Master the EMC E20-260 Exam: Essential Study Tips and Strategies

Questions 41

After an expansion of a RAID-0 device in VPLEX, the customer notices a slight degradation of performance. What could cause this?

Options:

After the expansion operation is complete, the original mapped device has been converted into type RAID-C.

After the expansion operation is complete, the original mapped device has been converted into type RAID-S.

The device is striped across mismatched array types.

The device is striped across RAID-S devices.

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Questions 42

IT security just implemented new security policies at a customer site. When VPLEX Management Server sends SYR reports to an ESRS gateway nothing is received at the gateway.

What action did IT security take that would cause this?

Options:

Block TCP port 443 and 22

Block TCP port 80 and 21

Block TCP port 9090 and 5910

Block TCP port 21 and 445

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Questions 43

Do virtual volumes need to be taken off-line prior to upgrading VPLEX software, and why or why not?

Options:

Yes, to preserve data integrity

Yes, because the host-based multi-pathing software provides direct access during the upgrade

No, because VPLEX software can be upgraded non-disruptively

No, because the upgrading can be undone

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Questions 44

Which is the best way to identify the root cause of long read latencies using monitors?

Options:

Check if the %CPU Busy is above 50%

Check to see if all volumes are in at least 1 Consistency Group

Check the ratio of cache.rhit to cache.miss

Check the difference between fe-director.read-lat and storage-volume.read-latency

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Questions 45

When configuring a RAID-1 logging volume, what flags must be used in the command line?

Options:

-d -n -g -e

-n -d –e

-n -g -e

-d -g -e

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Questions 46

According to EMC best practices, how many metadata volumes for a VPLEX Metro configuration are required on each cluster?

Options:

4 Metadata volumes and 4 Metadata Backup volumes

2 Metadata volumes and 1 Metadata Backup volume

2 Metadata volumes and 2 Metadata Backup volumes

4 Metadata Volumes and no Metadata Backup volumes

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Questions 47

During an installation, the physical equipment inspection reveals an ESX host used for VPLEX Witness is located in the same rack as VPLEX cluster 1 Engine.

What needs to be done?

Options:

VPLEX Witness server must be in a separate cabinet in the same data center.

The VPLEX Witness server must be placed in a separate failure domain.

Decrease network delay to reduce effects of equipment proximity.

The ESX host must be placed in a separate cabinet due to cooling requirements.

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Questions 48

Refer to the exhibit.

E20-260 Question 48

During a short power disruption to cluster 2, director-2-1-A failed. Power was restored after 5 minutes. In examining the output of the vault status command, you note that cluster-2's status reads "Cluster is not vaulting/unvaulting".

Why did this message appear?