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EMC Dell VPLEX Deploy Achievement Sample Questions (Q27-Q32):

NEW QUESTION # 27
A company has VPLEX Metro protecting two applications without Cluster Witness:
. App1 distributed virtual volumes are added to CG1, which has detach-rule set cluster-1 as winner
. App2 distributed virtual volumes are added to CG2, which has detach-rule set cluster-2 as winner What should be the consequence if cluster-2 fails for an extended period?

A. I/O for CG1 is suspended at cluster -1; I/O is serviced at cluster-2I/O for CG2 is serviced at cluster -1; I/O is suspended at cluster-2
B. I/O for CG1 is serviced at cluster -1; I/O is suspended at cluster-2I/O is serviced for CG2 at cluster -2; I/O is suspended at cluster-1
C. I/O for CG1 is detached at cluster -1; I/O is serviced at cluster-2I/O for CG2 is detached at cluster -2; I/O is serviced at cluster-1
D. I/O for CG1 is suspended at cluster -1; I/O is serviced at cluster-2I/O for CG2 is serviced at cluster -2; I/O is suspended at cluster-1

Answer: A

Explanation:
In a VPLEX Metro environment without a Cluster Witness, consistency groups (CGs) are used to manage distributed virtual volumes with detach rules that determine the behavior during a cluster failure.
* CG1 with Cluster-1 as Winner: For App1, the distributed virtual volumes are added to CG1, which has a detach rule set with cluster-1 as the winner. This means that if cluster-2 fails, I/O for CG1 will continue to be serviced at cluster-1 after it automatically attaches the volumes that were distributed across both clusters1.
* CG2 with Cluster-2 as Winner: For App2, the distributed virtual volumes are added to CG2, which has a detach rule set with cluster-2 as the winner. In the event of a cluster-2 failure, I/O for CG2 will be serviced after the volumes are detached from cluster-2, allowing cluster-1 to take over and service the I/O1.
* Extended Cluster-2 Failure: If cluster-2 fails for an extended period, the VPLEX Metro will follow the detach rules set for each consistency group. CG1 will have its I/O serviced at cluster-1, and CG2 will also have its I/O serviced at cluster-1 after detaching from the failed cluster-21.
* No Cluster Witness: Without a Cluster Witness, the VPLEX Metro relies on the detach rules defined in the consistency groups to determine how to handle I/O in the event of a cluster failure1.
* Operational Continuity: The goal is to maintain operational continuity for both applications. By servicing I/O for both CG1 and CG2 at cluster-1, VPLEX ensures that both applications remain operational despite the failure of cluster-21.
In summary, if cluster-2 fails for an extended period in a VPLEX Metro setup without a Cluster Witness, I/O for CG1 will be serviced at cluster-1, and I/O for CG2 will also be serviced at cluster-1 after detaching from cluster-2, as per the detach rules set for each consistency group.

NEW QUESTION # 28
In preparing a host to access its storage from VPLEX, what is considered a best practice when zoning?

A. Each host should have either one path to an A director or one path to a B director on each fabric, for a minimum of two logical paths.
B. Dual fabrics should be merged into a single fabric to ensure all zones are in a single zoneset.
C. Each host should have at least one path to an A director and at least one path to a B director on each fabric, for a total of four logical paths.
D. Ports on host HBA should be zoned to either an A director or a B director.

Answer: C

NEW QUESTION # 29
VPLEX Metro has been added to an existing HP OpenView network monitoring environment. The VPLEX SNMP agent and other integration information have been added to assist in the implementation. After VPLEX is added to SNMP monitoring, only the remote VPLEX cluster is reporting performance statistics.
What is the cause of this issue?

A. Local VPLEX Witness has a misconfigured SNMP agent.
B. HP OpenView is running SNMP version 2C, which may cause reporting that does not contain the performance statistics.
C. Local VPLEX cluster management server has a misconfigured SNMP agent.
D. TCP Port 443 is blocked at the local site's firewall.

Answer: C

Explanation:
When VPLEX Metro is added to an existing HP OpenView network monitoring environment and only the remote VPLEX cluster is reporting performance statistics, the likely cause is a misconfiguration of the SNMP agent on the local VPLEX cluster management server.
* SNMP Agent Configuration: The SNMP (Simple Network Management Protocol) agent on the VPLEX management server must be correctly configured to communicate with the HP OpenView monitoring system. If the local cluster's SNMP agent is misconfigured, it may not report performance statistics correctly1.
* Troubleshooting Steps: To resolve this issue, the following steps should be taken:
* Verify the SNMP configuration on the local VPLEX cluster management server.
* Check for any discrepancies in the SNMP version, community strings, and allowed hosts between the local and remote clusters.
* Ensure that the SNMP service is running and properly configured to send traps and fetches to the HP OpenView system1.
* Firewall and Network Checks: Although TCP Port 443 is important for secure communications, it is not typically used for SNMP, which usually operates over UDP ports 161 and 162. Therefore, a blockage of TCP Port 443 would not directly affect SNMP reporting1.
* HP OpenView Compatibility: While HP OpenView running SNMP version 2C could potentially cause issues with performance statistic reporting, if the remote cluster is reporting correctly, it suggests that the version of SNMP is not the issue in this case1.
* VPLEX Witness Configuration: The VPLEX Witness is not directly involved in the reporting of performance statistics to HP OpenView, so a misconfiguration of the VPLEX Witness's SNMP agent would not cause this specific issue1.
In summary, the cause of the issue where only the remote VPLEX cluster is reporting performance statistics to HP OpenView is likely due to a misconfigured SNMP agent on the local VPLEX cluster management server.

NEW QUESTION # 30
How much cache is available in a VPLEX VS2 dual engine setup?

A. 144 GB
B. 72 GB
C. 288 GB
D. 128 GB

Answer: C

Explanation:
In a VPLEX VS2 dual engine setup, each engine is fixed at 72GB of cache, with 36GB per director. Since a dual engine setup contains two engines, the total available cache would be:
72 GB (per engine) imes 2 (engines) = 144 GB72 GB (per engine)×2 (engines)=144 GB However, as each engine contains two directors, and each director has 36GB of cache, the total cache available in a dual engine setup would be:
36 GB (per director) imes 4 (directors) = 144 GB36 GB (per director)×4 (directors)=144 GB Therefore, the total cache available in a VPLEX VS2 dual engine setup is 144 GB1.

NEW QUESTION # 31
A database administrator would like to have access to the diagnostic files from the shell, but has no shell access. How can they gain access to the files?

A. Cannot access the file system without service credentials
B. Use access to root directory of the management server
C. Copy the files using SCP
D. Cannot access the file system without admin credentials

Answer: C

Explanation:
For a database administrator who needs access to diagnostic files from the VPLEX system but does not have shell access, the recommended method is to use Secure Copy Protocol (SCP) to copy the files. SCP is a secure file transfer protocol that allows files to be copied over a network.
* Access the Management Server: First, the administrator must access the VPLEX management server for the cluster from which they need to collect the logs1.
* SSH to the Director: Using SSH, the administrator logs in as root to the director from which the logs need to be collected1.
* Navigate to Log Directory: Change the directory to /var/log on the director to access the log files1.
* Create a Tarball of Logs: Use the tar command to create a compressed archive (tarball) of the log files1.
* Copy the Tarball Using SCP: Use SCP to copy the tarball to the management server's /tmp directory.
The administrator will be prompted for the service account password before the file can be transferred1.
* Access the Files: Once the files are on the management server, the database administrator can download them from the /tmp directory using SCP from their workstation1.
This process allows the database administrator to obtain the necessary diagnostic files without having direct shell access to the VPLEX system.

NEW QUESTION # 32
......

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EMC - Newest D-VPX-DY-A-24 - New Dell VPLEX Deploy Achievement Exam Test

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EMC Dell VPLEX Deploy Achievement Sample Questions (Q27-Q32):

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