Azure Compute and Networking Flashcards

Which Azure service distributes incoming network traffic across multiple backend VMs at layer 4 (transport)?

Answer: Azure Load Balancer

Azure Load Balancer operates at layer 4 and distributes TCP/UDP traffic across backend pool resources.

What does Azure Application Gateway provide that a basic load balancer does not?

Answer: Layer 7 web traffic routing with a web application firewall

Application Gateway is a layer 7 load balancer that supports URL-based routing and includes an optional web application firewall.

Which service routes user traffic to the closest or best-performing endpoint at the DNS level across regions?

Answer: Azure Traffic Manager

Azure Traffic Manager is a DNS-based traffic load balancer that directs clients to the optimal global endpoint.

What is the main function of an Azure virtual network (VNet)?

Answer: Enabling secure communication between Azure resources

A virtual network enables Azure resources to securely communicate with each other, the internet, and on-premises networks.

Which option lets you connect two Azure virtual networks so resources communicate privately as if on the same network?

Answer: VNet peering

VNet peering connects two virtual networks, allowing traffic to route between them through the Microsoft backbone privately.

A developer needs to run thousands of parallel batch jobs without managing a scheduler. Which service fits best?

Answer: Azure Batch

Azure Batch schedules and runs large-scale parallel and high-performance computing jobs efficiently.

What does Azure Bastion provide?

Answer: Secure RDP and SSH access to VMs without public IPs

Azure Bastion provides secure RDP/SSH connectivity to VMs directly through the portal without exposing public IP addresses.