Deck 6: Troubleshooting

Question 1

Sarah, a VMware administrator, has received multiple reports that several servers on a particular host are having errors. She logs onto the servers in question but can find little information from the operating system event logs. Sarah suspects there may be a hardware issue on the host. Which of the following is a good next step in Sarah's investigation?

A)Sarah will have to power off the host and reboot it, checking the bios for any errors.
B)Sarah cannot check for hardware errors; she will have to migrate the virtual machines to another host and replace the faulty host.
C)Sarah can check the vCenter Hardware Status tab on the host in question.
D)Sarah can check the vCenter service status.

Answer 1

Sarah can check the vCenter Hardware Status tab on the host in question.

Question 2

Sarah, a VMware administrator, is receiving repeated reports that several servers on one host are having errors. She logs onto the servers in question but can find little information from the operating system event logs. She wishes to place a support call with VMware and have the support team find the fault. What could she do in order to expedite the VMware support team's efforts?

A)She could migrate all the virtual machines onto as few hosts as possible.
B)She could take screenshots of every configuration item on all servers.
C)She could export the system logs.
D)She could reboot all hosts in the vCenter system.

Answer 2

She could export the system logs.

Question 3

John, a VMware administrator, has set a virtual machine as fault tolerant using VMware Fault Tolerance. The fault-tolerant pair of virtual machines has been working as expected for several weeks, but John is now receiving errors relating to the fault-tolerant pair. What is a likely cause of these error messages?

A)The hosts are at the same patch level.
B)There are only four identical hosts in the vSphere cluster.
C)The virtual machines only have one vCPU.
D)There is increased bandwidth on the physical network.

Answer 3

There is increased bandwidth on the physical network.

Question 4

John, a VMware administrator, has set a virtual machine as fault tolerant using VMware Fault Tolerance. The fault-tolerant pair of virtual machines worked as expected for several weeks, but for the past two days the fault tolerant pair has been failing over repeatedly. Though there hasn't been an outage, John is concerned. What is a likely cause of the repeated failover?

A)There has been an increased level of VMFS activity.
B)The hosts are at the same patch level.
C)There are only four identical hosts in the vSphere cluster.
D)The virtual machines only have one vCPU.

Question 5

Which option below best describes the vSphere command line utility vmkping?

A)vmkping is used to reboot hosts.
B)vmkping is used to test VMkernel connectivity.
C)vmkping is used to reboot the VMkernel.
D)vmkping is used to test virtual machine connectivity.

Question 6

What is the correct setting of a host network adapter with regards to speed and duplex?

A)100 Mbps, full
B)100 Mbps, half
C)1 Gb, full
D)Auto-negotiate

Question 7

Where can you check the configuration of a vSphere Distributed Switch using the vSphere client?

A)From the hosts configuration section
B)From the main network view
C)From the VMs and Templates view.
D)From the Datastores view.

Question 8

You can manually specify a MAC address for a virtual machine network card.

Question 9

What vSphere item can be used for troubleshooting storage latency with the vsphere client?

A)vSphere Storage Latency plugin
B)vSphere Storage Evaluator
C)The performance tab of the ESX host
D)The performance tab of the vCenter server

Question 10

Which ESX command line tool can be used to troubleshoot performance-related issues for all aspects of ESX?

A)esxperf
B)esxtop
C)esxanalyse
D)esxtroubleshoot

Question 11

What is the MTU required for ISCSI storage networking on vSphere to enable Jumbo Frames?

A)1500
B)1700
C)6000
D)9000

Question 12

What is one of the main advantages of enabling Jumbo Frames on an ISCSI storage network?

A)The network cards will have an increased life span.
B)With Jumbo Frames enabled, the maximum number machines per ESX host doubles.
C)The CPU of the ESX host will be utilized less.
D)The failover times are reduced.

Question 13

What is a requirement of an HA/DRS cluster?

A)The virtual machines must only have one CPU.
B)The hosts CPUs must be compatible.
C)The virtual machines must not have more than 2 GB of memory.
D)The hosts must have 6 or more NICs.

Question 14

HA and DRS will not work if two hosts in a cluster have CPUs that are from the same family but of different speeds.

Question 15

Of the following options, which are requirements of an HA/DRS cluster? Pick two.

A)Hosts must be connected to vCenter.
B)Hosts must have more than four logical CPUs.
C)Hosts must have more than 16 GB of RAM.
D)Hosts must have gigabit network cards.

Question 16

John, a VMware administrator, is experiencing strange errors with an HA/DRS cluster. Which of the following is a likely cause of HA/DRS cluster errors?

A)DNS is not functioning correctly.
B)WINS is not functioning correctly.
C)The static WINS files on the ESX hosts are out of date.

Question 17

John, a VMware administrator, is trying to modify an alarm for a virtual machine, but he is unable to do so. Which of the following options is a possible reason for this failure?

A)Alarms for virtual machines cannot be altered.
B)The alarm was created at a higher level in the inventory.
C)Alarms for virtual machines can only be deleted.
D)John is not in the VMs and Templates view.

Question 18

Which of the following are options for a triggered alarm? Select two.

A)Send a notification trap.
B)Send a text message.
C)Reboot the vCenter Server.
D)Send a notification email.

Question 19

Of the following options, which can be monitored by vCenter? Select three.

A)Virtual machines
B)Hosts
C)Clusters
D)Physical switches

Question 20

Of the following two choices, which is considered worse?

A)Memory ballooning
B)Memory swapping

Question 21

Where can you view the DRS "Current host load standard deviation" value?

A)From the control panel of the vCenter server.
B)From the summary page of the vSphere cluster.
C)From the DRS tab of the vSphere cluster.
D)From the resource allocation tab of the vSphere cluster.

Question 22

VMware uses colours to depict alarm severity. Please choose the three colours it uses.

A)Amber
B)Yellow
C)Green
D)Red
E)Orange

Question 23

An alarms can be configured to trigger an action when a certain state change occurs. Of the state changes below, please select the two that can trigger an action.

A)Green to Yellow
B)Red to Green
C)Red to Yellow
D)Green to Red.

Question 24

Which of the following is NOT a default VMware alarm?

A)Cannot Connect to Network
B)Host Battery Status
C)Battery Acid Low
D)Exit Standby Error

Question 25

Of the options below, which are default vCenter alarms? Select two.

A)Host Memory Usage
B)Host Corruption
C)Host Storage Status
D)Host Deferred

Question 26

Of the following options, which are default collection intervals for vCenter Server statistics? Choose three.

A)Hour
B)Day
C)Week
D)Month
E)Quarter

Question 27

What is the default real time collection interval for ESX host statistics?

A)20 seconds
B)1 minute
C)5 seconds
D)2 seconds
E)1 hour

Question 28

John, a VMware administrator, has noticed a massive increase in the vCenter database size. What is also alarming is that the size is continually increasing at an alarming rate. What is a possible cause for this increase?

A)The database has a simple recovery model.
B)The database backup failed.
C)The vCenter statistics level is set to 4.

Question 29

What vCenter statistics level should be set in order to capture device metrics?

A)1
B)2
C)3

Question 30

How many years are statistics saved in the vCenter database by default?

A)3
B)2
C)1
D)4

Question 31

John, a VMware consultant, has been given six months of vCenter data exports. He has been instructed to analyze the data, as the customer is experiencing performance-related problems. What client tool could John use to analyse the data set?

A)Windows Task Manager
B)Windows Control Panel
C)Windows Perfmon
D)Windows Perftool

Question 32

Alex, a VMware administrator, is experiencing application performance issues on a virtual machine. The ESX host has 2 dual-core CPUs and 64 GB of RAM. It currently hosts 8 virtual machines. The machine with performance issues has 4 vCPUs and 4 GB of RAM. The other 7 machines each have 1 vCPU and 4 GB of RAM. Select a possible cause of the performance issues from the choices below.

A)There is memory contention on the ESX host.
B)The virtual machine has a multi-threaded application.
C)The host only has four 1Gb Ethernet cards.

Question 33

What is the default collection frequency for a one-year collection interval?

A)1 month
B)1 year
C)1 day
D)1 week

Question 34

John, a VMware administrator, is connected directly to an ESX host using the vSphere client. He is trying to change the default interval that statistics are captured for. He is not able to do so. What is a possible reason for this?

A)John does not know the vpxuser password.
B)John is using the wrong version of the vSphere client.
C)The statistics in question can only be updated from the vCenter Server system.
D)John doesn't know where to find the settings.