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  5. VPLEX Specialist Exam for Implementation Engineers Questions and Answers

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Viewing questions 31-40 out of questions
Questions # 31:

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

Options:
A.

Check if the %CPU Busy is above 50%

B.

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

C.

Check the ratio of cache.rhit to cache.miss

D.

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

Expert Solution
Questions # 32:

What information is required to configure ESRS for VPLEX?

Options:
A.

VPLEX model type

Top Level Assembly

Site ID

IP address of the Management Server public port

B.

Top Level Assembly

Site ID

IP address of the Management Server public port

VPLEX Configuration (1, 2 or 4 Engines)

C.

VPLEX model type

Top Level Assembly

Primary customer contact

IP address of the Management Server public port

D.

VPLEX model type

Site ID

IP address of the Management Server public port

Primary Customer contact

Expert Solution
Questions # 33:

Refer to the exhibit.

Question # 33

Which VPLEX configuration is shown?

Options:
A.

VPLEX Metro/GEO dual engine

B.

VPLEX Local quad engine

C.

VPLEX Metro/GEO quad engine

D.

VPLEX Local dual engine

Expert Solution
Questions # 34:

Refer to the exhibit:

Question # 34

Which two modules are used for WAN-COM connectivity?

Options:
A.

C and G

B.

A and E

C.

D and E

D.

C and F

Expert Solution
Questions # 35:

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

Options:
A.

Yes, to preserve data integrity

B.

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

C.

No, because VPLEX software can be upgraded non-disruptively

D.

No, because the upgrading can be undone

Expert Solution
Questions # 36:

Refer to the exhibit:

Question # 36

Which two modules are used for back-end connectivity?

Options:
A.

A and E

B.

D and E

C.

B and F

D.

C and F

Expert Solution
Questions # 37:

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

Options:
A.

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

B.

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

C.

The device is striped across mismatched array types.

D.

The device is striped across RAID-S devices.

Expert Solution
Questions # 38:

What is a group of VPLEX directors that participate in the cache coherence protocol for a virtual volume?

Options:
A.

Share Group

B.

Consistency Group

C.

Storage View

D.

Administrative Domain

Expert Solution
Questions # 39:

A customer wants to collect performance data for specific virtual-volumes and has created the performance monitor.

What step needs to be performed to enable data capture?

Options:
A.

The customer needs to utilize the "-capture" flag when creating the monitor

B.

Virtual-volumes cannot have any performance data collected against them

C.

The customer needs to create an associated sink for data collection

D.

The customer needs to enable performance collection through the VPLEX GUI

Expert Solution
Questions # 40:

A customer has purchased a dual engine VPLEX Metro cluster. During installation, there are not enough free SAN ports to connect all WAN-COM ports to the SAN. What is the recommended approach?

Options:
A.

The customer must provide additional SAN ports or acquire additional SAN ports to connect all WAN-COM ports of both VPLEX engines to the SAN.

B.

The customer must connect the WAN-COM ports of the first engine only and disable the second engine from the VPLEX CLI.

C.

It is sufficient to connect the WAN-COM ports of either engine 1 or 2 because redundancy is provided by leveraging two separate SAN fabrics.

D.

The customer must connect the WAN-COM ports of the first engine only and disable the second engine from the Unisphere for VPLEX GUI.

Expert Solution
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