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Each entity must include some descriptive information Reason: Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with. Copyright 2020 , Engineering Interview Questions.com, 1 – B / 2 – A / 3 – D / 4 – C / 5 – B / 6 – D / 7 – B / 8 – A / 9 – D / 10 – B, 1 – C / 2 – B / 3 – A / 4 – D / 5 – B / 6 – C / 7 – D / 8 – B / 9 – A / 10 – C, 1 – d / 2 – c / 3 – a / 4 – b / 5 – c / 6 – b / 7 – d / 8 – d / 9 – d / 10 – b, 1 – C / 2 – B / 3 – A / 4 – B / 5 – C / 6 – B / 7 – D / 8 – A / 9 – B / 10 – D, 300+ TOP Database Management System Questions and Answers. Divide the data up by logical groups of attributes (e) D. All of the above, 9. Reason: Indexes are created in most RDBMS’s to Provide rapid, random and sequential access to base-table data A. Retrieval of information stored in database Reason: The protocol that ensures conflict serializability is time stamp ordering protocol. Academia.edu is a platform for academics to share research papers. Which of the following is Database Language? (c) (a) .ANSI/ARPANET (c) Supervisor (SupervisorID, BirthDate, Salary, Name(FirstName, MiddleName, LastName),EmpID), {EmpID}) Using SQL language constructs like revoke and grant respectively for revoking and granting privileges to users. (c) Reason: Dense Index record appears for every search key valued in the file. (e) (d) Union C. Relation D. Subset of a Cartesian product of a list of relations, 14. i. ANSI/SPARC Answer : (c) A. In mathematical term Table is referred as Reason: top-down approach is a classical approach to database design relationship types (b) Left – Right approach (c) Answer : (c) The section contains questions on index definition, bitmap and … Relation Attribute Data integrity (a) A Database Management System (DBMS) is 90. Which of the following is the structure of the Database? (d) D. Automatically, Concurrency, Isolation, Durability, 36. 67. 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The minimal set of super key is called None of the above. Reason : i).ANSI/SPARC ii) External Level iii)Internal Level iv) Conceptual Level c. Relation Flexibility Student ? (d) Download CS6302 Database Management Systems Lecture Notes, Books, Syllabus Part-A 2 marks with answers CS6302 Database Management Systems Important Part-B 16 marks Questions, PDF Books, Question Bank with answers Key.. Download link is provided for Students to download the Anna University CS6302 Database Management Systems Lecture Notes,SyllabusPart A 2 marks with answers … 0000007921 00000 n Nodes (a) Reason : Instructor – Student is the relational algebra operation that could be applied on the pair of relations Student and Instructor to obtain the above data. Making a change to the conceptual schema of a database but not affecting the existing external schemas is an example of Each question has its accurate & detailed answers … Answers Answer : (d) A. Deletion A. Delete table In an SQL statement, which of the following parts states the conditions for row selection? You do not need to know the value of attribute A in order to look up the value of attribute B Primary Each mcq has 4 possible answers. a. Database Schema K cannot have a null value for tuples in R1 0000012886 00000 n (b) 100. (d) Which of the following option is use to retrieval of data? A. ii. Strong Answer : (b) (a) Which of the following in true regarding Null Value? Increase the cost of implementation (d) (d) A zero (b) DBMS Interview Questions And Answers. (a) (e) A. Atomicity, Consistency, Isolation, Database 0000012032 00000 n Database Management System - DBMS Trivia Questions and Answers PDF. _____________ refers to the correctness and completeness of the data in a database? D. All of the above, 26. (e) 1 – d / 2 – c / 3 – a / 4 – b / 5 – c / 6 – b / 7 – d / 8 – d / 9 – d / 10 – b, 51. The various relationships of database are: One-to-one: … B. Security Right-side approach Answer : (d) Disk pages A. A. B. (d) 0000007898 00000 n Fname : Answer : (e) Right outer join Reason : Logical data independence refers to making a change to the conceptual schema of a database but not affecting the existing external schemas. Divide the data up by logical groups of entities Database Instance A. A logical description of some portion of database that is required by a user to perform task is called as (c) 1 – B / 2 – A / 3 – D / 4 – C / 5 – B / 6 – D / 7 – B / 8 – A / 9 – D / 10 – B, 31. which of the following is not an Aggregate function? Which of the following Relational Algebra operations require that both tables (or virtual tables) involved have the exact same attributes/data types? Entering a value Which relational algebra operation could have been applied on the pair of relations Student and Instructor to obtain the above data? (c) B. Uncommitted Dependency Decrease the cost of implementation. (b) Every primary-key value must match a foreign-key value in an associated table (a) Reason : If k is a foreign key in a relation R1, then K is a key for some other relation. (d) Hewage (c) What is the extension of Access database file? 0000000751 00000 n Retention A method that speeds query processing by running a query at the same time against several partitions of a table using multi processors is called C. Data isolation Join, Projection, Restriction (e) The defines the physical view of the database. K is a Composite key for R1. Select Count (Product_Description) from Product_T; C. Database Schema Answer : (c) (c) Select C. Collection of data describing one particular enterprise 1. (a) D. Authorization for data access, 10. Divide the data up by logical groups of files Many super types Knowing the value of attribute B you can look up the value of attribute A %PDF-1.2 %���� (e) (a) 81. A. A. (d) Sparse Index. Employee (EmpID, BirthDate, Salary, Name(FirstName, MiddleName, LastName)) 77. c. Primitive operation In mathematical term Row is referred as B. Transitive dependency 1 6. (e) a. A lock that allows concurrent transactions to access different rows of the same table is known as a Universal Modeling Language What is Database? (a) Conceptual Level iv. Answer : (a) Buckets Answer : (b) Database is collection of data and Managing database … Knowing the value of attribute A you can look up the value of attribute B 0000008079 00000 n Answer : (a) C. Table-level lock Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. d. None, 44. Derived. Get complete lecture notes, interview questions paper, ppt, tutorials, course. 97. Multi-query 88. The top of the tree Knowing the value of attribute A you can not look up the value of attribute B Baskets. B. Relational data model Query Execution. (d) D. Domain, 15. 68. Peiris Unary. (a) A. Null = 0 Reason: Two-phase lock is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released iii. Disadvantages of File systems to store data is: Selects all the fields from the Customer table for each row with a customer labeled “best” 0000008765 00000 n K is a Primary key for R1 Lost Update B. (a) Attributes A. Master query (c) Answer : (a) An index record appears for every search key value in the file is a. Offline database connection Second Normal Form C. Relationship sets Atomicity Conceptual Level. 91. (b) C. Third (e) (a) Answer (Discuss two bene ts of views): Solution: A view is a relation de ned by a query and there are … Which of the following is a Data Model? (b) B. B. Subset of a Cartesian product of a list of domains (c) Every entity is a collection of attributes. D. All of the above, 7. Which of the following is Relation-algebra Operation A. Which type of file is easiest to update? Blocks 0000015984 00000 n Consider the following table obtained using Student and Instructor relations. (d) Column header is refer as If K is a foreign key in a relation R1, then How many different columns named “Product Description” is there in table Product_T? C. Master query (c) (e) (b) D. Foreign key, 52. (b) C. Logical Level Reason: Security Which of the following is based on Multi Valued Dependency? (c) (c) 70. C. Atomicity, Consistency, Inconsistent, Durability (c) B. (e) (c) (d) D. Option A and B, 30. A relationship between the instances of a single entity type is called a _____ relationship. 0000009510 00000 n Drop table
C. Third Normal Form (c) (c) Which of the following in true regarding Referential Integrity? DATABASE MANAGEMENT SYSTEM SET 9. The protocol that ensures conflict serializability is 65. Writing a SQL statement to retrieve data from more than one relation Selects all the fields from the Customer table for each row with a customer labeled “*” (c) Answer : (b) 88. In the context of a database table, the statement “A determines B” indicates that 72. What is relational database… Relation Reason: In a super type/subtype hierarchy, each subtype has only one super type The right side of the tree 100 top DBMS multiple choice questions and answers PDF for freshers and experienced. 94. A database management software (DBMS) includes C. Every foreign-key value must match a primary-key value in an associated table How many different product descriptions are in the Product Table? D. Modification of information in the Database, 40. (b) Logical Manager (b) Reason: A relationship between the instances of a single entity type is called a Unary relationship. c. Drop Table b. Schema Middleware. (e) (a) (d) Questions 81 To 90 (a) Internal Level Questions on Indexing and Hashing. A. Logical data independence Physical Schema D. Data independence, 57. 71. Reason: A functional dependency between two or more non-key attributes is called transitive dependency A. Database Management System (DBMS) Questions and Answers . Facilitate data B. Sharability Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with The of the architecture defines user views of the database. C. it takes a single value and returns a list of values as result If every non-key attribute is functionally dependent on the primary key, the relation will be in (d) Multi-valued (d) (d) Ternary B. D. Bottom – Up approach, 56. D. All of the above, 4. D. BCNF, 53. Answer : (a) How many characters are in the field name “Product_Description”? Which of the following is not an Schema? 0000014224 00000 n ii. A ________ attribute is an attribute that can be further subdivided to yield additional attributes. 98. Enlist the various relationships of database. Partial functional dependency Alter Table (d) Adjectives written in the database requirement description help to identify the partial relationships among entities. Divide the data up by logical groups of records Left outer join Clustered ODBC stands for ______ C. Candidate key A type of query that is placed within a WHERE or HAVING clause of another query is called 70. Additional nouns which are appearing in the narrative description of the database requirements (c) Transitive dependency B. Insertion of new information into the database Data Manipulation Language (DML) is not to D. Logical Schema, 8. Database that contains occurrences of logically organised data or information B. (e) Answer : (c) B. Multi-valued attributes 83. D. File Manager, 6. B. Null 0 B. Insertion of new information into the Database 64. c. Both Entity sets Reason: When converting one (1) to many (N) binary relationship into tables, the recommended solution is Foreign key added on the Child (many side) referencing the parent 0000013835 00000 n Foreign key added on both sides (both tables) B. (a) Data redundancy and inconsistency Projection, Selection, Rename. A. Database is collection of data and Managing database … The property of transaction which ensures that either all operations of the transaction are reflected properly in the database or none, is called (a) Data Manipulation Language enables users to A functional dependency between two or more non-key attributes is called Reason: Sub-query that is placed within a WHERE or HAVING clause of another query DATABASE MANAGEMENT SYSTEM Questions and Answers pdf free download,DBMS objective type Questions and Answers,multiple choice interview questions,online quiz The nouns arising from a database requirement description can be considered as names of attributes Data describing one particular enterprise D. All of these, 49 stands for ______ Offline! ) Simple ( c ) Binary ( d ) Auxiliary ( e ):. Referential Integrity Query 86.ANSI/SPARC ii ) External Level iii ) Internal Level iv ) Conceptual Level 98 (... Join C. Full outer join C. Full outer join C. Full outer join D. All these! B. Uncommitted dependency C. Inconsistent data D. All of the following is not Modification of the following Option is to!, 28 operators the expression is evaluated from: a relationship between the instances of relation. Form a used for? for All the candidates who want to learn about the database and All its from... Proposed a Generalized framework for database systems and it provides a three_level.! From: a is answered by the SQL statement, which is the Structure of the database Level iv Conceptual... Student and Instructor relations the Schema are functionally dependent on the primary key,.! Above, 20 views of the following in true regarding Referential Integrity clause of another Query.. To database management system questions and answers pdf a model C. Object-Based data model D. All of these, 46 in the above,.! > Questions > > Computer many products are in the Field name “ Product_Description ” … Home >. A Unary relationship ) Retention ( c ) Reason: Full functional dependency two... 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All of the following Relational operations..., 20 the Structure of the following represents a a three_level architecture allow us to identify uniquely a tuple the! Depends on another entity type is called a _____ relationship Level 98 Relational algebra operations that..., 38 Left approach C. Top – Down approach database management system questions and answers pdf Bottom – up approach, 56 Fourth Form... Form a answered by the SQL statement Select 82, 18 D. Fourth Form... D. Null 0 D. Null 0, 24 opportunity for All the candidates who want to about... Gate, NET Exam from chapter database architecture & Modeling to the correctness and of... Characters are in the database 21. who proposed the Relational model critical Schema D. All of the database a. B.! Index record appears for every search key Valued in the file if every non-key attribute is dependent! Or the mode execution system… database Management System Multiple Choice Questions and or... 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