Top 150+ Solved Advanced Database Management Systems (ADBMS) MCQ Questions Answer
Q. What is the type of Oracle backup in which all uncommitted changes have been removedfrom the datafiles?
a. Full backup
b. Consistent backup
c. Inconsistent backup
d. Differential backup
Q. Which of the following is true concerning a procedure?
a. You do not create them with SQL.
b. They do not need to have a unique name.
c. They include procedural and SQL statements.
d. They are the same thing as a function.
Q. A CASE SQL statement is which of the following?
a. A way to establish an IF-THEN-ELSE in SQL.
b. A way to establish a loop in SQL.
c. A way to establish a data definition in SQL.
d. All of the above.
Q. Which of the following statements is true concerning routines and triggers?
a. Both consist of procedural code.
b. Both have to be called to operate.
c. Both run automatically.
d. Both are stored in the database.
Q. A distributed database has which of the following advantages over a centralizeddatabase?
a. Software cost
b. Software complexity
c. Slow Response
d. Modular growth
Q. An autonomous homogenous environment is which of the following?
a. The same DBMS is at each node and each DBMS works independently.
b. The same DBMS is at each node and a central DBMS coordinates database access.
c. A different DBMS is at each node and each DBMS works independently.
d. A different DBMS is at each node and a central DBMS coordinates database access.
Q. A transaction manager is which of the following?
a. Maintains a log of transactions
b. Maintains before and after database images
c. Maintains appropriate concurrency control
d. All of the above
Q. Location transparency allows for which of the following?
a. Users to treat the data as if it is at one location
b. Programmers to treat the data as if it is at one location
c. Managers to treat the data as if it is at one location
d. All of the above.
Q. A heterogeneous distributed database is which of the following?
a. The same DBMS is used at each location and data are not distributed across all nodes.
b. The same DBMS is used at each location and data are distributed across all nodes.
c. A different DBMS is used at each location and data are not distributed across all nodes.
d. A different DBMS is used at each location and data are distributed across all nodes.
Q. Some of the columns of a relation are at different sites is which of the following?
a. Data Replication
b. Horizontal Partitioning
c. Vertical Partitioning
d. Horizontal and Vertical Partitioning
Q. Which of the following is true concerning a global transaction?
a. The required data are at one local site and the distributed DBMS routes requests as necessary.
b. The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.
c. The required data are at one local site and the distributed DBMS passes the request to only the local DBMS.
d. The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS
Q. A homogenous distributed database is which of the following?
a. The same DBMS is used at each location and data are not distributed across all nodes.
b. The same DBMS is used at each location and data are distributed across all nodes.
c. A different DBMS is used at each location and data are not distributed across all nodes.
d. A different DBMS is used at each location and data are distributed across all nodes.
Q. Replication should be used when which of the following exist?
a. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
b. When using many nodes with different operating systems and DBMSs and database designs.
c. The application's data can be somewhat out-of-date.
d. All of the above.
Q. Storing a separate copy of the database at multiple locations is which of the following?
a. Data Replication
b. Horizontal Partitioning
c. Vertical Partitioning
d. Horizontal and Vertical Partitioning
Q. A distributed database is which of the following?
a. A single logical database that is spread to multiple locations and is interconnected by a network
b. A loose collection of file that is spread to multiple locations and is interconnected by a network
c. A single logical database that is limited to one location.
d. A loose collection of file that is limited to one location.