ExpertMedium1 markMultiple Choice
AZ-900 · Question 29 · Domain 2.3: Azure Networking Services
What is the primary difference between Azure VPN Gateway and Azure ExpressRoute?
What is the primary difference between Azure VPN Gateway and Azure ExpressRoute?
Answer options:
A.
VPN Gateway is for connecting virtual machines, while ExpressRoute is for connecting databases.
B.
VPN Gateway uses the public internet, while ExpressRoute uses a private, dedicated connection.
C.
VPN Gateway is a PaaS service, while ExpressRoute is a SaaS service.
D.
ExpressRoute is free, while VPN Gateway charges per gigabyte.
How to approach this question
Compare the underlying transport mechanism of both connectivity options.
Full Answer
B.VPN Gateway uses the public internet, while ExpressRoute uses a private, dedicated connection.✓ Correct
VPN Gateway uses the public internet, while ExpressRoute uses a private, dedicated connection.
The key differentiator is the transport medium. VPNs are cheaper but rely on the unpredictable public internet. ExpressRoute is more expensive but provides guaranteed bandwidth and privacy via a dedicated line.
Common mistakes
Assuming both use the public internet.
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