74-409 Exam
[Sep 2021] 74-409 training material
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2021 Sep 74-409 server virtualization with windows server hyper-v and system center:
Q1. A company has two offices in New York and one office in San Francisco. There is no shared storage between the San Francisco office and the New York headquarters. All offices are connected by a wide area network (WAN). The Hyper-V environment is configured as shown in the following table:
All virtual machines must be highly available. You need to configure the environment. What should you implement?
A. a separate Hyper-V replica between NYC-Host1 and SFC-Host1
B. a Hyper-V cluster that includes NYC-Host1, NYC-Host2, and SFC-Host1
C. a Hyper-V cluster between NYC-Host1 and SFC-Host1
D. a Hyper-V replica between NYC-Host1 and NYC-Host2 with an extended replica between NYC-Host1 and SFC-Host1
Answer: D
Explanation:
Ref: http://blogs.technet.com/b/virtualization/archive/2013/10/22/what-s-new-in-windows-server-2012-r2.aspx
Role/Feature description
Hyper-V Replica provides asynchronous replication of Hyper-V virtual machines between two hosting servers. It is simple to configure and does not require either shared storage or any particular storage hardware. Any server workload that can be virtualized in Hyper-V can be replicated. Replication works over any ordinary IP-based network, and the replicated data can be encrypted during transmission. Hyper-V Replica works with standalone servers, failover clusters, or a mixture of both. The servers can be physically co-located or widely separated geographically. The physical servers do not need to be in the same domain, or even joined to any domain at all.
Read Technet for more on Extended replica
Q2. You administer a Windows Server 2012 R2 server that has the Hyper-V role installed. You deploy a new virtual machine. You add two virtual network adapters to the virtual machine.
You need to ensure that the virtual machine maintains network connectivity if one virtual network adapter fails.
What should you do?
A. Run the Windows PowerShell cmdlet Enable-VMReplication.
B. Enable Dynamic Host Configuration Protocol (DHCP) Guard.
C. Run the Windows PowerShell cmdlet Set-VMHost.
D. Run the Windows PowerShell cmdlet Set-VMNetworkAdapter.
Answer: D
Explanation: Ref: http://technet.microsoft.com/en-us/library/hh848457.aspx
Q3. OTSPOT
You have an environment that contains the servers as shown in the following table:
You purchase a physical server that supports out-of-band management to deploy as a bare-metal Hyper-V host server.
Administrators must be able to deploy standard Hyper-V host server images to bare-metal computers by using the least amount of administrative effort.
You need to prepare the environment.
What should you use? To answer, select the appropriate option from each drop-down menu in the answer area.
Answer:
Q4. Contoso, Ltd. has a Windows Server 2012 R2 server with the Hyper-V role installed. Contoso has a virtual machine named CVM1. The company uses System Center 2012 R2 Virtual Machine Manager (VMM) to manage the environment.
Contoso acquires Fabrikam, Inc. Fabrikam has a Windows Server 2012 R2 server with the Hyper-V role installed.
CVM1 must be able to communicate with a virtual machine named FVM2 on a non-routable subnet in the Fabrikam Hyper-V environment
You need to ensure that CVM1 can communicate with FVM2.
Which technology should you implement?
A. Remote Desktop (RD) Gateway
B. Windows Network Load Balancing (WNLB)
C. Windows Server Gateway
D. Reverse Proxy Server
Answer: C
Explanation:
Ref: http://technet.microsoft.com/en-us/library/dn313101.aspx
Q5. UESTION NO: 23 You are the virtualization administrator for an organization that manages private and public
cloud-based resources. The organization uses Windows Server 2008 R2 SP1 Hyper-V. All Hyper-V host servers are configured as nodes in a four-node cluster. The organization also uses System Center 2012 R2.
Operating system updates to each host server require a system reboot.
You need to ensure that the virtual machines remain online during any reboots required by the updates.
What should you do?
A. Apply updates by using the Virtual Machine Servicing Tool (VMST).
B. Configure orchestrated updates of Hyper-V host clusters in System Center 2012 R2 Virtual Machine Manager (VMM).
C. Implement cluster-aware updating with the Cluster-Aware Updating (CAU) wizard.
D. In System Center 2012 R2 Configuration Manager, add all of the servers to a collection. Deploy updates to the collection.
Answer: C
Explanation:
http://technet.microsoft.com/en-us/library/hh831694.aspx
CAU is an automated feature that enables you to update clustered servers with little or no loss of availability during the update process. During an Updating Run, CAU transparently performs the following tasks:
.
Puts each node of the cluster into node maintenance mode
.
Moves the clustered roles off the node
.
Installs the updates and any dependent updates
.
Performs a restart if necessary
.
Brings the node out of maintenance mode
.
Restores the clustered roles on the node
.
Moves to update the next node
For many clustered roles (formerly called clustered applications and services) in the cluster, the automatic update process triggers a planned failover, and it can cause a transient service interruption for connected clients. However, in the case of continuously available workloads such as Hyper-V with live migration or file server with SMB Transparent Failover, CAU can coordinate cluster updates with no impact to the service availability.
Note The CAU feature is only compatible with Windows Server 2012 R2 and Windows Server 2012 failover clusters and the clustered roles that are supported on those versions.
Renewal exam 74-409:
Q6. A company has seven Windows Server 2012 R2 virtual machines (VMs). The VMs are running and are accessible over the network. You plan to copy a large .ISO file from the host server to each of the VMs.
The copy operations must meet the following requirements:
..
The VMs must remain accessible over the network during the copy operations. The copy operations must NOT use a network connection.
You need to configure the VMs. What should you do on each VM?
A. Enable the Guest services integration service.
B. Enable the Data Exchange integration service.
C. Add a network adapter, and then enable the virtual machine queue (VMQ) option on the adapters.
D. Set the value of the Smart Paging File Location property to %SYSTEMROOT%\temp.
Answer: A
Explanation: Ref: http://technet.microsoft.com/en-us/library/dn282278.aspx
Q: What is the new Guest services integration service in Windows Server 2012 R2 Hyper-V?
A: Several integration services are available for virtual machines (VMs) such as time synchronization, heartbeat, backup, OS shutdown, and data exchange. In Windows Server 2012 R2, a new integration service has been added, Guest services. Guest services enables the copying of files to a VM using WMI APIs or using the new Copy-VMFile Windows PowerShell cmdlet.
Q7. An organization uses System Center 2012 R2 Data Protection Manager (DPM).
Backups of virtual machines that are hosted on local volumes complete successfully. Backups of virtual machines that are hosted on storage area network (SAN) volumes fail. You receive the following error message in the Windows Event Log:
Backup failed with the following error
An error occurred:
Writer 'Microsoft Hyper-V VSS Writer' reported an error: 'VSS_WS_FAILED_AT_FREEZE'. Check the application component to verify it is in a valid state for the operation.
You need to ensure that all backups can complete successfully.
What should you do?
A. On the Cluster Shared Volume (CSV), grant administrator rights to the DPM server computer account.
B. On all Windows servers in the environment, enable the Volume Shadow Copy Service (VSS).
C. Install and configure the Volume Shadow Copy Service (VSS) hardware provider from the SAN vendor.
D. On virtual machine files hosted on the Cluster Shared Volume (CSV), grant administrator rights to the DPM server computer account.
Answer: C
Explanation: Ref: http://technet.microsoft.com/en-us/library/hh758184.aspx
Q8. You administer two servers that run Windows Server 2012 R2. Both servers are part of a Hyper-V cluster. The servers are configured as shown in the following diagram:
All of the .vhdx files are stored on DISK1.
You observe that the physical input/output (I/O) performance degrades when .vhdx files are accessed.
You need to improve performance.
Which two actions should you perform? Each correct answer presents part of the solution.
A. Run the Windows PowerShell command Set-BCCache 10.
B. On each host server, enable write caching for DISK1.
C. Run the Windows PowerShell command Get-ClusterSharedVolumeBlockCacheSizeInMB = 0.
D. Run the Windows PowerShell command (Get-Cluster).SharedVolumeBlockCacheSizeInMB = 512.
E. Run the Windows PowerShell command Get-ClusterSharedVolume "Disk1" | Set-ClusterParameter CsvEnableBlockCache 1.
F. On each host server, disable write caching for DISK0.
Answer: D,E
Explanation: http://windowsitpro.com/windows-server-2012/configuring-csv-cache
D: Configuring CSV Cache Windows Server 2012 R2
1.
Open an elevated Windows PowerShell prompt
2.
Define the size of the size of the cache to be reserved (example of setting to 1 GB)
(Get-Cluster). BlockCacheSize = 1024
Note:
* There are two configuration settings that allow you to control CSV Cache.
E: CsvEnableBlockCache – This is a private property of the cluster Physical Disk resource.
It allows you to enable CSV Cache on an individual disk. This gives you the flexibility to
configure cache for read intensive VMs running on some disks, while allowing you to
disable and prevent random I/O on other disks from purging the cache. For example parent
VHD’s with high reads you would enable caching on Disk1, and high writes for differencing
disks the CSV cache could be disabled on Disk2. The default setting is 0 for disabled,
setting to a value of 1 enables CSV Block Cache on that disk.
Note: In Windows Server 2012 R2 this property has been renamed to EnableBlockCache
and is Enabled by default.
D: SharedVolumeBlockCacheSizeInMB – This is a cluster common property that allows
you to define how much memory (in megabytes) you wish to reserve for the CSV Cache on
each node in the cluster. If a value of 512 is defined, then 512 MB of system memory will
be reserved on each node in the Failover Cluster. Configuring a value of 0 disables CSV
Block Cache. Note: In Windows Server 2012 R2 this property has been renamed to
BlockCacheSize.
* The main new features of the VHDX format are:
/ Support for virtual hard disk storage capacity of up to 64 TB.
/ Protection against data corruption during power failures by logging updates to the VHDX
metadata structures.
/ Improved alignment of the virtual hard disk format to work well on large sector disks.
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Q9. You administer two Windows Server 2012 R2 servers that have the Hyper-V role installed. You use System Center 2012 Virtual Machine Manager (VMM) to manage the Hyper-V host servers.
You need to create a server lab environment. The lab servers have the following requirements:
All of the lab servers must be virtualized.
All of the lab servers must be on an isolated network.
All of the lab servers must be able to communicate with each other.
You need to configure networking for the lab environment.
What should you do?
...
A. Create a logical switch.
B. Create a media access control (MAC) pool.
C. Add a load balancer.
D. Create a private virtual LAN (PVLAN) logical network.
Answer: D
Explanation: Ref: http://blogs.technet.com/b/scvmm/archive/2013/06/04/logical-networks-part-iv-pvlan-isolation.aspx
Q10. RAG DROP
A software company has a Windows Server 2012 R2 server that has the Hyper-V role installed. The server hosts a single virtual machine (VM) named VM1. VM1 has one virtual CPU, one virtual hard disk, and one virtual network interface card (NIC) that is attached to an external network.
The company prepares to test its software in VM1. Before testing begins, VM1 must meet the following requirements:
. Availability of network bandwidth must be maximized.
. VM network connectivity must be fault tolerant.
You need to configure the environment.
Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer: