PSHarriJaakkonen:~/Blog/Posts>cat ./az-700-part-01-exam-overview-networking-foundations.html

AZ-700 Part 1: Exam Overview and Networking Foundations

AZ-700 Part 1: Exam Overview and Networking Foundations

Back to AZ-700 index

What AZ-700 Tests

AZ-700 tests whether you can design, implement, manage, secure, monitor, and troubleshoot Azure networking solutions. Microsoft expects Azure network engineers to work with solution architects, cloud administrators, security engineers, application developers, and DevOps engineers. The exam is scenario-heavy: you are usually given requirements, constraints, and symptoms, then asked to choose the service or configuration that satisfies them.

Skills Measured

DomainWeightStudy priority
Core networking infrastructure25-30%Highest. Addressing, DNS, routing, and monitoring appear everywhere.
Connectivity services20-25%High. VPN, ExpressRoute, and Virtual WAN are major design topics.
Application delivery services15-20%High. Know service selection and health-probe behavior.
Private access to Azure services10-15%Medium, but DNS details are critical.
Azure network security services15-20%High. NSG, Firewall, Firewall Manager, and WAF are common scenario answers.

Foundational Knowledge

  • IPv4 CIDR notation, subnet sizing, overlapping address spaces, and route specificity.
  • TCP, UDP, HTTP, HTTPS, TLS, DNS, SNAT, DNAT, BGP, IPsec, and IKE basics.
  • Azure resource hierarchy, regions, availability zones, resource groups, managed identities, and RBAC.
  • How Azure platform services reserve subnets and expose private endpoints.
  • How effective routes and effective security rules determine real packet behavior.

Exam Mindset

Do not memorize only product names. Memorize decision boundaries. For example, if the requirement says global HTTP acceleration with WAF and private origin access, think Azure Front Door Premium. If it says regional path-based routing to VM backends, think Application Gateway. If it says private PaaS access with a private IP in your VNet, think Private Endpoint plus Private DNS.

Minimum Lab Environment

  • One hub VNet and two spoke VNets.
  • One VM per VNet for testing connectivity.
  • Azure Bastion or a locked-down jump host.
  • Azure Firewall or a simple NVA path for forced tunneling.
  • One storage account with private endpoint and private DNS.
  • One Application Gateway or Front Door lab for HTTP delivery.

Official Resources

How To Think Like An Azure Network Engineer

Most AZ-700 questions can be solved by separating control plane, data plane, and name resolution. Control plane is the Azure resource configuration. Data plane is the actual traffic path. Name resolution is how the client finds the destination. A design can look correct in the portal and still fail if DNS resolves to the wrong address or a route sends traffic to the wrong next hop.

The Four Questions

  1. What name or IP is the client trying to reach?
  2. What route does Azure select from the source subnet?
  3. Which security controls allow or deny the flow?
  4. Which service health probe or backend setting decides whether traffic is sent?

Core Design Patterns

PatternUsed forServices involved
Hub-spokeCentralized shared services and inspectionVNet peering, Azure Firewall, VPN/ExpressRoute gateways, UDRs
Virtual WANManaged large-scale branch and hub connectivityVirtual WAN, virtual hubs, VPN, ExpressRoute, secured hub
Private PaaSRemove public access to Azure servicesPrivate Endpoint, Private DNS, DNS Private Resolver
Global web appGlobal HTTP routing and protectionAzure Front Door, WAF, origin groups, Private Link origin
Regional web appRegional layer 7 routingApplication Gateway, WAF, backend pools, probes

What To Memorize

  • Special subnet names: GatewaySubnet, AzureFirewallSubnet, AzureBastionSubnet.
  • Private endpoint DNS behavior and zone-link requirements.
  • Route precedence and longest prefix match.
  • Load Balancer vs Application Gateway vs Front Door vs Traffic Manager.
  • VPN vs ExpressRoute vs Virtual WAN decision boundaries.
  • NSG, Azure Firewall, and WAF responsibilities.

Next: Part 2 - Core Networking: IP, DNS, VNets