Section 8 – Perform Basic Troubleshooting and Alarm Management
- Objective 8.1 – Perform Basic Troubleshooting for ESX/ESXi Hosts
QUESTION 11
In the vSphere Client the Virtual Machine Resource Allocation tab shows Host Memory and Guest Memory.
What is the meaning of these terms? (Choose two)
A.Host memory is the actual memory usage of the Virtual Machine.
B.Guest Memory is the actual memory usage of the Virtual Machine
C.Host memory is the amount of physical memory that has been allocated to a Virtual Machine
D.Guest Memory is amount of physical memory that has been allocated to a Virtual Machine
Answer: AD
Explanation:
vSphere Help
Host Memory
This section displays information about host memory usage. [A above]
Table 36. Host Memory Usage
Host memory therefore refers to the current usage of memory rather than the current allocation, Guest Memory
This section displays information about guest memory usage. [B above].
Table 37. Guest Memory Usage
QUESTION 12
An administrator wants to apply Disk Shares to ensure proper storage performance. These shares are configured on which object?
A.Resource Pool
B.Storage Adapter
C.Virtual Machine
D.Datastore
Answer: C
Explanation:
The screenshot below shows Disk configured on a Virtual Machine
QUESTION 13
An ESX Administrator is troubleshooting an ESX 4.0 Server and needs to export diagnostic information. The ESX Server is not connected to vCenter. How can the information be gathered using the vSphere Client?
A.Click, File, Export and Export Diagnostic Data, select a location and click OK.
B.From the Administration Drop-Down Menu, select Export Diagnostic Data, select a location and click OK.
C.Click the Administration Button, select System Logs, then click the Export Events button. Select the ESX Server and click OK.
D.The vSphere Client can only be used to export diagnostic data from an ESX Server attached to VirtualCenter.
E.Click, File, Export and Export System Logs, select a location and click OK.
Answer: E
Explanation:
The screenshot below shows diagnostic information can be exported.
QUESTION 14
Under which circumstance will a virtual machine always fail to power on?
A.when there is no free space in VMFS
B.when the virtual machine’s reservation cannot be guaranteed
C.when the host’s license server became inaccessible 24 hours ago
D.when the virtual machine’s memory is configured at greater than 3.6 GB
Answer: B
Explanation:
Resource Management Guide : Resource Management Jumpstart : Understanding Virtual Machine Resource Allocation : Virtual Machine Attributes: Shares, Reservation, and Limit
Reservation specifies the guaranteed reservation for a virtual machine. The server allows you to power on a virtual machine only if the CPU and memory reservation is available
QUESTION 15
A new LUN has been presented to ESX Servers A and B. A new VMFS-3 volume is created on the LUN using a vSphere client attached to ESX Server A. The new datastore is visible on ESX Server A, but not on ESX Server B. What steps must be taken to make the datastore visible to ESX Server B?
A.reboot ESX Server B
B.perform LUN masking on ESX Server B
C.perform a Rescan operation on ESX Server B
D.repeat the steps taken on ESX Server A on ESX Server B
Answer: C
Explanation:
iSCSI SAN Configuration Guide, page 26.
The VMkernel discovers LUNs when it boots, and those LUNs are then visible in the vSphere Client. If changes are made to the LUNs, you must rescan to see those changes.
* New LUNs created on the iSCSI storage
* Changes to LUN access control
* Changes in connectivity
QUESTION 16
If a virtual machine (VM) experiences a monitor panic, where does the ESX Server core dump file get created?
A.in the core dump partition, if created
B.in the /home partition
C.in the same directory as the VM’s .vmx file
D.in the local VMFS volume
Answer: C
QUESTION 17
Which problem is MOST likely to be due to bad physical memory?
A.VMkernel panics
B.slow performance
C.errors on virtual machines’ virtual SCSI buses
D.virtual machines not starting
Answer: A
