100-150 Question 127
Select 3A small business office network includes IoT devices such as smart thermostats and security cameras, computers, mobile devices, an IP phone, a printer, and a server. The network administrator notices that the IoT devices are consuming excessive bandwidth and causing performance issues for critical devices like the server and IP phone. Which of the following actions should the administrator take to address the issue?
- A
Enable Quality of Service (QoS) to prioritize traffic for critical devices such as the server and IP phone.
- B
Place the IoT devices on a separate VLAN to isolate their traffic from critical devices.
- C
Upgrade the network switch to one with higher port capacity to handle the increased traffic.
- D
Disable internet access for all IoT devices to eliminate their bandwidth consumption.
- E
Implement rate limiting on the IoT devices to restrict their maximum bandwidth usage.
Show answer and explanation
Correct answers: A, B, E
Explanation
The best approach to resolving the bandwidth consumption issue caused by IoT devices is to use a combination of network management techniques. Enabling QoS prioritizes traffic for critical devices, separating IoT devices onto a VLAN isolates their traffic, and applying rate limiting ensures IoT devices do not consume excessive bandwidth. These actions maintain a functional and optimized network for all devices while preserving the usability of IoT devices.
- A. Correct.
Enabling Quality of Service (QoS) ensures that critical devices like the server and IP phone have prioritized traffic, reducing the impact of bandwidth-heavy IoT devices.
- B. Correct.
Placing IoT devices on a separate VLAN isolates their traffic, preventing them from interfering with communication between critical devices on the primary VLAN.
- C. Incorrect.
Upgrading the network switch increases port capacity but does not address the specific issue of bandwidth congestion caused by IoT devices.
- D. Incorrect.
Disabling internet access for all IoT devices might resolve the bandwidth issue but would render the IoT devices non-functional, which is not a practical solution.
- E. Correct.
Implementing rate limiting directly on the IoT devices restricts their bandwidth usage, minimizing their impact on the network while keeping them functional.