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NEW QUESTION: 1
With REST API, which standard HTTP header tells a server which media type is expected by the client?
A. Content-Type: application/json; charset=utf-8
B. Accept-Patch: text/example; charset=utf-8
C. Accept: application/json
D. Accept-Encoding: gzip. deflate
Answer: C
Explanation:
Explanation
Accept header is a way for a client to specify the media type of the response content it is expecting and Content-type is a way to specify the media type of request being sent from the client to the server.
http://www.java-allan
dsundry.com/2012/08/accept-header-vs-content-type-header.html#:~:text=Accept%20and%20Content%2Dtype%
NEW QUESTION: 2
A security administrator is notified that users attached to a particular switch are having intermittent connectivity issues. Upon further research, the administrator finds evidence of an ARP spoofing attack. Which of the following could be utilized to provide protection from this type of attack?
A. Configure 802.1x authentication on the switch.
B. Configure MAC filtering on the switch.
C. Configure loop protection on the switch.
D. Configure flood guards on the switch.
Answer: D
Explanation:
ARP spoofing is a type of attack in which a malicious actor sends falsified ARP (Address Resolution Protocol) messages over a local area network. This results in the linking of an attacker's MAC address with the IP address of a legitimate computer or server on the network. Once the attacker's MAC address is connected to an authentic IP address, the attacker will begin receiving any data that is intended for that IP address. ARP spoofing can enable malicious parties to intercept, modify or even stop data in-transit. ARP spoofing attacks can only occur on local area networks that utilize the Address Resolution Protocol. To perform ARP spoofing the attacker floods the network with spoofed ARP packets. As other hosts on the LAN cache the spoofed ARP packets, data that those hosts send to the victim will go to the attacker instead. From here, the attacker can steal data or launch a more sophisticated follow-up attack.
A flood guard configured on the network switch will block the flood of spoofed ARP packets.
NEW QUESTION: 3
HOTSPOT
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).
References: https://azure.microsoft.com/en-us/documentation/articles/media-services- overview/
Topic 5, Northwind Electric Cars
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.