Author Question: What is the CAP theorem, and what does it show? What will be an ideal ... (Read 47 times)

jessicacav · **on:** Jul 7, 2018

What is the CAP theorem, and what does it show?

What will be an ideal response?

Question 2

The SQL CREATE TABLE statement is used to name a new table and describe the table's columns.

Indicate whether the statement is true or false

uniquea123 · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

The CAP theorem, which was first proposed by Eric Brewer in 2000, and then proven as a theorem by Seth Gilbert and Nancy Lynch in 2002, basically states that there are three properties of distributed database systems, and a DBMS system cannot guarantee that all three properties will be satisfied at the same time. At least one of the properties will be at least somewhat compromised. The three properties are:
Consistencyall the database partition replicas see the same data at any given point in time.
Availabilityunless a node has failed, it will respond to a request.
Partition tolerancethe distributed database is doing its job, and therefore if we can't get to the data on one partition, it will be available on another.

Answer to Question 2

TRUE