Exam Professional Cloud Architect topic 4 question 3 discussion

I will go A cause note in https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/modifying-interconnects says " It is not possible to change the link type on an Interconnect connection circuit from 10 Gbps to 100 Gbps. If you want to migrate to 100 Gbps, you must first provision a new 100-Gbps Interconnect connection alongside your existing 10-Gbps connection, and then migrate the traffic onto the 100-Gbps connection."

Answer A ; 99.9% availability requires 2 interconnect

A is the right answer

A is correct

https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/modifying-interconnects#:~:text=The%20link%20type,100%E2%80%91Gbps%20connection.

I propose A. B - it is not possible to change interconnect link type. C - more problematic and probably more expensive D - Google does not offer a service level agreement (SLA) with Carrier Peering

Answer is A, as explained in the note at page 339 "Implementing Hybrid Connectivity" of the newly released book: https://a.co/d/asbIhln

A is the correct answer

Answer is A

A is best answer

A. In the text it mentions high connection - reliable, only dedicated interconnect could achieve that.

A is correct

Vote A

Dedicated Interconnect provides direct physical connections between your on-premises network and Google's network. https://cloud.google.com/network-connectivity/docs/interconnect/concepts/dedicated-overview

vote A

A is correct. Marked D is wrong

Says "Upgrade keeping same network requirements". Remember infrastructure costs need to be kept low. A new dedicated connection will involve purchasing new installation equipment. Upgrading to a higher bandwidth is more cost-friendly. I go with B.