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EMC E20-542 VMAX3 Solutions and Design Specialist Exam for Technology Architects Exam Practice Test

Demo: 20 questions
Total 136 questions

VMAX3 Solutions and Design Specialist Exam for Technology Architects Questions and Answers

Question 1

You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. The workload profile is as follows:

Total I/Os per second = 30,000

Read block size = 4 KB

Write block size = 4 KB

Writes = 30%

How many OC3 links will provide sufficient bandwidth?

Options:

A.

1

B.

2

C.

4

D.

6

Question 2

What is the default HTTPS port used to connect to Unisphere for VMAX?

Options:

A.

80

B.

443

C.

3324

D.

8443

Question 3

What is a requirement before a port can be disassociated from an FA emulation on a VMAX3?

Options:

A.

Port must not be a member of any Port Group.

B.

Port must not belong to an RDF group.

C.

All ports associated with the FA emulation must be offline.

D.

All ports on the I/O module must be offline.

Question 4

You are in a meeting with a customer to discuss virtual provisioning on VMAX3 arrays. The customer wants information on extent allocation during thin device creation.

How many extent(s) are allocated when a thin device is created?

Options:

A.

0

B.

1

C.

12

D.

42

Question 5

Which database does Unisphere for VMAX 8.0 use for Performance Analyzer?

Options:

A.

PostgreSQL

B.

MySQL

C.

SQL Server

D.

Oracle

Question 6

Which SRDF remote replication licenses are available with VMAX3?

Options:

A.

Remote Replication Suite and SRDF Registered

B.

Remote Protection Suite and Application Protection Suite

C.

Remote Replication Suite and SRDF/Automated Replication

D.

Remote Protection Suite and SRDF Registered

Question 7

A customer has been using a VMAX3 array for the past three months. They now want to add additional capacity to this array. Which files does VMAX Sizer need to process this request?

Options:

A.

IMPL BIN and License XML

B.

BTP and SYMAPIDB BIN

C.

DCF and IMPL BIN

D.

License XML and SYMAPIDB BIN

Question 8

From an application perspective, what should be done prior to performing an SRDF failback operation?

Options:

A.

Stop accessing R2 devices; start accessing R1 devices after the command completes.

B.

Stop accessing R2 devices; start accessing R1 devices before the command completes.

C.

Continue accessing R2 devices; start accessing R1 devices after the command completes.

D.

Continue accessing R2 devices; start accessing R1 devices before the command completes.

Question 9

During a scheduled outage of the primary site (R1), a company is operating their production on their disaster recovery site (R2). After the outage, they need to move production back to the R1 site.

Which SRDF action is required?

Options:

A.

Failback

B.

Restore

C.

Resume

D.

Failover

Question 10

You are in a meeting with a customer discussing virtual provisioning on VMAX3 arrays. The customer wants information on Storage Resource Pool allocation management.

What is the basis for the allocation of new extents to a device?

Options:

A.

Data Pool Ranking and SLO

B.

Data Pool RAID types and SRP capacity

C.

Data Pool Ranking and SRP capacity

D.

Data Pool RAID types and default SLO

Question 11

You have configured Open Replicator between a new VMAX3 array and a VMAX. A host is connected to the VMAX3 array and a control device is configured to pull data from a remote device on the VMAX. You want the host to be able to access data on the control device while the data is being pulled from the remote device.

What will cause writes to the control device to be propagated back to the remote device?

Options:

A.

Donor Update

B.

Copy-On-First Access

C.

Front-end Zero Detection

D.

Background Copy

Question 12

What does the BCSD Write Load Adjustment Factor account for when designing SRDF solutions?

Options:

A.

I/O burstiness

B.

Data compression

C.

I/O Locality of reference

D.

Write folding

Question 13

Which types of authentication are supported by Unisphere for VMAX?

Options:

A.

Local Directory, Windows (local and domain-based), and LDAP

B.

Local Directory, Windows (local and domain-based), and RADIUS

C.

Local Directory, Windows (local and domain-based), and CHAP

D.

Local Directory, Windows (local and domain-based), and Secure Service Credential

Question 14

How does the VMAX3 Platinum Service Level Objective (SLO) differ from the Optimized Service Level Objective?

Options:

A.

Platinum SLO emulates Flash and 15K RPM drive performance and has an expected average response time.

B.

Workload Type can be assigned to Platinum-associated Storage Groups and emulates Flash, 15K RPM, and 7.2K RPM drive performance.

C.

Platinum SLO emulates Flash and 15K RPM drive performance and has a configurable average response time.

D.

No Workload Type can be assigned to Platinum-associated Storage Groups and it places the most active data on higher performing storage.

Question 15

A VMAX3 Storage Group has Host I/O limits set at 10,000 IOPs. The Port Group contains four ports across different directors. The Dynamic Distribution is set to "Always".

What is the maximum IOPs the Storage Group can achieve in the event a switch port being used by one of the director ports fails but the director remains online?

Options:

A.

5,000

B.

7,500

C.

9,000

D.

10,000

Question 16

A storage administrator wants to verify the state of the SLO compliance application data hosted on a VMAX3. Where can the information be found in Unisphere for VMAX?

Options:

A.

Storage Group Dashboard

B.

Storage Resource Pool

C.

Service Level Dashboard

D.

Hosts Dashboard

Question 17

The Storage Group containing the source volumes on a VMAX3 array is managed by the Gold SLO. A TimeFinder SnapVX snapshot of this Storage Group is linked to target volumes. The Storage Group containing the target volumes is managed by the Bronze SLO.

Which SLO will be used to manage the snapshot deltas?

Options:

A.

Optimized

B.

Gold

C.

Bronze

D.

None

Question 18

What is the benefit of the Link Capacity Adjustment Scheme in an SRDF deployment over a SONET circuit?

Options:

A.

Enables dynamic scaling of bandwidth based on requirements

B.

Enables low capacity circuits to be grouped together into a higher capacity link

C.

Allows the replication throughput to scale linearly based on the TCP connections

D.

Allows multiple wavelengths of data to be transmitted over the same circuit

Question 19

The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An application is actively performing read and write I/Os to these devices. Allocation for the SRP reaches 85%.

What will happen to the snapshot?

Options:

A.

Snapshot will fail

B.

Snapshot deltas will be allocated from the Reserved Capacity

C.

Snapshot will persist but new snapshot deltas cannot be created

D.

Snapshot will terminate

Question 20

What is the best practice for adding Flash drives, per engine, on a VMAX3?

Options:

A.

Multiples of 4 RAID 5 (3+1) Flash drives

B.

Multiples of 4 RAID 6 (6+2) Flash drives

C.

Multiples of 8 RAID 5 (3+1) Flash drives

D.

Multiples of 8 RAID 6 (6+2) Flash drives

Demo: 20 questions
Total 136 questions