Which of the following is not an abstract implementation provided by the collections framework?

A(n) ________ is a multiple-computer architecture consisting of redundant network nodes that deliver a secondary or backup service when the primary service fails.

A) High-availability cluster (HA) B) Uniform resource identifier (URI) C) Exterior router protocol (ERP) D) SDN interface (SDNi) aggregator

Referring to the figure above, which callout points to the item that can be used to open your browser and locate the page you would like to put a link to in your presentation?

A. A B. B C. C D. E