###BeginCaseStudy###
Case Study: 1
Web-based Solution
Background
You are developing a web-based solution that students and teachers can use to collaborate on
written assignments. Teachers can also use the solution to detect potential plagiarism, and
they can manage assignments and data by using locally accessible network shares.
Business Requirements
The solution consists of three parts: a website where students work on assignments and where
teachers view and grade assignments, the plagiarism detection service, and a connector
service to manage data by using a network share.
The system availability agreement states that operating hours are weekdays between midnight
on Sunday and midnight on Friday.
Plagiarism Service
The plagiarism detection portion of the solution compares a new work against a repository of
existing works. The initial dataset contains a large database of existing works. Teachers
upload additional works. In addition, the service itself searches for other works and adds
those works to the repository.
Technical Requirements
Website
The website for the solution must run on an Azure web role.
Plagiarism Service
The plagiarism detection service runs on an Azure worker role. The computation uses a
random number generator. Certain values can result in an infinite loop, so if a particular work
item takes longer than one hour to process, other instances of the service must be able to
process the work item. The Azure worker role must fully utilize all available CPU cores.
Computation results are cached in local storage resources to reduce computation time.
Repository of Existing Works
The plagiarism detection service works by comparing student submissions against a
repository of existing works by using a custom matching algorithm. The master copies of the
works are stored in Azure blob storage. A daily process synchronizes files between blob
storage and a file share on a virtual machine (VM). As part of this synchronization, the
ExistingWorkRepository object adds the files to Azure Cache to improve the display
performance of the website. If a student’s submission is overdue, the Late property is set to
the number of days that the work is overdue. Work files can be downloaded by using the
Work action of the TeacherController object
Network Connector
Clients can interact with files that are stored on the VM by using a network share. The
network permissions are configured in a startup task in the plagiarism detection service.
Service Monitoring
The CPU of the system on which the plagiarism detection service runs usually limits the
plagiarism detection service. However, certain combinations of input can cause memory
issues, which results in decreased performance. The average time for a given computation is
45 seconds. Unexpected results during computations might cause a memory dump. Memory
dump files are stored in the Windows temporary folder on the VM that hosts the worker role.
Security
Only valid users of the solution must be able to view content that users submit. Privacy
regulations require that all content that users submit must be retained only in Azure Storage.
All documents that students upload must be signed by using a certificate named DocCert that
is installed in both the worker role and the web role.
Solution Development
You use Microsoft Visual Studio 2013 and the Azure emulator to develop and test both the
compute component and the storage component. New versions of the solution must undergo
testing by using production data.
Scaling
During non operating hours, the plagiarism detection service should not use more than 40
CPU cores. During operating hours, the plagiarism detection service should automatically
scale when 500 work items are waiting to be processed. To facilitate maintenance of the
system, no plagiarism detection work should occur during non operating hours. All ASP.NET
MVC actions must support files that are up to 2 GB in size.
Biographical Information
Biographical information about students and teachers is stored in a Microsoft Azure SQL
database. All services run in the US West region. The plagiarism detection service runs on
Extra Large instances.
Solution Structure
Relevant portions of the solution files are shown in the following code segments. Line
numbers in the code segments are included for reference only and include a two character
prefix that denotes the specific file to which the line belongs.
###EndCaseStudy###
You are deploying the web based solution in the West Europe region.
You need to copy the repository of existing works that the plagiarism detection service uses. You must achieve
this goal by using the least amount of time.
What should you do?
A.
Copy the files from the source file share to a local hard disk. Ship the hard disk to the West Europe data
center by using the Azure Import/Export service.
B.
Create an Azure virtual network to connect to the West Europe region. Then use Robocopy to copy the files
from the current region to the West Europe region.
C.
Provide access to the blobs by using the Microsoft Azure Content Delivery Network (CDN). Modify the
plagiarism detection service so that the files from the repository are loaded from the CDN.
D.
Use the Asynchronous Blob Copy API to copy the blobs from the source storage account to a storage account
in the West Europe region.
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New 70-532 Exam Questions and Answers Updated Recently (15/Aug/2017):
NEW QUESTION 174
Which of the following is not true about metadata? (Choose two.)
A. Both containers and blobs have writable system properties.
B. Blob user-defined metadata is accessed as a key value pair.
C. System metadata can influence how the blog is stored and accessed in Azure Storage.
D. Only blobs have metadata; containers do not.
Answer: AD
NEW QUESTION 175
Which of the following are true regarding supported operations granted with an SAS token? (Choose three.)
A. You can grant read access to existing blobs.
B. You can create new blob containers.
C. You can add, update, and delete queue messages.
D. You can add, update, and delete table entities.
E. You can query table entities.
Answer: ACDE
NEW QUESTION 176
You administer an Azure subscription for your company. You have an application that updates text files frequently. The text files will not exceed 20 gigabytes (GB) in size. Each write operation must not exceed 4 megabytes (MB). You need to allocate storage in Azure for the application. Which three storage types will achieve the goal? (Each correct answer presents a complete solution. Choose three.)
A. page blob
B. queue
C. append blob
D. block blob
E. file share
Answer: ACD
NEW QUESTION 177
You administer an Access Control Service namespace named ContosoACS that is used by a web application. ContosoACS currently utilizes Microsoft and Yahoo accounts. Several users in your organization have Google accounts and would like to access the web application through ContosoACS. You need to allow users to access the application by using their Google accounts. What should you do?
A. Register the application directly with Google.
B. Edit the existing Microsoft Account identity provider and update the realm to include Google.
C. Add a new Google identity provider.
D. Add a new WS-Federation identity provider and configure the WS-Federation metadata to point to the Google sign-in URL.
Answer: C
Explanation:
Configuring Google as an identity provider eliminates the need to create and manage authentication and identity management mechanism. It helps the end user experience if there are familiar authentication procedures.
NEW QUESTION 178
Which of the following are valid options for processing queue messages? (Choose two.)
A. A single compute instance can process only one message at a time.
B. A single compute instance can process up to 31 messages at a time.
C. A single compute instance can retrieve up to 32 messages at a time.
D. Messages can be read one at a time or in batches of up to 32 messages at a time.
E. Messages are deleted as soon as they are read.
Answer: CD
NEW QUESTION 179
Which of the following statements are true of stored access policies? (Choose two.)
A. You can modify the start or expiration date for access.
B. You can revoke access at any point in time.
C. You can modify permissions to remove or add supported operations.
D. You can add to the list of resources accessible by an SAS token.
Answer: ABC
NEW QUESTION 180
How should you choose a good partition key for a Table storage implementation? (Choose two.)
A. They should always be unique, like a primary key in a SQL table.
B. You should always use the same partition key for all records.
C. Think about how you’re likely to update the data using batch transactions.
D. Find an even way to split them so that you have relatively even partition sizes.
Answer: CD
NEW QUESTION 181
Which of the following is not a method for replicating a Table storage account?
A. Transactional replication
B. Zone redundant storage
C. Read access geo-redundant storage
D. Geo-redundant storage
Answer: A
NEW QUESTION 182
You manage an on-premises monitoring platform. You plan to deploy virtual machines (VMs) in Azure. You must use existing on-premises monitoring solutions for Azure VMs. You must maximize security for any communication between Azure and the on-premises environment. You need to ensure that Azure alerts are sent to the on-premises solution. What should you do?
A. Enable App Service Authentication for the VMs.
B. Configure a basic authorization webhook.
C. Deploy an HDInsight cluster.
D. Configure a token-based authorization webhook.
Answer: D
NEW QUESTION 183
A company Chef Information Officer (CIO) who wants to ensure rapid elasticity for the company’s cloud solution would MOST likely choose which of the following types of cloud?
A. Public cloud
B. Private community cloud
C. Private cloud
D. Community cloud
Answer: C
Explanation:
Rapid elasticity is a cloud computing term for scalable provisioning, or the ability to provide scalable services. Software that can scale in a private cloud faces two security related issues:
– Although the private cloud infrastructure can enable rapid elasticity in the supply of virtual resources, hosted applications and services must be designed correctly if they are to function securely when they are scaled out.
– Hosted applications and services that initiate scaling requests automatically based on monitored demand or a timetable must perform these operations without impacting their own or other services availability within the cloud.
NEW QUESTION 184
Which of the following statements are correct for submitting operations in a batch? (Choose three.)
A. All operations have to be in the same partition.
B. Total batch size can’t be greater than 4MB.
C. Max operation count is 100.
D. Minimum operation count is three.
Answer: ABC
NEW QUESTION 185
Which of the following statements are true of CORS support for storage? (Choose two.)
A. It is recommended you enable CORS so that browsers can access blobs.
B. To protect CORS access to blobs from the browser, you should generate SAS tokens to secure blob requests.
C. CORS is supported only for Blob storage.
D. CORS is disabled by default.
Answer: BD
NEW QUESTION 186
Which of the following is not a requirement for creating an online secondary for SQL Database?
A. The secondary database must have the same name as the primary.
B. They must be on separate servers.
C. They both must be on the different subscription.
D. The secondary server cannot be a lower performance tier than the primary.
Answer: D
NEW QUESTION 187
You have an existing classic virtual network. You need to export the virtual network settings to an XML file to make modifications. Which Azure PowerShell cmdlet should you use?
A. Get-AzureVNetSite
B. Get-AzureVNetConnection
C. Get-AzureVNetGateway
D. Get-AzureVNetConfig
Answer: D
NEW QUESTION 188
Which statement is true of Storage Analytics Metrics?
A. Capacity metrics are recorded only for blobs.
B. You can set hourly or by minute metrics through the management portal.
C. By default, metrics are retained for one year.
D. If you disable metrics, existing metrics are deleted from storage.
Answer: A
NEW QUESTION 189
Which metrics should you add to monitoring that will help you select the appropriate level of SQL Database? (Choose three.)
A. CPU Processor Count
B. CPU Percentage
C. Physical Data Reads Percentage
D. Log Writes Percentage
Answer: BCD
NEW QUESTION 190
You are migrating a local virtual machine (VM) to an Azure VM. You upload the virtual hard disk (VHD) file to Azure Blob storage as a Block Blob. You need to change the Block blob to a page blob. What should you do?
A. Delete the Block Blob and re-upload the VHD as a page blob.
B. Update the type of the blob programmatically by using the Azure Storage .NET SDK.
C. Update the metadata of the current blob and set the Blob-Type key to Page.
D. Create a new empty page blob and use the Azure Blob Copy Power Shell cmdlet to copy the current data to the new blob.
Answer: A
Explanation:
* To copy the data files to Windows Azure Storage by using one of the following methods: AzCopy Tool, Put Blob (REST API) and Put Page (REST API), or Windows Azure Storage Client Library for .NET or a third-party storage explorer tool. Important: When using this new enhancement, always make sure that you create a page blob not a block blob.
* Azure has two main files storage format:
– Page blob: mainly used for vhd’s (CloudPageBlob)
– Block Blob: for other files (CloudBlockBlob)
NEW QUESTION 191
……
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