E20-807 Online Practice Questions and Answers

What is the best practice for FA utilization in a VMAX3 array?

A. 50% busy with two engines

B. 50% busy with more than two engines

C. 50% busy with one engine

D. 50% busy with two or more engines

Which RDF mode is active during the Non-Disruptive Migration Cutover Ready state?

A. Asynchronous

B. Pass-through

C. Adaptive Copy

D. Synchronous

A VMAX3 array has been configured to use TimeFinder SnapVX. A snapshot is taken of a LUN that currently resides on a 10k drive. Which mechanism will SnapVX use when there is a write to a linked target volume?

A. COFW

B. ROW

C. ACORW

D. COW

An administrator implemented SYMACLs on a VMAX3 using hardware-based Access IDs. The administrator is not able to run SYMCLI commands against the volumes belonging to a host. The volumes were originally provisioned using the host in which the host in which the administrator experienced issues.

What is a possible reason for this issue?

A. SYMAPI options file was manually modified with the wrong host ID

B. symacl –unique –passphrase was run using a different passphrase

C. Host is not in the eMgmt Access Group

D. Host network interface card was replaced

Which role does the Unisphere for VMAX initial setup user have after the creation of a new user with the "Admin" role?

A. SecurityAdmin

B. None

C. Admin

D. Auditor

Refer to the Exhibit.

Which port assignments for external array connectivity satisfy high availability and best practices for a dual engine VMAX3 configuration with FAST.X?

A. Director 1 port 4, Director 1 port 5 Director 4 port 4, Director 4 port 5

B. Director 1 port 4, Director 1 port 9 Director 1 port 24, Director 1 port 31

C. Director 1 port 4, Director 1 port 9 Director 2 port 4, Director 2 port 9

D. Director 1 port 4, Director 2 port 4 Director 1 port 8, Director 4 port 24

A VMAX3 array needs additional capacity added. The array is providing acceptable performance and the administrator wants to ensure performance is maintained as new drives are added.

A VMAX3 array needs additional capacity added to maintain performance?

A. Add storage to all tiers maintaining the existing ratio

B. Add storage to a new internal SRP

C. Add storage to the most over utilized tier

D. Add storage to a new external SRP

A VDI deployment is planned for an environment that consists of VMAX3 and XtremIO. The data will have a high degree of deduplication and will require QoS and VVOL support. How can the existing infrastructure be leverage while minimizing increased storage capacity?

A. Use XtremIO for the new deployment

B. Use FAST.X with XtremIO for the new deployment

C. Add full capacity required for VMAX3

D. Add half the capacity required for the VMAX and use compression

Refer to the Exhibit.

Cascaded SRDF has been deployed on VMAX3 has been deployed on VMAX3 arrays. The SRDF mode has been set to Asynchronous between Sites A and B.

Which SRDF mode is permitted between Sites B and C?

A. Adaptive Copy Write Pending

B. Synchronous

C. Adaptive Copy Disk

D. Asynchronous

Which Dell EMC VMAX3 point-in-time replication technology allows snapshots to be created without requiring a target volume?

A. TimeFinder SnapVX

B. ProtectPoint

C. SRDF/Asynchronous

D. Open Replicator

When utilizing storage on a VMAX3, what should be created for each application/server to assist in proper performance analysis over time?

A. Gaussian graphs

B. Trendline graphs

C. Stacked graphs

D. Baseline graphs

What is in accurate statement about Unisphere for VMAX and Solutions Enabler permission management?

A. Authorization checking is disabled by default for Unisphere and Solutions Enabler and must be enabled before configuring permissions

B. Solutions Enabler can assign up to four roles per user and Unisphere can only assign up to two roles per user

C. Unisphere and Solutions Enabler permission information is maintained in separate symauth databases

D. Unisphere has a more explicit authentication mechanism for users while Solutions Enabler uses the operating system user credentials

In an SRDF/Metro environment, what is a requirement for an Array Witness?

A. Witness RDF between the source and the target

B. Witness RDF group on the witness array containing the source and the target SRDF/Metro devices

C. One RDF group on the witness array to both the source and the target

D. Two RDF groups on the witness array; one to the source and one to the target

On a VMAX3 array, for which type of workload does FlashBoost help in optimizing performance?

A. Sequential Reads

B. Sequential Writes

C. Random Writes

D. Random Reads

Which daemon must be running on the Unisphere for VMAX server to collect performance data?

A. storstpd

B. storapid

C. storgnsd

D. storsrvd