Here are some specific study materials you can download to prepare for the VCP 5.5 VCP510 1 exam:

Unzip the main download folder to a dedicated directory on your local drive (ideally C:\VCP6 ).

Build 3000743 (The final, most stable iteration of the 5.5 release)

often provides evaluation licenses for older versions of vSphere to help with VCP certification prep. Specific Builds : Ensure you are downloading vSphere 5.5 Update 1

Are you installing this on or as a nested lab inside a newer hypervisor?

Use the standalone vSphere Client 5.5 (C# Desktop Client) for individual host or basic vCenter configuration. For the Web Client, you must configure an isolated administration workstation running a legacy web browser version (such as Pale Moon or older versions of Firefox portable) bundled with a frozen version of the Flash plugin. Never expose this administration workstation to the public internet. SSL and TLS Protocol Mismatches

Note: While VCP 5.5.1 can be forced, Microsoft’s driver signature enforcement may block it.

Gives advanced tuners the power to extract raw binary dumps from compressed vehicle firmware formats ( *.SGO , *.FRF , *.ODX ).

It seems you're asking for a explanation of "vCP 5.5.1" and a download source. However, the exact term "vCP 5.5.1" is ambiguous in enterprise software. Based on common usage, you likely mean one of the following:

expose a vSphere 5.5 host or vCenter to the public internet.

: Includes a "Login finder" for scanning CAN and UDS controllers and support for ZDC-container data loading. Installation & Download Overview Software Source : Official software is typically downloaded from the VCP System server