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| Section | Weight | Objectives |
|---|---|---|
| Network Resiliency and Device Virtualization | 8% | - Redundancy and High Availability
|
| Authentication and Authorization | 8% | - AAA Services
|
| Troubleshooting | 6% | - Fault Isolation and Diagnostics
|
| Managing and Monitoring | 6% | - Network Operations
|
| Switching | 14% | - Layer 2 and Layer 3 Switching
|
| Security | 9% | - Campus Security
|
| Connectivity | 8% | - Campus Connectivity Technologies
|
| WLAN | 17% | - Wireless LAN Technologies
|
| Performance Optimization | 7% | - Optimization Techniques
|
| Routing | 13% | - Routing and Network Services
|
| Network Stack | 4% | - Networking Fundamentals
|
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NEW QUESTION # 141
A customer is using a legacy application that communicates at layer-2. The customer would like to keep this application working across the campus which is connected via layer-3. The legacy devices are connected to Aruba CX 6300 switches throughout the campus.
Which technology minimizes flooding so the legacy application can work efficiently?
Answer: A
Explanation:
EVPN-VXLAN is a technology that allows layer-2 communication across layer-3 networks by using Ethernet VPN (EVPN) as a control plane and Virtual Extensible LAN (VXLAN) as a data plane3. EVPN- VXLAN can be used to support legacy applications that communicate at layer-2 across different campuses or data centers that are connected via layer-3. EVPN-VXLAN minimizes flooding by using BGP to distribute MAC addresses and IP addresses of hosts across different VXLAN segments3. EVPN- VXLAN also provides benefits such as loop prevention, load balancing, mobility, and scalability3.
References: https://www.arubanetworks.com/assets/tg/TG_EVPN_VXLAN.pdf
NEW QUESTION # 142
A client is connecting to 802.1X SSID that has been configured in tunnel mode with the default AP-group settings.
After receiving Access-Accept from the RADIUS server, the Aruba Gateway will send Access-Accept to the AP through which tunnel?
Answer: C
Explanation:
Explanation
According to the Aruba Documentation Portal1, 802.1X is a standard for port-based network access control that uses a RADIUS server to authenticate and authorize wireless clients. 802.1X can be configured in different modes, such as bridge mode, tunnel mode, or split tunnel mode.
Option C: GRE tunnel
This is because option C shows how to configure an SSID in tunnel mode with the default AP-group settings on an Aruba switch. In tunnel mode, all client traffic from the access points is tunneled back to the controller and the controller would in turn put the client traffic onto the network2. The GRE protocol is used to encapsulate and decapsulate the traffic between the access points and the controller3.
Therefore, option C is correct.
1:
https://www.arubanetworks.com/techdocs/AOS-CX/10.06/HTML/5200-7696/GUID-581D2976-694B-46C7-849
https://community.arubanetworks.com/discussion/bridge-and-tunnel-mode 3:
https://www.twingate.com/blog/ipsec-tunnel-mode
NEW QUESTION # 143
What is the order of operations tor Key Management service for a wireless client roaming from AP1 to AP2?
Answer:
Explanation:
1 - Client Associates and authenticates to AP1
2 - Cache the client's information
3 - Generate Parawise Master Key keys for AP1's neighbors
4 - Get AP1 neighbour AP list
5 - Share Parawise Master Key along with VLAN and User Role to target APs
NEW QUESTION # 144
In a CX 6300 24G, how does a server DAC behave in the port by default for interface 1/1/26?
Answer: C
Explanation:
On Aruba CX 6300 switches (including the 24G model), when a Direct Attach Cable (DAC) or transceiver that is not officially supported by Aruba is inserted - even if it is operationally compatible - the port will remain administratively down by default for safety and compliance.
To allow the port to operate with a third-party or unsupported DAC, the following command must be configured globally allow-unsupported-transceiver Once enabled, the switch permits the interface to bring up the link using the unsupported DAC or transceiver.
NEW QUESTION # 145
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?
Answer: A
Explanation:
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.
NEW QUESTION # 146
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