HP HPE7-A01 Practice Test - Questions Answers, Page 8

MAC Caching is a feature that allows a guest user to bypass the captive portal page after the first authentication based on their MAC address1MAC Caching can be enabled under the splash page settings in Aruba Cloud Guest2MAC Caching can improve the user experience and reduce the network overhead by eliminating the need for repeated authentication.

This is the most likely cause of the issue where the access points in a Microbranch group are online in Aruba Central, but no VPN tunnels are forming. A Microbranch group is a group that contains both APs and Gateways and allows them to form VPN tunnels for secure communication. The VPN tunnels use GRE (Generic Routing Encapsulation) as the encapsulation protocol and IPSec as the encryption protocol. If there is a firewall blocking GRE traffic between the AP and the gateway, the VPN tunnels cannot be established. The other options are incorrect because they either do not affect the VPN tunnel formation or do not apply to a Microbranch group.

Reference: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/gateways/microbranch.htm https://www.arubanetworks.com/assets/tg/TB_ArubaGateway.pdf

These are two correct statements regarding OSPFv2 route redistribution for Aruba OS CX switches. Route redistribution is a process that allows routes from one routing protocol or source to be injected into another routing protocol or destination. OSPFv2 is a link-state routing protocol that supports route redistribution from various sources, such as connected, static, BGP, etc. The ''redistribute connected'' command will redistribute all connected routes for the switch, including local loopback addresses, into OSPFv2. The ''redistribute static route-map connected-routes'' command will redistribute all static routes that have a matching permit statement in the route map named ''connected-routes'' into OSPFv2. The other statements are incorrect because they either do not reflect the correct behavior of route redistribution commands or do not exist as valid commands.

Reference: 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

The other options either use more commands or do not create the VRF or the VLAN.

Option C uses the following commands:

vrf eng: This command creates a VRF named eng and enters the VRF configuration mode1.

vlan 25: This command creates a VLAN with ID 25 and enters the VLAN configuration mode2.

interface vlan 25: This command creates an SVI on VLAN 25 and enters the interface configuration mode3.

ip address 10.105.43.1/24 ipv6 address fd00:5780::102d:4df6/64 vrf attach eng: This command assigns an IPv4 address of 10.105.43.1 with a subnet mask of 255.255.255.0 and an IPv6 address of fd00:5780::102d:4df6 with a prefix length of 64 to the SVI, and attaches it to the VRF eng.

OCSP is a protocol that allows clients to query the CA or a trusted responder for the status of a specific certificate.OCSP requests and responses are smaller and faster than CRLs, and they can provide real-time information about the revocation status of a certificate12. CRLs are lists of all revoked certificates that are downloaded from the CA.CRLs can present issues, as they can become outdated and have to be downloaded frequently13.Therefore, OCSP reduces latency between the time a certificate is revoked and validation reflects this status.

Reference:1https://sectigostore.com/blog/ocsp-vs-crl-whats-the-difference/2https://www.keyfactor.com/blog/what-is-a-certificate-revocation-list-crl-vs-ocsp/3https://www.fortinet.com/resources/cyberglossary/ocsp

An inbound ACL is applied to traffic entering a port or VLAN.An outbound ACL is applied to traffic leaving a port or VLAN4. To deny ping sourcing from the user VLAN to the IT management VLAN, an inbound ACL on the user VLAN should be used to filter icmp echo traffic toward the IT management VLAN.Icmp echo-reply traffic is not needed to be allowed because it is already permitted by default5.

Reference:4https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-9B8F6E8F-9C7A-4F0D-AE7B-9D8E6C5B6A7F.html5https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-0C3A9D0F-6E5B-4E1A-AF3C-8D8B2F9C1A7B.html

A session-based ACL is applied to traffic entering or leaving a port or VLAN based on the direction of the session initiation. To allow ping from any wired station to wireless clients but not vice versa, a session-based ACL should be used to deny icmp echo traffic from any source to any destination, and then permit icmp echo-reply traffic from any source to user destination. The user role represents wireless clients in AOS 10.

Reference: https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-BD3E0A5F-FE4C-4B9B-BE1D-FE7D2B9F8C3A.html https://techhub.hpe.com/eginfolib/networking/docs/arubaos-switch/security/GUID-EA0A5B3C-FE4C-4B9B-BE1D-FE7D2B9F8C3A.html

A. DMO is configured individually for each SSID in use in the network. DMO is a feature that allows the AP to convert multicast streams into unicast streams over the wireless link. This enhances the quality and reliability of streaming video, while preserving the bandwidth available to the non-video clients. DMO is configured individually for each SSID in use in the network, as different SSIDs may have different multicast requirements. According to the Aruba document Configuring WLAN Settings for an SSID Profile, one of the steps to configure DMO is: Dynamic multicast optimization: Select Enabled to allow IAP to convert multicast streams into unicast streams over the wireless link. Enabling Dynamic Multicast Optimization (DMO) enhances the quality and reliability of streaming video, while preserving the bandwidth available to the non-video clients. The other options are incorrect because:

B. The AP does not use QoS to provide equal air time for multicast traffic. QoS is a feature that prioritizes different types of traffic based on their importance and latency sensitivity. QoS does not affect how multicast streams are transmitted over the wireless link.

C. DMO is not configured globally for each SSID in use in the network. DMO is configured individually for each SSID, as different SSIDs may have different multicast requirements.

D. The controller does not convert multicast streams into unicast streams. The AP does the conversion, as it is closer to the wireless clients and can optimize the transmission based on the client capabilities and channel conditions.