[Oct-2021] Pass EMC E20-393 Exam in First Attempt Guaranteed!
Full E20-393 Practice Test and 340 unique questions with explanations waiting just for you, get it now!
NEW QUESTION 126
What is an advantage for selecting Centralized ESRS over Integrated ESRS?
- A. CHAP security is not required between Unity systems
- B. WAN compression isnot required to Unity systems
- C. External virtual machine is not required
- D. Internet connectivity is not required for every Unity system
Answer: C
NEW QUESTION 127
Which Unity feature provides a high bandwidth connection for large file transfers, enables proactive Service Request generation and usage license reporting, and operates on a 24x7 basis?
- A. EMC Service Center
- B. Software Licensing Central
- C. EMC Secure Remote Services
- D. Unisphere Central
Answer: C
NEW QUESTION 128
On which systems is Quality of Service available?
- A. All Flash Unity systems only
- B. Physical Unity systems only
- C. UnityVSA systems only
- D. Physical Unity and UnityVSA systems
Answer: D
Explanation:
UnitVSA features Host I/O limits, also known as Quality of service.
The EMC [Physical] Unity array comes with a pack of new hardware and software features focusing on the true unification:
* Support for setting up Host I/O limits, also known as QOS, providing a more predictable performance for the workloads by putting limits on I/O throughputs and bandwidth
* DPE reduced from a 7U footprint to an innovative 2U footprint
* 12 GB SAS back-end for the Unity DAEs; EMC VNX/VNXe supported only 6 GB SAS backend
* Completely redesigned user interface based on HTML5
References:
http://www.presidio.com/blog/technical-summary-emc-unification-unity
NEW QUESTION 129
A system administrator has configured a system using the Initial Configuration wizard. After completing the wizard, the administrator discovers that an incorrect IP address has been assigned to the Unity system.
How can the IP address be changed?
- A. In the Unisphere Settings menu
- B. The IP address can only be changed using the UEMCLI
- C. Through the Service interface using the ifconfig command
- D. The IP address cannot be changed once it has been configured
Answer: B
Explanation:
Explanation/Reference:
The svc_initial_config UEMCLI command sets up initial system configuration. It configures a management IP address when the Connection Utility (CU) is not available on the network. If an address is set, this command can also change the management IPv4 and IPv6 configuration mode. It attempts to configure the system with the given friendly name and/or network parameters.
Note: The Unisphere CLI (UEMCLI) is a tool that provides us with the CLI access to perform the same actions as one would on the Unisphere web interface.
References: https://www.emc.com/collateral/TechnicalDocument/docu69328.pdf (page 60)
NEW QUESTION 130
How long will a Copy Back operation lake when a hot spare is invoked?
- A. Copy Back time depends on the RAID type
- B. pro-Active hot spare does not use a Copy Back operation
- C. Copy Back time depends on the disk type
- D. Copy Back time depends on the disk capacity
Answer: A
NEW QUESTION 131
What is used by lite Local LUN Move data mobility feature?
- A. Common base Snapshots
- B. Transparent Data Transfer
- C. Inband Migration Tool
- D. SANCopy push
Answer: B
NEW QUESTION 132
How is a Local LUN Move configured?
- A. First select the Pool to move the LUN into, then choose the Move operation, and finally select a LUN.
- B. First select the LUN, then select the Pool to move the LUN into, and finally choose the Move operation.
- C. First select a LUN, then choose the Move operation, and finally select the Pool to move the LUN into
- D. First choose the Move operation, then select a LUN, and finally select the Pool to move the LUN into.
Answer: C
Explanation:
References:
https://www.dellemc.com/sr-me/documentation/unity-family/unity-p-config-luns/02-configuring-lun-move.htm
NEW QUESTION 133
What is the maximum number of Thin Clones that can be created from a Base LUN on a Dell EMC Unity
array?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 134
A system administrator wants to grant privileges to manage storage resources and host configurations for some users. However, the administrator wants to ensure users have no privileges to manage user accounts, change network settings and NAS servers, or perform software upgrades. Which user role should be associated with the user accounts to be created?
- A. Administrator
- B. Operator
- C. Storage Administrator
- D. Service
Answer: D
NEW QUESTION 135
Which feature is supported on a UnityVSA operating environment?
- A. Quick Start Pool Provisioning
- B. Asynchronous Replication
- C. MCC Write Caching
- D. Data at Rest Encryption
Answer: B
Explanation:
Asynchronous Unified Replication is available natively on UnityVSA. This allows file and block resources to be replicated between UnityVSA systems, between UnityVSA and physical Unity systems, and also locally back to the same UnityVSA system
NEW QUESTION 136
When deploying virtual disks for a UnityVSA system, what is an EMC recommended Disk Provision Policy?
- A. Thin Provision
- B. Thick Provision Eager Zeroed
- C. Thick Provision Lazy Zeroed
- D. Thick Provision
Answer: B
Explanation:
Explanation/Reference:
EMC recommends the following settings for all virtual disks:
* Disk Provisioning: Thick Provision Eager Zeroed.
* Location: A different datastore than the VM.
NEW QUESTION 137
What are characteristics of the LUN Snapshot Copy operation?
- A. Parent cannot be a snapshot copyCan only copy a detached snapshotHas an independent Retention Policy from the parent
- B. Parent can be a snapshot copyCan copy an attached or detached snapshotInherits the parent Snapshot Retention Policy
- C. Parent can be a snapshot copyCan only copy a detached snapshotHas an independent Retention Policy from the parent
- D. Parent cannot be a snapshot copyCan copy an attached or detached snapshotInherits the parent Snapshot Retention Policy
Answer: D
Explanation:
Explanation
The Snapshot Copy operation will make a copy of an existing snapshot that is either attached or detached from a host. The copy will capture the existing data state of the snapshot it copies. In this Copy example, a copy of an existing 4 o clock snapshot is being made. The copy inherits the parent snapshot data state of 4 o clock and its retention policy
NEW QUESTION 138
Which UnityVSA configuration can be performed using the Unisphere Initial Configuration wizard?
- A. Register host iSCSI initiators
- B. Add iSCSI network interfaces
- C. Register host HBA WWNs
- D. Configure Link Aggregation
Answer: B
Explanation:
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/
NEW QUESTION 139
A Unity 400 system has Data at Rest Encryption licensed and enabled. Which operation(s) must be performed from the Unisphere Settings window to ensure the system is still operational after SP replacements?
- A. Download Audit Log and Checksum
- B. Download Audit Log
- C. Download Checksum
- D. Backup Keystore File
Answer: D
Explanation:
Explanation/Reference:
The keystore is tied to the storage processors, so care must be taken when performing service operations in order to preserve the encryption keys. In the event that the chassis and both storage processors need to be replaced, both storage processors should not be replaced at the same time. Instead, the chassis replacement should be followed while retaining one SP until the array is back online before replacing the second SP. In the case that storage processors have already been replaced at the same time and the keystore was lost, the keystore may be restored from an external backup.
References: http://www.emc.com/collateral/white-papers/h15090-emc-unity-data-at-rest-encryption.pdf (page 10)
NEW QUESTION 140
The embedded FC ports allow connection at what speeds?
- A. 10 Gb/s and 16 Gb/s
- B. 4Gb/s, 8 Gb/s, and 16 Gb/s
- C. 8 Gb/s and 16 Gb/s only
- D. 1 Gb/s and 10 Gb/s
Answer: B
Explanation:
Explanation/Reference: https://www.emc.com/collateral/TechnicalDocument/docu69346.pdf (7)
NEW QUESTION 141
The LUN Snapshot Attach to Host operation is being performed with Read/Write Access selected. By default,
what does the Dell EMC Unity system do before beginning the attach process?
- A. Detaches the host from the Snapshot of any other LUN
- B. Creates a Snapshot of the LUN
- C. Detaches existing attached hosts from the LUN Snapshot tree
- D. Creates a copy of the Snapshot
Answer: D
NEW QUESTION 142
A storage administrator is tasked with creating a DR solution for block and file storage resources. The
company has multiple regional and international sites containing a mix of physical and virtual Dell EMC
Unity systems.
What are considerations for the storage administrator in creating the DR solution?
- A. Synchronous remote replication should be restricted to within 100 km between sites to keep latency
below msBlock storage resources can be replicated synchronously and asynchronously - B. Asynchronous replication ensures zero data loss the remote replica in disaster conditionsBlock storage
resources can be replicated synchronously and asynchronously - C. Asynchronous replication over long-distance does not impact latencyAsynchronous replication ensures
zero data loss to the remote replica in disaster conditions - D. Synchronous remote replication should be restricted to within 100 km between sites to keep latency
below 10 msFile and block storage resources can be replicated synchronously and asynchronously
Answer: C
NEW QUESTION 143
What is the maximum number of LUNs in a Consistency Group?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 144
In order to replace a faulty component a service provider has placed one of the Unity Storage Processors into Service mode. Once the component is replaced, how is the Storage Processor brought back into Normal mode?
- A. Reboot the Storage Processor
- B. Restart the Management software
- C. Reboot the storage system
- D. Exit the Service Mode task
Answer: B
NEW QUESTION 145
An administrator's Unity system is configured with both a Fibre Channel CNA and a Fibre Channel I/O module.
Which Fibre Channel port on each SP must be used for native synchronous replication?
- A. I/O module FC port 2
- B. CNA FC port 4
- C. I/O module FC port 5
- D. CNA FC port 5
Answer: B
Explanation:
Explanation/Reference:
Only one FC port can be configured and used for synchronous replication. Once an FC port is assigned, it will continue to act as the synchronous replication port and can never be changed. To determine the FC port used for synchronous replication, in the CLI console, run the command /remote/sys show -detail. Port information, similar to the following example, will appear in the output:
Synchronous FC ports = spb_fc4, spa_fc4
References: https://www.dellemc.com/en-us/documentation/unity-family/unity-p-replication-config/03-unity-rep- br-considerations-syncrep.htm
NEW QUESTION 146
Which severity level alerts for a fault condition that has occurred, has minor impact on the system, and does not need to be fixed immediately?
- A. Warning
- B. Error
- C. Notice
- D. Critical
Answer: A
Explanation:
Event Severity levels are: critical, error, warning, info.
NEW QUESTION 147
When deploying virtual disks for a UnityVSA system, what is an EMC recommended Disk Provision Policy?
- A. Thin Provision
- B. Thick Provision Eager Zeroed
- C. Thick Provision Lazy Zeroed
- D. Thick Provision
Answer: B
Explanation:
Explanation
EMC recommends the following settings for all virtual disks:
Disk Provisioning: Thick Provision Eager Zeroed.
Location: A different datastore than the VM.
NEW QUESTION 148
A system administrator is browsing their local management station for a Unity license file. Which file extension is used for Unity license files?
- A. .lin
- B. .cer
- C. .lic
- D. .rsa
Answer: C
Explanation:
You need to obtain the license file (.lic) from the EMC license management web site.
References: https://www.emc.com/techpubs/vipr/license_vipr-1.htm
NEW QUESTION 149
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