Cisco® 300-425 Exam Practice Questions (P. 3)

GPT-4o - Answer

The correct dBm range for ensuring voice readiness in Cisco Prime during the deployment of Cisco IP phones has raised some discrepancies. User insights suggest that Cisco Prime may display settings such as -75 dBm to -67 dBm, which diverges from the options presented here. It's possible that there are varying default values across different versions of Cisco Prime or specific configurations. Always refer to the latest Cisco documentation or directly check settings within your own Cisco Prime environment to verify these specific values, ensuring alignment with the latest standards and practices for optimal voice quality.

GPT-4o - Answer

The correct selection of 'metal door' as causing significant signal attenuation is backed by common knowledge included in many study guides. These guides clearly illustrate that compared to other typical materials like glass or cinder block walls, metal structures are highly effective in attenuating wireless signals, typically listed as having around 6 dB of attenuation—a figure indicative of substantial interference in signal propagation. This understanding is crucial for designing robust wireless networks where signal strength and reliability are key.

GPT-4o - Answer

In the context of verifying voice service support in a wireless network, ensuring a sufficient RSSI level and a low retransmission rate is crucial. For voice services, an RSSI of at least -67 dBm is typically required for adequate signal quality and client connectivity. Concurrently, keeping the retransmission rate below 15% is essential to reduce latency and maintain sound call quality, ensuring seamless voice communications. Interestingly, some guidelines suggest a maximum retransmission rate of 20% can also be acceptable, indicating that settings might vary based on specific deployment criteria or the frequency band utilized.

GPT-4o - Answer

For a reliable voice deployment in a wireless network, setting the cell boundary at -67 dBm is crucial. This signal strength at the edges ensures continuous coverage and effective voice communication, as recommended in Cisco's VoWLAN deployment guidelines. It highlights the importance of maintaining adequate signal strength, particularly for voice applications, where consistent and high-quality connectivity is essential. This approach prevents any potential voice call drops or quality degradation, fostering a robust wireless voice environment.

GPT-4o - Answer

To correctly identify end-to-end network performance using Ekahau Site Survey, an active ping survey is indeed the appropriate choice. This type of survey measures the actual performance of the network including factors like packet loss and error rates, essential for understanding network efficiency and functionality across the entire system. Contrary to the initial indication of a spectrum analysis, which focuses mainly on identifying RF issues, a comprehensive active ping survey assesses the practical throughput and response times, which are critical for full network validation.