HP HPE7-A01 Exam Questions Instant Access

Question 1

You are deploying a bonded 40 MHz wide channel What is the difference in the noise floor perceived by a client using this bonded channel as compared to an unbonded 20MHz wide channel?

A2dB

B3dB

C8dB

D4dB

Answer : B

The difference in the noise floor perceived by a client using a bonded 40 MHz wide channel as compared to an unbonded 20 MHz wide channel is 3 dB. The noise floor is the level of background noise in a given frequency band. When two adjacent channels are bonded, the noise floor increases by 3 dB because the bandwidth is doubled and more noise is captured. The other options are incorrect because they do not reflect the correct relationship between bandwidth and noise floor. Reference: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/rf-fundamentals.htm https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/channel-bonding.htm

Question 2

Using Aruba best practices what should be enabled for visitor networks where encryption is needed but authentication is not required?

AWi-Fi Protected Access 3 Enterprise

BOpportunistic Wireless Encryption

CWired Equivalent Privacy

DOpen Network Access

Answer : B

Opportunistic Wireless Encryption (OWE) is a feature that provides encryption for open wireless networks without requiring authentication. OWE uses an enhanced version of the 4-way handshake to establish a pairwise key between the client and the AP, which is then used to encrypt the wireless traffic using WPA2 or WPA3 protocols. OWE can be used for visitor networks where encryption is needed but authentication is not required. Reference: https://www.arubanetworks.com/assets/tg/TG_OWE.pdf

Question 3

A network administrator is troubleshooting some issues guest users are having when connecting and authenticating to the network The access switches are AOS-CX switches.

What command should the administrator use to examine information on which role the guest user has been assigned?

Ashow aaa authentication port-access interface all client-status

Bshow port-access captiveportal profile

Cshow port-access role

Ddiag-dump captiveportal client verbose

Answer : A

The show aaa authentication port-access interface all client-status command displays the status of all clients authenticated by port-based access control on all interfaces. The output includes the MAC address, user role, VLAN ID, and session timeout for each client. This command can be used to examine information on which role the guest user has been assigned by the AOS-CX switch. Reference: https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-9B8F6E8F-9C7A-4F0D-AE7B-9D8E6C5B6A7F.html

Question 4

Your customer is having connectivity issues with a newly-deployed Microbranch group The access points in this group are online in Aruba Central, but no VPN tunnels are forming.

What is the most likely cause of this issue?

AThere is a time difference between the AP and the gateways The gateways should have NTP added

BThe SSL certificate on the gateway used to encrypt the connection has not been added to the APs trust list

CThere may be a firewall blocking GRE tunneling between the AP and the gateway

DThe gateway group is running in automatic cluster mode and should be in manual cluster mode

Answer : C

This is the most likely cause of the issue where the access points in a Microbranch group are online in Aruba Central, but no VPN tunnels are forming. A Microbranch group is a group that contains both APs and Gateways and allows them to form VPN tunnels for secure communication. The VPN tunnels use GRE (Generic Routing Encapsulation) as the encapsulation protocol and IPSec as the encryption protocol. If there is a firewall blocking GRE traffic between the AP and the gateway, the VPN tunnels cannot be established. The other options are incorrect because they either do not affect the VPN tunnel formation or do not apply to a Microbranch group. Reference: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/gateways/microbranch.htm https://www.arubanetworks.com/assets/tg/TB_ArubaGateway.pdf

Question 5

Your customer currently has Iwo (2) 5406 modular switches with MSTP configured as their core switches. You are proposing a new solution. What would you explain regarding the Aruba CX VSX switch pair when the Primary VSX node is replaced and the system MAC is replaced?

AVSX will select the MAC address from a node that is the lower ID.

BConfigure vMAC on the Primary VSX node under VSX to retain MAC after hardware replacement.

CVSX will select the MAC address from a node that is a higher ID.

DDuring the initial VSX configuration, the system-mac is assigned with a fixed MAC based on VSX ID.

Answer : D

The system-mac command is used to configure a fixed MAC address for the VSX system. This MAC address is used as the source MAC address for all routed traffic from the VSX node.The system-mac command is highly recommended for preventing traffic disruptions when the primary VSX switch restores after the secondary VSX switch, such as during a primary switch hardware replacement or a power outage2. During the initial VSX configuration, the system-mac is assigned with a fixed MAC based on VSX ID.The system-mac command can be used to change this default MAC address if needed2. Therefore, answer D is correct.

Question 6

You need to have different routing-table requirements with Aruba CX 6300 VSF configuration

Assuming the correct layer-2 VLAN already exists how would you create a new OSPF configuration for a separate routing table?

ACreate a new OSPF area, and attach VRF name.

BCreate a new OSPF process ID with vrf name.

CAttach a new OSFP process ID with a custom routing table

DAttach OSPF process ID in the VRF configuration.

Answer : B

To create a new OSPF configuration for a separate routing table, you need to create a new OSPF process ID with vrf name. This will create a new OSPF instance that is associated with the specified VRF and its routing table. The other options are incorrect because they either do not create a new OSPF instance or do not associate it with a VRF. Reference: https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch03.html

Question 7

Refer to the output from a CX 6100 switch:

What is the correct detail that can be observed from the output above?

AThe dBm values for Tx are too high and affect Rx signals.

BThe dBm values for Rx are too low, indicating that the link is down.

CThe dBm values for Rx are within acceptable values, and the link is up.

DThe dbm values for T are too far away from 0, and the link is down.

Answer : B

HP Aruba Certified Campus Access Professional HPE7-A01 Exam Questions