検証済みのHPE7-A01テスト問題集と解答で正確な150問
HP HPE7-A01テストエンジンPDFで全問無料問題集
質問 # 61
Using Aruba best practices what should be enabled for visitor networks where encryption is needed but authentication is not required?
- A. Opportunistic Wireless Encryption
- B. Wired Equivalent Privacy
- C. Open Network Access
- D. Wi-Fi Protected Access 3 Enterprise
正解：A
解説：
Explanation
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. References: https://www.arubanetworks.com/assets/tg/TG_OWE.pdf
質問 # 62
List the WPA 4-Way Handshake functions in the correct order.
正解：
解説：
Explanation:
* Proves knowledge of the PMK
* Exchanges messages for generating PTK
* Distributes an encrypted GTK to the client
* Sets first initialization vector (IV)
質問 # 63
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. Factory default and reboot the gateway to restart the process.
- B. Move the cable on the gateway to G0/0/1. and add the device's MAC and Serial number in Central
- C. Turn off the DHCP scope on the gateway, and set DNS correctly on the gateway to reach Aruba Activate
- D. Move the cable on the gateway from port G0/0V1 tc port GO 0.0
正解：D
解説：
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.
質問 # 64
Your customer has asked you to assign a switch management role for a new user The customer requires the user role to only have Web Ul access to the System > Log page and only have access to the GET method for REST API for the /logs/event resource Which default AOS-CX user role meets these requirements?
- A. operators
- B. sysops
- C. auditors
- D. administrators
正解：C
解説：
The auditors role is the default AOS-CX user role that meets the requirements of having Web UI access to the System > Log page and having access to the GET method for REST API for the /logs/event resource. The auditors role has a level of 1 and allows read-only access to most commands except those related to security or passwords. It also allows access to the Web UI and REST API with limited permissions. The other options are incorrect because they either have higher levels of access or do not allow access to the Web UI or REST API.
References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch01.html
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch04.html
質問 # 65
your customer has asked you to assign a switch management role for a new user The customer requires the user role to View switch configuration information and have access to the PUT and POST meth0ds for REST API.
Which default AOS-CX user role meets these requirements?
- A. auditors
- B. helpdesk
- C. sysops
- D. administrators
正解：C
解説：
Explanation
The correct answer is C. sysops.
The sysops user role is a predefined role that allows users to view switch configuration information and have access to the PUT and POST methods for REST API. The sysops user role can also use the PATCH and DELETE methods for REST API, but not for all resources. The sysops user role is suitable for users who need to perform system operations on the switch, such as backup, restore, upgrade, or reboot.
According to the AOS-CX REST API Reference basics1, one of the predefined user roles is:
sysops: Users with this role can view switch configuration information and have access to the PUT and POST methods for REST API. They can also use the PATCH and DELETE methods for REST API, but not for all resources. Users with this role can perform system operations on the switch, such as backup, restore, upgrade, or reboot.
The other options are incorrect because:
A: administrators: Users with this role have full access to all switch configuration information and all REST API methods. This role is more than what the customer requires.
B: auditors: Users with this role can only view switch configuration information and have access to the GET method for REST API. They cannot use the PUT and POST methods for REST API.
D: helpdesk: Users with this role can view switch configuration information and have access to the GET method for REST API. They can also use the PATCH method for REST API, but only for a limited set of resources. They cannot use the PUT and POST methods for REST API.
質問 # 66
A company deployed Dynamic Segmentation with their CX switches and Gateways After performing a security audit on their network, they discovered that the tunnels built between the CX switch and the Aruba Gateway are not encrypted. The company is concerned that bad actors could try to insert spoofed messages on the Gateway to disrupt communications or obtain information about the network.
Which action must the administrator perform to address this situation?
- A. Enable Enhanced PAPI security
- B. Enable GRE security
- C. Enable Enhanced security
- D. Enable Secure Mode Enhanced
正解：A
解説：
PAPI is the protocol that is used to establish tunnels between the CX switch and the Aruba Gateway for Dynamic Segmentation1. By default, PAPI uses a simple checksum to verify the integrity of the messages, but it does not encrypt the payload2. This could expose the network to spoofing or replay attacks by malicious actors. To address this situation, the administrator must enable Enhanced PAPI security, which uses AES-256 encryption and HMAC-SHA1 authentication to protect the tunnel traffic2. Enhanced PAPI security can be enabled on the CX switch by using the command system papi enhanced-security enable3. This will ensure that the tunnels built between the CX switch and the Aruba Gateway are encrypted and authenticated.
質問 # 67
You need to ensure that voice traffic sent through an ArubaOS-CX switch arrives with minimal latency.
What is the best scheduling technology to use for this task?
- A. DWRR queuing
- B. QoS shaping
- C. Strict queuing
- D. Rate limiting
正解：C
解説：
Strict queuing is the best scheduling technology to use for voice traffic on an AOS-CX switch.
Scheduling is a mechanism that determines how packets are transmitted from different queues on an egress port. Strict queuing is a scheduling method that gives the highest priority queue absolute preference over all other queues, regardless of their size or utilization. Voice traffic should be assigned to the highest priority queue and scheduled with strict queuing to ensure minimal latency and jitter. The other options are incorrect because they are either not scheduling methods or not optimal for voice traffic.
References:
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
質問 # 68
What is the best practice for handling voice traffic with dynamic segmentation on AOS-CX switches?
- A. Switch authentication and user-based tunneling of the voice traffic.
- B. Central authentication and port-based tunneling of the voice traffic.
- C. Controller authentication and port-based tunneling of all traffic
- D. Switch authentication and local forwarding of the voice traffic
正解：D
解説：
This is the best practice for handling voice traffic with dynamic segmentation on AOS-CX switches. Dynamic segmentation is a feature that allows AOS-CX switches to tunnel user traffic to a controller or another switch based on user roles and policies. For voice traffic, it is recommended to use switch authentication and local forwarding, which means the voice devices are authenticated by the switch and their traffic is forwarded locally without tunneling. This reduces latency and jitter for voice traffic and improves voice quality. The other options are incorrect because they either use central authentication or tunneling, which are not optimal for voice traffic. Reference: https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch05.html https://www.arubanetworks.com/assets/ds/DS_AOS-CX.pdf
質問 # 69
Refer to Exhibit:
A company has deployed 200 AP-635 access points. To take advantage of the 6 GHz band, the administrator has attempted to configure a new WPA3-OWE SSID in Central but is not working as expected.
What would be the correct action to fix the issue?
- A. Change the SSID to WPA3-Enterprise (CNSA).
- B. Change the SSID to WPA3-Personal.
- C. Change the SSID to WPA3-Enterprise (CCM).
- D. Change the SSID to WPA3-Enhanced Open.
正解：D
解説：
Explanation
The correct action to fix the issue is C. Change the SSID to WPA3-Enhanced Open.
WPA3-OWE is not a valid SSID type in Central. OWE stands for Opportunistic Wireless Encryption, and it is a feature that provides encryption for open networks without requiring authentication. OWE is also known as Enhanced Open, and it is one of the options for WPA3 SSIDs in Central1.
According to the Aruba document Configuring WLAN Settings for an SSID Profile, one of the steps to configure a WPA3 SSID is:
* Select the Security Level from the drop-down list. The following options are available:
* WPA3-Personal: This option uses Simultaneous Authentication of Equals (SAE) to provide stronger password-based authentication and key exchange than WPA2-Personal.
* WPA3-Enterprise: This option uses 192-bit cryptographic strength for authentication and encryption, as defined by the Commercial National Security Algorithm (CNSA) suite.
* WPA3-Enterprise (CCM): This option uses 128-bit cryptographic strength for authentication and
* encryption, as defined by the Counter with CBC-MAC (CCM) mode.
* WPA3-Enhanced Open: This option uses Opportunistic Wireless Encryption (OWE) to provide encryption for open networks without requiring authentication.
The other options are incorrect because:
* A. WPA3-Enterprise (CNSA) is a valid SSID type, but it requires 802.1X authentication with a RADIUS server, which may not be suitable for the company's use case.
* B. WPA3-Personal is a valid SSID type, but it requires a passphrase to join the network, which may not be suitable for the company's use case.
* D. WPA3-Enterprise (CCM) is a valid SSID type, but it requires 802.1X authentication with a RADIUS server, which may not be suitable for the company's use case.
質問 # 70
Which standard supported by some Aruba APs can enable a customer to accurately locate wireless client devices within a few meters?
- A. 802.11W
- B. 802.11mc
- C. 802.11r
- D. 802.11k
正解：B
解説：
The standard that is supported by some Aruba APs and can enable a customer to accurately locate wireless client devices within a few meters is A) 802.11mc.
802.11mc is an IEEE standard that enables computing devices to measure the distance to nearby Wi-Fi access points using a technique called Fine Timing Measurement (FTM). FTM uses precise timestamps to calculate the round-trip time of Wi-Fi frames between the device and the access point, and then converts it to a distance estimate. By using multiple access points and triangulation methods, the device can determine its location with high accuracy1.
According to the Aruba document 802.11mc Support, this feature is supported on 500 Series, 510 Series, 530 Series, 550 Series, 560 Series and 570 Series access points. These APs act as FTM responders to time measurement queries sent from a client. To configure the AP to send FTM responses, you need to enable the ftm-responder-enable parameter in the WLAN SSID profile1.
質問 # 71
Match the appropriate QoS concept with its definition. (Options may be used more than once or not at all.)
正解：
解説：
質問 # 72
You need to create a keepalive network between two Aruba CX 8325 switches for VSX configuration How should you establish the keepalive connection?
- A. routed port in custom VRF
- B. SVI, VLAN trunk allowed all on ISL in default VRF
- C. SVI, VLAN trunk allowed all on ISL in custom VRF
- D. loopback 0 and OSPF area 0 in default VRF
正解：A
解説：
To establish a keepalive connection between two Aruba CX 8325 switches for VSX configuration, you need to use a routed port in custom VRF. A routed port is a physical port that acts as a layer 3 interface and does not belong to any VLAN. A custom VRF is a virtual routing and forwarding instance that provides logical separation of routing tables. By using a routed port in custom VRF, you can isolate the keepalive traffic from other traffic and prevent routing loops or conflicts. The other options are incorrect because they either do not use a routed port or do not use a custom VRF. References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch07.htmlhttps://www.aruba
質問 # 73
For the Aruba CX 6400 switch, what does virtual output queueing (VOQ) implement that is different from most typical campus switches?
- A. large ingress packet buffers
- B. per port ASICs
- C. VSX
- D. large egress packet buffers
正解：A
解説：
The Aruba CX 6400 switch is a modular switch that supports high-performance and high-density Ethernet switching for campus and data center networks. One of the features that distinguishes the Aruba CX 6400 switch from most typical campus switches is virtual output queueing (VOQ).
VOQ is a technique that implements large ingress packet buffers on each port to prevent head-of- line blocking and packet loss due to congestion2. VOQ allows each port to have multiple queues for different output ports and prioritize packets based on their destination and QoS class2. VOQ enables the Aruba CX 6400 switch to achieve high throughput and low latency for various traffic types and scenarios.
質問 # 74
You are configuring Policy Based Routing (PBR) for a subnet that will be used to test a new default route for your network Traffic originating from 10.2.250.0/24 should use a new default route to 10.1.1.253. Other non-default routes for this subnet should not be affected by this change.
What are two parts of the solution for these requirements? (Select two.)
- A.
- B.
- C.
- D.
- E.
正解：A、C
解説：
Explanation
These are the correct parts of the solution for the requirements of configuring Policy Based Routing (PBR) for a subnet that will be used to test a new default route for your network. Option A defines a PBR policy named test-default-route with a rule named new-default-route that matches traffic from source IP address
10.2.250.0/24 and sets the next hop IP address to 10.1.1.253. Option E applies the PBR policy to VLAN 10 interface, which is the subnet that needs to use the new default route. The other options are incorrect because they either do not match the correct traffic or do not set the correct next hop. References:
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
質問 # 75
Which feature supported by SNMPv3 provides an advantage over SNMPv2c?
- A. Community strings
- B. GetBulk
- C. Encryption
- D. Transport mapping
正解：C
解説：
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. References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/snmp/snmp.htm
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/snmp/snmpv3.htm
質問 # 76
Drag and Drop Question
Match the solution components of NetConductor (Options may be used more than once or not at all.)
正解：
解説：
質問 # 77
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. operators
- B. config
- C. sysadmin
- D. helpdesk
正解：D
解説：
Explanation
The helpdesk role is the default management role that should have been assigned for the user who needs to view nonsensitive configuration information. The helpdesk role has a level of 1 and allows read-only access to most commands except those related to security or passwords. The administrators role has a level of 15 and allows full read-write access to all commands. The operators role has a level of 5 and allows read-write access to most commands except those related to security or passwords. The config role has a level of 10 and allows read-write access to all commands except those related to security or passwords. References:
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/UG/bk01-ch01.html
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/UG/bk01-ch04.html
質問 # 78
What does the 802.3bz standard describe?
- A. AP directed roaming between APs
- B. 2.5Gb and 5Gb Ethernet ports
- C. 60 W and 90W PoE
- D. 60 GHz P2P Wi-Fi
正解：B
解説：
802.3bz is a standard for Ethernet over twisted pair at speeds of 2.5 and 5 Gbit/s. These use the same cabling as the ubiquitous Gigabit Ethernet, yet offer higher speeds. The resulting standards are named 2.5GBASE-T and 5GBASE-T.
Option A: 2.5Gb and 5Gb Ethernet ports
This is because option A shows how to identify the speed of an Ethernet port based on its name and the standard it supports. A port that supports 2.5GBASE-T or 5GBASE-T is a multi-gigabit port that can operate at speeds of up to 2.5 Gbit/s or 5 Gbit/s over twisted pair cables23. Therefore, option A is correct.
1: https://en.wikipedia.org/wiki/2.5GBASE-T_and_5GBASE-T
2: https://kb.netgear.com/000049004/What-is-Multi-Gigabit-Ethernet-and-how-can-I-benefit-from-using- NETGEA
https://arstechnica.com/gadgets/2016/09/5gbps-ethernet-standard-details-8023bz/
質問 # 79
Select the Aruba stacking technology matching each option (Options may be used more than once or not at all.)
正解：
解説：
質問 # 80
Which feature supported by SNMPv3 provides an advantage over SNMPv2c?
- A. Community strings
- B. GetBulk
- C. Encryption
- D. Transport mapping
正解：C
解説：
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.
質問 # 81
A customer wants to enable wired authentication across all their CX switches One of the requirements is that the switch must be able to authenticate a single computer connected through a VoIP phone.
Which feature should be enabled to support this requirement?
- A. Multi-Domain Authentication
- B. Multi-Auth Mode
- C. MAC Authentication
- D. Device-Based Mode
正解：A
解説：
Multi-Domain Authentication is the feature that should be enabled to support the requirement that the switch must be able to authenticate a single computer connected through a VoIP phone. Multi-Domain Authentication is a feature that allows an Aruba CX switch to apply different authentication methods and policies to different devices connected to the same port. For example, a VoIP phone and a computer can be connected to the same port using a single cable, but they can be authenticated separately using different credentials and assigned to different VLANs. The other options are incorrect because they either do not support multiple devices on the same port or do not provide authentication. References: https://www.
arubanetworks.com/techdocs/AOS-CX/10.05/HTML/5200-7540/GUID-7D9E9F6E-5C2A-4F7E-BE6D- A2C3A6C7B9F9.html https://www.arubanetworks.com/assets/tg/TB_ArubaCX_Switching.pdf
質問 # 82
Which statement best describes QoS?
- A. Identifying specific traffic for special treatment
- B. Scoring traffic based on the quality of the contents
- C. Determining which traffic passes specified quality metrics
- D. Identifying the quality of the connection
正解：A
解説：
QoS stands for Quality of Service and is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc.
QoS involves identifying specific traffic for special treatment and applying policies and actions to improve its performance or meet certain service level agreements (SLAs). QoS can help network devices to manage congestion, delay, jitter, packet loss, bandwidth allocation, etc., for different types of traffic. QoS can be implemented at various layers of the network stack and across different network domains.
質問 # 83
Refer to the image.
Your customer is complaining of weak Wi-Fi coverage in their office. They mention that the office on the other side of the hall has much better signal What is the likely cause of this issue7
- A. The AP is using a directional antenna.
- B. The AP is an outdoor access point.
- C. The AP is a remote access point.
- D. The AP is configured in Mesh mode
正解：A
解説：
Explanation
The likely cause of the issue of weak Wi-Fi coverage in the office is that the AP is using a directional antenna.
A directional antenna is an antenna that radiates or receives radio waves more strongly in one or more directions, creating a focused beam of signal. A directional antenna can provide better coverage and performance for a specific area, but it can also create dead zones or weak spots for other areas. The other options are incorrect because they either do not affect the Wi-Fi coverage or do not match the scenario.
References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/rf-fundam
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/antennas.
質問 # 84
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