"D"
Proxy LB's terminate traffic at the LB layer before forwarding to internal instances. Source client IP is not preserved. This excludes options "A" and "B".
TCP/UDP Network LBs (both internal and external) are also known as Passthrough Network LBs and preserve the client IP.
So both options "C" and "D" are correct in terms of preserving client IP, however only the external LB ("D") is available in standard tier. Internal Passthrough TCP/UDP Network LB (option "C") is only in Premium Tier.
https://cloud.google.com/load-balancing/docs/load-balancing-overview#passthrough-network-lb
Internal load balancer (C) is also a non-proxied load balancer but it is supported only in premium-tier networks.
https://cloud.google.com/load-balancing/docs/load-balancing-overview
Answer is D: https://cloud.google.com/network-tiers/docs/overview#:~:text=Premium%20Tier%20enables%20global%20load,Standard%20Tier%20regional%20IP%20address.
Order of elimination : TCP and SSL proxy is with Premium Tier. Can't be Internal TCP/UDP as Standard Tier is across the Internet. So D is correct
TCP Proxy Load Balancing terminates TCP connections from the client and creates new connections to the backends. By default, the original client IP address and port information is not preserved.
Answer is D
Ans: D (though it should have been "External TCP/UDP Network load balancers")
Cant be (C), as they are not supported on standard tier:
https://cloud.google.com/load-balancing/docs/load-balancing-overview
Answer is (C).
Use Internal TCP/UDP Load Balancing in the following circumstances:
You need to forward the original packets unproxied. For example, if you need the client source IP address to be preserved.
https://cloud.google.com/load-balancing/docs/internal#use_cases
I disagree with you, both C and D can keep the Client IP, however only TCP/UDP Network is for standard network.
https://cloud.google.com/load-balancing/docs/network
https://cloud.google.com/load-balancing/docs/load-balancing-overview
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
[Removed]
Highly Voted 9 months, 1 week agomikesp
Highly Voted 1 year, 11 months agodesertlotus1211
Most Recent 8 months agoAwesomeGCP
1 year, 6 months agozellck
1 year, 7 months agopiyush_1982
1 year, 9 months agoszl0144
1 year, 11 months agoAzureDP900
1 year, 5 months agoExamQnA
1 year, 11 months agoTabayashi
2 years agoArturo_Cloud
1 year, 7 months ago