2V0-620 · Question #21
When attempting to access a virtual machine, an administrator is unable to login using the vSphere credentials. What two options are probable causes of the authentication failure? (Choose two.)
The correct answer is A. The vSphere credentials have not been granted permissions. B. The vSphere credentials are granted read-only permissions. In vSphere, failing to grant any permissions or granting only read-only permissions prevents a user from successfully logging into or interacting with a virtual machine through the vSphere client.
Question
When attempting to access a virtual machine, an administrator is unable to login using the vSphere credentials. What two options are probable causes of the authentication failure? (Choose two.)
Options
- AThe vSphere credentials have not been granted permissions.
- BThe vSphere credentials are granted read-only permissions.
- CThe vSphere credentials are granted no-access permissions.
- DThe vSphere credentials are not a member of the local administrator group.
How the community answered
(25 responses)- A92% (23)
- C4% (1)
- D4% (1)
Why each option
In vSphere, failing to grant any permissions or granting only read-only permissions prevents a user from successfully logging into or interacting with a virtual machine through the vSphere client.
When vSphere credentials have not been granted any permissions on the virtual machine or its parent inventory object, vSphere role-based access control blocks all access because no role has been assigned to allow console or login interaction, causing authentication failure.
The Read-Only role in vSphere permits a user to view inventory objects but does not grant the 'Virtual Machine - Interaction' privileges needed to open a console or initiate a login session to the VM, resulting in an access failure when attempting to log in.
The No-Access permission in vSphere explicitly removes all visibility of the object from the user's inventory, meaning the user would not encounter a login prompt at all - this is a more absolute block rather than a typical authentication failure scenario.
Membership in the local administrator group is a guest operating system concept and does not control vSphere-level authentication; vSphere uses its own role-based permission model independent of guest OS user accounts.
Concept tested: vSphere role-based access control and VM permissions
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