Q: 3
You are increasing your usage of Cloud VPN between on-premises and GCP, and you want to support more traffic than a single tunnel can handle. You want to increase the available bandwidth using Cloud VPN. What should you do?
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Discussion
Its C for scaling bandwidth. You need a new on-prem gateway with a different public IP so Cloud VPN can actually use both tunnels in parallel. Pretty sure that’s what the docs recommend, though correct me if I missed a nuance.
B or C? I'm thinking B lets you open another tunnel on the same gateway, which should help with more traffic since both are active. It's a common mistake to think two tunnels can't split load with the same public IP. Not 100% sure though, maybe I'm missing something about on-prem limits.
C , you need a second on-premises VPN gateway with its own public IP to actually get more aggregate bandwidth. If you just add tunnels to the same on-prem IP, traffic still funnels through the same choke point. Only a separate gateway increases throughput. Not 100% but this is what Google's docs say too, agree?
I don’t think it’s B. C is more likely since using a different on-prem gateway IP actually increases bandwidth, not just redundancy.
B or D for me. If you create two tunnels on the same gateway going to the same destination, that should split some traffic and help with bandwidth, right? Haven’t seen docs say it must be different on-prem gateways. Maybe I’m missing something here.
Going with B here. Adding a second tunnel on the same gateway should let you split traffic and get more bandwidth.
Sounds like B is the right move here. If both tunnels terminate on the same IP, maybe the software can balance traffic across them, so more bandwidth gets available without needing extra hardware or a different region. Could be an edge case depending on vendor support, though.
Saw something like this in a practice test, went with B.
Call it B can help here, seen similar logic in some official practice tests.
C, not B. Only a second on-prem gateway with its own IP actually boosts bandwidth. B just adds tunnels to the same choke point so doesn’t help throughput. Pretty sure about this, but open if someone disagrees.
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