Load Balancer and Traffic Manager
Application delivery questions test Azure Load Balancer, public versus internal load balancing, regional and cross-region designs, NAT rules, outbound rules, and Traffic Manager.
How to study for AZ-700
Treat each AZ-700 item as a traffic-path problem: trace source, destination, DNS, route, next hop, load balancing, private access, and filtering before choosing.
Core concepts
Concept 1
Load Balancer and Traffic Manager questions test Azure networking design and troubleshooting choices rather than memorized portal paths.
Exam cue: Identify the traffic path, scope, protocol, name resolution behavior, next hop, inspection point, and security control.
Concept 2
The best answer traces traffic from source to destination through addressing, DNS, routing, security, connectivity, and delivery controls.
Exam cue: Choose the Azure networking service that fits reachability, availability, latency, scale, and security requirements.
Concept 3
Eliminate answers that ignore effective routes, name resolution, subnet constraints, private DNS, health probes, or network security boundaries.
Exam cue: Prefer least exposure, private access, validated routes, monitored health, and explicit security policy.
Risk pitfalls and guardrails
Confusing DNS resolution with routing or security filtering.
Guardrail: Avoid answers that confuse DNS with routing, service endpoints with private endpoints, NSGs with firewalls, or layer 4 and layer 7 load balancing.
Opening public access when Private Link, VPN, ExpressRoute, or service endpoints meet the requirement.
Guardrail: Avoid answers that confuse DNS with routing, service endpoints with private endpoints, NSGs with firewalls, or layer 4 and layer 7 load balancing.
Choosing load balancing without matching layer 4, layer 7, regional, global, or DNS-routing behavior.
Guardrail: Avoid answers that confuse DNS with routing, service endpoints with private endpoints, NSGs with firewalls, or layer 4 and layer 7 load balancing.
Memory anchors
Azure Load Balancer
Azure Load Balancer distributes layer 4 TCP and UDP traffic across healthy backend resources.
Internal Load Balancer
An internal load balancer distributes private traffic inside a virtual network.
Public Load Balancer
A public load balancer distributes inbound internet traffic to backend resources.
Health Probe
A health probe determines whether a backend instance should receive traffic.
Load Balancing Rule
A load balancing rule maps frontend traffic to backend pool resources.
Inbound NAT Rule
An inbound NAT rule forwards specific frontend ports to backend instances.
Outbound Rule
An outbound rule defines outbound SNAT behavior for backend resources.
Cross Region Load Balancer
A cross-region load balancer routes traffic across regional load balancers.
Traffic Manager
Traffic Manager uses DNS-based routing to direct clients to endpoints.
Traffic Routing Method
A Traffic Manager routing method chooses endpoints by priority, weight, performance, geography, or subnet.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A service needs private layer-4 load balancing for TCP traffic among VMs in one region. Which Azure service and frontend are appropriate?
Internet clients must reach a TCP service on port 443 across a VM scale set. Which service fits?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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