Azure Networking Interview Questions
Azure Networking Interview Questions
Azure Networking Interview Questions
Sure! Azure networking interview questions typically cover topics such as virtual networks, subnets, routing, load balancing, network security groups, VPN gateways, and Azure ExpressRoute. Interviewers may ask about your experience in configuring and managing Azure networking resources, troubleshooting network connectivity issues, ensuring secure communication between resources, optimizing network performance, and designing scalable and reliable network architectures in Azure. It's important to be well-versed in Azure networking concepts and practices to succeed in an Azure networking interview.
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1 - What is Azure Virtual Network?
Azure Virtual Network is a service that enables communication and connectivity between Azure resources, on premises resources, and the internet securely. It provides isolation and segmentation of resources within an Azure subscription, allowing users to create multiple subnets, route tables, and network security groups to control traffic flow and restrict access.
2) How does Azure Virtual Network differ from a traditional network?
Azure Virtual Network operates in the cloud and is fully managed by Azure, eliminating the need for physical hardware and manual network configurations. It offers scalability, flexibility, and built in security features such as distributed denial of service (DDoS) protection and network security groups, which are not readily available in traditional networks.
3) What is Azure VPN Gateway?
Azure VPN Gateway is a service that allows secure communication between Azure virtual networks and on premises networks over the internet. It provides encrypted connections using IPsec/IKE protocols to establish site to site VPNs or point to site VPNs for remote access.
4) How can you integrate Azure Virtual Network with on premises networks?
Azure Virtual Network can be connected to on premises networks using Azure VPN Gateway to establish secure and encrypted connections over the internet. Additionally, Azure ExpressRoute can provide dedicated, private connections for higher security and reliability.
5) What is Azure Network Security Group?
Azure Network Security Group is a tool for managing network traffic and applying access control rules within Azure Virtual Networks. It acts as a basic firewall by allowing or denying inbound and outbound traffic based on rules defined by administrators.
6) How can you secure Azure Virtual Network resources from external threats?
To secure Azure Virtual Network resources, you can use Network Security Groups to define access control rules and restrict traffic flow based on source IP addresses, protocols, and ports. Additionally, enabling DDoS protection and implementing Network Virtual Appliances for advanced security features can further enhance the network's security posture.
7) How does Azure Load Balancer work within a Virtual Network?
Azure Load Balancer distributes incoming network traffic across multiple virtual machines within a Virtual Network to ensure high availability, scalability, and reliability of applications. It operates at the transport layer (Layer 4) of the OSI model and can be configured for both inbound and outbound traffic load balancing.
8) What are the benefits of using Azure Traffic Manager in a Virtual Network?
Azure Traffic Manager is a DNS based traffic load balancer that routes incoming user traffic to specific endpoints based on configured routing methods like priority, performance, geographic proximity, or weighted distribution. By leveraging Traffic Manager within a Virtual Network, organizations can achieve global load balancing, traffic shaping, and failover capabilities to enhance application performance and availability across regions.
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