Which services for vSAN are provided by NexentaConnect?

Which services for vSAN are provided by NexentaConnect?
A . Encryption and key management
B . Apache and JavaScript
C . NFS and SMB
D . iSCSI and FC

Answer: C

Explanation:

Reference:

https://www.google.lk/url? sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwig8OCcg6zaAhVEKlAKHZRL BrwQFggzMAE&url=https%3A%2F%2Fnexenta.com%2Frs%2Fnexenta2%2Fimages% 2FNexentaConnect_vsan_Datasheet.pdf&usg=AOvVaw0RznW2485ZBfCWZutPUTSy

Which statement is true regarding vSAN and vSphere high availability (HA) interoperability?

Which statement is true regarding vSAN and vSphere high availability (HA) interoperability?

A. The vSAN datastore must be configured as the heartbeat datastore for vSphere HA.

B. vSphere HA must be disabled before enabling vSAN.

C. vSphere HA host isolation must be set to disabled.

D. The vSphere HA heartbeat object can only be assigned the default datastore storage policy.

Answer: B

Explanation:

References: https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.virtualsan.doc/GUID-D68890D8­841A-4BD1-ACA1-DA3D25B6A37A.html

How much is the vSAN datastore raw capacity reduced while the host is in maintenance mode?

The following are the configuration details for a 10-node all-flash vSAN cluster:

All hosts contain one vSAN disk group. Each disk group has 400GB for the cache tier and 1600GB for the capacity tier.

A host in the cluster is placed into maintenance mode. The maintenance mode option selected is "Ensure data accessibility from other hosts".

How much is the vSAN datastore raw capacity reduced while the host is in maintenance mode?
A . 1600GB
B . 400GB
C . 0GB
D . 2000GB

Answer: A

Explanation:

References: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-73493C3C­0DEC-419D-9E36-801B2839A5A5.html

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?
A . Multiple disk groups with larger cache devices should be used.
B . Multiple disk groups with two cache devices per disk group should be used.
C . A single disk group with a small cache device should be used to minimize de-staging write amplification.
D . Two cache devices per disk group should be configured for redundancy.

Answer: A

Explanation:

While 1 to 5 disk groups per host are supported, we recommend a minimum of 2. Adding more disk groups can improve performance. Reference: https://storagehub.vmware.com/t/vmware-vsan/vmware-r-vsan-tm-design-and-sizing-guide/flash-cache­sizing-for-all-flash-configurations-2/

What are three fundamental concepts of vSAN clusters? (Choose three.)

What are three fundamental concepts of vSAN clusters? (Choose three.)
A . Flash devices can be shared between disk groups.
B . A maximum of seven capacity disks per disk group is supported.
C . A maximum of five disk groups per host is supported.
D . Dual socket CPU for each host is required.
E . Once cache drive per disk group is required.

Answer: BCE

Explanation:

Reference: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.configmax.doc/GUID-53C2EEFE­5BB2-422C-B493-8A896E279FC4.html

When implementing vSAN stretched clusters, bandwidth requirements between the preferred and secondary sites are determined by which factors?

When implementing vSAN stretched clusters, bandwidth requirements between the preferred and secondary sites are determined by which factors?
A . Total number of read operations and block size
B . Total number of components and block size
C . Total number of write operations and block size
D . Total number of read operations, total number of write operations and block size

Answer: C

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?
A . Multiple disk groups with larger cache devices should be used.
B . Multiple disk groups with two cache devices per disk group should be used.
C . A single disk group with a small cache device should be used to minimize de-staging write amplification.
D . Two cache devices per disk group should be configured for redundancy.

Answer: A

Explanation:

While 1 to 5 disk groups per host are supported, we recommend a minimum of 2. Adding more disk groups can improve performance. Reference: https://storagehub.vmware.com/t/vmware-vsan/vmware-r-vsan-tm-design-and-sizing-guide/flash-cache­sizing-for-all-flash-configurations-2/

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?
A . Multiple disk groups with larger cache devices should be used.
B . Multiple disk groups with two cache devices per disk group should be used.
C . A single disk group with a small cache device should be used to minimize de-staging write amplification.
D . Two cache devices per disk group should be configured for redundancy.

Answer: A

Explanation:

While 1 to 5 disk groups per host are supported, we recommend a minimum of 2. Adding more disk groups can improve performance. Reference: https://storagehub.vmware.com/t/vmware-vsan/vmware-r-vsan-tm-design-and-sizing-guide/flash-cache­sizing-for-all-flash-configurations-2/