300-420 Question 175
Select 3An enterprise is designing a new branch office network and plans to use 4G/5G cellular connectivity as a backup WAN link. Which considerations should be prioritized to ensure optimal performance and reliability of the 4G/5G link?
- A
Evaluate signal strength and coverage of 4G/5G services at the branch location.
- B
Ensure the 4G/5G modem supports the latest LTE and 5G NR standards.
- C
Enable QoS policies designed for high-bandwidth fixed-line connections.
- D
Consider deploying multiple SIMs from different providers for redundancy.
- E
Avoid using antenna placement as it does not significantly impact performance.
Show answer and explanation
Correct answers: A, B, D
Explanation
When designing a network with 4G/5G as a backup link, it is important to assess signal strength, use modern hardware standards, and implement redundancy strategies to ensure reliability and performance. QoS policies must be tailored to the characteristics of cellular networks, and careful antenna placement is essential for signal optimization.
- A. Correct.
Signal strength and coverage are critical for ensuring reliable 4G/5G connectivity. Poor signal quality can lead to reduced performance or connection drops.
- B. Correct.
Using modems that support the latest LTE and 5G NR standards ensures compatibility with advanced features, better speeds, and lower latency.
- C. Incorrect.
QoS policies designed for fixed-line connections may not be optimized for cellular networks, which typically experience variable latency and bandwidth.
- D. Correct.
Deploying multiple SIMs from different providers provides redundancy, increasing the reliability of the backup link.
- E. Incorrect.
Antenna placement has a significant impact on performance as it directly affects signal strength and quality, making this option incorrect.