Important HPE6-A86 Exam Questions

Answer: A

Explanation:

The correct answer is A. The CX 6300M VSF stack is the Layer 3 gateway for VLAN 200 clients, so the DHCP relay configuration must be applied to interface vlan 200, the SVI for the client VLAN. The SVI should use an address in the client subnet, such as 192.168.200.1/24, and the remote DHCP server should be defined with the AOS-CX ip helper-address command. HPE Aruba Networking AOS-CX documentation states that ip helper-address <IPV4-ADDR> defines the address of a remote DHCP server or DHCP relay agent and that the DHCP relay agent forwards DHCP client requests to the defined servers. Option B is incorrect because VLAN 1 is not the VLAN 200 client gateway. Options C and D are incorrect because dhcp-relay server is not the correct AOS-CX command shown for configuring IPv4 DHCP relay on the SVI. The correct configuration is ip helper-address 192.168.1.100 under interface vlan 200.

Answer: B

Explanation:

The correct answer is B. RESTful API is a secure way to monitor CX switches. HPE Aruba Networking AOS-CX supports a REST API as a management and automation interface. The REST API is accessed through HTTPS, which provides encrypted communication for management operations. This makes it a secure monitoring and automation option for a customer using an open-source network management platform that can integrate through APIs. Option A is incorrect because RMON is a monitoring feature, but it is not the best answer for secure modern monitoring access. Option C is not the best answer because using a dedicated out-of-band management port improves management-plane isolation, but it is not itself a monitoring protocol or method. Option D is incorrect because SNMPv2 is not considered secure; HPE Aruba hardening guidance recommends SNMPv3 instead of older SNMP versions because older versions lack authentication and encryption protections. Therefore, from the listed options, RESTful API is the best secure monitoring method for CX switches. (arubanetworking.hpe.com)

Answer: C

Explanation:

The correct answer is C. Input errors have occurred. The interface output shows CRC/FCS errors with a value of 1254 under the RX column. CRC/FCS errors are receive-side frame check errors, so they indicate that the switch has received corrupted frames on this interface. HPE Aruba Networking AOS-CX show interface documentation lists interface statistics including packets, bytes, dropped frames, pause frames, errors, CRC/FCS, collisions, runts, and giants, which confirms that CRC/FCS is part of the interface error statistics. Option A is incorrect because the output says VLAN Mode: access and Access VLAN: 90; an access VLAN is untagged toward the endpoint, not an 802.1Q tagged trunk VLAN. Option B is incorrect because the MTU is shown as 1500, and the Jumbos counter is 0, so the output does not indicate jumbo-frame use. Option D is incorrect because the shown output does not state that PoE is disabled. The key troubleshooting clue is the nonzero receive CRC/FCS counter. (arubanetworking.hpe.com)

Answer: B

Explanation:

The correct answer is B. Push-to-talk radio. Half-duplex communication allows transmission in both directions, but not at the same time. A push-to-talk radio is a common example because one person presses the talk button and transmits while the other side listens; then the first person stops transmitting so the other person can reply. This differs from a telephone system, which is normally full-duplex because both parties can speak and hear at the same time. FM radio broadcast is simplex, because communication normally flows in only one direction from the broadcaster to receivers. A fibre-optic pair is commonly used for full-duplex communication because separate fibers or transmit/receive paths can support simultaneous sending and receiving. In HPE Aruba Networking switch documentation, duplex is discussed as a Layer 1/Layer 2 port characteristic, with half-duplex supported for some Ethernet speeds and full-duplex used for modern switched links. Therefore, the option that best represents half-duplex behavior is push-to-talk radio.

Answer: C

Explanation:

The correct answer is C. auditors. HPE Aruba Networking AOS-CX documentation for the 6200, 6300, and 6400 switch series identifies three built-in user groups: administrators, operators, and auditors. These built-in groups have fixed privileges. The administrators group has full privileges, including full CLI access, firmware upgrades, configuration viewing, configuration changes, and user account management. The operators group has no switch configuration privileges and is mainly limited to basic display-only access and viewing nonsensitive configuration information. The auditors group is restricted to audit-related functions. Since the question asks which user group exists by default on a CX 6400 Series switch, ''auditors'' is the only listed option that matches the HPE Aruba Networking AOS-CX built-in groups. The other options---read-only, restricted, and reporting---are not listed as default built-in AOS-CX user groups for the CX 6400 platform. This makes option C the verified answer.