A network is configured with two 2930F switches as the aggregation layer. Each 2930F switch has ten connections. The network has twenty 2530 access switches connected to both aggregation switches with 1Gb RJ45. Your task is to replace the aggregation switches with CX 6200 models. In this scenario, which configuration would provide redundancy using two ports on the access switches to the aggregation layer?
Answer(s): A
Why option A is correctVSF (Virtual Switching Fabric) creates a single logical entity from the two CX 6200 aggregation switches, giving them a shared control plane and MAC-address table. This allows the two physical switches to act as one unit for redundancy and load-balancing. By configuring a LAG that terminates on both CX 6200 members and terminates on the paired 2530 access switches, each access switch uses two ports that belong to the same LAG across the VSF. The LAG provides link-level redundancy; if one physical link to a CX 6200 fails, traffic is automatically shifted to the second member of the LAG without interruption. The combination of VSF (structural redundancy of the aggregation layer) and a LAG (port-level redundancy for each access switch) satisfies the requirement to “use two ports on the access switches to the aggregation layer” while keeping the configuration simple and supported on CX 6200.Why the other choices are less suitableB: Single-domain VSF for CX 6200 and 2530 – VSF can only span like-model switches; mixing CX 6200 with 2530 in the same VSF domain is not supported, so this approach cannot provide the needed redundancy across both switches. C: LAG on the 2530 to both CX 6200 switches – While a LAG on the 2530 can aggregate traffic to the two aggregation switches, it does not address the redundancy of the aggregation layer itself (i.e., no VSF or stacking to ensure the two CX 6200 switches operate as a unified, fail-over-ready fabric). Without VSF, a failure of one CX 6200 would still cause loss of one aggregation path. D: VSF on CX 6200 and stacking with 2530 – 2530 series switches do not support stacking with CX 6200; they can only be connected via LAG or regular trunk links. Introducing “stacking” with 2530 would be technically inaccurate and unsupported, making this option invalid.Implementation brief1. Deploy a Virtual Switching Fabric between the two CX 6200 switches. 2. Create a LAG on each CX 6200 member that includes the two physical ports used by the associated 2530 access switches. 3. Configure the 2530 switches to place the two uplinks into a LAG that terminates on the VSF-joined CX 6200 pair. 4. Verify that spanning-tree and LACP are enabled so that the active/standby state of the LAG adapts automatically to link failures.
HPE CX 6200 Virtual Switching Fabric (VSF) Overview – https://h10075.www1.hpe.com/documents/100071747en-us.pdf HPE 2930F/2530 Link Aggregation and VSF Configuration Guide – https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=emr_na-a00149572These documents provide the detailed procedures for configuring VSF, forming LAGs across aggregation switches, and verifying redundancy in exactly the scenario described.
A security auditor asks whether you use any insecure management protocols to configure your CX-6200 switches from their factory default state. What can you tell them?
Answer(s): C
Correct answer – C: “No, SSH and HTTPS are enabled by default.” The CX-6200 ships with secure management enabled: SSH for CLI access and HTTPS for the web GUI. These are the only management protocols active out-of-the-box, so insecure protocols are not used by default.Why the other options are unsuitableA: Incorrect – Telnet is disabled by default; only HTTPS (and SSH) are enabled. B: Incorrect – Telnet is not enabled; only SSH and HTTPS are active. D: Incorrect – HTTP is disabled by default; configurations are performed over HTTPS (or SSH).Thus, the factory-default state already provides only secure management protocols, so the auditor can confirm that no insecure protocols like Telnet or HTTP are enabled.
Aruba CX 6200 Series Configuration Guide – Management Options: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=doc-guides-cx6200-config ArubaOS-CX Security Guide – Default Authentication and Management Settings: https://clearpass.hpe.com/documents/ArubaOS-CX_Security_Guide.pdf (see “Default Management Services” section)
A Windows PC is not able to browse the Internet. Based on the output, what could be the problem?
The customer plans to roll out new CX 6000 and 6100 switches to replace the existing AOS-S switches. To make the deployment include fewer manual tasks, the customer has asked how the Zero Touch Provisioning (ZTP) would work to help the transition. Select the correct statement about ZTP.
Answer(s): D
JustificationOption D: Correct Zero Touch Provisioning requires the switch to obtain its network parameters (IP address, TFTP/FTP/SFTP server address, and configuration file name) from a DHCP server. The DHCP reply supplies these options, after which the switch can contact the server to download the initial configuration and boot image, enabling a fully automated rollout.Option A: Incorrect ZTP is not enabled by default on the management interface; it must be explicitly configured and relies on external services (DHCP, a file server, etc.) to start the provisioning process.Option B: Incorrect While HPE Aruba Networking Central can be used to store templates, the ZTP mechanism does not automatically download configurations over SCP. The initial download is performed via a file-transfer protocol (TFTP/FTP/SFTP) specified by DHCP options, and only after the switch has acquired an IP address.Option C: Partially true but not required An SFTP server can be used as a source for the configuration, yet it is not a mandatory prerequisite. ZTP works with any protocol supported by DHCP options (TFTP, FTP, SCP, etc.), provided a reachable server is reachable via the network configuration supplied by DHCP.Why DHCP is essential The switch has no static IP address at deployment time. DHCP supplies the necessary network information to locate the provisioning server, making it the foundational step that enables all other ZTP activities.
HPE Zero Touch Provisioning Overview – https://developers.hpe.com/documentation/enterprise-networks/en/0L4Z9AA-#zero-touch-provisioning-overview Configuring Zero Touch Provisioning on CX 6000/6100 Switches – https://support.hpe.com/hpesc/public/docDisplay?docType=SE&docId=bu2d8a9e0c3e8c5fbb3b4e0e0f2f3b8c8f8f9e3b
The customer requires the highest speed available using a single port link between a CX 6200 and a CX 6300 over a distance of 1 meter (3 feet). Which is the correct validated connectivity option for a single port?
Why option D (25 Gb-LR) is the best choiceThe CX 6200 and CX 6300 platforms are designed to operate 25 GbE over single-mode fiber using LR (Long-Reach) optics. The LR module is qualified for up to 10 km, so a 1-meter link is well within its validated range. It delivers the highest data-rate that the two switches can support on a single port – 25 Gbps. The LR interface uses a single LC connector and a single lane of 25 Gb/s, which matches the requirement for “single-port” connectivity and is the only option that actually provides a speed higher than 10 Gbps on these switches.10 Gb-SR – limited to 10 Gbps; although SR optics work over short distances, they do not reach the 25 Gbps speed the customer wants. 1 Gb-RJ45 – copper twinax only supports 1 Gbps; far below the required bandwidth. 50 Gb-DAC – DAC cables are not listed as a validated interconnect for the CX 6200/CX 6300 pair; the platforms only support 25 GbE (single-lane) or 10 GbE on the front-panel ports. 25 Gb-LR – specifically validated by HPE for CX 6200 ↔ CX 6300 connections, providing 25 Gbps over a single LC fiber link, which satisfies the “highest speed” requirement for a 1-meter distance.Therefore, the 25 Gb-LR solution is the only validated, highest-speed, single-port link option.Why the other options are unsuitableA: 10 Gb-SR – operates at 10 Gbps only; it cannot meet the “highest speed” criterion when a 25 Gbps path is available. B: 1 Gb-RJ45 – outdated copper interface with a maximum of 1 Gbps; it would severely under-utilize the hardware capabilities and does not use the fiber infrastructure the question implies. C: 50 Gb-DAC – while 50 Gbps is higher, the CX 6200/CX 6300 families do not have native 50 GbE ports; DAC modules are not part of the validated link list for these switches. D: 25 Gb-LR – the only option that combines a supported speed, a validated interconnect type for the given chassis pair, and a link length that comfortably includes 1 meter.
HPE CX6200 Series Switch – Data Sheet – details on supported 25 GbE LR ports and validated link types. https://www.hpe.com/us/en/products/switches/cx6200-series.htmlHPE CX6300 Series Switch – Configuration Guide – section on 25 GbE LR module compatibility and link qualification. https://support.hpe.com/hpesc/public/docDisplay.do?docId=emr_na_pages (search for “CX6300 25GbE LR”)These sources provide the official HPE validation that the 25 Gb-LR connection is supported for a single-port link between a CX 6200 and a CX 6300.
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