Which Azure networking service distributes network traffic across multiple virtual machines for high availability and scalability? Learn how Azure Load Balancer delivers efficient, automatic traffic distribution and ensures application reliability.
Table of Contents
Question
Which Azure networking service allows businesses to load balance network traffic across multiple virtual machines?
A. Azure Load Balancer
B. Azure VPN Gateway
C. Azure Front Door
D. Azure ExpressRoute
E. Azure Virtual WAN
Answer
A. Azure Load Balancer
Explanation
Azure Load Balancer distributes incoming network traffic across multiple virtual machines for high availability.
The Azure networking service that allows businesses to load balance network traffic across multiple virtual machines is Azure Load Balancer.
- Traffic Distribution: Azure Load Balancer distributes incoming network traffic across multiple backend virtual machines (VMs) or instances, ensuring that no single VM becomes a bottleneck and that workloads are handled efficiently.
- High Availability: By routing traffic only to healthy VMs (using health probes), Azure Load Balancer maintains application availability even if one or more VMs fail, automatically redirecting requests to healthy instances.
- Scalability: The service automatically scales to handle increases in traffic, enabling applications to remain responsive during peak loads without manual intervention.
- Layer 4 Load Balancing: Azure Load Balancer operates at the transport layer (Layer 4 of the OSI model), distributing TCP and UDP traffic based on source and destination IP addresses, ports, and protocol.
- Backend Pools: VMs are grouped into backend pools, and load balancing rules determine how traffic is distributed among them, supporting both internal (within a virtual network) and external (internet-facing) scenarios.
- Session Persistence and Custom Rules: The service supports session persistence (affinity) and customizable rules for advanced traffic management needs.
Azure Load Balancer distributes incoming network traffic across multiple virtual machines, ensuring high availability, scalability, and efficient resource utilization by automatically routing requests based on health and defined rules.
Microsoft Azure Fundamentals AZ-900 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Microsoft Azure Fundamentals AZ-900 exam and earn Microsoft Azure Fundamentals AZ-900 certification.