Free Online CompTIA DS0-001 Practice Test

A company wants to deploy a new application that will distribute the workload to five different database instances. The database administrator needs to ensure that, for each copy of the database, users are able to read and write data that will be synchronized across all of the instances. Which of the following should the administrator use to achieve this objective?

Given the following customer table:

Which of the following ORM snippets would return the ID, state, and country of all customers with the newest customers appearing first? 

Which of the following firewall types allows an administrator to control traffic and make decisions based on factors such as connection information and data flow communications?

A company is launching a proof-of-concept, cloud-based application. One of the requirements is to select a database engine that will allow administrators to perform quick and simple queries on unstructured data. Which of the following would be best suited for this task?

Which of the following database structures is a type of NoSQL database?