300-420 Question 172
Select 3An organization is designing a network solution for a remote branch office that requires high-speed internet connectivity with failover capabilities. The office is in a rural location where fiber is unavailable, and traditional broadband options are limited. The design team is considering using 4G/5G technologies. Which two considerations should the design team include in their plan to ensure a reliable and scalable solution?
- A
Implement a dual-SIM router to take advantage of multiple carrier networks for failover.
- B
Use 4G/5G as the primary connection and eliminate any other connectivity options.
- C
Assess the available 4G/5G coverage and signal strength at the branch location.
- D
Design with Quality of Service (QoS) policies to prioritize critical applications over the 4G/5G link.
- E
Avoid using 4G/5G for high-bandwidth applications, as these technologies cannot handle such traffic.
Show answer and explanation
Correct answers: A, C, D
Explanation
When designing a network solution involving 4G/5G, it is important to ensure reliability and scalability by considering failover mechanisms like dual-SIM routers, evaluating coverage and signal strength, and implementing QoS policies to optimize performance. While 4G/5G can handle high-bandwidth applications, redundancy and proper planning are critical for robust network design in rural or limited-connectivity locations.
- A. Correct.
Correct: A dual-SIM router allows failover between multiple carrier networks, improving reliability in case of network outages or weak signal from one carrier.
- B. Incorrect.
Incorrect: Using 4G/5G as the sole connectivity option without redundancy may lead to downtime if the network experiences issues. A backup or additional connectivity option should be considered.
- C. Correct.
Correct: Evaluating 4G/5G coverage and signal strength ensures the selected carrier provides adequate service for the branch location.
- D. Correct.
Correct: QoS policies are essential for prioritizing critical applications, especially when using 4G/5G links with limited bandwidth compared to fiber or broadband connections.
- E. Incorrect.
Incorrect: Modern 4G/5G technologies can support high-bandwidth applications, especially with 5G's enhanced capabilities. The key is to assess bandwidth requirements and plan accordingly.