Answer:
dedicated line; virtual circuit.
Step-by-step explanation:
So, let us first fill in the gap in the question above. Note that the words that are capitalized are the missing words in the question.
" An organization can lease a private DEDICATED LINE that is not shared with other users, or a VIRTUAL CIRCUIT that can be physically configured over shared lines in the carrier's cloud."
This question is about cloud computing system. So, in order to understand this question very well, we will have to understand what carrier's cloud is. The carrier cloud has many characteristics and Importance, few of them are; helps in network synchronizing(pertaining to its delivery), the carrier cloud helps in maintaining security and quality experience with carrier grade service level agreement and it support open innovation through web APIs.