Free Microsoft AZ-700 Practice Exam with Questions & Answers | Set: 5

Here are the steps and explanations for configuring VNET1 to log all events and metrics and query them by using KQL:

To enable logging for VNET1, you need to create a diagnostic setting that collects the platform metrics and logs from the virtual network and routes them to one or more destinations. You can choose to send the data to a Log Analytics workspace, a storage account, an event hub, or a partner solution1.

To create a diagnostic setting, you need to go to the Azure portal and select your virtual network. Then select Diagnostic settings under Monitoring and select + Add diagnostic setting1.

On the Add diagnostic setting page, enter or select the following information:

Diagnostic setting name: Type a unique name for your diagnostic setting.

Destination details: Select the destination where you want to send the data. For example, you can select Send to Log Analytics workspace and choose your workspace from the list.

Log: Select the categories of logs that you want to collect. For VNET1, you can select NetworkSecurityGroupEvent and NetworkSecurityGroupRuleCounter as the log categories2.

Metric: Select AllMetrics to collect all the platform metrics for VNET12.

Select Save to create your diagnostic setting1.

To query the events and metrics from the Azure portal by using KQL, you need to go to the Log Analytics workspace that you selected as the destination. Then select Logs under General and enter your KQL query in the query editor3.

For example, you can use the following KQL query to get the top 10 network security group events for VNET1 in the last 24 hours:

NetworkSecurityGroupEvent

| where TimeGenerated > ago(24h)

| where ResourceId contains "VNET1"

| summarize count() by EventID

| top 10 by count_

Copy

Select Run to execute your query and view the results in a table or a chart3.

To ensure that the owner of VNET3 receives an alert whenever an administrative operation is performed on the virtual network, you can set up an Activity Log Alert in Azure Monitor. Here’s how you can do it:

Step-by-Step Solution

Step 1: Create an Activity Log Alert

Navigate to the Azure Portal.

Search for “Monitor” and select it.

In the Monitor blade, select “Alerts” from the left-hand menu.

Click on “New alert rule”.

Step 2: Configure the Alert Rule

Select the Scope:

Click on “Select resource”.

Choose “Virtual Network” as the resource type.

Select VNET3 from the list of virtual networks.

Define the Condition:

Click on “Add condition”.

In the “Signal type” dropdown, select “Activity Log”.

Choose “Administrative” as the category.

Select the specific operations you want to monitor (e.g., Microsoft.Network/virtualNetworks/write for any write operations on the virtual network).

Set the Alert Details:

Enter a name for the alert rule (e.g., VNET3 Admin Operations Alert).

Provide a description if needed.

Configure the Action Group:

Click on “Add action group”.

Enter a name for the action group.

Select the action type (e.g., Email/SMS/Push/Voice).

Enter the details of the recipient (e.g., the email address of the owner of VNET3).

Review and Create:

Review the alert rule settings.

Click on “Create alert rule”.

Explanation

Activity Log Alerts: These alerts notify you when specific operations are performed on your Azure resources. By setting up an alert for administrative operations, you ensure that any changes to VNET3 are promptly reported.

Action Groups: These define the actions to take when an alert is triggered. You can configure notifications via email, SMS, or other methods to ensure the owner of VNET3 is informed immediately.

Administrative Operations: Monitoring these operations helps in tracking changes and maintaining the security and integrity of your virtual network.

By following these steps, you can ensure that the owner of VNET3 receives timely alerts for any administrative operations performed on the virtual network, helping to maintain oversight and security.

To deploy a firewall to subnetl-2, you need to create a network virtual appliance (NVA) in the same virtual network as subnetl-2. An NVA is a virtual machine that performs network functions, such as firewall, routing, or load balancing1.

To create an NVA, you need to create a virtual machine in the Azure portal and select an image that has the firewall software installed. You can choose from the Azure Marketplace or upload your own image2.

To assign the IP address of 10.1.2.4 to the NVA, you need to create a static private IP address for the network interface of the virtual machine. You can do this in the IP configurations settings of the network interface3.

To ensure that traffic from subnetl-1 to the IP address range of 192.168.10.0/24 is routed through the NVA, you need to create a user-defined route (UDR) table and associate it with subnetl-1. A UDR table allows you to override the default routing behavior of Azure and specify custom routes for your subnets4.

To create a UDR table, you need to go to the Route tables service in the Azure portal and select + Create. You can give a name and a resource group for the route table5.

To create a custom route, you need to select Routes in the route table and select + Add. You can enter the following information for the route5:

Destination: 192.168.10.0/24

Next hop type: Virtual appliance

Next hop address: 10.1.2.4

To associate the route table with subnetl-1, you need to select Subnets in the route table and select + Associate. You can select the virtual network and subnet that you want to associate with the route table5.

Here are the steps and explanations for ensuring that all hosts deployed to subnet3-2 connect to the internet by using the same static public IP address:

To use the same static public IP address for multiple hosts, you need to create a NAT gateway and associate it with subnet3-2. A NAT gateway is a resource that performs network address translation (NAT) for outbound traffic from a subnet1. It allows you to use a single public IP address for multiple private IP addresses2.

To create a NAT gateway, you need to go to the Azure portal and select Create a resource. Search for NAT gateway, select NAT gateway, then select Create3.

On the Create a NAT gateway page, enter or select the following information and accept the defaults for the remaining settings:

Subscription: Select your subscription name

Resource group: Select your resource group

Name: Type a unique name for your NAT gateway

Region: Select the same region as your virtual network

Public IP address: Select Create new and type a name for your public IP address. Select Standard as the SKU and Static as the assignment method4.

Select Review + create and then select Create to create your NAT gateway3.

To associate the NAT gateway with subnet3-2, you need to go to the Virtual networks service in the Azure portal and select your virtual network.

On the Virtual network page, select Subnets under Settings, and then select subnet3-2 from the list.

On the Edit subnet page, under NAT gateway, select your NAT gateway from the drop-down list. Then select Save.

To ensure that all traffic to the internet from subnet3-1 is forwarded to the appliance in subnet3-2 for packet inspection, you can use User-Defined Routes (UDRs) to direct the traffic. Here’s how you can do it:

Navigate to the Azure Portal.

Search for “Route tables” and select it.

Click on “Create”.

Enter the following details:

Subscription: Select your subscription.

Resource Group: Select an existing resource group or create a new one.

Name: Enter a name for the route table (e.g., RouteTable-Subnet3-1).

Region: Select the region where your virtual network is located.

Click on “Review + create” and then “Create”.

Navigate to the newly created route table.

Select “Routes” from the left-hand menu.

Click on “Add” to create a new route.

Enter the following details:

Route name: Enter a name for the route (e.g., RouteToAppliance).

Address prefix: Enter 0.0.0.0/0 to route all internet traffic.

Next hop type: Select Virtual appliance.

Next hop address: Enter the IP address of the appliance (10.3.2.100).

Click on “OK” to add the route.

Navigate to the route table.

Select “Subnets” from the left-hand menu.

Click on “Associate”.

Select the virtual network that contains subnet3-1.

Select subnet3-1 from the list of subnets.

Click on “OK”.

User-Defined Routes (UDRs): These allow you to control the routing of traffic within your virtual network. By defining a route that directs all internet-bound traffic to the appliance, you ensure that the traffic is inspected before it reaches the internet1.

Virtual Appliance: This is a network appliance that performs specific functions, such as packet inspection, and is treated as a next hop in the routing table2.

Route Table Association: Associating the route table with subnet3-1 ensures that all traffic from this subnet follows the defined routes.

Step-by-Step SolutionStep 1: Create a Route TableStep 2: Add a Route to the Route TableStep 3: Associate the Route Table with Subnet3-1ExplanationBy following these steps, you can ensure that all internet-bound traffic from subnet3-1 is forwarded to the appliance in subnet3-2 for inspection, thereby enhancing your network security.