AZ-700 Azure ExpressRoute 2 — Questions and Answers
Question 1: How many BGP sessions does a standard ExpressRoute private peering configuration use?
- 1 — a single BGP session to Microsoft
- 2 — one primary and one secondary for redundancy (Correct answer)
- 4 — two per peering location
- Dynamic — scales based on route count
Correct answer: 2 — one primary and one secondary for redundancy
ExpressRoute private peering requires two BGP sessions (primary and secondary) for built-in redundancy across the two physical links.
Question 2: What is the maximum number of route prefixes that can be advertised to Azure over ExpressRoute private peering with a Standard SKU?
- 100
- 1,000
- 4,000 (Correct answer)
- 10,000
Correct answer: 4,000
ExpressRoute Standard allows advertising up to 4,000 prefixes to Azure over private peering; Premium raises this to 10,000.
Question 3: Which Azure resource must be deployed in your VNet to connect it to an ExpressRoute circuit?
- ExpressRoute Gateway (Virtual Network Gateway with type ExpressRoute) (Correct answer)
- Application Gateway
- VPN Gateway
- Azure Firewall
Correct answer: ExpressRoute Gateway (Virtual Network Gateway with type ExpressRoute)
An ExpressRoute Virtual Network Gateway is required in each VNet you want to connect to the ExpressRoute circuit.
Question 4: What is an ExpressRoute circuit's 'service key' used for?
- Encrypts data traversing the circuit
- Identifies the circuit to the connectivity provider for provisioning (Correct answer)
- Serves as the BGP authentication password
- Activates Premium add-ons
Correct answer: Identifies the circuit to the connectivity provider for provisioning
The service key is a unique identifier for the ExpressRoute circuit that you provide to your connectivity provider to enable provisioning.
Question 5: Which ExpressRoute peering type requires you to register route filters to control which BGP communities are received?
- Private peering
- Microsoft peering (Correct answer)
- Global Reach peering
- Local peering
Correct answer: Microsoft peering
Microsoft peering requires route filters to be configured in Azure to select which BGP service communities (e.g., specific Azure regions or M365) you receive.
Question 6: What is the purpose of the ExpressRoute Local SKU?
- Provides the lowest-cost circuit for local/metro connectivity with unlimited egress included (Correct answer)
- Enables connectivity to all global Azure regions
- Offers the highest bandwidth up to 100 Gbps
- Connects only to Azure Government regions
Correct answer: Provides the lowest-cost circuit for local/metro connectivity with unlimited egress included
ExpressRoute Local is a lower-cost SKU for customers co-located near an Azure region that includes unlimited outbound data transfer.
AZ-700 Azure ExpressRoute 2
How many BGP sessions does a standard ExpressRoute private peering configuration use?