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| Section | Weight | Objectives |
|---|---|---|
| Managing and Monitoring | 6% | - Network Operations
|
| Network Stack | 4% | - Networking Fundamentals
|
| Connectivity | 8% | - Campus Connectivity Technologies
|
| Troubleshooting | 6% | - Fault Isolation and Diagnostics
|
| Performance Optimization | 7% | - Optimization Techniques
|
| Switching | 14% | - Layer 2 and Layer 3 Switching
|
| Routing | 13% | - Routing and Network Services
|
| Authentication and Authorization | 8% | - AAA Services
|
| WLAN | 17% | - Wireless LAN Technologies
|
| Security | 9% | - Campus Security
|
| Network Resiliency and Device Virtualization | 8% | - Redundancy and High Availability
|
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問題 #105
You are are doing tests in your lab and with the following equipment specifications:
* AP1 has a radio that generates a 16 dBm signal.
* AP2 has a radio that generates a 13 dBm signal.
* AP1 has an antenna with a gain of 8 dBi.
* AP2 has an antenna with a gain of 12 dBi. The antenna cable for AP1 has a 4 dB loss. The antenna cable for AP2 has a 3 dB loss.
What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for AP1?
答案：B
解題說明：
The Equivalent Isotropic Radiated Power (EIRP) is the measured radiated power of an antenna in a specific direction. It is also called Equivalent Isotropic Radiated Power. It is the output power when a signal is concentrated into a smaller area by the Antenna. The EIRP can take into accountthe losses in transmission line, connectors and includes the gain of the antenna.It is represented in dB2. The formula for EIRP is:
EIRP=PTLc+Ga
where PT is the output power of the transmitter in dBm, Lc is the cable and connector loss in dB, and Ga is the antenna gain in dBi.
For AP1, the EIRP can be calculated as:
EIRP=164+8=20 dBm
Therefore, the answer B is correct.
References:1: Aruba Campus Access documents and learning resources2: EIRP Calculator - Effective Isotropic Radiated Power
問題 #106
You need to have different routing-table requirements with Aruba CX 6300 VSF configuration Assuming the correct layer-2 VLAN already exists how would you create a new OSPF configuration for a separate routing table?
答案：D
解題說明：
Explanation
To create a new OSPF configuration for a separate routing table, you need to create a new OSPF process ID with vrf name. This will create a new OSPF instance that is associated with the specified VRF and its routing table. The other options are incorrect because they either do not create a new OSPF instance or do not associate it with a VRF. References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch03.html
問題 #107
A company deployed Dynamic Segmentation with their CX switches and Gateways After performing a security audit on their network, they discovered that the tunnels built between the CX switch and the Aruba Gateway are not encrypted. The company is concerned that bad actors could try to insert spoofed messages on the Gateway to disrupt communications or obtain information about the network.
Which action must the administrator perform to address this situation?
答案：A
解題說明：
Explanation
To address the situation of unencrypted tunnels between the CX switch and the Aruba Gateway, the administrator must enable Enhanced security on both devices. Enhanced security is a feature that provides encryption and authentication for GRE tunnels between CX switches and Aruba Gateways using IPSec.
Enhanced security can be enabled globally or per tunnel on both devices using CLI commands or Web UI options. The other options are incorrect because they either do not provide encryption or authentication for GRE tunnels or do not exist as features. References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch05.html
https://www.arubanetworks.com/assets/ds/DS_AOS-CX.pdf
問題 #108
A company deployed Dynamic Segmentation with their CX switches and Gateways After performing a security audit on their network, they discovered that the tunnels built between the CX switch and the Aruba Gateway are not encrypted. The company is concerned that bad actors could try to insert spoofed messages on the Gateway to disrupt communications or obtain information about the network.
Which action must the administrator perform to address this situation?
答案：C
解題說明：
PAPI is the protocol that is used to establish tunnels between the CX switch and the Aruba Gateway for Dynamic Segmentation 1 . By default, PAPI uses a simple checksum to verify the integrity of the messages, but it does not encrypt the payload 2 . This could expose the network to spoofing or replay attacks by malicious actors. To address this situation, the administrator must enable Enhanced PAPI security, which uses AES-256 encryption and HMAC-SHA1 authentication to protect the tunnel traffic 2 . Enhanced PAPI security can be enabled on the CX switch by using the command system papi enhanced-security enable 3 .
This will ensure that the tunnels built between the CX switch and the Aruba Gateway are encrypted and authenticated.
問題 #109
Which feature allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter?
答案：D
解題說明：
Authentication survivability is a feature that allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter.
Authentication survivability enables the Gateway cluster to cache successful authentication requests from the RADIUS server and use them to authenticate clients when the RADIUS server is unreachable. Authentication survivability also allows clients to use MAC caching or MAC authentication bypass (MAB) methods to access the network when the RADIUS server is down.
問題 #110
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順便提一下，可以從雲存儲中下載Fast2test HPE7-A01考試題庫的完整版：https://drive.google.com/open?id=1ySKelDlDbuAaWNhAHd5eQfc8F5rYrvlC