS

1. D — Beamforming is used to direct radio waves to a target by shaping the radio waves to point in a specific direction.
2. C — The latency between the user device and the cell tower referred to as air latency.
3. B — A SISO (Single Input, Single Output) transmission system has only one antennae used to transmit and one antennae used to receive.
4. C — 5G is the next iteration of 4G LTE (Long Term Evolution).
5. A — Low-band 5G uses the 600-700 MHz frequency.
6. B — 5G New Radio (5G NR) is the new physical layer associated with 5G.
7. C — 5G can be significantly faster than 4G, delivering up to 100 Mbps average data rates.
8. D — With 5G, download speeds will be available up to 20 Gbps.
9. C — Polar codes have so far replaced turbo codes in 5G eMBB control channels and on the physical broadcast channel.
10. C — MU-MIMO (Multi User-Multiple Input Multiple Output) allows multiple devices to simultaneously receive multiple data streams.
11. A — The fastest 5G implementation uses short range transmissions and is known as mmWave.
12. C — Mid-band 5G uses the 2.5-3.7 GHz frequency range.
13. B — In the United States, the FCC (Federal Communications Commission) auctions spectrums to mobile network operators.
14. A — Enhanced Mobile Broadband (eMBB) uses 5G as a progression from 4G LTE with faster connections, higher throughput, and more capacity.
15. A — Network Slicing is an architecture for the network that enables the multiplexing of virtual and independent logical networks on the same physical network infrastructure.

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Emmett Dulaney

ABOUT THE AUTHOR

Emmett Dulaney is an associate professor and the author of numerous certification study guides, including the CompTIA A+ Complete Deluxe Study Guide, Second Edition (ISBN: 978-1-118324066).

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