HPE7-A01 Pre-Exam Practice Tests | (Updated 150 Questions)
Valid HPE7-A01 Exam Q&A PDF - One Year Free Update
NEW QUESTION # 65
Describe the difference between Class of Service (CoS) and Differentiated Services Code Point (DSCP).
- A. They are similar and can be used interchangeably.
- B. CoS is only used to determine CLASS of traffic DSCP is only used to differentiate between different Classes.
- C. CoS has much finer granularity than DSCP
- D. CoS is only contained in VLAN Tag fields DSCP is in the IP Header and preserved throughout the IP packet flow
Answer: D
Explanation:
Explanation
CoS and DSCP are both methods of marking packets for quality of service (QoS) purposes. QoS is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc. CoS stands for Class of Service and is a 3-bit field in the 802.1Q VLAN tag header. CoS can only be used on Ethernet frames that have a VLAN tag, and it can only be preserved within a single VLAN domain. DSCP stands for Differentiated Services Code Point and is a 6-bit field in the IP header. DSCP can be used on any IP packet, regardless of the underlying layer 2 technology, and it can be preserved throughout the IP packet flow, unless it is modified by intermediate devices.
References:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos/configuration/15-mt/qos-15-mt-book/qos-overview.html
https://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-packet-marking/10103-dscpvalues.html
NEW QUESTION # 66
Which feature allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter?
- A. MAC Authentication
- B. MAC caching
- C. Authentication survivability
- D. Opportunistic key caching
Answer: C
Explanation:
Authentication survivability is a feature that allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter.
Authentication survivability enables the Gateway cluster to cache successful authentication requests from the RADIUS server and use them to authenticate clients when the RADIUS server is unreachable. Authentication survivability also allows clients to use MAC caching or MAC authentication bypass (MAB) methods to access the network when the RADIUS server is down.References:https://www.arubanetworks.com/assets/tg/TG_AuthSurvivability.pdf
NEW QUESTION # 67
Describe the difference between Class of Service (CoS) and Differentiated Services Code Point (DSCP).
- A. They are similar and can be used interchangeably.
- B. CoS is only used to determine CLASS of traffic DSCP is only used to differentiate between different Classes.
- C. CoS has much finer granularity than DSCP
- D. CoS is only contained in VLAN Tag fields DSCP is in the IP Header and preserved throughout the IP packet flow
Answer: D
Explanation:
Explanation
CoS and DSCP are both methods of marking packets for quality of service (QoS) purposes. QoS is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc. CoS stands for Class of Service and is a 3-bit field in the 802.1Q VLAN tag header. CoS can only be used on Ethernet frames that have a VLAN tag, and it can only be preserved within a single VLAN domain. DSCP stands for Differentiated Services Code Point and is a 6-bit field in the IP header. DSCP can be used on any IP packet, regardless of the underlying layer 2 technology, and it can be preserved throughout the IP packet flow, unless it is modified by intermediate devices.
References:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos/configuration/15-mt/qos-15-mt-book/qos-overview.html
https://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-packet-marking/10103-dscpvalues.html
NEW QUESTION # 68
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?
- A. 2dB
- B. 3dB
- C. 8dB
- D. 4dB
Answer: B
Explanation:
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. References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/rf-fundam
NEW QUESTION # 69
Which feature supported by SNMPv3 provides an advantage over SNMPv2c?
- A. Encryption
- B. Transport mapping
- C. Community strings
- D. GetBulk
Answer: A
Explanation:
Encryption is a feature supported by SNMPv3 that provides an advantage over SNMPv2c.
Encryption protects the confidentiality and integrity of SNMP messages by encrypting them with a secret key. SNMPv2c does not support encryption and relies on community strings for authentication and authorization, which are transmitted in clear text and can be easily intercepted or spoofed. Transport mapping, community strings, and GetBulk are features that are common to both SNMPv2c and SNMPv3.
NEW QUESTION # 70
A company recently upgraded its campus switching infrastructure with Aruba 6300 CX switches. They have implemented 802.1X authentication on edge ports where laptop and loT devices typically connect An administrator has noticed that for PoE devices the pons are delivering the maximum wattage instead of what the device actually needs Upon connecting the loT devices, the devices request their specific required wattage through information exchange
- A. Globally enable the QoS trust setting for LLDP and/or CDP
- B. implement a classifier policy with the correct power definitions.
- C. Enable AAA authentication to exempt LLDP and/or CDP information
- D. Create device profiles with the correct power definitions.
- E. Concerned about this waste of electricity, what should the administrator implement to solve this problem?
Answer: D
Explanation:
Explanation
According to the Aruba Documentation Portal1, the Aruba 6300 CX switches support various features to control the PoE devices on specific ports, such as device profiles and classifier policies. These features can help reduce the power consumption and improve the performance of the PoE devices.
1:
https://www.arubanetworks.com/techdocs/AOS-CX/10.10/HTML/monitoring_6300-6400/Content/Chp_LEDs/fr
https://www.arubanetworks.com/products/switches/6300-series/ 3:
https://docs.samsungknox.com/admin/knox-manage/configure/profile/configure-profile-policies/configure-profil
NEW QUESTION # 71
Which method is used to onboard a new UXI in an existing environment with 802 1X authentication? (The sensor has no cellular connection)
- A. Use the UXI app on your smartphone and connect the UXI via Bluetooth
- B. Use the CLI via the serial cable and adjust the initial configuration.
- C. Connect the new UXI from an already installed one and adjust the initial configuration.
- D. Use the Aruba installer app on your smartphone to scan the barcode
Answer: A
Explanation:
Explanation
To onboard a new UXI in an existing environment with 802.1X authentication, you need to use the UXI app on your smartphone and connect the UXI via Bluetooth. The UXI app allows you to scan the QR code on the UXI sensor and configure its network settings, such as SSID, password, IP address, etc. The Bluetooth connection allows you to communicate with the UXI sensor without requiring any network access or cellular connection. The other options are incorrect because they either do not use the UXI app or do not use Bluetooth. References:
https://www.arubanetworks.com/products/network-management-operations/analytics-monitoring/user-experienc
https://help.centralon-prem.arubanetworks.com/2.5.4/documentation/online_help/content/nms-on-prem/aos-cx/g
NEW QUESTION # 72
The customer needs a network hardware refresh to replace an aging Aruba 5406R core switch pair using spanning tree configuration with Aruba CX 8360-32YC switches What is the benefit of VSX clustering with the new solution?
- A. faster MSTP converge processing
- B. dual control plane provides better resiliency
- C. stacked data-plane
- D. dual Aruba AP LAN port connectivity for PoE redundancy
Answer: B
Explanation:
Explanation
VSX clustering is a feature that allows two Aruba CX switches to operate as a single logical device, providing high availability, scalability, and simplified management. VSX clustering has several benefits over spanning tree configuration, such as:
* Dual control plane provides better resiliency. Unlike stacking, where switches share a single control plane, VSX switches have independent control planes that synchronize their states over an inter-switch link (ISL). This means that if one switch fails or reboots, the other switch can continue to operate without affecting traffic flows or network services.
* Active-active forwarding provides better performance. Unlike spanning tree, where some links are blocked to prevent loops, VSX switches use all available links for forwarding traffic, providing load balancing and increased bandwidth utilization.
* Multichassis LAG provides better redundancy. Unlike single-chassis LAG, where all member ports belong to one switch, VSX switches can form multichassis LAGs with downstream or upstream devices, where member ports are distributed across both switches. This provides link redundancy and seamless failover in case of switch or port failure.
References: https://www.arubanetworks.com/assets/tg/TG_VSX.pdf
NEW QUESTION # 73
Your Director of Security asks you to assign AOS-CX switch management roles to new employees based on their specific job requirements. After the configuration was complete, it was noted that a user assigned with the administrators role did not have the appropriate level of access on the switch. The user was not limited to viewing nonsensitive configuration information and a level of 1 was not assigned to their role.
Which default management role should have been assigned for the user?
- A. sysadmin
- B. operators
- C. config
- D. helpdesk
Answer: B
Explanation:
The operators user role is a predefined role that allows users to view nonsensitive configuration information on the switch, such as interfaces, VLANs, routing protocols, statistics, and more. The operators user role has a privilege level of 1, which is the lowest level of access on the switch.
The administrators user role is a predefined role that has full access to all switch configuration information and all REST API methods. This role is more than what the Director of Security requires.
NEW QUESTION # 74
Your manufacturing client is having installers deploy seventy headless scanners and fifty IP cameras in their warehouse These new devices do not support 802 1X authentication.
How can HPE Aruba reduce the IT administration overhead associated with this deployment while maintaining a secure environment using MPSK?
- A. Have the installers generate keys with ClearPass Self Service Registration.
- B. Use MPSK Local to automatically provide unique pre-shared keys for devices.
- C. Have the MPSK gateway derive the unique pre-shared keys based on the MAC OUI.
- D. MPSK Local will allow the cameras to share a key and the scanners to share a different key
Answer: D
Explanation:
A). Have the installers generate keys with ClearPass Self Service Registration. - While this could theoretically work, it would require each installer to manually register each device. This can be cumbersome and time-consuming, especially given the number of devices in this scenario.
B). Have the MPSK gateway derive the unique pre-shared keys based on the MAC OUI. - This is not a typical feature of MPSK. MPSK can assign unique keys based on full MAC addresses, not just the MAC OUI (which only identifies the manufacturer and not individual devices).
C). Use MPSK Local to automatically provide unique pre-shared keys for devices. - MPSK Local can be set up to assign unique pre-shared keys based on MAC addresses, which would reduce administrative overhead. However, the "automatic" provision is somewhat misleading, as the keys and MAC addresses would still need to be predefined in the MPSK Local configuration.
D). MPSK Local will allow the cameras to share a key and the scanners to share a different key. - This is a valid use of MPSK. It would be less secure than giving each device its unique key (since all cameras would share one key and all scanners another), but it would reduce the administrative overhead considerably. This approach balances security and simplicity.
Given the primary goal of reducing IT administration overhead while still maintaining a relatively secure environment, the best answer would be:
D). MPSK Local will allow the cameras to share a key and the scanners to share a different key.
NEW QUESTION # 75
What is a primary benefit of BSS coloring?
- A. BSS color tags improve security by identifying rogue APs and removing them from the network.
- B. BSS color tags improve performance by allowing clients on the same channel to share airtime.
- C. BSS color tags are applied to Wi-Fi channels and can reduce the threshold for interference
- D. BSS color tags are applied to client devices and can reduce the threshold for interference
Answer: C
Explanation:
Explanation
BSS coloring is a mechanism that helps identify the BSS Basic Service Set. A BSS is a set of interconnected stations that can communicate with each other. BSS can be an independent BSS or infrastructure BSS. An independent BSS is an ad hoc network that does not include APs, whereas the infrastructure BSS consists of an AP and all its associated clients. on the same channel and differentiate them from other BSS on the same channel12. Each BSS is assigned a color code, which is a 6-bit value that is carried in the PHY header of the Wi-Fi frames12. By using BSS coloring, the APs and clients can reduce the threshold for interference detection and avoid unnecessary backoff or retransmissions when they detect frames from other BSS with different colors12. This can improve the spectral efficiency and throughput of the network12. The other options are incorrect because they do not describe the primary benefit of BSS coloring.
NEW QUESTION # 76
What are two important metrics for network performance monitoring? (Select two.)
- A. Packet loss
- B. Latency
- C. IP address range
- D. VLAN ID
Answer: A,B
NEW QUESTION # 77
Due to a shipping error, five (5) Aruba AP-515S and one (1) Aruba CX 6300 were sent directly to your new branch office. You have configured a new group persona for the new branch office devices in Central, but you do not know their MAC addresses or serial numbers. The office manager is instructed via text message on their smartphone to onboard all the new hardware into Aruba Central.
What application must the office manager use on their phone to complete this task?
- A. Aruba Central App
- B. Aruba Onboard App
- C. Aruba CX Mobile App
- D. Aruba installer App
Answer: D
Explanation:
Aruba Installer App is a mobile app that simplifies site installations and enables network connectivity for Aruba devices. The app allows the user to scan the barcode of the device and add it to the network using Aruba Central. The app also automates importing Aruba devices into Aruba NetEdit for intelligent configuration management and continuous conformance validation.
NEW QUESTION # 78
Your Director of Security asks you to assign AOS-CX switch management roles to new employees based on their specific job requirements After the configuration was complete, it was noted that a user assigned with the administrators role did not have the appropriate level of access on the switch.
The user was not limited to viewing nonsensitive configuration information and a level of 1 was not assigned to their role.
Which default management role should have been assigned for the user?
- A. config
- B. sysadmin
- C. helpdesk
- D. operators
Answer: B
NEW QUESTION # 79
What are two advantages of splitting a larger OSPF area into a number of smaller areas? (Select two )
- A. It reduces processing overhead.
- B. It increases stability
- C. It extends the LSDB
- D. It reduces the total number of LSAs
- E. it simplifies the configuration.
Answer: A,B
Explanation:
Splitting a larger OSPF area into a number of smaller areas has several advantages for network scalability and performance. Some of these advantages are:
It increases stability by limiting the impact of topology changes within an area. When a link or router fails in an area, only routers within that area need to run the SPF algorithm and update their routing tables. Routers in other areas are not affected by the change and do not need to recalculate their routes.
It reduces processing overhead by reducing the size and frequency of link-state advertisements (LSAs). LSAs are packets that contain information about the network topology and are flooded within an area. By dividing a network into smaller areas, each area has fewer LSAs to generate, store, and process, which saves CPU and memory resources on routers.
It reduces bandwidth consumption by reducing the amount of routing information exchanged between areas. Routers that connect different areas, called area border routers (ABRs), summarize the routing information from one area into a single LSA and advertise it to another area. This reduces the number of LSAs that need to be transmitted across area boundaries and saves network bandwidth.
NEW QUESTION # 80
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HP HPE7-A01 exam consists of 60 multiple-choice questions, which must be completed within 90 minutes. The passing score for HPE7-A01 exam is 70%, and candidates who achieve this score will receive the Aruba Certified Campus Access Professional (ACCP) certification. Aruba Certified Campus Access Professional Exam certification is recognized globally and signifies that the holder has demonstrated expertise in designing and implementing secure wireless solutions in campus environments.
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