This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
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Overview -
Contoso, Ltd. is a manufacturing company that has offices worldwide. Contoso works with partner organizations to bring products to market.
Contoso products are manufactured by using blueprint files that the company authors and maintains.
Existing Environment -
Currently, Contoso uses multiple types of servers for business operations, including the following:
File servers
Domain controllers
Microsoft SQL Server servers
Your network contains an Active Directory forest named contoso.com. All servers and client computers are joined to Active Directory.
You have a public-facing application named App1. App1 is comprised of the following three tiers:
A SQL database
A web front end
A processing middle tier
Each tier is comprised of five virtual machines. Users access the web front end by using HTTPS only.
Requirements -
Planned Changes -
Contoso plans to implement the following changes to the infrastructure:
Move all the tiers of App1 to Azure.
Move the existing product blueprint files to Azure Blob storage.
Create a hybrid directory to support an upcoming Microsoft Office 365 migration project.
Technical Requirements -
Contoso must meet the following technical requirements:
Move all the virtual machines for App1 to Azure.
Minimize the number of open ports between the App1 tiers.
Ensure that all the virtual machines for App1 are protected by backups.
Copy the blueprint files to Azure over the Internet.
Ensure that the blueprint files are stored in the archive storage tier.
Ensure that partner access to the blueprint files is secured and temporary.
Prevent user passwords or hashes of passwords from being stored in Azure.
Use unmanaged standard storage for the hard disks of the virtual machines.
Ensure that when users join devices to Azure Active Directory (Azure AD), the users use a mobile phone to verify their identity.
Minimize administrative effort whenever possible.
User Requirements -
Contoso identifies the following requirements for users:
Ensure that only users who are part of a group named Pilot can join devices to Azure AD.
Designate a new user named Admin1 as the service administrator of the Azure subscription.
Admin1 must receive email alerts regarding service outages.
Ensure that a new user named User3 can create network objects for the Azure subscription.
You are planning the move of App1 to Azure.
You create a network security group (NSG).
You need to recommend a solution to provide users with access to App1.
What should you recommend?
Introductory Info
Question
Click on the arrows to vote for the correct answer
A. B. C. D.C
As App1 is public-facing we need an incoming security rule, related to the access of the web servers.
Scenario: You have a public-facing application named App1. App1 is comprised of the following three tiers: a SQL database, a web front end, and a processing middle tier.
Each tier is comprised of five virtual machines. Users access the web front end by using HTTPS only.
The recommended solution to provide users with access to App1 after moving it to Azure depends on the technical requirements and the existing architecture of App1.
The technical requirements state that the number of open ports between the App1 tiers should be minimized, and all virtual machines for App1 should be protected by backups. Also, users access the web front end using HTTPS only.
The existing architecture of App1 consists of three tiers: a SQL database, a web front end, and a processing middle tier, with each tier comprised of five virtual machines.
Based on these requirements, the recommended solution is to create an incoming security rule for port 443 from the Internet and associate the NSG to the subnet that contains the web servers (Option C).
This option allows users to access the web front end using HTTPS, which uses port 443. By creating an incoming security rule for port 443, traffic is only allowed into the subnet that contains the web servers, thereby minimizing the number of open ports between the App1 tiers. This also ensures that the virtual machines for App1 are protected by backups.
Creating an outgoing security rule for port 443 (Options A and D) is not recommended because it allows traffic to leave the subnet, which may compromise security. Associating the NSG to all the subnets (Options A and B) may also create unnecessary overhead and complexity, which does not align with the goal of minimizing administrative effort whenever possible.
In summary, Option C is the recommended solution to provide users with access to App1 after moving it to Azure, as it aligns with the technical requirements and the existing architecture of App1.