You Want to Run a Single Caching HTTP Reverse Proxy

question 86

Multiple Choice

You want to run a single caching HTTP reverse proxy on GCP for a latency-sensitive website. This specific reverse proxy consumes almost no CPU. You want to have a 30-GB in-memory cache, and need an additional 2 GB of memory for the rest of the processes. You want to minimize cost. How should you run this reverse proxy?

• A) Create a Cloud Memorystore for Redis instance with 32-GB capacity.
• B) Run it on Compute Engine, and choose a custom instance type with 6 vCPUs and 32 GB of memory.
• C) Package it in a container image, and run it on Kubernetes Engine, using n1-standard-32 instances as nodes. Package it in a container image, and run it on Kubernetes Engine, using n1-standard-32 instances as nodes.
• D) Run it on Compute Engine, choose the instance type n1-standard-1 , and add an SSD persistent disk of 32 GB. Run it on Compute Engine, choose the instance type n1-standard-1 , and add an SSD persistent disk of 32 GB.

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Definitions:

Initial Outlay

The upfront expenditure necessary to initiate a project or investment.

Incremental Cash Flows

The additional cash flow generated by a company as a result of a decision to undertake a new project or investment.

Capital Budgeting

The process by which a business evaluates and selects long-term investments that are worth more than the cash they cost.

Sunk Costs

Costs that have been incurred and cannot be recovered, not affecting future business decisions.