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AZ-500: Azure Security Case Study: Group Membership Analysis at Contoso

Explore the membership details of Group1 and Group2 at Contoso in this Azure security case study. Understand the dynamic user rules and who qualifies for these groups in the cloud-based organization.

Question

Case Study
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Overview
Contoso, Ltd. is a consulting company that has a main office in Montreal and two branch offices in Seattle and New York.
The company hosts its entire server infrastructure in Azure.
Contoso has two Azure subscriptions named Sub1 and Sub2. Both subscriptions are associated to an Azure Active Directory (Azure AD) tenant named contoso.com.

Existing Environment

Azure AD
Contoso.com contains the users shown in the following table.

Name City Role
User1 Montreal Global administrator
User2 MONTREAL Security administrator
User3 London Privileged role administrator
User4 Ontario Application administrator
User5 Seattle Cloud application administrator
User6 Seattle User administrator
User7 Sydney Reports reader
User8 Sydney None
User9 Sydney Owner

Contoso.com contains the security groups shown in the following table.

Name Membership type Dynamic membership rule
Group1 Dynamic user user.city -contain “ON”
Group2 Dynamic user user.city -match “*on”

Sub1
Sub1 contains six resource groups named RG1, RG2, RG3, RG4, RG5, and RG6.
User9 creates the virtual networks shown in the following table.

Name Resource group
VNET1 RG1
VNET2 RG2
VNET3 RG3
VNET4 RG4

Sub1 contains the locks shown in the following table.

Name Set on Lock type
Lock1 RG1 Delete
Lock2 RG2 Read-only
Lock3 RG3 Delete
Lock4 RG4 Read-only

Sub1 contains the Azure policies shown in the following table.

Policy definition Resource type Scope
Allowed resource types networkSecurityGroups RG4
Not allowed resource types virtualNetworks/subnets RG5
Not allowed resource types networkSecurityGroups RG5
Not allowed resource types virtualNetworks/virtualNetworkPeerings RG6

Sub2
Sub2 contains the virtual networks shown in the following table.

Name Subnet
VNetwork1 Subnet11, Subnet12, and Subnet13
VNetwork2 Subnet21

Sub2 contains the virtual machines shown in the following table.

Name Network interface Application security group Connected to
VM1 NIC1 ASG1 Subnet11
VM2 NIC2 ASG2 Subnet11
VM3 NIC3 None Subnet12
VM4 NIC4 ASG1 Subnet13
VM5 NIC5 None Subnet21

All virtual machines have public IP addresses and the Web Server (IIS) role installed. The firewalls for each virtual machine allow ping requests and web requests.
Sub2 contains the network security groups (NSGs) shown in the following table.

Name Associated to
NSG1 NIC2
NSG2 Subnet11
NSG3 Subnet13
NSG4 Subnet21

NSG1 has the inbound security rules shown in the following table.

Priority Port Protocol Source Destination Action
65000 Any Any VirtualNetwork VirtualNetwork Allow
65001 Any Any AzureLoadBalancer Any Allow
65500 Any Any Any Any Deny

NSG2 has the inbound security rules shown in the following table.

Priority Port Protocol Source Destination Action
100 80 TCP Internet VirtualNetwork Allow
65000 Any Any VirtualNetwork VirtualNetwork Allow
65001 Any Any AzureLoadBalancer Any Allow
65500 Any Any Any Any Deny

NSG3 has the inbound security rules shown in the following table.

Priority Port Protocol Source Destination Action
100 Any TCP ASG1 ASG1 Allow
150 Any Any ASG2 VirtualNetwork Allow
200 Any Any Any Any Deny
65000 Any Any VirtualNetwork VirtualNetwork Allow
65001 Any Any AzureLoadBalancer Any Allow
65500 Any Any Any Any Deny

NSG4 has the inbound security rules shown in the following table.

Priority Port Protocol Source Destination Action
100 Any Any Any Any Allow
65000 Any Any VirtualNetwork VirtualNetwork Allow
65001 Any Any AzureLoadBalancer Any Allow
65500 Any Any Any Any Deny

NSG1, NSG2, NSG3, and NSG4 have the outbound security rules shown in the following table.

Priority Port Protocol Source Destination Action
65000 Any Any VirtualNetwork VirtualNetwork Allow
65001 Any Any Any Internet Allow
65500 Any Any Any Any Deny

Technical Requirements

Contoso identifies the following technical requirements:

  • Deploy Azure Firewall to VNetwork1 in Sub2.
  • Register an application named App2 in contoso.com.
  • Whenever possible, use the principle of least privilege.
  • Enable Azure AD Privileged Identity Management (PIM) for contoso.com.

HOTSPOT –
What is the membership of Group1 and Group2? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Group1:

  • No members
  • Only User2
  • Only User2 and User4
  • User1, User2, User3, and User4

Group2:

  • No members
  • Only User3
  • Only User1 and User3
  • User1, User2, User3, and User4

Answer

Group1: User1, User2, User3, and User4

Group2: Only User3

Explanation

Box 1: User1, User2, User3, User4
Contains “ON” is true for Montreal (User1), MONTREAL (User2), London (User 3), and Ontario (User4) as string and regex operations are not case sensitive.

Box 2: Only User3 –
Match “*on” is only true for London (User3) as “London” is the only word that ends with “on”.
Scenario:
Contoso.com contains the users shown in the following table.

Name City Role
User1 Montreal Global administrator
User2 MONTREAL Security administrator
User3 London Privileged role administrator
User4 Ontario Application administrator
User5 Seattle Cloud application administrator
User6 Seattle User administrator
User7 Sydney Reports reader
User8 Sydney None

Contoso.com contains the security groups shown in the following table.

Name Membership type Dynamic membership rule
Group1 Dynamic user user.city -contain “ON”
Group2 Dynamic user user.city -match “*on”

Reference

The latest Microsoft AZ-500 Azure Security Technologies certification actual real practice exam question and answer (Q&A) dumps are available free, which are helpful for you to pass the Microsoft AZ-500 Azure Security Technologies exam and earn Microsoft AZ-500 Azure Security Technologies certification.

AZ-500 Microsoft Azure Security Technologies Exam Questions and Answers

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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