Cisco® 300-425 Exam Practice Questions (P. 1)
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Question #1
A network engineer is preparing for an office site survey with a height of 2.5 meters. Which three components are recommended to complete the survey? (Choose three.)
- AUse a battery pack to power APs.Most Voted
- BUse a drawing of the office space to draw AP and client placements.Most Voted
- CUse DoS attack on APs while measuring the throughput.
- DUse APs with directional antennas.
- EUse APs with external antennas.
- FUse APs with built-in antennas.Most Voted
Correct Answer:
ABF
ABF

Opting for a battery pack while performing an office site survey saves the hassle of seeking power outlets and offers flexibility in AP placement. Furthermore, using a drawing helps visualize and optimize the placement of APs and clients, ensuring comprehensive wireless coverage. Lastly, selecting APs with built-in antennas, instead of those with external or directional variants, suits typical office environments where the focus is on broad, even coverage rather than targeted range, making it easier to manage and adjust during the survey.
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Question #2
An engineer is designing a wireless network that will support many different types of wireless clients. When conducting the survey, which client must be used to ensure a consistent experience for all of the wireless clients?
- Athe client that has the highest RF properties
- Bthe client that is used most by the company
- Cthe client that is used least by the company
- Dthe client with the worst RF characteristicsMost Voted
Correct Answer:
B
B

In designing a wireless network aimed at universal compatibility across various client devices, it's essential to base your survey on the client type that dominates usage within the organization. Doing so ensures that the network design will adequately support the majority of your end-users' needs, leading to an effective and efficient network performance. Specific focus on widely used clients enhances overall user satisfaction and network reliability in day-to-day business operations. It's a practical approach that targets optimal performance where it matters most.
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Question #3
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with גˆ’67 dBm signal level for optimal VoWLAN design?
- A6 Mbps on 802.11 bgn
- B24 Mbps on 802.11 bgn
- C12 Mbps on 802.11 anMost Voted
- D24 Mbps on 802.11 an
Correct Answer:
B
B

The correct choice of 24 Mbps on 802.11 bgn is justified for VoWLAN design where high-speed data and voice are critical. This configuration ensures robust connectivity suitable for not only voice communications but also capable of handling video conferencing, which demands higher data rates for optimal performance. The choice of 24 Mbps supports a balance between sufficient bandwidth and better spectral efficiency within the 2.4 GHz band, even though the 5 GHz band is generally recommended for its broader channel availability and reduced interference. When designing systems aimed at supporting both data and voice, setting a higher mandatory rate like 24 Mbps can indeed be essential to maintaining effective communication and overall network performance.
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Question #4
A customer is concerned about mesh backhaul link security. Which level of encryption does the backhaul link use?
- Ahash
- BAES
- CWEP
- D3DES
Correct Answer:
B
B

Absolutely! In the context of mesh networks, the backhaul link, which involves wireless connections between mesh nodes, uses AES (Advanced Encryption Standard) encryption. This means the data passing through the link is always secured via AES, which is known for its robustness and security efficacy in wireless communication frameworks. This makes it a critical security feature for maintaining the integrity and confidentiality of transmitted data.
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Question #5
As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.)
- Amagnetic resonance imaging
- BkitchenMost Voted
- CGamma Knife radiation treatment
- DX-ray radiography
- Epatient roomMost Voted
Correct Answer:
BE
BE

The correct choice for potential sources of 2.4 GHz and 5 GHz RF noise in a hospital setting are kitchens and patient rooms. In kitchens, the interference primarily arises from microwave ovens, which operate at the frequency of 2.4 GHz, directly impacting Wi-Fi communication bands. Patient rooms, on the other hand, are a common source due to the variety of personal electronic devices such as smartphones, tablets, and laptops, all of which use the 2.4 GHz and 5 GHz bands for wireless communication and can create significant RF noise. Understanding these common interference sources helps in optimizing wireless network design and performance in healthcare environments.
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