Which network service tier keeps user traffic on Google's own global backbone for most of its path, entering the network at an edge location close to the client?
Show answer and explanation
Answer: C
Premium Tier is the default network service tier, and it moves user traffic onto Google's global private backbone. Traffic enters Google's network at a point of presence near the client and stays on Google-owned fiber until it reaches the destination region, which generally gives lower latency and steadier performance. Standard Tier exits to the public internet sooner, which costs less but routes traffic over less controlled paths. Economy and Partner are not Google Cloud network service tiers, so neither can be correct.
Why the other options are wrong
- A. Standard Tier is a real tier, but it carries traffic over the public internet for most of the path. It costs less than Premium, which is why it is not the answer for backbone routing.
- B. Economy is not a Google Cloud network service tier, so there is no such option that routes traffic over regional paths at lower cost. Premium and Standard are the two real choices.
- D. Partner is not a network service tier. Partner Interconnect is a connectivity product that uses service providers for private links, and it does not control how public traffic is routed.
Exam tip. Premium is the default tier; Standard trades backbone routing for lower cost.