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Q41. ic 1, VanArsdel, Ltd
Overview
VanArsdel, Ltd. builds skyscrapers, subways, and bridges. VanArsdel is a leader in using technology to do construction better.
Overview
VanArsdel employees are able to use their own mobile devices for work activities because the company recognizes that this usage enables employee productivity. Employees also access Software as a Service (SaaS) applications, including DocuSign, Dropbox, and Citrix. The company continues to evaluate and adopt more SaaS applications for its business. VanArsdel uses Azure Active Directory (AD) to authenticate its employees, as well as Multi-Factor Authentication (MFA). Management enjoys the ease with which MFA can be enabled and disabled for employees who use cloud-based services. VanArsdel's on-premises directory contains a single forest.
Helpdesk:
VanArsdel creates a helpdesk group to assist its employees. The company sends email messages to all its employees about the helpdesk group and how to contact it. Configuring employee access for SaaS applications is often a time-consuming task. It is not always obvious to the helpdesk group which users should be given access to which SaaS applications. The helpdesk group must respond to many phone calls and email messages to solve this problem, which takes up valuable time. The helpdesk group is unable to meet the needs of VanArsdel's employees.
However, many employees do not work with the helpdesk group to solve their access problems. Instead, these employees contact their co-workers or managers to find someone who can help them. Also, new employees are not always told to contact the helpdesk group for access problems. Some employees report that they cannot see all the applications in the Access Panel that they have access to. Some employees report that they must re-enter their passwords when they access cloud applications, even though they have already authenticated.
Bring your own device (BYOD):
VanArsdel wants to continue to support users and their mobile and personal devices, but the company is concerned about how to protect corporate assets that are stored on these devices. The company does not have a strategy to ensure that its data is removed from the devices when employees leave the company.
Customer Support
VanArsdel wants a mobile app for customer profile registration and feedback. The company would like to keep track of all its previous, current, and future customers worldwide. A profile system using third-party authentication is required as well as feedback and support sections for the mobile app.
Migration:
VanArsdel plans to migrate several virtual machine (VM) workloads into Azure. They also plan to extend their on-premises Active Directory into Azure for mobile app authentication.
Business Requirements Hybrid Solution:
✑ A single account and credentials for both on-premises and cloud applications
✑ Certain applications that are hosted both in Azure and on-site must be accessible to both VanArsdel employees and partners
✑ The service level agreement (SLA) for the solution requires an uptime of 99.9%
✑ The partners all use Hotmail.com email addresses
Mobile App:
VanArsdel requires a mobile app for project managers on construction job sites. The mobile app has the following requirements:
✑ The app must display partner information.
✑ The app must alert project managers when changes to the partner information occur.
✑ The app must display project information including an image gallery to view pictures of construction projects.
✑ Project managers must be able to access the information remotely and securely.
Security:
✑ VanArsdel must control access to its resources to ensure sensitive services and information are accessible only by authorized users and/or managed devices.
✑ Employees must be able to securely share data, based on corporate policies, with other VanArsdel employees and with partners who are located on construction job sites.
✑ VanArsdel management does NOT want to create and manage user accounts for partners.
Technical Requirements Architecture:
✑ VanArsdel requires a non-centralized stateless architecture fonts data and services where application, data, and computing power are at the logical extremes of the network.
✑ VanArsdel requires separation of CPU storage and SQL services
Data Storage:
VanArsdel needs a solution to reduce the number of operations on the contractor information table. Currently, data transfer rates are excessive, and queue length for read/write operations affects performance.
✑ A mobile service that is used to access contractor information must have automatically scalable, structured storage
✑ Images must be stored in an automatically scalable, unstructured form.
Mobile Apps:
✑ VanArsdel mobile app must authenticate employees to the company's Active Directory.
✑ Event-triggered alerts must be pushed to mobile apps by using a custom Node.js script.
✑ The customer support app should use an identity provider that is configured by using the Access Control Service for current profile registration and authentication.
✑ The customer support team will adopt future identity providers that are configured through Access Control Service.
Security:
✑ Active Directory Federated Server (AD FS) will be used to extend AD into Azure.
✑ Helpdesk administrators must have access to only the groups of Azure resources they are responsible for. Azure administration will be performed by a separate group.
✑ IT administrative overhead must be minimized.
✑ Permissions must be assigned by using Role Based Access Control (RBAC).
✑ Line of business applications must be accessed securely.
Q42. DRAG DROP - (Topic 1)
You need to recommend data storage mechanisms for the solution.
What should you recommend? To answer, drag the appropriate data storage mechanism to the correct information type. Each data storage mechanism may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
Explanation:
* use Table storage for Contractor information
* Use Blob for Project Images
* Scenario: VanArsdel needs a solution to reduce the number of operations on the contractor information table. Currently, data transfer rates are excessive, and queue length for read/write operations affects performance.
/ A mobile service that is used to access contractor information must have automatically scalable, structured storage
/ Images must be stored in an automatically scalable, unstructured form.
Note: Blob is an acronym for Binary Large object. Basically Blob is a sequence of bytes – just what an application needs. Blob can hold audio, video, email messages, archived files, zip files or a word processing document in a very general way.
Q43. - (Topic 2)
You need to configure the distribution tracking application. What should you do?
A. Map each role to a single upgrade domain to optimize resource utilization.
B. Design all services as stateless services.
C. Configure operations to queue when a role reaches its capacity.
D. Configure multiple worker roles to run on each virtual machine.
Answer: D
Explanation: * Scenario: distribution tracking application
The system is processor intensive and should be run in a multithreading environment.
Reference: Running multiple workers inside one Windows Azure Worker Role http://mark.mymonster.nl/2013/01/29/running-multiple-workers-inside-one-windows-azure-worker-role
Q44. HOTSPOT - (Topic 4)
The company has two corporate offices. Customers will access the websites from datacenters around the world.
You need to architect the global website strategy to meet the business requirements. Use the drop-down menus to select the answer choice that answers each question.
Answer:
Explanation:
* Scenario: The customer-facing website must have access to all ad copy and media.
Q45. - (Topic 8)
You need to support web and mobile application secure logons. Which technology should you use?
A. Azure Active Directory B2B
B. OAuth 1.0
C. LDAP
D. Azure Active Directory B2C
Answer: D
Q46. - (Topic 7)
You need to support loan processing for the WGBLoanMaster app. Which technology should you use?
A. Azure Storage Queues
B. Azure Service Fabric
C. Azure Service Bus Queues
D. Azure Event Hubs
Answer: D
Q47. - (Topic 4)
You need to select the appropriate solution for monitoring the .NET application. What should you recommend?
A. Visual Studio IntelliTrace
B. Application Insights
C. Data Factory
D. Microsoft Analytics Platform
Answer: D
Topic 5, Northwind traders
Background Overview
Northwind Electric Cars is the premier provider of private, low-cost transportation in Denver. Northwind drivers are company employees who work together as a team. The founding partners believe that by hiring their drivers as employees, their drivers focus on providing a great customer experience. Northwind Electric Cars has a reputation for offering fast, reliable, and friendly service, due largely to their extensive network of drivers and their proprietary dispatching software named NorthRide.
Northwind Electric Cars drivers depend on frequent, automatic updates for the NorthRide mobile app. The Northwind management team is concerned about unplanned system downtime and slow connection speeds caused by high usage. Additionally, Northwind's in- house data storage solution is unsustainable because of the new influx of customer data
that is retained. Data backups are made periodically on DVDs and stored on-premises at corporate headquarters.
Apps NorthRide App
Northwind drivers use the NorthRide app to meet customer pickup requests. The app uses
a GPS transponder in each Northwind vehicle and Bing Maps APIs to monitor the location of each vehicle in the fleet in real time. NorthRide allows Northwind dispatchers to optimize their driver coverage throughout the city.
When new customers call, the dispatcher enters their pickup locations into NorthRide. NorthRide identifies the closest available driver. The dispatcher then contacts the driver with the pick-up details. This process usually results in a pick-up time that is far faster than the industry average.
Drivers use NorthRide to track the number of miles they drive and the number of customers they transport. Drivers also track their progress towards their established goals, which are measured by using key performance indicators (KPIs).
NorthRide App 2.0
Northwind Electric Cars is growing quickly. New callers often wait for their calls to be answered because the dispatchers are contacting their drivers to arrange pickups for other customers.
To support the growth of the business, Northwind's development team completes an overhaul of the NorthRide system that it has named NorthRide 2.0. When a dispatcher enters a customer's pickup location, the address and driving directions are automatically sent to the driver who is closest to the customer's pickup location.
Drivers indicate their availability on the NorthRide mobile app and can view progress towards their KPI's in real time. Drivers can also record customer ratings and feedback for each pickup.
Business Requirements Apps
NorthRideFinder App
Northwind Electric Cars needs a customer-facing website and mobile app that allows customers to schedule pickups. Customers should also be able to create profiles that will help ensure the customer gets a ride faster by storing customer information.
Predictor App
Northwind Electric Cars needs a new solution named Predictor. Predictor is an employee- facing mobile app. The app predicts periods of high usage and popular pickup locations and provides various ways to view this predictive data. Northwind uses this information to
better distribute its drivers. Northwind wants to use the latest Azure technology to create this solution.
Other Requirements
✑ On-premises data must be constantly backed up.
✑ Mobile data must be protected from loss, even if connectivity with the backend is lost.
✑ Dispatch offices need to have seamless access to both their primary data center and the applications and services that are hosted in the Azure cloud.
✑ Connectivity needs to be redundant to on-premises and cloud services, while providing a way for each dispatch office to continue to operate even if one or all of the connection options fail.
✑ The management team requires that operational data is accessible 24/7 from any office location.
Technical Requirements Apps and Website
NorthRide / NorthRideFinder Apps:
✑ The solution must support on-premises and Azure data storage.
✑ The solution must scale as necessary based on the current number of concurrent users.
✑ Customer pickup requests from NorthRideFinder must be asynchronous.
✑ The customer pickup request system will be high in volume, and each request will have a short life span.
✑ Data for NorthRideFinder must be protected during a loss of connectivity.
✑ NorthRide users must authenticate to the company's Azure Active Directory.
Northwind Public Website
✑ The customer website must use a WebJob to process profile images into thumbnails
✑ The customer website must be developed with lowest cost and difficulty in mind.
✑ The customer website must automatically scale to minimize response times for customers.
Other Requirements Data Storage:
✑ The data storage must interface with an on-premises Microsoft SQL backend database.
✑ A disaster recovery system needs to be in place for large amounts of data that will backup to Azure.
✑ Backups must be fully automated and managed the Azure Management Portal.
✑ The recovery system for company data must use a hybrid solution to back up both the on-premises Microsoft SQL backend and any Azure storage.
Predictive Routing:
✑ An Azure solution must be used for prediction systems.
✑ Predictive analytics must be published as a web service and accessible by using the REST API.
Security:
✑ The NorthRide app must use an additional level of authentication other than the employee's password.
✑ Access must be secured in NorthRide without opening a firewall port.
✑ Company policy prohibits inbound connections from internet callers to the on- premises network.
✑ Customer usernames in NorthRideFinder cannot exceed 10 characters.
✑ Customer data in NorthRideFinder can be received only by the user ID that is associated with the data.
Q48. HOTSPOT - (Topic 4)
You need to recommend strategies for storing data.
Which services should you recommend? To answer, select the appropriate storage technology for each data type in the answer area.
Answer:
Explanation:
* Media metadata: Azure Queue Storage Service
Scenario: Media metadata must be stored in Azure Table storage.
Azure Queues provide a uniform and consistent programming model across queues, tables, and BLOBs – both for developers and for operations teams.
* Images: Azure Mobile Services
Scenario: Media files must be stored in Azure BLOB storage.
You can use Azure Mobile Services to access images from mobile devices.
* Audio: Azure Media Services
* Video: Azure Media Services
Microsoft Azure Media Services is an extensible cloud-based platform that enables developers to build scalable media management and delivery applications. Media Services is based on REST APIs that enable you to securely upload, store, encode and package video or audio content for both on-demand and live streaming delivery to various clients (for example, TV, PC, and mobile devices).
Q49. DRAG DROP - (Topic 6)
You have a web application on Azure.
The web application does not employ Secure Sockets Layer (SSL).
You need to enable SSL for your production deployment web application on Azure. 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:
Q50. - (Topic 6)
You are designing an Azure application that stores data.
You have the following requirements:
✑ The data storage system must support storing more than 500 GB of data.
✑ Data retrieval must be possible from a large number of parallel threads.
✑ Threads must not block each other.
You need to recommend an approach for storing data. What should you recommend?
A. Azure Notification Hubs
B. A single SQL database in Azure
C. Azure Queue storage
D. Azure Table storage
Answer: D
Explanation: * Azure Table Storage can be useful for applications that must store large amounts of nonrelational data, and need additional structure for that data. Tables offer key- based access to unschematized data at a low cost for applications with simplified data- access patterns. While Azure Table Storage stores structured data without schemas, it does not provide any way to represent relationships between the data.
* As a solution architect/developer, consider using Azure Table Storage when:
/ Your application stores and retrieves large data sets and does not have complex relationships that require server-side joins, secondary indexes, or complex server-side logic.
/ You need to achieve a high level of scaling without having to manually shard your dataset.
Reference: Azure Table Storage and Windows Azure SQL Database - Compared and Contrasted
https://msdn.microsoft.com/en-us/library/azure/jj553018.aspx