AZ-800 AZ-800 - Microsoft Azure Networking Solutions DNS and Traffic Routing Questions and Answers 2 — Questions and Answers
Question 1: Azure Traffic Manager operates at which layer of the OSI model to route client requests?
- DNS layer (Layer 7 application, DNS-based) (Correct answer)
- Layer 4 (TCP/UDP)
- Layer 3 (IP routing)
- Layer 2 (Ethernet)
Correct answer: DNS layer (Layer 7 application, DNS-based)
Azure Traffic Manager uses DNS-based load balancing, responding to DNS queries with the IP of the selected endpoint.
Question 2: Which Traffic Manager routing method directs all traffic to a single primary endpoint and fails over to a secondary only when the primary is unavailable?
- Priority routing (Correct answer)
- Weighted routing
- Performance routing
- Geographic routing
Correct answer: Priority routing
Priority routing assigns a priority number to each endpoint; Traffic Manager always sends traffic to the highest-priority (lowest number) healthy endpoint.
Question 3: A global e-commerce company wants Traffic Manager to send users to the endpoint with the lowest network latency. Which routing method should they configure?
- Performance routing (Correct answer)
- Geographic routing
- Weighted routing
- MultiValue routing
Correct answer: Performance routing
Performance routing uses a latency table to direct users to the endpoint with the lowest measured latency from their region.
Question 4: Traffic Manager health probes fail for an endpoint. What does Traffic Manager do with DNS responses for that endpoint?
- It stops returning that endpoint in DNS responses until it recovers (Correct answer)
- It returns the endpoint's IP with a very low TTL
- It immediately removes the endpoint from the profile
- It redirects traffic to Azure Front Door
Correct answer: It stops returning that endpoint in DNS responses until it recovers
When an endpoint fails health checks, Traffic Manager excludes it from DNS responses, routing traffic only to healthy endpoints.
Question 5: You need Traffic Manager to distribute traffic across three endpoints with 50%, 30%, and 20% ratios respectively. Which routing method supports this?
- Weighted routing (Correct answer)
- Priority routing
- Subnet routing
- Geographic routing
Correct answer: Weighted routing
Weighted routing assigns a numeric weight to each endpoint; Traffic Manager distributes DNS responses proportionally to these weights.
Question 6: Which Traffic Manager routing method allows you to map specific IP address ranges to specific endpoints?
- Subnet routing (Correct answer)
- Geographic routing
- Performance routing
- MultiValue routing
Correct answer: Subnet routing
Subnet routing maps specified IP address ranges or subnets to dedicated endpoints, enabling source-IP-based traffic steering.
Azure Traffic Manager operates at which layer of the OSI model to route client requests?