HP HPE7-A07 Exam Practice Test Instant Access

Question 1

What directly affects the MCS used by wireless stations? (Select two.)

ASNR

Bretry rate

Cchannel utilization

Dnumber of connected clients

Efrequency band

Answer : A, E

The Modulation and Coding Scheme (MCS) used by wireless stations is directly affected by the signal-to-noise ratio (SNR) and the frequency band. Higher SNR can lead to higher MCS values, which means better data rates. The frequency band can affect MCS due to different channel characteristics, such as the presence of interference and propagation properties, which are factors in determining data rates.

Question 2

You are troubleshooting a WLAN deployment with APs and gateways set up with an 802.1X tunneled SSIO. End-users are complaining that they can't connect to die enterprise SSID. Which possible AP tunnel states could be the cause of the Issue? (Select two.)

ASM_STATE_RE KEYING

BSM_STATE_SURVIVED

CSM_STATE_CONNECTED

DSM_STATE_SURVIVING

ESM_STATE_CONNECTING

Answer : A, E

When troubleshooting a WLAN with 802.1X tunneled SSID issues, AP tunnel states indicate the status of the connection between the AP and the gateway/controller. The states 'SM_STATE_REKEYING' and 'SM_STATE_CONNECTING' could indicate transitional states where the connection has not been fully established, hence users might face issues connecting to the SSID. 'SM_STATE_REKEYING' implies that the AP is in the process of re-establishing encryption keys, while 'SM_STATE_CONNECTING' indicates that the AP is trying to establish a connection with the controller or gateway. These states could lead to temporary connectivity issues until the state transitions to 'SM_STATE_CONNECTED'.

Question 3

An ACME company employee complained about a recent poor-quality VoIP call while moving around their office environment HPE Aruba Networking Central reported a fair UCC score for this call while your VoIP engineer reported that their systems reported a MOS of 2, 3. The VoIP devices are operating over the 5GHz frequency band.

What are the possible contributing factors? (Select two.)

ACoverage AP deployment plans generally don't support enough cell overlap for VoIP.

B802.tr is enabled in the WLAN Security settings.

CThere was localized interference at the caller's location

D802.1K is disabled in the WLAN Security settings

EThe client roamed into an area that continuously operates Zigbee.

Answer : A, E

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.

Question 4

Which command would allow you to verity receipt of a CoA message on an AOS 10 GW?

Apacket-capture datapath udp 3799

Bpacket-capture controipath udp 3799

Cpacket-capture interprocess udp 3799

Dtcpdump host-port 3799

Answer : B

The Change of Authorization (CoA) messages are used in network access control scenarios and are typically received by the network access server, in this case, an Aruba AOS 10 Gateway. The correct command to verify the receipt of a CoA message is related to the control path traffic because CoA is a control plane function.

Option B, packet-capture controlpath udp 3799, is the correct answer because it specifies capturing control plane traffic on UDP port 3799, which is the standard port for CoA messages.

Options A, C, and D are incorrect because:

Option A captures data plane traffic, not control plane traffic.

Option C's packet-capture interprocess udp 3799 does not refer to a standard command for capturing CoA messages.

Option D, tcpdump host-port 3799, does not specify the correct syntax for capturing traffic on Aruba devices.

Question 5

You are testing the use of the automated port-access role configuration process using RadSec authentication over VXLAN. During your testing you observed that the RadSec connection will fan during the digital certificate exchange

What would be the cause of this Issue?

AThe RadSec server was defined on the switch using an IPv6 address that was unreachable

BTracking mode was set to 'dead-only', and the RadSec server was marked as unreachable.

CThe switch is configured to establish a TLS connection with a proxy server, not the radius server.

DThe RADIUS TCP packets are Being dropped and the TLS tunnel is not established.

Answer : D

During the testing of RadSec authentication over VXLAN, if the RadSec connection fails during the digital certificate exchange, it typically indicates an issue with the establishment of the TLS tunnel, which is required for RadSec's secure communication. The failure of TLS tunnel establishment can occur due to RADIUS TCP packets being dropped, preventing the secure exchange of digital certificates necessary for RadSec authentication. The other options, such as IPv6 address reachability, tracking mode settings, and proxy server misconfiguration, are not directly related to the failure of the TLS tunnel establishment during the certificate exchange process

Question 6

You configured" a bridged mode SSID with WPA3-Enterprise and EAP-TLS security. When you connect an Active Directory joined client that has valid client certificates. ClearPass shows the following error.

What is needed to resolve this issue?

AEnable authorization in your Authentication Method.

BRecreate the SSID m tunneled mode.

CModify your ACX-AD authentication source to include the UPN in the search.

DConfigure ClearPass to trust the client certificate.

Answer : C

The error message 'User not found' indicates that the authentication source, in this case, Active Directory (AD), is not able to locate the user account based on the current search parameters. This often occurs when the User Principal Name (UPN) that the client is using to authenticate is not included in the search parameters of the AD authentication source within ClearPass. By modifying the AD authentication source to include the UPN in the search, ClearPass will be able to correctly locate the user account and proceed with the authentication using the valid client certificates.

Question 7

in a WLAN network with a tunneled SSID. you see the following events in HPE Aruba Networking Central:

The customer asks you to investigate log messages What should you tell them?

AThis indicates a security issue. The client with a MAC address ending with 37 18;0d Is performing a Denial-of-Service attack on your network. You should track down the client and remove it from the network.

BThis is normal, expected behavior. No further actions are needed.
C. This indicates a client WLAN driver issue for the client with a MAC address ending with 37:18
:Od. You should upgrade the client WLAN driver.

DThere is a roaming issue Enable Fast Roaming 802.11r and OKC to resolve the issue.

Answer : B

The event log showing PMK (Pairwise Master Key) and OKC (Opportunistic Key Caching) key add/update and delete operations is indicative of normal client behavior in a WLAN environment. These events are part of the standard process for maintaining client session security and do not necessarily indicate any issue.

HP Aruba Certified Campus Access Mobility Expert Written HPE7-A07 Exam Practice Test