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An administrator is managing a pair of core AOS-CX switches configured for VSX. Connected to this core are pairs of aggregation layer AOS-CX switches configured for VSX. OSPF is running between the aggregation and core layers. To speed up OSPF convergence, the administrator has configured BFD between the core and aggregation switches.

What is a best practice the administrator should implement to reduce CPU processing on the switches if a BFD neighbor fails?

A.
Disable ICMP redirects
A.
Disable ICMP redirects
Answers
B.
Implement graceful restart
B.
Implement graceful restart
Answers
C.
Increase the BFD echo timers
C.
Increase the BFD echo timers
Answers
D.
Increase the VSX keepalive timer
D.
Increase the VSX keepalive timer
Answers
Suggested answer: A

A network engineer is examining NAE graphs from the Dashboard but notices that the time shown in the graph does not represent the current time. The engineer verifies that the AOS-CX switch is configured for NTP and is successfully synchronized. What should be done to fix this issue?

A.
Ensure the engineer's web browser is configured for the same timezone as the AOS-CX switch
A.
Ensure the engineer's web browser is configured for the same timezone as the AOS-CX switch
Answers
B.
Ensure the engineer's PC is synchronized to the same NTP server as the AOS-CX switch
B.
Ensure the engineer's PC is synchronized to the same NTP server as the AOS-CX switch
Answers
C.
Ensure NetEdit and the AOS-CX switch are synchronized to the same NTP server
C.
Ensure NetEdit and the AOS-CX switch are synchronized to the same NTP server
Answers
D.
Enable trust settings for the AOS-CX switch's SSL certificate
D.
Enable trust settings for the AOS-CX switch's SSL certificate
Answers
Suggested answer: B

Explanation:

https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6724/index.html#GUID-2048A4D8-5458-4C00-ACA7-8C392182215E.html

A company is implementing a new wireless design and needs it to support high availability, even during times of switch system upgrades. The solution will involve Aruba Mobility Controller (MC) and Aruba AP connections requiring POE.

Which campus AOS-CX switch solution and virtual switching should the company implement at the campus access layer?

A.
AOS-CX 6400 and VSX
A.
AOS-CX 6400 and VSX
Answers
B.
AOS-CX 6300 and VSF
B.
AOS-CX 6300 and VSF
Answers
C.
AOS-CX 8325 and VSF
C.
AOS-CX 8325 and VSF
Answers
D.
AOS-CX 8400 and VSX
D.
AOS-CX 8400 and VSX
Answers
Suggested answer: A

An administrator is looking for a data center switching solution that will greatly reduce the likelihood of dropped frames when uplink congestion is experienced. Which AOS-CX switch queuing feature meets the administrator's needs?

A.
FIFO
A.
FIFO
Answers
B.
VOQ
B.
VOQ
Answers
C.
WFQ
C.
WFQ
Answers
D.
DWWR
D.
DWWR
Answers
Suggested answer: B

An AOS-CX switch is configured to implement downloadable user roles. Examine the AOS-CX switch output:

Based on this output, what is the state of the user's access?

A.
No downloadable user role exists
A.
No downloadable user role exists
Answers
B.
MAC authentication has passed, but 802.1X authentication is in progress
B.
MAC authentication has passed, but 802.1X authentication is in progress
Answers
C.
The RADIUS request timed out to the AAA server
C.
The RADIUS request timed out to the AAA server
Answers
D.
The port should be configured for 802.1X
D.
The port should be configured for 802.1X
Answers
Suggested answer: A

Explanation:

User role "Authenticated" was passed down but does not exist

An administrator of a company has concerns about upgrading the access layer switches. The users rely heavily on wireless and VoIP telephony. Which is the best recommendation to ensure a short downtime for the users during upgrading the access layer switches?

A.
Install the in-service software upgrade (ISSU) feature with clustering enabled
A.
Install the in-service software upgrade (ISSU) feature with clustering enabled
Answers
B.
Install AOS-CX 6300 or 6400 switches with always-on POE
B.
Install AOS-CX 6300 or 6400 switches with always-on POE
Answers
C.
Implement VSF on the AOS-CX access switches
C.
Implement VSF on the AOS-CX access switches
Answers
D.
Implement VSX on the AOS-CX access switches
D.
Implement VSX on the AOS-CX access switches
Answers
Suggested answer: B

Explanation:

The key is to reduce the impact. VSF or not will have same impact when the switch reboots. But if the switch support always on poe then at least the POE clients will be ready before the switch finish booting up. If you dont have always on

POE, then the poe clients will reboot AFTER the switch boots up.

How should a network administrator add NAE scripts and implement NAE agents that will run on an AOS-CX switch?

A.
Use the web interface of the NetEdit server
A.
Use the web interface of the NetEdit server
Answers
B.
Use the web interface of the AOS-CX switch
B.
Use the web interface of the AOS-CX switch
Answers
C.
Use the web interface of Aruba Central
C.
Use the web interface of Aruba Central
Answers
D.
Use the CLI of the AOS-CX switch
D.
Use the CLI of the AOS-CX switch
Answers
Suggested answer: B

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?

A.
OSPF route maps using the "set metric" command
A.
OSPF route maps using the "set metric" command
Answers
B.
Policy-based routing (PBR)
B.
Policy-based routing (PBR)
Answers
C.
User-based tunneling (UBT)
C.
User-based tunneling (UBT)
Answers
D.
Classifier policies
D.
Classifier policies
Answers
Suggested answer: B

Explanation:

Guest traffic can be routed with PBR to use GRE tunnels that terminate in the DMZ.

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?

A.
15
A.
15
Answers
B.
6
B.
6
Answers
C.
11
C.
11
Answers
D.
12
D.
12
Answers
Suggested answer: C

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?

A.
Verify that IGMP is enabled between the switches connecting the multicast source and receivers
A.
Verify that IGMP is enabled between the switches connecting the multicast source and receivers
Answers
B.
Change the destination multicast address to 239.1.1.1
B.
Change the destination multicast address to 239.1.1.1
Answers
C.
Define the 239.0.0.1 stream on the rendezvous point (RP)
C.
Define the 239.0.0.1 stream on the rendezvous point (RP)
Answers
D.
Define the 239.0.0.1 stream on the PIM candidate bootstrap router
D.
Define the 239.0.0.1 stream on the PIM candidate bootstrap router
Answers
Suggested answer: B

Explanation:

MAC/IP overlap. 239.0.0.1 would be the same MAC for 224.0.0.1. 224.0.0.0/24 is always flooded over every port.

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