Quiz: DBMS Mock Tests on Transactions and concurrency control.

This quiz contains information about DBMS Transactions and concurrency control.
A database management system (DBMS) is a software package designed to explain, employ, repossess and manage data in a database. DBMS serves many function. The functions of the DBMS are to ensure that any database remain reliable source. In this regard, there are two functions called Transaction support and Concurrency Control. These functions are different but mutually dependent on each other. DBMS allows its users to carry simultaneous tasks at the same time. There is a need to restrict the accesses to avoid the database of being incompatible. For deal with this issue, Concurrency control has been introduced by the DBMS which restrict the database accesses to engage with one another. However, before Concurrency control, there is a need to understand the transaction in DBMS. A transaction is the collection of operations that involve all the data in the database. There are four traits of the transactions that must be accurate to avoid the failure of the system i.e. Atomicity, Consistency, Isolation and Durability. On the other hand, Concurrency control is for managing the simultaneous task in the database. For smooth multiple transactions, Concurrency control is an essential tool to consider. Different Concurrency control protocols offer different benefits. It is the most important task to attain system working. However, in DBMS, there may be issues while using Concurrency control like Lost Update, Incorrect Summary Issues etc. Let’s take a Mock test about Transaction and Concurrency control to test your knowledge and as well as introduce yourself with new information.