E20-393 Free Practice Test

What is a consideration for IP Packet Reflect running on a NAS server?

1. A. Communications initiated by Unity do not require route table lookups.
2. B. SP must be rebooted after IP Packet Reflect is disabled.
3. C. SP Must be rebooted after IP Packet Reflect is enabled.
4. D. Reply packets are sent via the same interface as the request packets.

Correct Answer: A
References: https://www.emc.com/dam/uwaem/documentation/unity-p-configure-smb-file-sharing.pdf (53)

A High Endurance SSD is limited to how many writes per day?

1. A. 1
2. B. 10
3. C. 25
4. D. 30

Correct Answer: B

Observing the SPE Fault LED during initial power up, what colors and time duration does the SPE use to indicate that it is ready for initialization?

1. A. Amber for 1 second, then blue for 3 seconds
2. B. Blue for 1 second, then green for 3 seconds
3. C. Amber for 1 second, then green for 2 seconds
4. D. Amber for 3 seconds, then blue for 1 second

Correct Answer: D

Where do the D@RE encryption/decryption functions occur in the Unity storage system?

1. A. Host I/O Modules
2. B. Storage Processor Cache
3. C. SAS I/O Module
4. D. Self-encrypting drives

Correct Answer: C
Upon installation and activation of the feature, the following keys are generated by
RSA BSAFE and persisted to the Lockbox:
A new KEK is generated each time the array boots. The KEK is wrapped with the KWK and passed to the SAS controller during the system boot process. Using the persisted KWK, the SAS controller can decrypt the KEK.

A system administrator experienced a power failure in their environment. To which device will cache de-stage?

1. A. M.2 SSD on each Storage Processor
2. B. First four disks in the Disk Processor Enclosure
3. C. Cache does not need to de-stage as it is now non-volatile
4. D. Backup Battery Unit will keep the data alive in cache

Correct Answer: A