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NEW QUESTION # 43
How do you allow a new VLAN 100 between VSX pair inter-switch-link 256 for port 1/45 and
2/45?
- A. vlan trunk allowed 100 in LAG256
- B. vlan trunk add 100 in LAG256
- C. vlan trunk allowed 100 for ports 1/45 and 1/46
- D. vlan trunk add 100 in MLAG256
Answer: A
Explanation:
To allow a new VLAN 100 between VSX pair inter-switch-link 256 for port 1/45 and 2/45, you need to use the command vlan trunk allowed 100 in LAG256. This will add VLAN 100 to the list of allowed VLANs on the trunk port LAG256, which is part of the inter-switch-link between VSX peers. The other options are incorrect because they either do not use the correct command or do not specify the correct port or VLAN.
NEW QUESTION # 44
Two AOS-CX switches are configured with VSX at the the Access-Aggregation layer where servers attach to them An SVI interface is configured for VLAN 10 and serves as the default gateway for VLAN 10. The ISL link between the switches fails, but the keepalive interface functions. Active gateway has been configured on the VSX switches.
What is correct about access from the servers to the Core? (Select two.)
- A. Server 1 can access the core layer on only one uplink
- B. Server 2 cannot access the core layer.
- C. Server 1 can access the core layer via the keepalrve link
- D. Server 1 and Server 2 can communicate with each other via the core layer
- E. Server 1 can access the core layer via both uplinks
- F. Server 2 can access the core layer via the keepalive link
Answer: D,E
Explanation:
These are the correct statements about access from the servers to the Core when the ISL link between the switches fails, but the keepalive interface functions. Server 1 can access the core layer via both uplinks because it is connected to VSX-A, which is still active for VLAN 10. Server
2 can also access the core layer via its uplink to VSX-B, which is still active for VLAN 10 because of Active Gateway feature. Server 1 and Server 2 can communicate with each other via the core layer because they are in the same VLAN and subnet, and their traffic can be routed through the core switches. The other statements are incorrect because they either describe scenarios that are not possible or not relevant to the question.
NEW QUESTION # 45
By default, Best Effort is higher priority than which priority traffic type?
- A. Background
- B. Internet Control
- C. All queues
- D. Network Control
Answer: A
Explanation:
This is because Best Effort traffic is all other kinds of non-detrimental traffic that are not sensitive to Quality of Service metrics (jitter, packet loss, latency). A typical example would be peer-to-peer and email applications. Background traffic is a type of traffic that is used for system maintenance or backup purposes and does not affect the performance or availability of the network. Therefore, Best Effort traffic has a higher priority than Background traffic in terms of network resources allocation and management.
NEW QUESTION # 46
Match the topics with the underlying technologies (Options may be used more than once or not at all.)
Answer:
Explanation:
NEW QUESTION # 47
You are helping an onsite network technician bring up an Aruba 9004 gateway with ZTP for a branch office The technician was to plug in any port for the ZTP process to start Thirty minutes after the gateway was plugged in new users started to complain they were no longer able to get to the internet. One user who reported the issue stated their IP address is 172.16 0.81. However, the branch office network is supposed to be on 10.231 81.0/24.
What should the technician do to alleviate the issue and get the ZTP process started correctly?
- A. Move the cable on the gateway from port G0/0V1 on port G0/0/0
- B. Turn off the DHCP scope on the gateway, and set DNS correctly on the gateway to reach Aruba Activate
- C. Factory default and reboot the gateway to restart the process.
- D. Move the cable on the gateway to G0/0/1, and add the device's MAC and Serial number in Central
Answer: A
Explanation:
Aruba 9004 gateway supports ZTP on port G0/0/0 by default. If the gateway is connected to a different port, such as G0/0/1, it will not be able to communicate with Aruba Activate and Aruba Central, which are required for ZTP. Moreover, port G0/0/1 is configured as a DHCP server by default, which can cause IP address conflicts with the existing network. Therefore, the technician should move the cable on the gateway to port G0/0/0, which will allow the gateway to obtain an IP address from the network DHCP server and start the ZTP process.
NEW QUESTION # 48
Which statements are true about VSX LAG? (Select two.)
- A. Outgoing traffic is switched to a port based on a hashing algorithm which may be either switch in the pair
- B. The total number of configured links may not exceed 8 for the pair or 4 per switch
- C. Outgoing traffic is preferentially switched to local members of the LAG.
- D. LAG traffic is passed over VSX ISL links only while upgrading firmware on the switch pair
- E. Up to 255 VSX lags can be configured on all 83xx and 84xx model switches.
Answer: A,C
Explanation:
Explanation
VSX LAG is a feature that allows a pair of Aruba CX switches to form a multichassis LAG with a downstream or upstream device. VSX LAG provides link redundancy and load balancing across the two switches. Outgoing traffic from the VSX pair to the peer device is switched to a port based on a hashing algorithm that considers various parameters such as source and destination MAC addresses, IP addresses, ports, etc. The hashing algorithm may select a port that belongs to either switch in the pair, depending on the traffic characteristics1. However, outgoing traffic is preferentially switched to local members of the LAG, meaning that each switch tries to use its own ports first before using the ISL link to send traffic to the other switch's ports2. This reduces the ISL utilization and improves performance. References: 1
https://www.arubanetworks.com/techdocs/AOS-CX/10.07/HTML/5200-7888/Content/VSX_cmds/int-lag-mul-c
2
https://www.arubanetworks.com/techdocs/AOS-CX/10.07/HTML/5200-7888/Content/Chp_Start/vsx-lag-10.11.
NEW QUESTION # 49
AppRF 2.0 allows you to:
- A. classify web content based on reputation
- B. configure ACL and bandwidth control for applications
- C. monitor applications and radio frequencies
- D. customize application signatures
Answer: A
NEW QUESTION # 50
You are are doing tests in your lab and with the following equipment specifications:
* AP1 has a radio that generates a 16 dBm signal.
* AP2 has a radio that generates a 13 dBm signal.
* AP1 has an antenna with a gain of 8 dBi.
* AP2 has an antenna with a gain of 12 dBi. The antenna cable for AP1 has a 4 dB loss. The antenna cable for AP2 has a 3 dB loss.
What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for AP1?
- A. 20 dBm
- B. -9 dBm
- C. 40 dBm
- D. 15 dBm
Answer: A
Explanation:
The Equivalent Isotropic Radiated Power (EIRP) is the measured radiated power of an antenna in a specific direction. It is also called Equivalent Isotropic Radiated Power. It is the output power when a signal is concentrated into a smaller area by the Antenna. The EIRP can take into accountthe losses in transmission line, connectors and includes the gain of the antenna.It is represented in dB2. The formula for EIRP is:
EIRP=PTLc+Ga
where PT is the output power of the transmitter in dBm, Lc is the cable and connector loss in dB, and Ga is the antenna gain in dBi.
For AP1, the EIRP can be calculated as:
EIRP=164+8=20 dBm
Therefore, the answer B is correct.
References:1: Aruba Campus Access documents and learning resources2: EIRP Calculator - Effective Isotropic Radiated Power
NEW QUESTION # 51
With the Aruba CX 6100 48G switch with uplinks of 1/1/47 and 1/1/48. how do you automate the process of resuming the port operational state once a loop on a client port is cleared?
- A. Configure int 1/1/1-1/1/46 loop-protect re-enable-timer.
- B. Configure global loop-protect disable timer.
- C. Configure global loop-protect re-enable-timer.
- D. Configure int 1/1/1-1/1/52 loop-protect disable timer.
Answer: A
Explanation:
Loop protection is a feature that detects and prevents loops in layer 2 networks. Loop protection can be enabled on ports, LAGs, or VLANs. When loop protection is enabled, the switch sends periodic loop protection messages on the interface and expects to receive them back. If a loop protection message is received back on the same interface, it indicates a loop and the switch takes an action to disable the interface or block traffic on it3. The loop-protect re-enable-timer command is used to configure the length of time the switch waits before re-enabling an interface that was disabled due to loop detection. The default value is 0, which means that the interface remains disabled until manually re-enabled3. To automate the process of resuming the port operational state once a loop on a client port is cleared, the loop-protect re-enable-timer command can be used with a non-zero value on the interface range that includes the client ports3. Therefore, answer C is correct.
NEW QUESTION # 52
Which Aruba AP mode is sending captured RF data to Aruba Central for waterfall plot?
- A. Air Monitor
- B. Dual Mode
- C. Spectrum Monitor
- D. Hybrid Mode
Answer: C
Explanation:
Spectrum Monitor is an Aruba AP mode that is sending captured RF data to Aruba Central for waterfall plot.
Spectrum Monitor is a mode that allows an AP to scan all channels in both 2.4GHz and 5 GHz bands and collect information about the RF environment, such as interference sources, noise floor, channel utilization, etc. The AP then sends this data to Aruba Central, which is a cloud-based network management platform that can display the data in various formats, including waterfall plot. Waterfall plot is a graphical representation of the RF spectrum over time, showing the frequency, amplitude, and duration of RF signals. The other options are incorrect because they are either not AP modes or not sending RF data to Aruba Central. References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/spect
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/water
NEW QUESTION # 53
When setting up an Aruba CX VSX pair, which information does the Inter-Switch Link Protocol configuration use in the configuration created?
- A. MAC tables
- B. UDLD
- C. QSVI
- D. RPVST+
Answer: B
Explanation:
UDLD (Unidirectional Link Detection) is the information that the Inter-Switch Link Protocol configuration uses in the configuration created for Aruba CX VSX pair inter-switch-link. UDLD is a protocol that detects unidirectional links between switches and prevents loops or black holes in the network. UDLD is enabled by default on all ports that are part of the inter-switch-link between VSX peers. The other options are incorrect because they are either not related to inter-switch-link or not supported by Aruba CX VSX.
NEW QUESTION # 54
On AOS10 Gateways, which device persona is only available when configuring a Gateway-only group?
- A. Edge
- B. Branch
- C. Mobility
- D. VPN Concentrator
Answer: D
Explanation:
In AOS10, the VPN Concentrator persona is specifically available when configuring a Gateway- only group. This persona is designed for gateways that primarily handle VPN traffic, such as for remote users or branch offices, making it distinct from other personas like Edge, Mobility, or Branch.
NEW QUESTION # 55
A user reports that they cannot connect to the network. Which command should be used first to check connectivity?
- A. traceroute <destination>
- B. show running-config
- C. ping <destination>
- D. netstat -an
Answer: C
NEW QUESTION # 56
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?
- A. The gateway group is running in automatic cluster mode and should be in manual cluster mode
- B. The SSL certificate on the gateway used to encrypt the connection has not been added to the APs trust list
- C. There may be a firewall blocking GRE tunneling between the AP and the gateway
- D. There is a time difference between the AP and the gateways The gateways should have NTP added
Answer: C
Explanation:
Explanation
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. References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/gateways/microb
https://www.arubanetworks.com/assets/tg/TB_ArubaGateway.pdf
NEW QUESTION # 57
By default, Best Effort is higher priority than which priority traffic type?
- A. Background
- B. Internet Control
- C. All queues
- D. Network Control
Answer: A
Explanation:
This is because Best Effort traffic is all other kinds of non-detrimental traffic that are not sensitive to Quality of Service metrics (jitter, packet loss, latency). A typical example would be peer-to-peer and email applications2. Background traffic is a type of traffic that is used for system maintenance or backup purposes and does not affect the performance or availability of the network3.
Therefore, Best Effort traffic has a higher priority than Background traffic in terms of network resources allocation and management.
1: https://www.arubanetworks.com/techdocs/ArubaDocPortal/content/docportal.htm
2: https://stackoverflow.com/questions/33854306/best-effort-traffic-and-real-time-traffic-difference
3: https://www.informit.com/articles/article.aspx?p=25315&seqNum=4
NEW QUESTION # 58
A customer wants to deploy a Gateway and take advantage of all the SD-WAN features. Which persona role option should be selected?
- A. ArubaOS 10 Wireless
- B. ArubaOS 10 Mobility
- C. ArubaOS 10 Branch
- D. ArubaOS 10 VPN Concentrator
Answer: C
Explanation:
ArubaOS 10 Branch is a persona that enables the Gateway to provide both LAN and WAN functionality for branch networks. The Gateway can act as a wireless controller, a router, a firewall, and an SD-WAN device. The SD-WAN features include route and tunnel orchestration, dynamic path steering, forward error correction, SaaS traffic optimization, SASE orchestration, and more.
NEW QUESTION # 59
Match the solution components of NetConductor (Options may be used more than once or not at all.)
Answer:
Explanation:
NEW QUESTION # 60
You are are doing tests in your lab and with the following equipment specifications:
* AP1 has a radio that generates a 16 dBm signal.
* AP2 has a radio that generates a 13 dBm signal.
* AP1 has an antenna with a gain of 8 dBi.
* AP2 has an antenna with a gain of 12 dBi. The antenna cable for AP1 has a 4 dB loss. The antenna cable for AP2 has a 3 dB loss.
What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for AP1?
- A. 20 dBm
- B. -9 dBm
- C. 40 dBm
- D. 15 dBm
Answer: A
Explanation:
The Equivalent Isotropic Radiated Power (EIRP) is the measured radiated power of an antenna in a specific direction. It is also called Equivalent Isotropic Radiated Power. It is the output power when a signal is concentrated into a smaller area by the Antenna. The EIRP can take into account the losses in transmission line, connectors and includes the gain of the antenna. It is represented in dB2. The formula for EIRP is:
EIRP=PT−Lc+Ga
where PT is the output power of the transmitter in dBm, Lc is the cable and connector loss in dB, and Ga is the antenna gain in dBi.
For AP1, the EIRP can be calculated as:
EIRP=16−4+8=20 dBm
Therefore, the answer B is correct.
NEW QUESTION # 61
With the Aruba CX 6200 24G switch with uplinks or 1/1/25 and 1/1/26, how do you protect client ports from forming layer-2 loops?
- A. int 1/1/1-1/1/24. loop-guard
- B. int 1/1/1-1/1/24, loop-protect
- C. int 1/1/1-1/1/28. loop-protect
- D. int 1/1/1-1/1/28. loop-guard
Answer: B
Explanation:
Explanation
The command loop-protect enables loop protection on each layer 2 interface (port, LAG, or VLAN) for which loop protection is needed. Loop protection can find loops in untagged layer 2 links, as well as on tagged VLANs.
NEW QUESTION # 62
You are helping an onsite network technician bring up an Aruba 9004 gateway with ZTP for a branch office The technician was to plug in any port for the ZTP process to start Thirty minutes after the gateway was plugged in new users started to complain they were no longer able to get to the internet. One user who reported the issue stated their IP address is 172.16 0.81 However, the branch office network is supposed to be on 10.231 81.0/24.
What should the technician do to alleviate the issue and get the ZTP process started correctly?
- A. Move the cable on the gateway to G0/0/1. and add the device's MAC and Serial number in Central
- B. Turn off the DHCP scope on the gateway, and set DNS correctly on the gateway to reach Aruba Activate
- C. Factory default and reboot the gateway to restart the process.
- D. Move the cable on the gateway from port G0/0V1 tc port G0 0.0
Answer: D
Explanation:
Aruba 9004 gateway supports ZTP on port G0/0/0 by default1. If the gateway is connected to a different port, such as G0/0/V1, it will not be able to communicate with Aruba Activate and Aruba Central, which are required for ZTP2. Moreover, port G0/0/V1 is configured as a DHCP server by default, which can cause IP address conflicts with the existing network3. Therefore, the technician should move the cable on the gateway to port G0/0/0, which will allow the gateway to obtain an IP address from the network DHCP server and start the ZTP process. The other options are not correct because they will not solve the issue or enable ZTP. For example, option D will not work because factory defaulting and rebooting the gateway will not change the port configuration or behavior3.
NEW QUESTION # 63
Match the appropriate QoS concept with its definition. (Options may be used more than once or not at all.)
Answer:
Explanation:
NEW QUESTION # 64
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HP HPE7-A01 certification exam is designed for IT professionals who want to validate their knowledge and skills related to Aruba campus access solutions. HPE7-A01 exam is intended for individuals who have experience in designing, implementing, and managing Aruba wireless and wired networks. The HPE7-A01 certification is offered by Hewlett Packard Enterprise (HPE), a leading provider of IT solutions, software, and services.
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