MCQ | Database Management System (DBMS) Database Management System (DBMS) 1 / 53 _____is not the data type of MS-Access. Form Text Number Memo 2 / 53 The report can be generated by using data from... Forms Both Table And Query Query Table 3 / 53 A field that is used to uniquely define particular record in a table is called: Relationship Constraints Primary Key Entity 4 / 53 Which of the following SQL statement is used to DELETE rows from a database table? . REMOVE CLEAR DROP DELETE 5 / 53 In the __________ normal form, a composite attribute is converted to individual attributes. Third Fourth Second First 6 / 53 Which of the following gives a logical structure of the database graphically? Entity diagram Architectural representation Entity-Relationship diagram Database diagram 7 / 53 ….. query changes the value in the main table Update None both Select & Update Select 8 / 53 Which data type provides storage for variable length and arbitrary format data? Hyperlink. Memo Text OLE object 9 / 53 Which SQL keyword is used to retrieve a maximum value? TOP MOST MAX UPPER 10 / 53 Which-one ofthe following statements about normal forms is FALSE? Loss less, dependency – preserving decomposition into BCNF is always possible BCNF is stricter than 3 NF Any relation with two attributes is BCNF Lossless, dependency –preserving decomposition into 3 NF is always possible 11 / 53 The term attributes refers to a________ of a table. Column Tuple Record Key 12 / 53 Date/Time occupies . . . bytes of memory. 4 8 2 16 13 / 53 Which is a bottom-up approach to database design that design by examining the relationship between attributes: Normalization Database modeling Decomposition Functional dependency 14 / 53 The maximum size of the text field in MS. Access is . 255 6400 50 10 15 / 53 The data type appropriate to store salary is. . Memo Auto number Currency Text 16 / 53 Which of the following is/are the main goals of a distributed database? Reduced communication overhead Interconnection of database All of the options are correct Incremental growth 17 / 53 This key that uniquely identifies each record is called: Field Name Primary Key Key Record Unique Key 18 / 53 The term "SQL" stands for Structured query language Server-side query language : Standard query language Sequential query language 19 / 53 Which of the following is generally used for performing tasks like creating the structure of the relations, deleting Relations? Query DDL(Data Definition Language) Relational Schema DML(Data Manipulation Language) 20 / 53 CREATE TABLE employee (name VARCHAR, id INTEGER ) What type of statement is this? View Integrity constrain DML DDL 21 / 53 A Detail Management System is a type of _______ software. Bot A and C It is a kind of general software Its a type of system software It is a kind of application software 22 / 53 In general, a file is basically a collection of all related_____ Database Rows & Columns Fields Records 23 / 53 A distributed database is a collection of data which belong to the same system but are spread over the of the network. Database, DBMS Logically, sites Physically, sites None of the above 24 / 53 object of access is used to print formatted data. Table Form Report Query 25 / 53 In a distributed Database reduction of redundancy is obtained by_____ None of the above Data fragmentation Data Sharing Data Replication 26 / 53 The primary key does not accept . . . None of above Text Number Null Value 27 / 53 The server process that implements lock Manages functionality, is called Lock Manager Proceses Manager processes Server Processes Database Writer Process 28 / 53 An _______ is a set of entities of the same type that share the same properties, of attributes. Entity set Relation set Attribute set Entity model 29 / 53 A relational database consists of a collection of Fields Tuples Keys Tables 30 / 53 The columns in a database table are called. .. Memo record report field 31 / 53 With SQL, how do you select all the records from a table named "Persons" where the value of the column “FirstName” ends with an “a” ? SELECT * FROM Persons WHERE FirstName='a' SELECT * FROM Persons WHERE FirstName LIKE '%a' SELECT * FROM Persons WHERE FirstName='%a' SELECT * FROM Persons WHERE FirstName LIKE 'a%' 32 / 53 Storing a separate copy of the database at multiple locations is which of the following? Horizontal Partitioning Data Replication Vertical Partitioning Vertical Partitioning 33 / 53 Tables in second normal form (2NF): Have all non key fields depend on the whole primary key Have a composite key Eliminate the possibility of a insertion anomalies Eliminate all hidden dependencies 34 / 53 Which is not a type of query? Search Update Select All the options are correct 35 / 53 The term ________ is used to refer to a row Field Instance Tuple Attribute 36 / 53 Which of the following refers to the level of data abstraction that describes exactly how the data actually stored? Logical Level Physical Level File Level Conceptual Level 37 / 53 In the __________ normal form, a composite attribute is converted to individual attributes. Second Fourth First Third 38 / 53 Which of the following is not a DDL command? TRUNCATE ALTER None of the option UPDATE 39 / 53 A........ key uniquely identifies a record. Composite Foreign Primary None 40 / 53 Functional Dependencies are the types of constraints that are based on_____ Superset key Key None of the mentioned Key revisited 41 / 53 In MS Access data are stored In . . …. Form Query All of the options are correct Table 42 / 53 Which forms simplifies and ensures that there are minimal data aggregates and repetitive groups: 1NF 2NF 3NF All of the mentioned 43 / 53 The term "Data" refers to: The electronic representation of the information ( or data) Raw Facts and figures All of above Basic information 44 / 53 A table on the many side of a one to many or many to many relationship must: Be in Second Normal Form (2NF) Be in Third Normal Form (3NF) Have a composite key Have a single attribute key 45 / 53 Which of the following is not a database application? Oracle MS-Access FoxPro MS-Excel 46 / 53 A relationship is considered a: Column three-dimensional table one-dimensional table two-dimensional table 47 / 53 In the given query which of the keyword has to be inserted?INSERT INTO employee ___ (4,Alok,2000); Relation Field Table Values 48 / 53 A data dictionary is repository that manages _________ Memory Data validator Spell Checker Metadata 49 / 53 The default data type in MS-Access if . . . Memo Data/Time Text Number 50 / 53 Which of the following is a group of one or more attributes that uniquely identifies a row? Tuple Determinant Key Relation 51 / 53 The entity relationship set is represented in E-R diagram as Diamond Double diamonds Undivided rectangles Dashed lines 52 / 53 The UPDATE SQL clause can______ update only one row at a time delete only one row at a time update more than one row at a time delete more than one row at a time 53 / 53 The extension of the database file in MS Access is DBF DMB DBM MDB Your score isThe average score is 56% 0% Restart quiz