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2V0-621D Exam Questions - Online Test


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Q1. When troubleshooting a performance related issue, an administrator sees the following warning message on an ESXi Console:

Significant imbalance between NUMA nodes detected. Performance may be impacted. Which action should the administrator take to correct this problem?

A. Ensure that the RAM modules are evenly balanced between processor sockets in the physical server.

B. Ensure that all memory banks associated with CPU Socket 0 in the physical server are completely filled.

C. Ensure that the physical server has the maximum amount of RAM modules that it can support.

D. Ensure that all RAM modules in the host are Error-correcting code (ECC) modules.

Answer: A

Q2. An administrator suspects that the MTU value for a vSphere Standard Switch is

misconfigured.

Which two commands can determine the value? (Choose two.)

A. esxcfg-vswitch -l

B. esxcli network vswitch standard list

C. esxcfg-vss -l

D. esxcli network standard vswitch list

Answer: A,B

Q3. An administrator is troubleshooting a performance problem with a virtual machine (VM). The VM and ESXi host configuration is as follows:

✑ The application which runs within the virtual machine is highly sensitive to memory latency, but has low processor utilization.

✑ The virtual machine has 6 vCPUs.

✑ The ESXi host CPU topology has 2 Physical CPU Sockets, each with 8 Logical CPUs.

✑ The ESXi host CPU has Hyper Threading enabled.

The administrator would like to improve CPU performance for this VM. Other VMs on the host have no performance issues. Which action should the administrator take to resolve the issue?

A. Set the Advanced Parameter numa.vcpu.preferHT = TRUE in the virtual machine configuration file.

B. Set the Advanced Parameter numa.vcpu.preferHT = FALSE in the virtual machine configuration file.

C. Set the Advanced Parameter numa.PreferHT = 1 in the ESXi host configuration file.

D. Set the Advanced Parameter numa.PreferHT = 0 in the ESXi host configuration file.

Answer: A

Q4. An administrator connects to an ESXi 6.x host console in order to shutdown the host. Which option in the Direct Console User Interface would perform this task?

A. Press the F12 key

B. Press the F2 key

C. Press Alt + F1 simultaneously

D. Press Alt + F2 simultaneously

Answer: A

Q5. Which three services can be enabled/disabled in the Security Profile for an ESXi host? (Choose three.)

A. CIM Server

B. Single Sign-On

C. Direct Console UI

D. Syslog Server

E. vSphere Web Access

Answer: A,C,D

Q6. VMware vSphere Replication protects virtual machines from partial or complete site failures by replicating the virtual machines between which three sites? (Choose three.)

A. From a source site to a target site.

B. From within a single site from one cluster to another.

C. From multiple source sites to a shared remote target site.

D. From a single source site to multiple remote target sites.

E. From multiple source sites to multiple remote target sites.

Answer: A,B,C

Q7. What are two ways to view the DNS settings for an ESXi 6.x host? (Choose two.)

A. Use the vicfg-dns command from the vSphere Management Appliance.

B. View the /etc/resolv.conf file on the ESXi host.

C. Use vicfg-dns command on the ESXi host.

D. View the /etc/dns.conf file on the ESXi host.

Answer: A,B

Q8. Refer to the Exhibit.

An administrator is troubleshooting a CPU performance related problem for the SlowVM virtual machine.

Which three actions should the administrator take to improve CPU performance for SlowVM? (Choose three.)

A. Increase the number of vCPUs assigned to SlowVM.

B. Decrease the number of vCPUs assigned to SlowVM.

C. Power off other VMs running on the same ESXi host.

D. Increase the CPU limit for SlowVM.

E. Move SlowVM to another ESXi host with more physical CPU resources available.

Answer: B,C,E

Q9. Which two tasks does the Pluggable Storage Architecture (PSA) perform? (Choose two.)

A. Handles I/O queueing to the logical devices.

B. Handles physical path discovery, but is not involved in the removal.

C. Handles physical path discovery and removal.

D. Handles I/O queueing to FC storage HBAs.

Answer: : A,C

Q10. What are two use cases for Fibre Channel Zoning in a vSphere environment? (Choose two.)

A. Increases the number of targets presented to an ESXi host.

B. Controls and isolates paths in a fabric.

C. Controls and isolates paths to an NFS share.

D. Can be used to separate different environments.

Answer: B,D