EMC EMC Certifications E20-393 Questions & Answers

• Question 241:

  What is the minimum memory requirement for a host running VMware ESXi 6.0 to support the deployment of a UnityVSA system?

  A. 8 GB

  B. 12 GB

  C. 16 GB

  D. 18 GB

  Correct Answer: B

  A minimum of 12 GB RAM per UnityVSA VM is recommended.

  References: https://www.emc.com/collateral/TechnicalDocument/docu69316.pdf (page 2)

• Question 242:

  A storage administrator wants to create a series of daily snapshots for an existing critical LUN. How can the snapshots be created?

  A. Snapshot schedules can only be configured within the LUN Creation wizard

  B. From the Pool Properties page, configure the Snapshot schedule

  C. Only manually taken snapshots are supported on existing LUNs

  D. From the LUN Properties page, configure the Snapshot schedule

  Correct Answer: B

  In addition to being created ahead of time on the Snapshot Schedules page, new snapshots schedules may also be created during the process of creating a new storage resource from within the creation wizard as an alternative to selecting an existing schedule.

  

  Incorrect Answers:

  C: In addition to being taken manually, snapshots can also be scheduled to be taken automatically at specific times or frequencies.

• Question 243:

  How long before a license expires will UnityVSA send the first alert warning?

  A. 3 days

  B. 7 days

  C. 15 days

  D. 1 month

  Correct Answer: D

  As a reminder, UnityVSA displays several alerts in Unisphere prior to the license expiration date. The table below shows when alerts are generated leading up to the expiration date.

  

• Question 244:

  A system administrator wants to configure asynchronous replication on their Unity system. What is required before creating a replication session?

  A. A Fibre Channel connection configured between the remote systems. A configured replication connection between the remote systems.

  B. A Sync Replication Management Port configured on each system. A Fibre Channel connection configured between the remote systems. A configured replication connection between the remote systems.

  C. An IP-based replication interface on the same network as the destination system's replication interface. A configured replication connection between the remote systems.

  D. A Sync Replication Management Port configured on each system. An IP-based replication interface on the same network as the destination system's interface. A configured replication connection between the remote systems.

  Correct Answer: D

  Asynchronous remote replication requires a replication interface be created on each SP on the system.

  For asynchronous replication, replication is performed over Ethernet interfaces configured on the system. On EMC Unity physical systems, the onboard 10GbE BaseT ports, CNA ports with Ethernet personality, or Ethernet ports located on I/ O modules can be used for replication. In UnityVSA systems, any I/O port can be used for asynchronous replication.

• Question 245:

  Which UnityVSA storage resource can be configured with Host I/O limits?

  A. NAS Server

  B. Pool

  C. File System

  D. LUN

  Correct Answer: D

  Host I/O limits is a feature which allows the user to control the amount of throughput and bandwidth consumed by block resources. This feature can be applied to LUNs, VMFS datastores, or attached snapshots.

• Question 246:

  Which option can be enabled in the Advanced tab of the SMB Share Properties window?

  A. Shared VHDX

  B. Controller-Based Encryption

  C. SMB Direct

  D. Protocol Encryption

  Correct Answer: D

  

• Question 247:

  Which UnityVSA configuration can be performed using the Unisphere Initial Configuration wizard?

  A. Register host iSCSI initiators

  B. Configure Link Aggregation

  C. Register host HBA WWNs

  D. Add iSCSI network interfaces

  Correct Answer: D

  The Unisphere Initial Configuration wizard walks through a complete configuration of the UnityVSA, including changing passwords, licensing, network setup (DNS, NTP), creating pools, e-mail server, support credentials, your customer information, ESRS, iSCSI and NAS interfaces.

  References: http://blog.mdschneider.me/unityvsa-part-3/

• Question 248:

  A system administrator receives a warning that their DPE I/O Module has a fault. In this situation, which type of replacement is required?

  A. Hot-pluggable CRU

  B. Non-Hot-pluggable FRU

  C. Hot-pluggable FRU

  D. Non-Hot-pluggable CRU

  Correct Answer: C

  Your storage system is designed to be powered on continuously. Most components are hot swappable; that is, you can replace or install these components while the storage system is running.

• Question 249:

  In UnityVSA, what is the maximum storage capacity offered by the VVOLs license?

  A. 4TB

  B. 10TB

  C. 25TB

  D. 50TB

  Correct Answer: D

  UnityVSA maximum Usable Capacity is4 TB (Community Edition); 10 TB; 25 TB; and 50 TB licenses available.

  References: https://store.emc.com/se/Product-Family/EMC-Unity-Products/EMC-Unity-VSA/p/EMC-Unity-Virtual-Storage-Appliance

• Question 250:

  What is an advantage for selecting Centralized ESRS over Integrated ESRS?

  A. External virtual machine is not required

  B. WAN compression is not required to Unity systems

  C. CHAP security is not required between Unity systems

  D. Internet connectivity is not required for every Unity system

  Correct Answer: D

  The following requirements are related to the Integrated ESRS implementation only:

  If your ESRS implementation will include a proxy server to connect to the Internet, you must indicate this when you configure the ESRS feature.

  If your ESRS implementation will include a Policy Manager for more control over remote access to your storage system, you must indicate this when you configure the ESRS feature.

  If your ESRS implementation will include a proxy server for your storage system to connect to a Policy Manager, you must indicate this when you configure the ESRS feature

  References: https://www.emc.com/collateral/TechnicalDocument/docu69327.pdf (page 12)