Examkin

Soru

Zorluk: ZorApplication Load Balancing and Delivery

A national education board is designing the application delivery and load balancing architecture for its regional virtual learning management system (LMS) in the East US region. The virtual machines (VMs) hosting the system are deployed across multiple Availability Zones to ensure high availability. The architecture must satisfy the following requirements:
1. Distribute incoming UDP-based video streaming traffic across the backend VMs.
2. Route HTTPS-based web portal traffic, including offloading SSL/TLS termination and routing requests with the path '/assignments/*' to a dedicated virtual machine scale set.
3. The backend virtual machines currently have Basic SKU Public IP addresses associated with their network interfaces for direct administrative access.

Which two of the following components and configurations should you include in the design to meet these requirements?

  1. An Azure Application Gateway (Standard v2 SKU) to handle the HTTPS-based web portal traffic and route requests based on URL paths.Cevap
  2. An Azure Load Balancer (Standard SKU) to distribute the UDP-based streaming traffic, after upgrading the virtual machines' Public IP addresses to Standard SKU.Cevap
  3. C
    An Azure Load Balancer (Basic SKU) to distribute the UDP-based streaming traffic, allowing the virtual machines to keep their existing Basic SKU Public IP addresses.
  4. D
    Azure Traffic Manager to manage the HTTPS-based web portal traffic, perform SSL termination, and route requests based on URL paths.

Cevap

An Azure Application Gateway (Standard v2 SKU) to handle HTTPS-based web portal traffic and route requests based on URL paths, and an Azure Load Balancer (Standard SKU) to distribute UDP-based streaming traffic after upgrading the virtual machines' Public IP addresses to Standard SKU.
The correct architecture uses an Azure Application Gateway (Standard v2 SKU) to handle the HTTPS-based web portal traffic because it operates at Layer 7, providing path-based routing and SSL termination. It also uses a Standard Azure Load Balancer to distribute the UDP-based streaming traffic. Since the VMs are deployed across multiple Availability Zones, the Standard Load Balancer is required (as Basic Load Balancer does not support Availability Zones). To avoid SKU mismatch validation failures, the virtual machines' existing Basic SKU Public IPs must be upgraded to Standard SKU.

Adım Adım Çözüm

1
Analyze protocol and routing requirements for the web portal.
The web portal requires HTTPS routing, SSL termination, and path-based routing (e.g., routing `/assignments/*` to a dedicated VM scale set). Since these are Layer 7 application routing capabilities, Azure Application Gateway is the correct resource.
Azure Application Gateway operates at Layer 7 and supports SSL offloading and path-based routing rules.
2
Analyze protocol requirements for the live video streaming.
The video streaming uses UDP. This requires a Layer 4 load balancer. Azure Load Balancer supports TCP and UDP traffic.
Azure Load Balancer operates at Layer 4 and can distribute non-HTTP/S traffic like UDP.
3
Verify SKU compatibility and Availability Zone requirements.
The virtual machines are deployed across multiple Availability Zones, which requires the Standard SKU of Azure Load Balancer. However, Standard Load Balancer backend pools only support Standard SKU resources. The virtual machines' network interfaces currently have Basic SKU Public IP addresses, which causes a validation error due to SKU mismatch.
To use Standard Load Balancer, all associated Public IP addresses on the virtual machines' network interfaces must be upgraded from Basic SKU to Standard SKU.

Anahtar Kavram

Application Load Balancing and Delivery
Tahmini Süre:2m 0s
Bu soruyu puanla

Konular

Application Load Balancing and Delivery

Bu konudan daha fazla soru