AZ-900 Question #18: Real Exam Question with Answer & Explanation

The correct answer is A: network security groups (NSGs). A network security group works like a firewall. You can attach a network security group to a virtual network and/or individual subnets within the virtual network. You can also attach a network security group to a network interface assigned to a virtual machine. You can use multip

Submitted by andres_qro· Mar 5, 2026Describe Azure architecture and services

Question

Your company plans to deploy several web servers and several database servers to Azure. You need to recommend an Azure solution to limit the types of connections from the web servers to the database servers. What should you include in the recommendation?

Options

Anetwork security groups (NSGs)
BAzure Service Bus
Ca local network gateway
Da route filter

Explanation

A network security group works like a firewall. You can attach a network security group to a virtual network and/or individual subnets within the virtual network. You can also attach a network security group to a network interface assigned to a virtual machine. You can use multiple network security groups within a virtual network to restrict traffic between resources such as virtual machines and subnets. You can filter network traffic to and from Azure resources in an Azure virtual network with a network security group. A network security group contains security rules that allow or deny inbound network traffic to, or outbound network traffic from, several types of Azure resources. https://docs.microsoft.com/en-us/azure/virtual-network/security-overview

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