Exam Professional Cloud Architect topic 1 question 40 discussion

It's latency issues. That won't be solved by adding another VPN tunnel. If it was just a throughput issue then VPN would do, however to improve latency you need to go layer 2. Answer is B

I think B is correct. I think it is more reliable.

1. Dedicated Interconnect for high performance: Dedicated Interconnect provides a direct physical connection between your on-premises network and Google Cloud. This offers significantly lower latency, higher bandwidth, and greater reliability compared to a VPN. It's ideal for demanding workloads like database replication. 2. Reduced latency and packet loss: By bypassing the public internet, Dedicated Interconnect minimizes latency and packet loss, ensuring consistent and efficient data transfer for your MySQL replication. 3. Enhanced reliability: Dedicated Interconnect provides a more stable and predictable connection compared to a VPN, which can be affected by internet traffic fluctuations. Why D is not correct: Add additional VPN connections and load balance them: This might improve bandwidth slightly but won't address the fundamental latency and packet loss issues inherent with VPNs over the public internet.

It's B, Interconnect. D is wrong in this case: While this might help distribute traffic, it won't solve the underlying issue of latency and packet loss caused by the inherent limitations of VPNs.

Dedicated interconnect is the answer. A second VPN will give you an HA solution, not going to resolve the latency.

Have you mind the budget you'll need to improve network infrastructure - whether it's dedicated interconnect or duplicating VPN connection? Mega IT corps may can afford, but I won't approve the work just for disaster recovery plan, if I were the authority. It's definatedly overkill. Main problem here is a latency issue and/or packet loss, yet the reason hasn't clearly configured. Whether it's occational, or repeatetive, and/or by DB engine or by network, mostly unknown. But you don't have to solve the problem if there's better bypass. Simply retry and test it. There C also can be a solution (which likely being placed already), but it doesn't have significant feature for logging a transaction success/fail. If you take advance Pub/Sub, you can track each transaction processes. Ordering, can adding another issue, but it worth a try - cost effectively.

Correct answer is B as its a latency issue.

I go for B. Latency won't be solved by adding new VPN tunnels.

We have something called as HAVPN which uses 2 VPN Connections at a time. As this Question is old. we dont have this Option called use HAVPN. Now its Updated so the answer will be D. As its just a replication for disaster recovery and they are facing very minimal challenges

I think the best option is E, using PubSub. In question the main issue is " a small amount of packet loss". As per google PubSub documentation, data replication among databases is one of the common use case of PubSub. The asynchronously communication of PubSub can overcome small latency issues. Setting up dedicated interconnect would be very costly and required many pre-requisites.

You could technically use your private key to encrypt a message, but it would not be secure because anyone who has your public key could decrypt the message. The recommended practice is to use your private key only for decryption and to use the recipient's public key for encryption. I vote for D

Configuring a Google Cloud Dedicated Interconnect requirement for company is a proximity to colocation facility and meeting condition to have dedicated interconnect. Had this was possible why did they used Cloud VPN in the first place ? I think answer should be D.

If i face this issue, I will give a try with additional VPN, decision using VPN, maybe because they need encryption as well. With switching to dedicated interconnect, you have to implement your own VPN solution or application encryption. so it need more anaylsis to just skip VPN and use dedicated interconnect solution.

The company should consider configuring a Google Cloud Dedicated Interconnect. A Google Cloud Dedicated Interconnect provides a private connection between the company's on-premises data center and GCP, which can help to reduce latency and improve the reliability of the connection. This can be particularly useful for replicating large amounts of data or for applications that require low-latency connectivity. Option A, configuring the replication to use UDP, would not necessarily improve the reliability of the connection, as UDP is a connectionless protocol that does not guarantee delivery of packets. Option C, restoring the database daily using Google Cloud SQL, would not address the underlying issues with the replication process.

so just to solve this issue we are going over a Dedicated Interconnect imagine saying this to a your project head.

ok for B

This is straight forward question, B is right. Dedicated line solves latency issues