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NEW QUESTION # 30
What is me recommended configuration to ensure link aggregation is consistent in a campus topology using VSX with two aggregation switches and downlinks to access switches?
- A. Use the command "vsx-sync active-gateways" under the VSX context.
- B. Use the command "vsx-sync mclag-interfaces" under the VSX context.
- C. Use a custom LACP hash algorithm for improved load Balancing.
- D. Keep the MTU values at the default setting for GRE and VXLAN communications
Answer: B
Explanation:
When configuring Virtual Switching Extension (VSX) in a campus topology for link aggregation across two aggregation switches, it is important to synchronize Multi-Chassis Link Aggregation Group (MC-LAG) interfaces. The command "vsx-sync mclag-interfaces" ensures that the state and configuration of MC-LAG interfaces are synchronized between the two VSX-linked switches,providing consistent link aggregation and preventing any loops or mismatched configurations that might occur if the interfaces were not in sync.
NEW QUESTION # 31
An administrator is creating a fabric withNetConductor in HPE Aruba Networking Central Considering an EVPN VXLAN fabric, click on the most appropriate layer to be configured as a Rome-Reflector Persona.
Answer:
Explanation:
Explanation:
In the context of an EVPN VXLAN fabric, the Route-Reflector Persona is most appropriately configured at theServices Aggregationlayer. This layer is responsible for interconnecting different network services and typically includes more robust, higher-capacity devices capable of handling the route-reflection functions for EVPN VXLAN.
In an Aruba Networks fabric, route reflectors are used to optimize the distribution of BGP routes. The Services Aggregation layer, which is centrally located in the network topology, is best suited for this role due to its high availability and ability to efficiently manage routes between the core and access layers.
Therefore, if you were to click on the image provided, you would select the Services Aggregation layer to configure the Route-Reflector Persona.
NEW QUESTION # 32
A customer's infrastructure is set up to use both primary and secondary gateway clusters on the SSID profile based on best practices What is a valid cause tor having an equal spirt in APs connected to the primary and secondary gateway clusters?
- A. The secondary gateway cluster is homogeneous
- B. The primary gateway cluster is up. out some APs are unable to reach the primary gateway cluster. These APs would connect to the secondary gateway cluster
- C. The secondary gateway cluster is heterogeneous
- D. The primary gateway cluster is up. out some APs cannot reach the secondary gateway cluster. These APs would connect to the secondary gateway cluster
Answer: B
Explanation:
In a high availability setup where both primary and secondary gateway clusters are present, APs are typically designed to connect to the primary cluster. If the APs are equally split between the primary and secondary, this may indicate that some APs cannot reach the primary cluster due to connectivity issues or reachability constraints, thus falling back to the secondary cluster.
NEW QUESTION # 33
You are troubleshooting a WLAN deployment with APs and gateways set up with an 802.1X tunneled SSIO.
End-users are complaining that they can't connect to die enterprise SSID. Which possible AP tunnel states could be the cause of the Issue? (Select two.)
- A. SM_STATE_RE KEYING
- B. SM_STATE_SURVIVED
- C. SM_STATE_SURVIVING
- D. SM_STATE_CONNECTED
- E. SM_STATE_CONNECTING
Answer: A,E
Explanation:
When troubleshooting a WLAN with 802.1X tunneled SSID issues, AP tunnel states indicate the status of the connection between the AP and the gateway/controller. The states 'SM_STATE_REKEYING' and
'SM_STATE_CONNECTING' could indicate transitional states where the connection has not been fully established, hence users might face issues connecting to the SSID. 'SM_STATE_REKEYING' implies that the AP is in the process of re-establishing encryption keys, while 'SM_STATE_CONNECTING' indicates that the AP is trying to establish a connection with the controller or gateway. These states could lead to temporary connectivity issues until the state transitions to 'SM_STATE_CONNECTED'.
NEW QUESTION # 34
You are testing the use of the automated port-access role configuration process using RadSec authentication over VXLAN. During your testing you observed that the RadSec connection will fan during the digital certificate exchange What would be the cause of this Issue?
- A. The RADIUS TCP packets are Being dropped and the TLS tunnel is not established.
- B. The RadSec server was defined on the switch using an IPv6 address that was unreachable
- C. Tracking mode was set to "dead-only", and the RadSec server was marked as unreachable.
- D. The switch is configured to establish a TLS connection with a proxy server, not the radius server.
Answer: A
Explanation:
During the testing of RadSec authentication over VXLAN, if the RadSec connection fails during the digital certificate exchange, it typically indicates an issue with the establishment of the TLS tunnel, which is required for RadSec's secure communication. The failure of TLS tunnel establishment can occur due to RADIUS TCP packets being dropped, preventing the secure exchange of digital certificates necessary for RadSec authentication. The other options, such as IPv6 address reachability, tracking mode settings, and proxy server misconfiguration, are not directly related to the failure of the TLS tunnel establishment during the certificate exchange process
NEW QUESTION # 35
Your customer asked for help to apply an ACL for wireless guest users with the following criteria:
* Wi-Fi guests are on VLAN 555
* allow internet access
* only allow access to public DNS servers
* deny access to all internal networks except for any DHCP server
These session ACLs are already present in the CLI of the mobility gateway group:
You have access to the CLl. Which user role meets all the criteria?
- A.
- B.
- C.
- D.
Answer: A
Explanation:
Based on the criteria provided for wireless guest users, the correct user role configuration must allow internet access, only allow access to public DNS servers, deny access to all internal networks except for any DHCP server, and place the Wi-Fi guests on VLAN 555. The ACLs must permit services necessary for basic internet access (such as DNS and DHCP) and block access to internal networks.
Option A satisfies these criteria with the following configurations:
user-role "WiFi-guest": This defines the role for Wi-Fi guests.
access-list session dhcp-acl: This applies the access list that likely permits DHCP, which is necessary for guests to obtain an IP address.
access-list session dns-acl: This applies the DNS access list, which likely restricts guests to using public DNS servers.
access-list session internal-networks: This applies the internal networks access list, which denies access to internal networks.
vlan 555: This sets the VLAN for Wi-Fi guests to 555.
Options B, C, and D are incorrect because they includeaccess-list session allowallwhich would permit all traffic, contradicting the requirement to deny access to all internal networks.
NEW QUESTION # 36
Which data transmission method provides the most efficient use of airtime for VoIP traffic?
- A. TWT
- B. MU-MIMO
- C. FDMA
- D. OFDM
Answer: B
Explanation:
MU-MIMO (Multi-User, Multiple Input, Multiple Output) provides the most efficient use of airtime for VoIP traffic among the options listed. MU-MIMO allows multiple users to receive multiple data streams simultaneously, improving the overall efficiency of the network, especially in dense environments where VoIP applications need consistent and reliable connectivity.
NEW QUESTION # 37
Exhibit.
What is me expected behavior for ARP traffic sent from H1?
- A. A2 willsend the ARP traffic out of ports 1/1/1 and 1/1/3.
- B. A2 will drop the ARP traffic.
- C. A2 willflood the ARP traffic out of all interfaces.
- D. A2 will send the ARP traffic out of ports 1/1/1-1/1/4.
Answer: C
Explanation:
In a VXLAN environment, unknown unicast traffic, such as ARP requests from H1, which does not have a specific destination MAC address learned by the switch A2, will be flooded out of all interfaces. This flooding behavior is necessary because A2 needs to ensure that the ARP requestreaches its intended destination, which might be on any of the interfaces. It's a part of the standard behavior of switches to handle ARP traffic when the destination hardware address is unknown.
NEW QUESTION # 38
A customer is evaluating device profiles on a CX 6300 switch. The test device has the following attribute:
* MAC address=81:cd:93:13:ab:31
The test device needs to be assigned the "lot-prod'' role, in addition the "lot-default" role must be applied for any other device connected lo interface 1/1/1. This is a lab environment with no configuration of any external authentication server for the test.
Given the configuration example, what is required to meet this testing requirement?
- A. Enter the command "port-access fallback-role lot-default globally
- B. Enter the command "port-access onboarding-method precedence" to set device profiles with a lower precedence.
- C. Enter the command "port-access device-profile mode block-until-profile-applied" globally.
- D. Enter the command "pot-access device-profile mode block-until-profile-applied"" for interface 1/1/1.
Answer: A
Explanation:
The fallback role is used as a default role in the absence of a specified role or when an authentication server is not available. Given the scenario, where the test device with MAC address 81:cd:93:13:ab:31 needs to be assigned to "iot-prod" and other devices to "iot-default", and considering there is no external authentication server configured for the test, the appropriate action would be to set a global fallback role that applies to all devices connecting to the network. This ensures that any device that does not match the specific device profile will inherit the "iot-default" role. Since the configuration for a specific MAC address (81:cd:93:xx:xx:xx) to associate with the "iot-prod" role is already in place, setting the fallback role globally accommodates the requirement for other devices.
NEW QUESTION # 39
You recently added ClearPass as an authentication server to an HPE Aruba Networking Central group.
RADIUS authentication with Local User Roles (LUR) works fine Out the same access points cannot use Downloadable User Roles (DUR).
What should he corrected in this configuration to fa the issue with DUR?
- A. Add a new Enforcement Policy of type ''WEBAUTH''on ClearPass and associate it with the matching service on ClearPass
- B. Add the correct IP addresses or IP subnets of the Network Access Devices(NADs) under the "Devices" tabon ClearPass
- C. Add the correct values for "CPPM username" and "CPPM Password" m the authentication server configuration on HPEAruba Networking Central
- D. Replace the AP's expiree digital certificate using the "crypto pki-import pem serverCert" command.
Answer: B
Explanation:
For Downloadable User Roles (DUR) to function correctly with ClearPass, the Network Access Devices (NADs) need to be correctly defined in ClearPass under the "Devices" tab. This ensures that ClearPass can identify and communicate with the NADs to deliver the appropriate user roles. If the NADs are not correctly defined, ClearPass will not be able to provide the DURs to the access points for enforcement. This is a common configuration step that is required to integrate ClearPass with network devices for advanced role-based access control.
NEW QUESTION # 40
A client connecting to a tunneled open network is receiving the wrong VLAN Your customer has a gateway and has sent over a packet capture from a switch port mirror taken from the upstream switch with a packet capture from the IPsec tunnel and the GRE tunnel to help Identify the VLAN being sent from the controller to the AP.
Where will you see the VLAN assignment?
- A. VLAN tag assignment win be included in the port mirror
- B. VLAN tag assignment win not he captured in any of the packet captures
- C. IPsec tunnel will include the VLAN tag assignment
- D. The GRE tunnel will include the VLAN lag assignment
Answer: A
Explanation:
In a packet capture from an upstream switch port mirror, you would see the VLAN assignment. The port mirror captures the traffic as it is on the network, including any VLAN tags. GRE or IPsec tunnels encapsulate the original packet, including VLAN tags, but the VLAN information is not visible within the encapsulation headers.
NEW QUESTION # 41
An OSPF router has learned a pain 10 an external network by Doth an E1 and an E2 advertisement Both routes have the same path cost Which path will the router prefer?
- A. The router will prefer the E2 path.
- B. The router will prefer the E1 path.
- C. Both routes will be suppressed until the path conflict has been resolved.
- D. The router will use Doth paths equally utilizing ECMP.
Answer: B
Explanation:
In OSPF, when a router learns about an external network through both E1 and E2 advertisements, and if both have the same path cost, the router will prefer the E1 path. This is because E1 routes consider both the external cost to reach the external network and the internal cost to reach the ASBR, providing a more comprehensive metric. E2 routes only consider the external cost and ignore the internal cost to the ASBR, which could potentially lead to suboptimal routing. Therefore, the router will choose the E1 path due to its more accurate representation of the total path cost.
NEW QUESTION # 42
You configured a WPA3-SAE with the following MAC Authentication Role Mapping inCloud Authentication and Policy:
With further default settings assume a new Android phone is connected to the network. Which role will the client be assigned after connecting forthe first time?
- A. byod
- B. unmatched-device
- C. lot-local
- D. client will be rejected network access
Answer: B
Explanation:
The configuration shown in the third exhibit details a client role mapping that associates different client profile tags with specific client roles. When a new device, such as an Android phone, connects to the network, it will be profiled and assigned a role based on the mappings defined. If the device does not match any predefined profiles, it would be assigned the "unmatched-device" role. This is under the assumption that default settings are in place and the client does not match the criteria for any of the specific roles like "byod", "iot-internet", or
"iot-local". Therefore, an Android phone connecting for the first time and not matching any specific profile tag would be assigned to the "unmatched-device" role.
NEW QUESTION # 43
An AOS 10 multi-site deployment has sites with AP-only bridged SSlDs and other sites with APs and gateways operating tunneled SSiDs. Client session state sync errors exist between secure lab environments and public -facing areas at several sites.
What is causing the issues?
- A. The DTLS connections are down between APs in the lab and APs in public areas
- B. The affected clients are associated with an SSID with 11r and 11k disabled.
- C. The sites with issues are the overlay AP with gateway sites because the connection to HPE Aruba Networking central is interrupted
- D. The sites with issues are the AP-only deployments because the connection to HPE Aruba Networking Central is interrupted
Answer: C
Explanation:
In a multi-site deployment with a mix of bridged and tunneled SSIDs, if there are session sync errors between different areas, it could be due to connectivity issues with the central management platform, which in the case of Aruba, is likely HPE Aruba Networking Central. This interruption could cause inconsistencies in session states across the network.
NEW QUESTION # 44
An ACME company employee complained about a recent poor-quality VoIP call while moving aroundtheir office environment HPE Aruba Networking Central reported a fair UCC score for this callwhile your VoIP engineer reported that their systems reported a MOS of 2,3. The VoIP devices are operatingover the 5GHz frequency band.
What are the possible contributing factors? (Select two.)
- A. There was localized interference at the caller's location
- B. 802.tr is enabled in the WLAN Security settings.
- C. The client roamed into an area that continuously operates Zigbee.
- D. 802.1K is disabled in the WLAN Security settings
- E. Coverage AP deployment plans generally don't support enough cell overlap for VoIP.
Answer: C,E
Explanation:
VoIP quality can be negatively impacted by insufficient cell overlap in AP deployment plans, which can cause poor handoffs between APs as a user moves around. This results in a degraded VoIP experience. Additionally, roaming into an area with continuous Zigbee operation can cause interference with the 5GHz frequency band, further contributing to poor VoIP call quality. The Zigbee communication protocol operates on the same frequency band as Wi-Fi and can introduce noise and interference, which leads to a reduced MOS score, as reported by the VoIP engineer.
NEW QUESTION # 45
A customer is planning to add loT devices that connect wirelessly to the existing 802.1X SSlD. The customer will use ClearPass to authenticate the IoT devices by MAC address but other devices will still need to authenticate by only 802 1X Exhibit.
The customer provided the current configuration and reported their non-loT 802. IX devices are no longer able to connect. Which configuration change can be made to fix the issue?
- A. Remove mac-authentication from the WLAN configuration
- B. Modify opmode wpa3-aes-gcm-256 to opmode wpa2-aes
- C. Modify max-authentication failures to 0.
- D. Add i2-autn-fairtnrougn to the WLAN configuration
Answer: A
Explanation:
The existing configuration for the WLAN ssid-profile has enabled MAC authentication which, while suitable for IoT devices that may not support 802.1X, can interfere with the normal 802.1X authentication process for other devices. By removing themac-authenticationdirective from the WLAN configuration, the non-IoT
802.1X devices should be able to connect without issues as the authentication process will not be disrupted by MAC authentication checks. This adjustment ensures that the WLAN ssid-profile is correctly aligned with the authentication requirements for both IoT and non-IoT devices within the network environment, conforming to the best practices for mixed-device WLAN configurations.
NEW QUESTION # 46
Your customer added third-party USB dongles to the USB ports of their AOS 10 access points. The customer uses AP-615 and AP-635 Each AP is connected with a Cat 6A cable to a CX 6300F Class 4 PoE switch All APs are in the same group in HPE Aruba Networking Central and share the same configuration However, many of the dongles do not come up.
Which option will solve this issue?
- A. Move the AP-635 access points to a different group in Central to configure the dongles separately from the AP-615.
- B. Replace the Class a PoE switches with Class 6 PoE switches.
- C. Perform a "poe disable" followed by a "poe enable" for the switch ports which connect to the APs so that the APs reboot.
- D. Create two separate service profiles in the loT tab of the Central configuration settings.
Answer: B
Explanation:
USB dongles often require additional power, which may exceed the power delivery capabilities of Class 4 PoE switches. Aruba AP-615 and AP-635 are designed to work with USB dongles that require additional power for proper operation. Since the Cat 6A cable can support higher power levels, replacing the Class 4 PoE switches with Class 6 PoE switches, which can deliver higher power, should resolve the issue with the dongles not powering up.
NEW QUESTION # 47
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