無料で使えるHPE7-A08試験ブレーン問題集認定ガイド問題と解答 [Q19-Q34]

無料で使えるHPE7-A08試験ブレーン問題集認定ガイド問題と解答

HPE7-A08認定概要最新のHPE7-A08のPDF問題集

質問 # 19
Which CLI command enables MAC address security on a switch port?

A. switchport mac-security enable
B. port-security mac-address sticky
C. mac-address-limit enable
D. secure-mac enable

正解：B

解説：
The port-security mac-address sticky command dynamically learns MAC addresses and limits devices per port, preventing unauthorized access.

質問 # 20
Which CLI command configures an Aruba CX switch to use a RADIUS server for authentication?

A. radius-server host 192.168.1.1 key Aruba123
B. enable radius 192.168.1.1
C. aaa authentication radius-server 192.168.1.1
D. set authentication radius 192.168.1.1

正解：A

解説：
The radius-server host command defines a RADIUS server IP and shared key, allowing AAA services for secure authentication of users and devices.

質問 # 21
A Linux SFTP server is configured for IP address 192.168.1.100, and the CX 6325 switch has a management IP address 192.168.1.200.
How can you back up the saved switch configuration to a remote location?

A. Use the command scp [email protected]:/running-config on the SFTP server.
B. Use the command scp [email protected]:/startup-config on the SFTP server.
C. Use the command copy startup-config sftp://[email protected]/switch_config.cfg vrf mgmt on the switch.
D. Use the command copy startup-config scp://[email protected]/switch_config.cfg vrf default on the switch.

正解：C

質問 # 22
Which two security features prevent unauthorized MAC address spoofing on an Aruba CX switch? (Select two)

A. MAC lockdown
B. BPDU Guard
C. DHCP snooping
D. Dynamic ARP Inspection (DAI)

正解：A、C

解説：
MAC lockdown restricts which MAC addresses can connect to a port, while DAI inspects ARP packets to prevent spoofing attacks that manipulate IP-to-MAC mappings.

質問 # 23
Which two commands are used to troubleshoot Layer 3 connectivity on an Aruba CX switch? (Select two)

A. ping
B. show vlan
C. show clock
D. traceroute

正解：A、D

解説：
The ping command verifies connectivity to a remote device, while traceroute shows the path traffic takes, assisting in diagnosing network issues.

質問 # 24
An Aruba CX8100 VSX has the following state for LACP:

What can be observed based on the output?

A. The local lag27 would need to have individual AGGR key
B. The peer lag253 needs to have a valid AGGR key
C. The local lag253 configuration is set as a custom
D. The local lag253 configuration is set as default

正解：B

解説：
LAG253 on the local switch shows ASFNCD (indicating it is not synchronized) and the partner AGGR key is 0, which is invalid.
A partner must advertise a valid aggregation key for a multi-chassis LAG to form correctly.
Because the remote device is sending an AGGR key of 0, the LAG cannot come up, and this is the condition observed in the output.

質問 # 25
Which two Aruba CX switch features enhance resiliency and network redundancy? (Select two)

A. Virtual Switching Extension (VSX)
B. Aruba NetEdit
C. Zero Touch Provisioning (ZTP)
D. Multi-Chassis Link Aggregation (MC-LAG)

正解：A、D

解説：
MC-LAG ensures link redundancy, preventing single points of failure, while VSX enables active-active failover between core switches, improving network availability.

質問 # 26
What is correct regarding the operation of VSX and multicasting with PIM-SM routing configured?

A. Each VSX peers runs PIM and builds its own group database.
One of the VSX peers is elected as the designated router (DR) to forward multicast streams to a receiver VLAN
B. Each VSX peers runs PIM and builds its own group database.
Both VSX peers can forward multicast streams to receivers in a VLAN, achieving load sharing
C. Each VSX peers runs PIM and creates a shared group database.
One of the VSX peers is elected as the designated router (DR) to forward multicast streams to a receiver VLAN
D. Each VSX peers runs PIM and creates a shared group database.
Both VSX peers can forward multicast streams to receivers in a VLAN, achieving load sharing

正解：A

質問 # 27
You are a wireless network administrator at an outdoor container yard. A new multicast application that communicates with the GPS on the container handling equipment is being added to the network. Which setting will increase the reliability and send traffic at the highest possible data rate?

A. Enable WiFi Multimedia.
B. Dynamic Multicast Optimization
C. Multicast Transmission Optimization
D. Increase the basic rate from 6 to 24 Mbps.

正解：B

質問 # 28
Which statement is valid when enabling ARP protection features on HPE Aruba Networking CX switches?

A. Client lease time on the DHCP server should be at least 3600s before enabling ARP protection.
B. Once you enable DHCP snooping, you can enable ARP protection, and you will have full information to mitigate security risks.
C. DHCP server utilization is required for IP to MAC binding to enable ARP protection.
D. In an active network, you should generally wait at least a week after enabling DHCP snooping to enable ARP protection.

正解：D

解説：
When enabling ARP protection, it is best practice to wait at least a week after enabling DHCP snooping before enabling ARP protection in a live network. This allows the DHCP snooping binding table to stabilize, ensuring ARP protection has accurate IP-MAC bindings, reducing false positives.
Immediate ARP protection may cause legitimate traffic to be dropped.
Lease times and DHCP server utilization are less critical.
This staged approach minimizes disruption.
References:
ArubaOS-CX Security Features Best Practices
HPE Aruba ARP Protection Configuration Guide
Aruba Network Security Deployment Guidelines

質問 # 29
Which two Aruba CX switch series are best suited for industrial environments requiring ruggedized hardware? (Select two)

A. Aruba CX 8400
B. Aruba CX 8325
C. Aruba CX 6200
D. Aruba CX 4100i

正解：A、D

解説：
The CX 4100i is specifically designed for harsh environments, while the CX 8400 offers modular, high-performance switching for mission-critical networks.

質問 # 30
Which feature enables Aruba CX switches to support high-bandwidth applications with multi-gigabit speeds?

A. Virtual Switching Extension (VSX)
B. Aruba NetEdit
C. Smart Rate Ports
D. Multi-Chassis Link Aggregation (MC-LAG)

正解：C

解説：
Smart Rate Ports provide 1/2.5/5/10GbE speeds, ensuring scalable bandwidth for high-demand applications like Wi-Fi 6, video conferencing, and IoT devices.

質問 # 31
A cabling technician has relocated an access point to your company's boardroom. Users are now reporting choppy video when making a video call from their devices in the boardroom. Which troubleshooting methodology would be the most suitable to start?

A. Top-down/Bottom-up
B. Divide and conquer
C. Replace configuration
D. Follow the path

正解：A

質問 # 32
You are configuring OSPF between two CX switches but cannot see any neighbors. Based on the output, how would you fix the problem?

A. Remove the max-metric router-lsa on-startup to allow faster formation of adjacency.
B. Configure no ip ospf passive on the VLAN 102 interface.
C. Configure no ip ospf cost 100 on the VLAN 102 interface.
D. Configure ip ospf network broadcast on the VLAN 102 interface.

正解：B

解説：
OSPF has been configured with passive-interface default, which makes all interfaces passive and stops them from sending OSPF hellos. VLAN 102 is therefore not forming adjacencies. Removing the passive setting for VLAN 102 (using the "no ip ospf passive" / "no passive-interface vlan 102" equivalent) allows OSPF hellos and the neighbor relationship to form.

質問 # 33
Examine the AOS-CX configuration:

The switches have a default factory password setting NetEdit fails to access the configuration of the AOS-CX switches. What should the administrator do to solve this problem?