E20-545 Exam Questions

Refer to the exhibits. Exhibit A Exhibit B Exhibit C Exhibit D Which SAN connectivity solution uses the EMC best practice for port group oversubscription on a Cisco 24-port module?

A customer needs to give a host 300 GB of disk space to improve performance. The VNX to be used has three RAID groups available. - RAID group 1 is RAID 5 (4+1) with 240 GB free - R...

You are examining NAR files from a VNX Block system and notice that the I/O has no write burst and overall is very low. The low and high watermarks are currently set at 40/60. What...

A customer wants to create a file system on a metavolume. What is the smallest metavolume that can be used?

A customer wants advice on how to provision storage for a performance-intensive OLTP application. It has a 3:1 R/W ratio and a maximum 8 KB block size. What advice do you give them...

In a dual Control Station configuration, how do Control Stations communicate with each other?

What condition receives the highest order criteria selection during a proactive sparing event?

A systems administrator wants to configure Data Mover networks for performance. Only one network switch is available. At least three physical ports on the Data Mover can be used fo...

What is the best fit workload recommendations when using Flash drives in a VNX File environment?

Which VNX feature lets you dynamically expand the capacity of a single LUN (base LUN) into a larger unit?

What is the name of the process that writes original data from the source LUN to the reserved LUN pool when using SnapView snapshots?

In order to boot a VNX, which connection must be enabled?

During the design phase, an administrator asks you which type of automatic iSCSI device discovery is supported by Celerra. What is your response?

A company has decided to use CAVA as their antivirus solution. Which protocol does CAVA use to support antivirus protection in a Celerra environment?

Which protocol enables the customer to access the Control Station over IP?

A customer wants to assign different management roles based on groups in an LDAP database. How are user rights established?

Which two options can be used to manage VNX for File using the CLI?

Which two options can be used to manage VNX for File using the CLI?

When configuring auditing features for a VNX, what does the /sbin/ausearch command do?

How often are auditing configuration files and the current audit log file backed up for each active Control Station?

A customer is concerned about maintaining the appropriate level of redundancy. The customer asks you to explain how VNX for File handles notification of system conditions and SNMP...

You are reviewing log files for a customer's application using Analyzer, and note the followinG. - NFS write size is 8 KiB LUN - Write size is 8 KiB - Disk write size is 32 KiB You...

Your customer is designing a VNX file system using CIFS quotas with a supported third-party application. What software option is required to support this implementation?

A Storage Administrator wants to use all available bandwidth to connect a VMware ESXi host to a VNX. They decide to use two identical CNAs as well as two NICs. They do this so they...

Which RAID Group settings are appropriate for workloads consisting of predominantly large-block random read I/O profiles, such as data warehousing?

When creating a RAID 6 RAID Group, what is the maximum number of disks that can be incorporated?

When creating a RAID 5 RAID Group from SAS disks, EMC best practice recommends selecting drives from the same bus. Why?

A Storage Administrator wants to create a striped 4 TB metaLUN to present to an application server. They plan to use a base LUN size of 1.4 TB made from a RAID 5 (4+1) protected RA...

A customer reported degraded performance with several of the applications that run on a VNX. After reviewing the performance data on the array, you find that all the performance is...

A customer has a heterogeneous FAST VP Pool with 2.4 TB available space. The pool contains a mix of thick LUNs and thin LUNs. The customer attempts to create a 2.4 TB thick LUN, bu...

A FAST VP Pool is configured with 1,000 GB of Flash, 5,000 GB of SAS, and 25,000 GB of NL- SAS drives. Four thick LUNs of 2,000 GB each are created at 30 minute intervals with defa...

A customer is running out of space and wants to order more drives to add to their existing single Pool environment. The current pool is a mix of 10k SAS and 7.2k NL-SAS drives. The...

A Storage Administrator tries to expand the size of a thin pool LUN in a pool that is oversubscribed by 70%. The operation fails. What could be causing this issue?

Which location is used to optimize cached ACL database lookups?

Where, in Unisphere, can a Storage Administrator see a host that has not yet been connected to Storage Group?

A Storage Administrator wants to migrate a thin LUN to another pool, but accidently creates a slightly larger thin LUN to be the target for the migration. How much space will be us...

A Storage Administrator wants to migrate a thick LUN to another pool, but accidently creates a slightly larger thick LUN to be the target for the migration. How much space will be...

A newly created 500 GB thick LUN with 100 GB used capacity needs to be migrated to a thin LUN. What is the result of the migration?

Which statements describe FAST-VP behavior?

Which statements describe FAST-VP behavior?

A customer is experiencing rapid growth in their storage environment and is struggling to respond quickly to new capacity requests. The storage team is spending most of their time...

An administrator installs FAST Cache enabler on a VNX system. When the administrator opens the Properties page of an existing Classic LUN, FAST Cache is not enabled for the LUN. Wh...

What is a characteristic of FAST Cache when it is in a faulted state?

How does FAST Cache keep track of incoming writes?

Which application workloads benefit most from FAST Cache?

How does FAST Cache benefit application workloads?

How can Access Logix best be described?

What are supported limits for Access Logix?

Your customer plans to use iSCSI connectivity for their new ESXi server. They want to enable CHAP so they ask you which CHAP methods can be used with VNX arrays. What should be you...

A customer plans to connect a new Windows 2012 host to a new VNX array. The customer's application requires LUNs that are aligned at 1024 blocks. What should you advise?