1Y0-A26 - Citrix XenServer 6.0 Administration
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Scenario: An administrator is installing Provisioning services on a new server. DHCP and PXE servers are already configured. Which option must the administrator select during the initial Provisioning services configuration to configure the PXE Service?
The service that runs on another computer
Scenario: An administrator is troubleshooting a Provisioning services farm that consists of two identical servers and 100 identical target devices. From the Provisioning Services Console the administrator notices that one of the provisioning servers has twice the amount of target devices connected compared with the other provisioning server. The vDisk used and the provisioning servers are configured to use high availability and load balancing. What should the administrator check to correct load balancing?
Scenario: An administrator is planning to upgrade the RAM in a XenServer host. Due to business restrictions, the host must be shut down during normal business hours. High availability is enabled in the XenServer resource pool. Which step does the administrator need to take before shutting down the XenServer host to allow the virtual machines to run after the host is shut down?
Place the host in maintenance mode.
Scenario: An administrator CANNOT use the PXE boot method with the Provisioning services environment because of network limitations. The target devices are running on a XenServer host. How can the administrator configure the target devices to start up using Provisioning services?
Create a bootstrap disk with Boot Device Manager.
Scenario: An administrator is making changes to a stand-alone XenServer host and has taken it offline. The virtual machines on that host will be restored to another host. The administrator needs to __________the virtual machines to meet the requirements of the scenario. (Choose the correct option to complete the sentence.)
Scenario: An administrator is in the process of updating a database server on a virtual machine and would like to preserve its current state in case something goes wrong. The virtual machine is being used in a production environment and needs to remain online. What can the administrator do to meet the requirements of the scenario?
Perform an online backup by taking a snapshot of the virtual machine.
Scenario: An administrator needs to remove QoS processing from a virtual machine. The virtual machine is experiencing performance issues with web traffic in a XenServer environment with a global QoS policy applied. Which configuration change should the administrator make to satisfy this requirement?
Disable inherited QoS policy
Scenario: After a host failure, an administrator rebuilt the host and restored the XenServer pool database. However, all virtual machines are registered as suspended. Which command can the administrator use to correct the situation?
xe vm-reset-powerstate vm=vm_name -force
Which Access Control List should the administrator choose to disable port 80 access to network interfaces on a virtual machine?
Scenario: An administrator of a XenServer resource pool is running multiple XenDesktop virtual machines. To reduce the amount of network traffic between the host and network storage, the administrator enabled IntelliCache. Which type of storage repository must the administrator use in this scenario?
Which two policy modes must the administrator apply to implement a XenServer workload balancing policy to help reduce power consumption and energy costs during all hours? (Choose two.)
Scenario: A virtual machine that uses Provisioning services is accidentally deleted by an administrator. The administrator creates a new virtual machine from the same template that was used to create the virtual machine deleted. However, the virtual machine is NOT able to start up from the vDisk. What must the administrator do to resolve the issue?
Reconfigure the target device MAC address.
An administrator is setting up the XenServer hosts in an environment to boot from SAN. In which BIOS would the administrator go to enable XenServer to boot from SAN?
Primary host bus adapter
Scenario: An administrator is creating a vDisk image of a physical Windows server using XenConvert. This vDisk is going to be used by multiple target devices in Standard Image mode. Which two steps does the administrator need to take to prepare the Windows server for physical- to-virtual conversion? (Choose two.)
Disable Windows Autoplay.
Enable Windows Automount.
Scenario: An administrator is creating a vDisk image of a physical Windows server using XenConvert. This vDisk is going to be used by multiple target devices in Standard Image mode. Which two steps does the administrator need to take to prepare the Windows server for physical-to-virtual conversion? (Choose two.)
Disable Windows Autoplay.
Enable Windows Automount.
Scenario: An administrator needs to ensure that the XenServer pool database in a two-server pool is highly available. However, one of the XenServer hosts has failed and is NOT recoverable. The administrator now must re-establish high availability using a new host. The existing host has taken the master role. Which step should the administrator take to recover the backup pool information to the new XenServer host and ensure that it is highly available with the existing XenServer master?
Add the new host to the existing pool.
An administrator needs to back up the metadata of a XenServer pool on a scheduled basis to replicate to the Disaster Recovery site. Which two steps must the administrator take to backup the pool? (Choose two.)
Open the XenServer console.
Select Backup, Restore and Update.
Which two DHCP options must an administrator configure for a target device to start up without PXE using a bootstrap file? (Choose two.)
Scenario: An administrator is configuring a distributed Provisioning services farm, which will span six remote sites. All remote sites are connected by WAN links and the Provisioning services SQL database in the main datacenter. Which option could the administrator configure to achieve high availability of Provisioning services during a network outage?
Offline Database Support
An administrator needs to apply an update to a XenServer pool, but needs to control the update path and the virtual machine migration. What does the administrator need to do to achieve this?
Update each host individually starting with the pool master.
Which command should the administrator use to back up XenServer pool metadata regularly?
Scenario: Users are NOT able to log into XenCenter using their Active Directory credentials. The administrator checked to ensure that the XenServer host exists as a valid computer object in Active Directory. What should the administrator do to ensure that users are able to authenticate successfully using XenCenter?
Check that the time is synchronized between Active Directory and the XenServer host.
An administrator needs to configure a Provisioning services environment for Microsoft volume license management. Which properties could the administrator configure to accomplish this task?
An administrator needs to export a virtual machine to an NFS share mounted on a XenServer host. Which xe CLI command does the administrator need to execute from a remote machine to perform the virtual machine export?
xe vm-export -h <hostname> -u <root> -pw <password> vm=<vm_name> filename=<pathname_of_file>
Scenario: An administrator is able to connect on some ports of a XenServer and NOT connect on others. The XenServer responds by indicating that some of the ports are blocked. The interface in question is the first Ethernet NIC. Which two commands should the administrator run from the XenServer console to find out if any ports are blocked? (Choose two.)
tcpdump -i eth0
Scenario: An environment, which consists of two XenServer pools, is used to host a web server environment. Pool Two contains only web servers and is used only during peak load. Pool One contains authentication and web servers. An administrator must ensure that access to the web servers is available at all times. What is the minimum requirement to achieve this?
Enable high availability on Pool One.
Scenario: An administrator configured link aggregation on two switch ports that are connected to the XenServer network interface card (NIC) bond. NO network flow is possible on the NIC bond. How can the administrator resolve this networking issue?
Remove link aggregation from the switch ports.
Which item in the Provisioning Services Console will the administrator need to configure to add a machine account from the Active Directory domain?
An administrator needs to run commands to specify __________ to configure email alerts at the host level. (Choose the correct option to complete the sentence.)
the recipient email address and SMTP server
Scenario: An administrator needs to add two new XenServer hosts to an existing pool. Before adding a host to the pool, the administrator created a network bond on the pool master. Which CLI command must the administrator run to replicate the bond on the new hosts?
An administrator is deploying Provisioning services in a XenServer environment. Which DHCP option must the administrator enable so that the target device will retrieve the boot file by name from the TFTP server?
Scenario: An administrator purchased a new iSCSI Dell EqualLogic SAN. The administrator is required to configure a new storage repository on the XenServer pool and offload intensive tasks such as LUN provisioning, snapshot and cloning of data to the new SAN. Which type of storage repository must the administrator create to meet the requirements of this scenario?
Scenario: An administrator needs to isolate network communication between two virtual machines on different XenServer hosts in the same pool. The existing network features 1 GB switches, which do NOT support VLANS. Which network type must the administrator select to meet the requirements of the scenario?
Scenario: An administrator has to configure a small scale, isolated Provisioning services test environment. The administrator has placed a non-Microsoft DHCP server on the same server as Provisioning services, which is running the PXE Service. Which DHCP option must the administrator configure to enable PXE functionality?
Scenario: The SAN Administrator provided an NFS share for the XenServer Administrator to use. The share name is NfsLun01 and is located at 192.168.0.53. Which format must the administrator use to connect to the share?
Scenario: An administrator is troubleshooting a Provisioning services environment. After the administrator configured a new version of the vDisk for 10 identical target devices all running on the same XenServer host, the administrator discovers that only the first target device started with the new vDisk configured. The other nine target devices failed to startup. What is one of the steps the administrator should take to resolve this issue?
Change the vDisk access mode.
Scenario: To improve performance and increase security, a network team will be moving all XenServer hosts into a more secure, and high resiliency subnet. The administrator must now change the subnet mask on all XenServer hosts to match the new network: 172.16.0.0/16. Which command will the administrator need to execute on each host?
xe pif-reconfigure-ip uuid= mode=static netmask=255.255.0.0
An administrator needs to modify an application contained within a vDisk that is currently being used by multiple target devices. Which option must the administrator select on the vDisk in order to modify the application?
Private Image mode
An administrator noticed that a storage repository is unable to attach or be repaired in the XenCenter console. Which command can the administrator run in the XenServer CLI to reconnect the storage repository?
Scenario: An administrator has three servers in a pool each containing three physical network interface cards (NICs). Currently NIC 0 is used for management, NIC 1 for virtual machine traffic, and NIC 2 for storage traffic. Which network type must the administrator create to access multiple VLANs for virtual machine traffic?
Scenario: An administrator is unable to connect to a resource pool in a XenServer environment in which high availability is enabled. The administrator discovers that the host is unreachable. What does the administrator need to do to recover the host?
Run the emergency-ha-disable command, then once the host is restarted, run the pool-ha-enable command.
An administrator needs to create a template from an existing virtual machine that is installed with Windows Server 2008. The administrator needs to __________ the virtual machine before converting it into a template. (Choose the correct option to complete the sentence.)
The development team requires that a virtual machine be restored to the state it was on the previous day, but will need parallel access to the current state of the virtual machine. What can an administrator do to meet the requirements of the scenario?
Create a new virtual machine from the previous snapshot and start it.
An administrator cloned a template into a virtual machine and then converted it back into a template. Which action must be performed on the disks to restore expected levels of disk performance?
Complete a full copy
Scenario: An administrator manages six XenServer hosts in a resource pool in which high availability is enabled. The administrator is notified that host fencing occurred. Which two reasons could be causing the issue? (Choose two.)
The shared storage repository was disconnected.
There was a XenServer management network outage.
An administrator needs to create a network Access Control List for a group of hosts in XenServer. Which Access Control List should the administrator choose?
An administrator needs to create a resource pool of XenServer hosts. Which two options are required of each host to create a homogeneous resource pool? (Choose two.)
Same vendor and CPU type
Same version of XenServer and hotfixes installed
Scenario: An administrator is moving a XenServer host from the New York datacenter to the London datacenter. During the installation of XenServer, the default NTP settings were selected. How must the administrator ensure that the XenServer host has the correct time settings?
Change the time zone using the xsconsole.
Scenario: An administrator is planning to introduce 100 new virtual machines into the environment. The administrator plans to use XenServer templates and duplication mechanisms. What must the administrator consider when deciding between the full copy and fast clone duplication mechanisms?
A virtual machine that is duplicated using the fast cloned method may impact disk performance.
An administrator needs to throttle traffic from the virtual print server because it has been impacting all virtual machines on the network. On which object should the QoS policy be configured?