VMware Certified Professional 2V0-21.20 Certification Flashcards

What is the minimum number of hosts required to configure a vSAN cluster in vSphere 7?

Answer: 3

A standard vSAN cluster requires a minimum of 3 hosts to provide the necessary failure tolerance.

In vSphere 7, which component is responsible for authenticating users to vCenter Server?

Answer: vCenter Single Sign-On (SSO)

vCenter Single Sign-On (SSO) is the authentication broker embedded in vCSA 7 that handles identity and token-based authentication.

Which vSphere 7 feature automatically restarts VMs on surviving hosts when a host fails in a cluster?

Answer: vSphere HA

vSphere HA monitors hosts and automatically restarts VMs on surviving cluster hosts when a failure is detected.

What is a vSphere 7 Distributed Switch (VDS) uplink port group used for?

Answer: Connecting physical NICs (pNICs) on hosts to the distributed switch

Uplink port groups on a VDS connect physical host NICs to the distributed switch fabric.

In vSphere 7, which storage format provides the best random I/O performance for VMs running databases?

Answer: Thick provisioned eager-zeroed VMDK

Eager-zeroed thick VMDKs pre-allocate and zero all space at creation, eliminating zeroing overhead during writes and providing best random I/O performance.

Which vSphere 7 capability allows administrators to apply consistent network policies across all hosts in a datacenter?

Answer: vSphere Distributed Switch (VDS)

The vSphere Distributed Switch manages network configuration centrally in vCenter and applies consistent policies to all associated hosts.

What is the role of a VMkernel port (vmk) in vSphere 7?

Answer: It handles hypervisor-level traffic such as vMotion, management, and storage

VMkernel ports carry ESXi host-level traffic including management, vMotion, vSAN, iSCSI, and NFS, separate from VM traffic.