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Dell DES-1721 Exam Practice Questions (P. 2)

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Question #6
Which operating system runs the Dell Storage Manager (DSM) as a virtual appliance?
  1. A
    CentOS 7
  2. B
    Windows Server 2012 R2
  3. C
    VMware
  4. D
    Windows Server 2010 R2

Correct Answer:
C
Reference:
https://www.dell.com/support/manuals/pk/en/pkbsd1/storage-sc9000/dsm-2016-ig/dell-storage-manager-virtual-appliance-requirements?guid=guid- effab9c6-7f09-43a4-a836-f305dbc24253&lang=en-us

Question #7
Which best practices should be followed when using iSCSI to connect SC Series arrays and hosts for switches that incorrectly negotiate speed and duplex?
  1. A
    Use a separate supernet or switches for iSCSI traffic Gigabit full duplex hard set for all iSCSI ports Ensure switches used for iSCSI are of a blocking design
  2. B
    Use a separate VLAN or switches for iSCSI traffic Auto-negotiate for all switches Ensure switches used for iSCSI are of a non-blocking design
  3. C
    Use a separate VLAN or switches for iSCSI traffic Gigabit full duplex hard set for all iSCSI ports Ensure switches used for iSCSI are of a non-blocking design
  4. D
    Use a separate subnet or switches for iSCSI traffic Auto-negotiate for all switches Ensure switches used for iSCSI are of a blocking design

Correct Answer:
C
Reference:
https://www.vcdx200.com/2014/09/iscsi-and-ethernet.html

Question #8
DRAG DROP -
What is the correct system hierarchy of SC Series array storage virtualization?
Select and Place:


Correct Answer:

Question #9
Assume a storage administrator is using the recommended storage profile. What describes the distribution of volume data residing in an SC series storage array that has 15K and 7K as the back-end?
  1. A
    New and frequently accessed replay data in Tier 1 RAID 5 Aged replay data and inaccessible data in Tier 3 RAID 6
  2. B
    New data in Tier 1 RAID 10 Frequently accessed replay data in Tier 1 RAID 5 Aged replay data and inaccessible data in Tier 3 RAID 6
  3. C
    New data in Tier 1 RAID 10 Frequently accessed replay data in Tier 2 RAID 5 Aged replay data and inaccessible data in Tier 3 RAID 6
  4. D
    New and frequently accessed replay data in Tier 1 RAID 10 Aged replay data and inaccessible data in Tier 3 RAID 6

Correct Answer:
B

Question #10
A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however, nothing was found. The I/O graphs do not show any anomaly and the replication links are not saturated.
What is the possible reason for this behavior?
  1. A
    Switches used for replication are restarting
  2. B
    QoS Bandwidth Limit is enabled in the QoS node
  3. C
    Data Progression is consuming all disk performance
  4. D
    Automatic report creation is impacting replication

Correct Answer:
B

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