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EMC E20-562 Exam Dumps
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EMC E20-562 Practice Test 1-13
QUESTION 1
What is the purpose of issuing the batch-migrate check-plan command?
A. Determines if there is currently enough back-end bandwidth
B. Determines if the front-end IO rate is below the predetermined threshold
C. Verifies that the target devices have no virtual volumes configured
D. Verifies that the source devices are not in a storage view
Correct Answer: C
QUESTION 2
Which statement applies to a VPLEX device?
A. Application of a RAID topology to one or more extents
B. An extent from a claimed LUN
C. Claimed LUN from an array
D. Storage presented to one or more hosts
Correct Answer: C
QUESTION 3
A storage administrator has been tasked with migrating a Microsoft SQL Server and its native EMC VNX LUNs behind a
VPLEX Local cluster. However, in planning for future application growth, the database administrator wants to be able to
expand the storage volumes.
Based on this information, which geometry should be selected during encapsulation?
A. Stripped MetaLUN
B. 1:1 Mapping
C. RAID-0
D. RAID-C
Correct Answer: B
QUESTION 4
Refer to the exhibit.
A virtual volume created on a distributed device is experiencing performance problems. The virtual volume is in a
storage view in Cluster-1.
What could be the issue?
A. There is storage volume contention on Cluster-2
B. A WAN COM failure has occurred
C. Distributed device I/O is exceeding WAN COM bandwidth
D. Device mobility jobs are moving data across the WAN COM
Correct Answer: C
QUESTION 5
Which protocol does the service laptop use to communicate with and maintain an EMC VPLEX environment?
A. SSH
B. SNMP
C. Telnet
D. UDP
Correct Answer: D
QUESTION 6
What is a consideration for using a VPLEX logging volume?
A. Must be created on each VPLEX cluster before creating a distributed device
B. Automatically provisioned at each VPLEX cluster when the distributed device is created C. A distributed device must be created before a logging volume can be created
D. VIAS can be used to create a logging volume at each cluster
Correct Answer: A
Reference: click here
QUESTION 7
What is the maximum number of virtual volumes that can be placed into a single consistency group?
A. 800
B. 900
C. 1000
D. 1100
Correct Answer: C
QUESTION 8
What is a key VPLEX component that enables an active-active data center?
A. Distributed storage views
B. Distributed virtual volumes
C. Distributed extents
D. Distributed storage volumes
Correct Answer: B
QUESTION 9
What condition would prevent volume expansion?
A. Migration occurring on the volume
B. Volume not belonging to a consistency group
C. Metadata volume being backed up
D. Logging volume in re-synchronization state
Correct Answer: A
Reference: click here
QUESTION 10
At which stage of configuring a virtual volume on VPLEX is the RAID level defined?
A. Claimed volume
B. Device
C. Storage volume
D. Extent
Correct Answer: C
Reference: click here (page 26)
QUESTION 11
What happens to global cache size if a director fails and is removed from the cluster?
A. Suspends
B. Increases
C. Decreases
D. Remains as-is
Correct Answer: D
QUESTION 12
What is the maximum number of synchronous consistency groups supported by VPLEX?
A. 256
B. 512
C. 1024
D. 2048
Correct Answer: D
QUESTION 13
What is a feature of GeoSynchrony 6.0 with respect to service account login to the VPlexcli?
A. Service account requires authentication to the Linux shell VPlexcli requires an RSA token
B. Service account requires no authentication to the Linux shell VPlexcli requires certificate authority
C. Service account requires no authentication to the Linux shell VPlexcli requires authentication through LDAP
D. Service account requires authentication only to the Linux shell VPlexcli does not require an extra authentication step
Correct Answer: B
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