data base non-sql

Select one or more: O a. Dynamo uses consistent hashing to achieve consistency O b. The advantage of consistent hashing is that changes of a node only affects its immediate neighbors and other nodes remain unaffected. O c. A virtual node looks like a single node, and each storage host must be responsible for exactly one virtual node d. In consistent hashing, the output range of a hash function is treated as a "ring". Which of the following about the CAP Theorem is/are correct? Select one or more: O a. C stands for "Consistency" b. The CAP theorem states that, every distributed database system can only be guaranteed to have at most two out of the three properties represented by C, A, and P simultaneously. c. P stands for "Partition tolerance" d. It is possible to have the three properties represented by C, A, and P for a non-distributed database system simultaneously. e. A stands for "Atomicity" Which of the following are correct? Select one or more: O a. Eventual consistency guarantees that, if updates are made to a given data item, all reads to that item will eventually return the same value b. Eventual consistency does not order concurrent writes as they are executed. O c. Under eventual consistency, all servers eventually "converge" to the same state at some point in future. O d. Eventual consistency ensures that data is eventually consistent in a distributed database system. Thus, no any read-write conflicts and write-write conflicts can occur under eventual consistency