HPE6-A86 Sample Questions & Answers

The configuration session timeout command starts a timed session. If the administrator does not enter the configuration session confirm command within the specified timeout period (10 minutes in this case), the switch automatically discards all changes made during the session and reverts to the configuration that existed before the session started. This is a critical safety feature for remote management.

For a fiber link to come up, the transceivers (SFP/SFP+) at both ends must be compatible. Common mismatches include using a multi-mode (SR) transceiver on one end and a single-mode (LR) transceiver on the other, or using different wavelength transceivers. This would prevent the optical link from establishing, resulting in a 'down' port status. VLAN mismatches or STP issues occur at Layer 2 and would not typically cause the physical link to be down.

Aruba NetEdit is specifically designed for intelligent network automation and orchestration. Its key features include centralized configuration, validation of changes before deployment, conformance checks against a baseline, and detection of configuration drift, making it the correct tool for these tasks.

ARP operates at the boundary of Layer 2 and Layer 3. When a device needs to send a packet to another device on the same local network, it knows the destination IP address but needs the destination MAC address to build the Layer 2 Ethernet frame. ARP is the protocol used to broadcast a request (Who has IP address X?) and receive a reply (I have IP address X, my MAC address is Y.)

This is the correct command sequence. vlan trunk native 10 specifies that frames belonging to VLAN 10 will be sent untagged across this link. vlan trunk allowed 10,20,30 explicitly permits traffic for all three required VLANs. It is important to include the native VLAN in the allowed list as well.

BPDU Guard should be enabled on all access ports where end devices (and not other switches) are expected. If any Spanning Tree Bridge Protocol Data Units (BPDUs) are received on a port with BPDU Guard enabled, it immediately puts the port into an err-disabled state, effectively disconnecting the rogue switch from the network.

Root Guard is another mechanism to protect the STP topology. When enabled on a port, it prevents that port from ever becoming an STP root port. If a superior BPDU (from a switch with a better bridge ID) is received on a Root Guard-enabled port, the port is put into a root-inconsistent state, effectively ignoring the rogue switch's attempt to become root without shutting down the port entirely.

The Link Aggregation Control Protocol (LACP), defined in IEEE 802.3ad, is the standards-based protocol for dynamically negotiating and managing LAGs. Configuring lacp mode active on the LAG interface tells the switch to actively initiate LACP negotiations with the peer switch, ensuring the LAG is formed correctly and dynamically.

In AOS-CX, services like SSH and Telnet are managed per-VRF. The command no telnet-server disables the Telnet service globally. The command ssh-server vrf mgmt enable specifically enables the SSH server on the management VRF, which is the standard and most secure practice for out-of-band management access. This combination meets the requirements precisely.

The ping command sends ICMP Echo Request messages to a target IP address and waits for an Echo Reply. It is the most direct and fundamental tool for verifying Layer 3 reachability. Pinging the default gateway IP address will quickly confirm whether the workstation can communicate with its first-hop router at the IP layer.

The correct syntax for creating a static route in AOS-CX is ip route / . This command, entered in global configuration mode, adds the specified route to the routing table for the current VRF context (default, in this case).