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A network administrator is troubleshooting a workstation that cannot communicate with a server on a different subnet, even though it can successfully reach other devices on its own subnet. The workstation's default gateway is configured correctly, and other devices on the same VLAN can reach the remote server without issue. Which layer of the OSI model is the most likely location of the problem specific to this single workstation?
Since the workstation can communicate on its local subnet but not across subnets, and other devices on the same VLAN work fine, the issue is isolated to that single host's Layer 3 configuration (such as an incorrect subnet mask causing it to miscalculate whether the destination is local or remote). Layer 1 is ruled out because local communication works. Layers 5 and 7 are higher-layer concerns that would not typically manifest as an inability to reach any remote subnet consistently while local communication remains intact.
A campus network has a single broadcast domain spanning an entire building because all switch ports are assigned to VLAN 1. As the number of connected devices grows, users report slow network performance and excessive broadcast traffic. Which action would most directly address this issue?
Broadcast traffic problems stem from having too many devices in the same broadcast domain. Creating multiple VLANs segments the Layer 2 broadcast domain into smaller, more manageable domains, directly reducing broadcast traffic impact per segment. Increasing uplink speed, enabling jumbo frames, or changing cable media does not reduce the scope of the broadcast domain and would not resolve broadcast-related congestion.
An administrator is deploying two HPE Aruba Networking switches in a wiring closet and wants them to operate as a single logical switch for simplified management, with a single IP address and unified configuration, while also providing chassis-level redundancy using standard stacking cables between fixed-configuration switches.
Which technology should the administrator use?
VSF (Virtual Switching Framework) is HPE Aruba Networking's stacking technology that allows multiple physical switches to be managed as a single logical switch with one IP address and unified configuration, providing redundancy. STP is a loop-prevention protocol, not a stacking technology. LACP aggregates links between devices but does not create a single logical management plane. BGP is a Layer 3 routing protocol unrelated to switch stacking.
An engineer is configuring initial management access on a newly deployed HPE Aruba Networking switch. The security policy requires that all remote CLI management sessions be encrypted to protect credentials and configuration data in transit. The engineer disables Telnet access entirely.
Which protocol should be enabled to meet this requirement while still allowing remote CLI access?
SSH (Secure Shell) provides encrypted remote CLI access, replacing the unencrypted Telnet protocol and satisfying the requirement to protect credentials and data in transit. TFTP is used for unencrypted file transfers (such as firmware or configuration backups), not interactive CLI sessions. SNMPv2 is used for network management/monitoring and does not provide encryption by default. HTTP is an unencrypted web protocol; HTTPS would be the encrypted equivalent, but it is not a CLI access method.
A network administrator manages a large deployment of HPE Aruba Networking switches across multiple branch offices and wants to centrally monitor device health, push firmware updates, and apply configuration templates from a single cloud-based dashboard without needing to individually SSH into each switch.
Which HPE Aruba Networking tool best fits this requirement?
Aruba Central is the cloud-based management platform that provides centralized visibility, firmware management, configuration templates, and monitoring across many switches and sites from a single dashboard. Local CLI over console requires individual, on-site access to each device. A TFTP server only handles file transfers and lacks a management dashboard. Static SNMP polling alone provides monitoring data but not centralized configuration push or firmware management capabilities in an easy-to-use interface.
98 questions covering all exam domains, starting from $20
Exam domains verified against: Official HP HPE6-A86 exam guide, last checked September 2026.
Master core networking concepts from the OSI model through Layer 2 and Layer 3 technologies. This foundation covers Ethernet, broadcast domains, subnetting, ARP, routing basics, and QoS, which underpin all modern switching environments. Understanding these fundamentals is essential before moving to product-specific configuration.
Learn the specific capabilities and differentiators within HPE Aruba's switching product portfolio, including software and hardware features. Become familiar with the range of management options available, from CLI and web interfaces to API, SNMP, Aruba Central, and mobile app management approaches.
Sample question from this domain above: Q3
Develop hands-on skills in configuring HPE Aruba switches for real-world deployment. Work with initial setup, Layer 2 technologies like RSTP, link aggregation and VLANs, Layer 3 IP addressing and routing, and learn to validate solutions using show commands and diagnostic tools.
Sample question from this domain above: Q4
Gain practical troubleshooting skills for both switched and routed networks using general diagnostic tools and methods. This domain focuses on identifying and resolving common issues in production environments where you must maintain network availability and performance.
Learn administrative and management best practices for operating HPE Aruba solutions. Cover network monitoring, administrative tasks, logging, reporting, and operational procedures that keep networks secure, compliant, and performing according to organizational standards.
Sample question from this domain above: Q5
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