300-425問題集、Cisco実際の試験問題

質問 1

In a warehouse deployment, why is a predictive survey often insufficient?

A. Predictive surveys are more expensive than passive surveys

B. Warehouses do not require Wi-Fi coverage

C. Predictive surveys cannot account for metal racks and variable inventory

D. Warehouses always use only 2.4 GHz Wi-Fi

正解: C

質問 2

An engineer needs a wireless design to provide redundancy for APs at remote sites that are connected to Cisco 3504 Wireless LAN Controllers. The central Cisco 5520 Wireless LAN Controller supports 2000 APs and has 1975 access points associated to it. The engineer decides that not all APs at the remote sites must remain functional in the event of a failure. How does the engineer ensure that the most important access points at the remote sites remain online while not impacting the main site?

A. Enable AP Fallback Mode, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to "high".

B. Enable Global AP Failover Priority, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to "low".

C. Enable Global AP Failover Priority, set the 1975 APs to a priority of "high", and set the 25 most important APs at the remote sites to "critical".

D. Enable AP Fallback Mode, set the 1975 APs to a priority of "high", and set the 25 most important APs at the remote sites to "critical".

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 3

Refer to the exhibit. A consulting engineer is preparing to survey a greenfield deployment for a
6000-sqft building with four floors. To prepare for the predeployment survey, the engineer uses a third-party simulation tool. With the default settings on the tool, the survey report shows that the RF signal extends far outside the building walls or areas where data points were taken. The engineer must configure the tool with site properties based on the provided building and floor specifications. Which change must the engineer make to the survey tool?

A. Increase the Signal Propagation Assessment height.

B. Increase the map dimensions to fit the extended signal.

C. Decrease the Signal Propagation Assessment height.

D. Reduce the AP default power.

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 4

What is the main advantage of using directional antennas in lecture halls?

A. Increased AP throughput

B. Lower power consumption

C. Stronger 2.4 GHz performance

D. Reduced co-channel interference and focused coverage

正解: D

質問 5

Drag and Drop Question
Drag and drop the characteristics from the left onto the correct functionalities on the right.

正解:

Explanation:
Link Aggregation
Link aggregation (LAG) is a partial implementation of the 802.3ad port aggregation standard. It bundles all of the controller's distribution system ports into a single 802.3ad port channel. This reduces the number of IP addresses required to configure the ports on your controller. When LAG is enabled, the system dynamically manages port redundancy and load balances access points transparently to the user.
LAG simplifies controller configuration because you no longer require to configure primary and secondary ports for each interface. If any of the controller ports fail, traffic is automatically migrated to one of the other ports. As long as at least one controller port is functioning, the system continues to operate, access points remain connected to the network, and wireless clients continue to send and receive data.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/74/configuration/guides/consolidated/b_ cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_chapter_010 100001.html

質問 6

During a wireless design, why should DFS (Dynamic Frequency Selection) channels be used cautiously?

A. They can cause interference with Bluetooth devices.

B. They may be subject to radar interference and APs must vacate the channel.

C. They are not supported on 802.11ac.

D. They provide less throughput.

正解: B

質問 7

Which metric best indicates client experience in a WLAN design?

A. SNR

B. Round-trip latency

C. Data rate

D. RSSI

正解: A

質問 8

A network administrator at a large university with multiple campuses uses Cisco 9800 WLCs to manage their wireless network. Recently, the university deployed a new mobility group to improve seamless roaming for users across different campuses. To validate that everything is functioning correctly, which action should the administrator take to identify the reason why the data path is active but the control path is down?

A. Check the mobility status and statistics on the WLC CLI using the show wireless mobility peer ip command and verify that the state is UP for all mobility peers.

B. Inspect show wireless management trustpoint and show crypto pki trustpoints commands to verify the certificate information.

C. Use the show wireless mobility ap-list command on the WLC to ensure the proper addition of access points in the mobility tunnel.

D. Inspect the mobility tunnels by running a capture on the virtual interface, verifying that data and control paths are established and active.

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 9

An engineer is upgrading the legacy APs to 802.11ac Wave 2 capable APs. The existing gigabit uplinked switches provide 802.3at. Which switch limitation is a concern?

A. collision domains

B. high availability

C. interface throughput

D. output power

正解: D

解説: (PassTest メンバーにのみ表示されます)

Cisco Designing Cisco Enterprise Wireless Networks - 300-425 模擬練習