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Free HPE7-A01 Exam Braindumps (page: 5)

Page 4 of 30
PDF with 119 Questions

When setting up an Aruba CX VSX pair, which information does the Inter-Switch Link Protocol configuration use in the configuration created?

  1. QSVI
  2. MAC tables
  3. UDLD
  4. RPVST+

Answer(s): B

Explanation:

The information that the Inter-Switch Link Protocol configuration uses in the configuration created is B. MAC tables.
The Inter-Switch Link Protocol (ISL) is a protocol that enables the synchronization of data and state information between two VSX peer switches. The ISL uses a version control mechanism and provides backward compatibility regarding VSX synchronization capabilities. The ISL can span long distances (transceiver dependent) and supports different speeds, such as 10G, 25G, 40G, or 100G1. One of the data components that the ISL synchronizes is the MAC table, which is a database that stores the MAC addresses of the devices connected to the switch and the corresponding ports or VLANs. The ISL ensures that both VSX peers have the same MAC table entries and can forward traffic to the correct destination. The ISL also synchronizes other data components, such as ARP table, LACP states for VSX LAGs, and MSTP states.



What is true regarding 802.11k?

  1. It extends radio measurements to define mechanisms for wireless network management of stations
  2. It reduces roaming delay by pre-authenticating clients with multiple target APs before a client roams to an AP
  3. It provides mechanisms for APs and clients to dynamically measure the available radio resources.
  4. It considers several metrics before it determines if a client should be steered to the 5GHz band, including client RSSI

Answer(s): C

Explanation:

802.11k is a standard that provides mechanisms for APs and clients to dynamically measure the available radio resources in a wireless network. 802.11k defines radio resource management (RRM) functions, such as neighbor reports, link measurement, beacon reports, etc., that allow APs and clients to exchange information about the RF environment and make better roaming decisions. The other options are incorrect because they describe other standards, such as 802.11r, 802.11v, or 802.11ax.


Reference:

https://www.arubanetworks.com/assets/wp/WP_WiFi6.pdf https://www.arubanetworks.com/assets/ds/DS_AP510Series.pdf



Your customer is interested in hearing more about how roles can help keep consistent policy enforcement in a distributed overlay fabric How would you explain this concept to them''

  1. Group Based Policy ID is applied on egress VTEP after device authentication and policy is enforced on ingress VTEP
  2. Role-based policies are tied to IP addresses which have an advantage over IP-based policies and role names are sent between VTEPs
  3. Group Based Policy ID is applied on ingress VTEP after device authentication and policy is enforced on egress VTEP
  4. Role-based policies enhance User Based Tunneling across the campus network and the policy traffic is protected with iPsec

Answer(s): C

Explanation:

This is the correct explanation of how roles can help keep consistent policy enforcement in a distributed overlay fabric. Roles are used to assign group based policy IDs (GBPs) to devices after they authenticate with ClearPass or a local database. GBPs are then used to tag the traffic from the devices and send them to the ingress VTEP, which applies the GBP on the VXLAN header. The egress VTEP then enforces the policy based on the GBP and the destination device. The other options are incorrect because they either do not describe the correct sequence of events or do not use the correct terms.


Reference:

https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200- 6728/bk01-ch03.html https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200- 6728/bk01-ch05.html



How is Multicast Transmission Optimization implemented in an HPE Aruba wireless network?

  1. "The optimal rate for sending multicast frames is based on the highest broadcast rate across all associated clients
  2. When this option is enabled the minimum default rate for multicast traffic is set to 12 Mbps for 5 GHz
  3. The optimal rate for sending multicast frames is based on the lowest broadcast rate across all associated clients.
  4. The optimal rate for sending multicast frames is based on the lowest unicast rate across all associated clients.

Answer(s): D

Explanation:

multicast transmission optimization is a feature that allows the IAP to select the optimal rate for sending broadcast and multicast frames based on the lowest of unicast rates across all associated clients.
When this option is enabled, multicast traffic can be sent at up to 24 Mbps. The default rate for sending frames for 2.4 GHz is 1 Mbps and 5.0 GHz is 6 Mbps. This option is disabled by default.






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