ExpertEasy1 markMultiple Choice
AZ-305 · Question 37 · Domain 3.2: High Availability
A company has deployed two Azure Virtual Machines running a custom TCP-based application on port 5000.
The VMs are deployed in the same Virtual Network but in different Availability Zones. You need to distribute incoming internet traffic across both VMs. The solution must support health probes to detect if the application on port 5000 stops responding, and it must be as cost-effective as possible.
Which service should you recommend?
A company has deployed two Azure Virtual Machines running a custom TCP-based application on port 5000.
The VMs are deployed in the same Virtual Network but in different Availability Zones. You need to distribute incoming internet traffic across both VMs. The solution must support health probes to detect if the application on port 5000 stops responding, and it must be as cost-effective as possible.
Which service should you recommend?
Answer options:
A.
Azure Basic Load Balancer
B.
Azure Standard Load Balancer
C.
Azure Application Gateway
D.
Azure Traffic Manager
How to approach this question
Identify the protocol (TCP port 5000 = Layer 4) and the topology (Availability Zones).
Full Answer
B.Azure Standard Load Balancer✓ Correct
Azure Standard Load Balancer is a Layer 4 (TCP, UDP) load balancer that provides high availability by distributing incoming traffic among healthy VMs. It fully supports Availability Zones (unlike the Basic SKU). Because the application uses a custom TCP port (not HTTP/HTTPS), Application Gateway is not appropriate. Standard Load Balancer supports custom health probes to ensure traffic is only sent to responsive VMs.
Common mistakes
Choosing Basic Load Balancer to save money, forgetting that Basic SKU does not support Availability Zones.
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