Question 1

What is the minimum CPU requirement for a vCenter 4 installation?

Accepted Answer

The minimum CPU requirement for a vCenter 4 installation is one dual-core CPU or two single-core CPUs. vCenter 4 can manage as many as 3000 powered-on virtual machines in standalone mode, and because of this the processing requirements have increased over previous generations.

Question 2

What is the minimum amount of system RAM required for a vCenter server that has a remote database?

Accepted Answer

The minimum amount of system RAM required for a vCenter server that has a remote database is 3 GB. If the database is local to the vCenter server, then considerably more RAM is required. The vCenter server by default runs VMware VirtualCenter Management Webservices, which requires anywhere between 512 MB and 4.4 GB of additional RAM, but it can be disabled to conserve system RAM.

Question 3

During the installation of vCenter Server, you decide to install a local copy of Microsoft SQL Server 2005 Express. How much disk space is required to complete the SQL Server installation?

Accepted Answer

Up to 2 GB of disk space is needed to decompress the installation package for Microsoft SQLServer 2005 Express; post installation, 1.5 GB of files are deleted.

Question 4

What is the maximum number of concurrent operations per vCenter server?

Accepted Answer

The maximum number of concurrent operations per vCenter server is 96. This can be any combination of operations such vMotion, storage vMotion, cloning etc., provided that individual maximums are not exceeded.

Question 5

What is the high availability solution available from VMware for vCenter servers?

Accepted Answer

The high availability solution available from VMware for vCenter servers is called vCenter Server Heartbeat. vCenter Server Heartbeat provides application-level redundancy across two separate physical or virtual vCenter servers to provide a highly available management platform.

Question 6

What section in the vCenter Server settings allows you to estimate the size of the virtual center database?

Accepted Answer

The statistics section in the vCenter Server settings allows you to estimate the size of the virtual center database. This facility allows you to enter the number of hosts, the number of virtual machines and the statistics interval. After doing this it will estimate the size of your vCenter database. This should be used as a guideline only.

Question 7

Which ports does the vCenter web server use by default? Select two.

Accepted Answer

The default ports used by the vCenter web server are 8080 and 8443. These ports can be changed during the installation, provided the new ports are not already in use.

Question 8

The vCenter Guided Consolidation is installed as part of a standard vCenter installation.

Accepted Answer

The vCenter Guided Consolidation is not installed as part of a standard vCenter installation. vCenter Guided Consolidation can only be downloaded and installed after vCenter Server installation is completed. It can be used to both identify suitable candidates for virtualization and perform the actual migration process from a physical to a virtual server.

Question 9

VCenter Update Manager ______ share the same database as vCenter Server.

Accepted Answer

vCenter Update Manager can share the same database as vCenter Server. It is, however, recommended that you use a completely separate database. vCenter Update Manager allows an administrator to update all components of vSphere including hosts, virtual machines and vApps.

Question 10

Which of the following statements is true?

Accepted Answer

vCenter is fully supported in a virtual machine with no caveats. The vCenter server can be a virtual machine; in fact, this is a recommended configuration so that the virtual machine can take advantage of the high availability of vSphere.

Question 11

What is the VMware tool that allows you to migrate physical machines into a virtual environment?

Accepted Answer

The VMware tool that allows you to migrate physical machines into a virtual environment is VMware vCenter Converter. vCenter Converter allows you to automate and simplify physical-to-virtual machine conversions in addition to converting between virtual machine formats.

Question 12

Name three prerequisites for using a vCenter system to join a Linked Mode group?

Accepted Answer

In order for a vCenter system to join a Linked Mode group, DNS must be operational and time synchronization must be no more than 5 minutes apart. vCenter Server systems can be joined together to allow them to share information. When a server is connected to other vCenter Server systems, you can connect to that vCenter Server system to view and manage the assets of the linked vCenter Server systems.

Question 13

What is the maximum number of vCenter systems that can participate in a Linked Mode group?

Accepted Answer

The maximum number of vCenter systems that can participate in a Linked Mode group is 10. There are other maximum configurations associated with vCenter Linked Mode. For example, the maximum number of hosts that can be managed by VMware vCenter Converter is 1500.

Question 14

Select an answer to complete the following statement:
VCenter plugins can be removed in the __________.

Accepted Answer

vCenter plugins can be removed from the operating system's control panel. vCenter Plugins Manager can be used to download, install, enable or disable plugins only.

Question 15

Which type of user account is added to an ESX host when that host is joined to a vCenter server?

Accepted Answer

A "vpxuser" user account is added to an ESX host when that host is joined to a vCenter server. The vpxuser user is a vCenter Server entity with root privileges on the ESX/i host, allowing it to manage that host. The vpxuser account is created at the time that an ESX/i host is added to vCenter Server.

Question 16

System partitions on Windows Server 2003 servers can be resized during cloning using vCenter Server.

Accepted Answer

System partitions on Windows Server 2003 servers can be resized during cloning using vCenter Server. Guest customizations can be applied during a cloning operation; these include changing the host name, applying a new security identifier and changing the network details.

Question 17

Which objects can be created at the root of a vCenter inventory? Select two.

Accepted Answer

The only objects that can be created at the root of a vCenter inventory are a datacentre or a folder. Folders are recommended to group logical objects, whereas datacentres are recommended for representing geographical locations or organizational units.

Question 18

Which of the following tasks can be completed using the Scheduled Task feature in vCenter? Select three.

Accepted Answer

The following tasks can be completed using Scheduled Tasks in vCenter: change the VM power state, scan for updates and add a host. Several other tasks can be scheduled, including clone/deploy or migrate a virtual machine.

Question 19

For how many days can you evaluate vSphere before entering a license?

Accepted Answer

You may evaluate vSphere for up to 60 days before entering a license. During the 60-day period you can use all of the features of vSphere up to and including the Enterprise Plus edition. After this time you must enter a valid license key.

Question 20

Guy, a VMware administrator, has been instructed to delete the active directory user account of an administrator account suspected of malpractice. Two hours after Guy deletes the account, the rogue administrator's session still appears active in the vSphere sessions section. Active directory replication is set at 15 minutes. Why is the rogue administrator's session still active?

Accepted Answer

The session of the rogue administrator is active in the vSphere because users who are logged in and are removed from the domain keep their vSphere permissions until the next validation period. The default is every 24 hours. The session could be forcibly terminated by Guy, provided has the necessary permissions to do so.

Quiz 8: Vcenter