MCQ DBMS Part 3

Q1.   The way a particular application views the data from the database that the application

uses is a

(A) module.                                           (B) relational model.

(C) schema.                                          (D) sub schema.

Q2.   In an E-R diagram an entity set is represent by a

(A) rectangle.                                        (B) ellipse.

(C) diamond box.                                  (D) circle.

Q3.   A report generator is used to

(A) update files.                                    (B) print files on paper.

(C) data entry.                                       (D) delete files.

Q4.   The property / properties of a database is / are :

(A) It is an integrated collection of logically related records.

(B) It consolidates separate files into a common pool of data records.

(C) Data stored in a database is independent of the application programs using it.

(D) All of the above.

Q5.   The DBMS language component which can be embedded in a program is

(A) The data definition language (DDL).

(B) The data manipulation language (DML).

(C) The database administrator (DBA).

(D) A query language.

Q6.   A relational database developer refers to a record as

(A) a criteria.                                         (B) a relation.

(C) a tuple.                                            (D) an attribute.

Q7.   The relational model feature is that there

(A) is no need for primary key data.

(B) is much more data independence than some other database models.

(C) are explicit relationships among records.

(D) are tables with many dimensions.

Q8.   Conceptual design

(A) is a documentation technique.

(B) needs data volume and processing frequencies to determine the size of the database 

 (C) involves modelling independent of the DBMS.

(D) is designing the relational model.

Q9.   The method in which records are physically stored in a specified order according to a key field in each record is

(A) hash.                                               (B) direct.

(C) sequential.                                       (D) all of the above.

Q10. A subschema expresses

(A) the logical view.                               (B) the physical view.

(C) the external view.                             (D) all of the above.

MCQ 1 DBMS Difficulty level 0

Q11.   The database schema is written in

(A) HLL                                                 (B) DML

(C) DDL                                                (D) DCL

Q12.   In the architecture of a database system external level is the

(A) physical level.                                  (B) logical level.

(C) conceptual level                               (D) view level.

Q13.   An entity set that does not have sufficient attributes to form a primary key is a

(A) strong entity set.                              (B) weak entity set.

(C) simple entity set.                              (D) primary entity set.

Q14.   In a Hierarchical model records are organized as

(A) Graph.                                             (B) List.

(C) Links.                                              (D) Tree.

Q15.   In an E-R diagram attributes are represented by

(A) rectangle.                                        (B) square.

(C) ellipse.                                            (D) triangle.

Q16.   In case of entity integrity, the primary key may be

(A) not Null                                            (B) Null

(C) both Null & not Null.                                     (D) any value.

Q17.   The language used in application programs to request data from the DBMS is referred

to as the

(A) DML                                                (B) DDL

(C) VDL                                                (D) SDL

Q18.   A logical schema

(A) is the entire database.

(B) is a standard way of organizing information into accessible parts.

(C) describes how data is actually stored on disk.

(D) both (A) and (C)

Q19.   Related fields in a database are grouped to form a

(A) data file.                                          (B) data record.

(C) menu.                                              (D) bank.

Q20. The database environment has all of the following components except:

(A) users.                                              (B) separate files.

(C) database.                                        (D) database administrator.

MCQ of DBMS difficulty level 0

Q1.   It is most common type of query. It retrieves records from one or more tables and then displays the

A) Parameter                                         B) Select

C) crosstab                                           D) All of above

Q2.   It is a query that when run displays its own dialog box prompting you for information, such as

A) Select                                                B) crosstab

C) Parameter                                          D) Append

Q3.   A computer language for informing the DBMS regarding the data structure used is

a.      PASCAL                                       b.      DDL

c.      PROLOG                                      d.      FORTRAN

Q4.   In the relational model, cardinality is termed as:

(A) Number of tuples.                            (B) Number of attributes.

(C) Number of tables.                            (D) Number of constraints.

Q5.   The view of total database content is

(A) Conceptual view.                              (B) Internal view.

(C) External view.                                  (D) Physical View.

Q6.   DML is provided for

(A) Description of logical structure of database.

(B) Addition of new structures in the database system.

(C) Manipulation & processing of database.

(D) Definition of physical structure of database system.

Q7.   ‘AS’ clause is used in SQL for

(A) Selection operation.                                     (B) Rename operation.

(C) Join operation.                                 (D) Projection operation.

Q8.   ODBC stands for

(A) Object Database Connectivity.          (B) Oral Database Connectivity.

(C) Oracle Database Connectivity.          (D) Open Database Connectivity.

Q9.   Architecture of the database can be viewed as

(A) two levels.                                       (B) four levels.

(C) three levels.                                     (D) one level.

Q10. In a relational model, relations are termed as

(A) Tuples.                                            B) Attributes

(C) Tables.                                            (D) Rows.