E20-390 Online Practice Questions and Answers

Where in Unisphere do you assign FAST Cache to LUNs?

A. At the LUN level under a RAID group

B. At the LUN level under a storage pool

C. Under FAST Cache system properties

D. Under the Advanced tab of RAIDGROUP Properties

What is the maximum number of supported ESX hosts that can share a LUN?

A. 8

B. 16

C. 32

D. 64

A file system has a VNX SnapSure schedule enabled for daily snapshots. By using the Microsoft Shadow Copy Client, a user can see previous versions of a certain file up to a specific date in the past, but nothing else after that.

A. Missing snapshots are being used by an application

B. All snapshots have been refreshed

C. No changes have been made to the file system

D. The SavVol has reached a full state

How is LDAP for File configured on VNX Unified systems?

A. Per each Control Station on the VNX

B. Per network subnet

C. Per each Storage Processor

D. Per each VNX system

In a VNX system, which feature manages access to specific management clients?

A. Auditing

B. Public key infrastructure

C. User privileges

D. IP address filtering

What describes the VNX Snapview Snapshot source LUN write process?

A. Host issues write. Old data is copied to the reserve LUN pool. New data is written to the source LUN.

B. Host issues write. New data is written to a new location.

C. Host issues write. Old data is copied to the source LUN. New data is written to the reserve LUN pool.

D. Host issues write. Data is written to the reserve LUN pool.

A customer has an application that uses a lot of capacity but has very low performance requirements. The customer initially configured the LUNs using the Lowest Available Tier option and now wants to configure the FAST VP policy to ensure LUNs allocated to this application always stay on low performance storage.

What do you advise?

A. The policy should be set to No Data Movement.

B. Initially set the policy to Lowest Available Tier, then Auto-Tier.

C. The policy should always be set to Auto-Tier.

D. Initially set the policy to Highest Available Tier, then Auto-Tier.

A new SAN attached host is unable to see the LUNs created for it on a VNX array. When looking at the host initiators to verify connectivity the Storage Group listed for the host is ~management.

Which step was missed when provisioning this host?

A. Adding the host to the Storage Group

B. Adding LUNs to the Storage Group

C. Manually registering the host initiators

D. Setting the correct Failover Mode for host initiators

A VNX file system has auto_extend enabled. If the file system size is greater than the extend_size value, what will happen when the file system reaches its high water mark (HWM)?

A. File system is extended by 5% of its size

B. File system is extended until it is 10% over the HWM

C. File system is extended by 3% of its size

D. File system is extended by its size

A customer has asked you to test the Data Mover failover functionality. Which method is recommended to verify Data Mover failover?

A. Run the server_standby -activate command

B. Remove the primary Data Mover blade from its slot

C. Disconnect all Ethernet cables from the primary Data Mover

D. Run the server_cpu -shutdown command