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Exam Code: 70-687
Exam Name: Configuring Windows 8.1 
QUESTION 231
You administer a Windows 8.1 computer that runs Hyper-V. The computer hosts a virtual machine with multiple snapshots. The virtual machine uses one virtual CPU and 512 MB of RAM.
You discover that the virtual machine pauses automatically and displays the state as paused-critical.
You need to identify the component that is causing the error.
Which component should you identify? A. Insufficient hard disk space
B. Insufficient number of virtual processors
C. No virtual switch defined
D. Insufficient memory Answer: A
Explanation:
http://blogs.msdn.com/b/virtual_pc_guy/archive/2009/04/22/why-is-my-virtual-machine-paused-critical-hyper-v.aspx 1
Why is my virtual machine "Paused-Critical"? [Hyper-V]
Virtual machines will go into the "Paused-Critical" state under Hyper-V if we detect that we are going to run out of space for the virtual hard disks. If we were to run out of space for expanding a dynamic or differencing virtual hard disk -we would start failing disk write operations inside the virtual machine. The result would most likely be that the guest operating system would crash.
To avoid this problem we periodically poll the storage that is being used for the virtual hard disks. If the free space falls under 2 gigabyte we will start to log warning messages in the event log. If the free space falls under 200 megabyte we will pause the virtual machine and mark it as "Paused-Critical". QUESTION 232
Hotspot Question
You install Windows 8.1 Enterprise on a new laptop that will be shipped to a remote user.
You logon to the laptop with the user credentials, map network drives, and configure the network drives to be always available offline file synchronization.
You need to prevent the user from creating files with a .dbl extension on the mapped drives.
In the Local Group Policy Editor, which setting should you configure? (To answer, select the appropriate setting in the answer area.) 
Answer: 
QUESTION 233
A company has Windows 8.1 client computers.
Users frequently run a custom web application that modifies the system registry.
Each time the application starts, the user is prompted for administrative approval.
You need to ensure that users can run the custom application and not be prompted for administrator approval.
What should you do?
A. Turn off Windows SmartScreen.
B. Set the Internet zone privacy level to Low.
C. Set the User Account Control (UAC) settings to Never notify.
D. Set the Internet zone security level to Medium. Answer: C
Explanation:
http://www.eightforums.com/tutorials/5509-user-account-control-uac-change-settings-windows-8-a.html 2
How to Change User Account Control (UAC) Settings in Windows 8 and 8.1 
Never notify me
You won't be notified before any changes are made to your PC. If you're signed in as an administrator, apps can make changes to your PC without your knowledge. If you're signed in as a standard user, any changes that require administrator permissions will automatically be denied. QUESTION 234
Drag and Drop Question
You administer 100 Windows 8.1 Pro laptops in your company network.
You have a wireless access point that requires 802.1x authentication.
Authentication requests are forwarded to a RADIUS server.
You need to configure the laptops to connect to the wireless access point.
Your solution must ensure that laptops authenticate to the RADIUS server by using stored credentials.
Which three actions should you perform in sequence? (To answer, move the appropriate three actions from the list of actions to the answer area and arrange them in the correct order.) 
Answer: 
QUESTION 235
You are the desktop administrator for a medium-sized company.
You are rolling out new Windows 8.1 computers to your employees.
You configure one of the computers so that it has the devices and settings the employees need for testing purposes.
You need to ensure that the hardware devices are operating properly.
Which tool should you use?
A. eventvwr.exe
B. Mmcdevmgmt.msc
C. sigverif.exe
D. Driverquery /si Answer: B
Explanation:
http://technet.microsoft.com/en-us/library/cc754081.aspx 3
Open Device Manager
mmc devmgmt.msc
http://windows.microsoft.com/en-us/windows-vista/get-help-with-device-manager-errors 4
Get help with Device Manager errors
Device Manager helps you determine which hardware devices are installed on your computer, and whether or not they are working properly. If one of your devices is not working properly, an error icon will appear next to the name of the device. If Device Manager cannot identify the device, it will label it an unknown device. 
An error icon appears next to any device that is not working properly.
In this example, a biometric coprocessor (fingerprint reader) is not functioning.
When a device is not working properly, Device Manager will also usually display an error message with an accompanying error code. There are many different Device Manager error codes. QUESTION 236
You administer Windows 8.1 computers in your company network, including a computer named Client.
You need to prevent users of Client1 from running applications that are stored on removable storage devices.
What should you do? A. Set Local Computer Policy: Removable Disks to Deny write access to Enabled.
B. Set Local User Policy: Removable Storage Access to Removable Disks: Deny read access to Enabled.
C. Set Local User Policy: Removable Storage Access to Removable Disks: Deny write access to Enabled.
D. Set Local Computer Policy: Removable Storage Access to Removable Disks: Deny execute access to Enabled. Answer: D
Explanation:
http://www.grouppolicy.biz/2012/01/how-to-use-group-policy-to-deny-executing-writing-andor-reading-on-removable-disks/ 5
How to use Group Policy to deny executing, writing and/or reading on removable disks 
QUESTION 237
A company has Windows 8.1 client computers.
The company develops a Windows Store app but does not publish it to the Windows Store.
You need to side load the Windows Store app on all client computers.
Which two actions should you perform? (Each correct answer presents part of the solution.
Choose two.)
A. Run the get-appxpackage Windows PowerShell cmdlet.
B. Run the add-appxpackage Windows PowerShell cmdlet.
C. Enable the Allow all trusted applications to install Group Policy setting.
D. Enable the Allow installation of desktop items Group Policy setting.
E. Run the msiexec command. Answer: BC
Explanation:
http://technet.microsoft.com/en-us/library/hh856048.aspx 6
Add-AppxPackage
The Add-AppxPackage cmdlet adds a signed app package (.appx) to a user account.
Use the DependencyPath parameter to add all other packages that are required for the installation of the app package.
You can use the Register parameter to install from a folder of unpackaged files during development of Windows Store apps.
To update an already installed package, the new package must have the same package family name.
http://technet.microsoft.com/en-US/windows/jj874388.aspx 7
Try It Out: Sideload Windows Store Apps
By now, you are familiar with Windows Store apps. There are some pretty cool ones available in the store, and publishers are adding more every week. A great thing about Windows Store apps is they are super simple to install (and uninstall). But what about line of business (LOB) apps? You probably do not want to publish them through the Windows Store since that would make them publically available. Instead, you can sideload LOB apps. Sideloading simply means installing a Windows Store app without publishing it in and downloading it from the store. You install it directly.
Verify the Requirements
There are a small number of requirements computers must meet to sideload Windows Store apps on them. We will start with computers running Windows 8 Enterprise:
The computer running Windows 8 Enterprise must be joined to the domain. You must enable the "Allow all trusted apps to install" Group Policy setting. The app must be signed by a certificate that is chained to a trusted root certificate.
Further Information:
http://technet.microsoft.com/en-us/library/hh856044.aspx 8 Get-AppxPackage
The Get-AppxPackage cmdlet gets a list of the app packages (.appx) that are installed in a user profile. To get the list of packages for a user profile other than the profile for the current user, you must run this command by using administrator permissions.
http://www.advancedinstaller.com/user-guide/msiexec.html 9 Msiexec.exe Command Line
The Windows Installer technology uses Msiexec.exe for installing MSI and MSP packages. QUESTION 238
You are a system administrator for a local accounting firm. Your company uses Windows 8.1 Pro desktop computers. All computers have a secondary D: drive.
You want to enable File History for all your users. You create the folder structure
D:BackupFile History on all user computers. You launch the File History application and verify that it is turned on, Next, you click Select drive in Configure File History Settings. However, under Copy Files to: you get the message, "No usable drives were found."
You need to successfully configure file history.
What should you do? A. Verify that your local drive has enough free space.
B. Share the File History folder.
C. Grant NTFS rights to the File History folder.
D. Use a network drive for file history. Answer: D
Explanation:
http://windows.microsoft.com/en-us/windows-8/set-drive-file-history 10
Set up a drive for File History
Before you start using File History to back up your files, you need to first select where your backups are saved. You can select an externally connected drive, such as a USB drive, or you can save to a drive on a network. There are other choices, but these two provide the best options to help protect your files against a crash or other PC problems. QUESTION 239
Hotspot Question
You are a system administrator for a local construction company. The company uses Windows 8.1 Pro desktop and laptop computers. All desktop computers have a 160 GB disk drive.
You receive a call from a user who needs to a recover an .avi file from file history but discovers that the file no longer exists. The user reports recently deleting a large PowerPoint presentation from the hard drive.
The user's File History configuration is displayed in the graphic below: 
Use the drop-down menus to select the answer choice that completes each statement Each correct selection is worth one point. 
Answer: 
QUESTION 240
You use a Windows 8.1 Pro computer. You turn on File History and install several applications.
The computer becomes slow and unresponsive.
You need to restore the computer to its default settings, You also need to keep your personal files stored on the computer.
What should you do?
A. Run Refresh your PC.
B. Run the Clear-Content PowerShell crndlet.
C. Restore files from File History.
D. Run Reset your PC. Answer: D
Explanation:
"turn on File History" - this is telling us that all files and folders that are added to a library are backed up.
This: "The computer becomes slow and unresponsive"
+ this: "You need to restore the computer to its default settings" - are telling us that we need to reinstall everything.
"keep your personal files stored on the computer" - since we have backed up everything that's stored in a library (a.k.a. "personal files"), we're good to go.
It's time to Reset your PC.
http://windows.microsoft.com/en-us/windows-8/restore-refresh-reset-pc 11
How to refresh, reset, or restore your PC
If you're having problems with your PC, you can try to refresh, reset, or restore it. Refreshing your PC reinstalls Windows and keeps your personal files and settings. It also keeps the apps that came with your PC and the apps you installed from the Windows Store. Resetting your PC reinstalls Windows but deletes your files, settings, and apps -- except for the apps that came with your PC. Restoring your PC is a way to undo recent system changes you've made. 
Further Information:
http://technet.microsoft.com/en-us/library/ee156808.aspx 12 Using the Clear-Content Cmdlet
The Clear-Content cmdlet enables you to erase the contents of a file without deleting the file itself.
For example, suppose you run this command:
Clear-Content c:scriptstest.txt
When you execute that command the file Test.txt will still be in the folder C:Scripts; there just won't be any data of any kind in the file:
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