HP
HPE7-A07
Aruba Certified
Campus Access
Mobility Expert
Written Exam
Version: Demo
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[ Total Questions: 10]
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Question #:1
You deployed UBT tosecurely tunnel traffic from user desktop PCs connected behind VOIP phones Ail other
non-UBT dents are connected to a different network. After the deployment users reported interruptions lo their
phone service
A. The VLAN on which UBT clients are placed is not configured on the switch uplink and traffic from the
VoIP phones is being dropped
B. You tailed to correctly configure a user-defined VRF to support the UBT clients behind the VoIP
phones, causing traffic to drop.
C. Broadcast/multicast packets are copied to both the tunnel and locally, causing duplicate packets and
network instability
D. The UBT client broadcast/multicast packets returned to the same switch port and corrupted the phones
IMC table
Answer: A
Explanation
If users report interruptions to their phone service after the deployment of User-Based Tunneling (UBT), it can
be due to the VLAN designated for UBT clients not being configured on the switch uplink. As a result, traffic
from VoIP phones, which may be trying to use the same VLAN, could be dropped, leading to service
interruptions. Ensuring that the VLAN is properly configured on the switch uplink is crucial for the seamless
operation of UBT clients and VoIP services.
Question #:2
Which statements accurately describe OSPF Graceful Restart (when the restarting router is able to Keep its
forwarding tables across the restart)? (Select two.)
A. The GR helper role is supported on AOX-CX 6100 switches.
B. VSF Failover and Graceful-Restart require a VSF secondary member in the VSF stack
C. Bidirectional Forwarding Detection for OSPF and GR are mutually exclusive features.
D. OSPF Routers listen for Grace-LSAs on each network segment where there is an OSFP adjacency.
E. You must ensure your VSF stack has a secondary member when acting as a GR helper
Answer: A D
Explanation
Graceful Restart (GR) allows a router to continue forwarding packets while it restarts its OSPF process. The
GR helper role on AOS-CX switches supports routers during this process. OSPFrouters listen for Grace-LSAs
to identify neighbors undergoing a graceful restart, maintaining adjacencies with those routers to allow
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uninterrupted forwarding.
Question #:3
Exhibit.
An engineer has applied the above configuration to R1 and R2 However the routers OSPF adjacency never
progresses past the "EXSTART-DR" slate as shown below.
Which configuration action on either router will allow R1 and R2 to progress past the "EXSTART/DR" state?
A. Change R1 and R2 to a network type of point-to-point.
B. Remove the layer 3 MTU configuration.
C. Ensure the OSPF process is not configured with passive-interface default.
D. Change the IP address and mask applied to interface 1/1/1.
Answer: A
Explanation
In OSPF, the "EXSTART/DR" state indicates that the routers are trying to establish an adjacency but are
unable to progress. This can happen if the OSPF network type is incorrectly configured for the type of
connection between the routers. Given that R1 and R2 are connected via a point-to-point link (as suggested by
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the /31 subnet), setting the network type to point-to-point on both routers will remove the need for DR/BDR
election, which is unnecessary on a point-to-point link, and allow OSPF to progress past the "EXSTART" state
and form a full adjacency.
Question #:4
Your customer’s employees connected to a wired network are complaining about a poor user experience. The
customer has UXI sensors deployed on their premises. These sensors nave been running for multiple months.
They are testing both the wired network (using the wired Interface of each sensor) and the wireless networks.
Your customer used the UXI dashboard to find the reason for the poor userexperience to find more details, the
customer asked you to check the packet captures that have been downloaded from the sensors using the UXI
dashboard.
From the zip file downloaded from the UXI sensors, you checked the "datagrams" .pcap file, but you were not
able to find any issues How can you explain this?
A. The "datagrams- pcap file only contains me successful tests Failed tests are contained in the
"datagrams-failed" .pcap file
B. The UXI sensor could not upload the latest test results to the cloud, so the packet capture is outdated
C. The datagrams captured on the physical Ethernet interface are in a different .pcap file.
D. The default filers of the packet captures do not allow tailed tests to be captured by the sensor
Answer: A
Explanation
It is a common practice to separate successful and failed test results into different files for ease of
troubleshooting. If the "datagrams.pcap" file shows no issues, it's likely because it only contains successful test
data, and the failed tests that could explain the poor user experience would be in a different file, such as
"datagrams-failed.pcap."
Question #:5
Your customer is requesting a4-ciass LAN queuing model tor QoS. Following best practices, match the
PHB/DSCP values to the application types.
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Answer:
Explanation
Best Effort and Scavenger =DF (0)Bulk and Transactional Data =AF21 (18)Multimedia Streaming =AF31
(26)Real-Time Interactive =EF (46)
Question #:6
Exhibit.
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Which statement is true given the following CLI output from a CX 6300?
A. There are no active fabric clients on the CX switch with RD 172.16.10.1
B. A wired client with IP address 10.203 1.100 is on a remote CX 6300 in the fabric with loopback IP
address 172.21.11.2.
C. A wired client with IP address 10 203 1 100 has a host route that is not being properly advertised
D. The overlay loopbacK addresses are advertised in the faerie with 2d-bit subnet masks
Answer: B
Explanation
The CLI output provided shows routing information from a CX 6300 switch. The output under "VRF: default"
shows various IP routes, including a route for 10.203.1.100/32 with a next hop of 172.21.11.2. This indicates
that the route to the client with IP address 10.203.1.100 is known in the network and is reachable via another
device in the fabric, which has the loopback IP address 172.21.11.2. Since the route is present in the routing
table, it means that the client is known and active within the fabric network.
Question #:7
Exhibit.
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Which user role will be assigned when a voice client tries to connect for the first time, but the RADIUS server
is unavailable?
A. CRITICAl_AUTH
B. DEFAULT_AUTH
C. CRIT1CAL_V0ICE
D. PRE_AUTH
Answer: C
Explanation
In the provided configuration for interface 1/1/7, there are roles specified for different scenarios concerning
authentication. When a voice client attempts to connect and the RADIUS server is unreachable, the role that is
assigned is the one specified as the "critical-voice-role". In this case, the "CRITICAL_VOICE" role is
configured to be assigned under such circumstances, ensuring that voice clients receive appropriate network
access permissions even when the RADIUS server is not available to authenticate them.
Question #:8
A network administrator wants to configure an 802 1X supplicant for a wireless network that includes the
following:
1. AES encryption
2. EAP-MSCHAPv2-based user and machine authentication
3. validation of server certificate in Microsoft Windows 10
The network administrator creates a WLAN profile and selects the change connection settings option Then the
network administrator changes the security type to Microsoft Protected EAP (PEAP) and enables user and
machine authentication under Additional Settings.
What must the network administrator do next to accomplish the task?
A. Enable user authentication
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B. Change the security type to Microsoft: Smart Card or other certificate.
C. Change default RC4 encryption for AES
D. Enable server certificate validation
Answer: D
Explanation
When configuring an 802.1X supplicant for wireless network access with Microsoft Windows 10, enabling
server certificate validation is a critical step to ensure the security of the authentication process. Server
certificate validation helps prevent man-in-the-middle attacks by ensuring the RADIUS server presenting the
certificate is the correct server that the client expects to communicate with.
Question #:9
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. client will be rejected network access
C. lot-local
D. unmatched-device
Answer: D
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
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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.
Question #:10
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. Coverage AP deployment plans generally don't support enough cell overlap for VoIP.
B. 802.tr is enabled in the WLAN Security settings.
C. There was localized interference at the caller’s location
D. 802.1K is disabled in the WLAN Security settings
E. The client roamed into an area that continuously operates Zigbee.
Answer: A 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.
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