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HP HPE6-A73 Exam Practice Questions (P. 3)

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Question #11
How is voice traffic prioritized correctly on AOS-CX switches?
  1. A
    By defining device profiles with QOS settings
  2. B
    By placing it in the strict priority queue
  3. C
    By implementing voice VLANs
  4. D
    By implementing weighted fair queueing (WFQ)

Correct Answer:
C
chatbot-img GPT-4o - Answer
Implementing voice VLANs on AOS-CX switches automatically prioritizes voice traffic. This built-in feature simplifies the configuration process, ensuring voice packets receive the necessary priority for quality communications without the need for manually setting queue priorities, thus optimally managing network traffic and enhancing VoIP service quality.

Question #12
An administrator is replacing the current access switches with AOS-CX switches. The access layer switches must authenticate user and networking devices connecting to them. Some devices support no form of authentication, and some support 802.1X. Some ports have a VoIP phone and a PC connected to the same port, where the PC is connected to the data port of the phone and the phone's LAN port is connected to the switch.
Which statement is correct about this situation?
  1. A
    802.1X must be configured to work in fallback mode
  2. B
    Device fingerprinting is required for authentication
  3. C
    The client-limit setting for port access needs to be changed
  4. D
    Device mode should be implemented

Correct Answer:
A
chatbot-img GPT-4o - Answer
The best practice when configuring AOS-CX switches in environments where devices vary in their authentication capabilities is to use 802.1X in fallback mode. In this setup, if a device does not support 802.1X, the system can revert to less secure authentication methods, such as MAC authentication. This is especially crucial in scenarios where both a VoIP phone and a PC are connected to the same port but may not support the same authentication mechanisms. Hence, enabling fallback mode ensures that all devices can be authenticated in some manner while maximizing security whenever possible.

Question #13
Examine the network exhibit.

A company has a guest implementation for wireless and wired access. Wireless access is implemented through a third-party vendor. The company is concerned about wired guest traffic traversing the same network as the employee traffic. The network administrator has established a GRE tunnel between AOS-CX switches where guests are connected to a routing switch in the DMZ.
Which feature should the administrator implement to ensure that the guest traffic is tunneled to the DMZ while the employee traffic is forwarded using OSPF?
  1. A
    OSPF route maps using the ג€set metricג€ command
  2. B
    Policy-based routing (PBR)
  3. C
    User-based tunneling (UBT)
  4. D
    Classifier policies

Correct Answer:
C

Question #14
An administrator has an AOS-CX switch configured with:
router ospf 1
area 0
area 1 stub no-summary
It is the only ABR for area 1. The switch has the appropriate adjacencies to routing switches in areas 0 and 1. The current routes in each area are:
Area 0: 5 routes (LSA Type 1 and 2)
Area 1: 10 routes (LSA Type 1 and 2)
External routes: 2 (LSA Type 5)
Based on the above configuration, how many OSPF routes will routing switches see in Area 1?
  1. A
    15
  2. B
    6
  3. C
    11
  4. D
    12

Correct Answer:
C
chatbot-img GPT-4o - Answer
In an OSPF configuration where Area 1 is defined as a stub area with the "no-summary" option, the area becomes a totally stubby area. This setup suppresses both types of external route advertisements (Type 5 LSAs) and inter-area summary routes (Type 3 LSAs). The only routes present in Area 1 will be the intra-area routes (Type 1 and Type 2 LSAs) originally counted as 10, along with a default route introduced by the ABR, making the total count 11. Thus, routing switches in Area 1 will see exactly 11 OSPF routes.

Question #15
A network administrator is managing a network that deploys a multicast service. The administrator has multiple streams successfully being routed by PIM-DM in the network. The administrator then adds a new stream with a destination address of 239.0.0.1. However, clients who have not joined the stream are receiving it.
What should the administrator do to fix this problem?
  1. A
    Verify that IGMP is enabled between the switches connecting the multicast source and receivers
  2. B
    Change the destination multicast address to 239.1.1.1
  3. C
    Define the 239.0.0.1 stream on the rendezvous point (RP)
  4. D
    Define the 239.0.0.1 stream on the PIM candidate bootstrap router

Correct Answer:
C
chatbot-img GPT-4o - Answer
In this situation, changing the destination multicast address, as suggested in option B, will appropriately resolve the issue. Using the address 239.0.0.1 can cause an overlap with the Link-Local Multicast address scope, leading to the observed problem where non-subscribed clients receive the multicast stream. Switching to a different address, such as 239.1.1.1, which is outside the Link-Local range, will ensure that only clients who have explicitly joined the multicast group receive the stream. This approach aligns with best practices to avoid potential address conflicts within multicast configurations.

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