(a) i. Which of the following is Relation-algebra Operation Group By d. None of these, Answers :- Secondary index D. Updating, 19. 93. 0000014224 00000 n Database tuning: The DBA is responsible for evolving the database… (b) (e) (e) Recovery. Database Management Short Questions to test Database concept : DBMS is the short form of Database Management System.DBMS is a collection of computer programs that helps us to create and manage database. C. Tuple A Table Reason : Employee(EmpID, BirthDate, Salary, Name(FirstName, MiddleName, LastName),SupervisorID) is the possible relation if the given ERD is mapped into a relational data model. Which of the following is not a Storage Manager Component? Reason : i).ANSI/SPARC ii) External Level iii)Internal Level iv) Conceptual Level Answer : (d) Which of the following is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released? (d) Database Management System C. Database Snapshot (d) Right outer join External Level This quiz consist of database management DBMS quiz questions in the form of multiple choice out of which only one option is correct.These questions should be prepared for various competitive exam. A command to remove a relation from an SQL database Select Count (Product_Description) from Product_T; (b) D. Every foreign-key value must match a foreign-key value in an associated table, Answers :- Independent. Select the correct statement from the following on proper naming of schema constructs: Database management system multiple choice questions and answers PDF exam book to download is a revision guide with collection of trivia quiz questions and answers on topics: Data modeling, entity relationship model, database concepts and architecture, database design methodology and UML diagrams, database management … (e) Super query 68. B. A. Delete table Flexibility What does the following SQL statement do? D. Attribute keys, 18. In an SQL statement, which of the following parts states the conditions for row selection? What is Database Management System (DBMS)? Instructor – Student. D. it takes a single value and returns a single value as result, 29. Time stamp ordering protocol Repository of meta data, which is a central storehouse for all data definitions, data relationships, d. Fourth, 50. Data Structure Answer : (e) C. Select C. Weak entity set 64. (e) BCNF is a fourth normal form. In mathematical term Table is referred as Middle of the above. Reason: The protocol that ensures conflict serializability is time stamp ordering protocol. A. Deletion Supervisor (SupervisorID, BirthDate, Salary, Name(FirstName, MiddleName, LastName),EmpID), {EmpID}) 100 top DBMS multiple choice questions and answers PDF for freshers and experienced. Reason : Full functional dependency is applicable with respect to 2NF. (b) Functional dependency Selects all the fields from the Customer table for each row with a customer labeled “best” 87. A. Field-level lock Each mcq has 4 possible answers. (d) 97. (d) The top of the tree (b) (d) A Relation is a B. B. Row-level lock Two phase lock (d) Three Phase lock. Ans: A super key is a set of attributes of a relation schema upon which all attributes of the schema are functionally dependent. Provide rapid, random and sequential access to base-table data Collection of interrelated data We are answering all the questions on the database … The bottom of the tree An index record appears for every search key value in the file is C. Third Normal Form Home >> Questions>> Computer. Fname : Database that contains occurrences of logically organised data or information 801 0 obj << /Linearized 1 /O 803 /H [ 827 7094 ] /L 1008394 /E 19037 /N 229 /T 992255 >> endobj xref 801 20 0000000016 00000 n B. B. Insertion of new information into the Database Computer Basics Advanced Computer Questions … Snapshot of the dta in the database at a given instant of time is called Which of the following is correct regarding Aggregate functions? D. All of the above, 4. Double click to Download PDF … 88. Primary key Reason: Data integrity is a component of the relational data model included to specify business rules to maintain the integrity of data when they are manipulated Database Instance Conceptual Level. Decrease the cost of implementation. C. Buffer Manager iv. (a) (a) 82. Select Union A. (c) Answer : (d) 76. D. Bottom – Up approach, 56. A. Transitive dependency Durability Integrity (b) C. Multi-valued Attribute (c) B. (e) Answer : (a) Cross-function (b) C. Logical View Multiple partition query 1 – C / 2 – B / 3 – A / 4 – D / 5 – B / 6 – C / 7 – D / 8 – B / 9 – A / 10 – C, 41. Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with Each entity must include some descriptive information Answer : (a) Reason: A property or characteristic of an entity type that is of interest to the organization is called attribute (c) D. Charles Babbage, 22. B. Sub query 79. Exclusive lock (e) (e) Relation (b) View Answer Discuss. Which of the following is not a level of data abstraction? (a) B. The left side of the tree (d) Answer : (e) Universal Modeling Language C. Every foreign-key value must match a primary-key value in an associated table (d) Download Database Management Systems Notes, PDF [2021] syllabus, books for B Tech, M Tech, BCA. Application programs that are used to provide information to users 93. (d) Multiplication and Division (a) Co-related query. First Answer : (a) 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? Reason: Security 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. 63. Attributes Answer : (c) Variant B. Subset of a Cartesian product of a list of domains (b) Which algebra is widely used in DBMS? A. Query optimization c. Primitive operation (c) The protocol that ensures conflict serializability is 78. Introduction to Database Systems 3 Answer 1.5 The DBA is responsible for: Designing the logical and physical schemas, as well as widely-used portions of the external schema. In the narrative description of the database requirements, verbs tend to indicate the names of A transaction completes its execution is said to be Which of the following is a component of the relational data model included to specify business rules to maintain the integrity of data when they are manipulated? 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 Reason: In an SQL statement where clause states the conditions for row selection B. A table that displays data redundancies yields ____________ anomalies Database Management System – Short Question And Answer PDF If you have any Questions regarding this free Computer Science tutorials ,Short Questions and Answers,Multiple choice Questions And Answers … Collection of programs to access data C. Relation (b) The FDs that hold for attributes of a relation need not be satisfied at all times C. Database Schema b. Schema At least one subtype Provide a quicker way to store data Record controller iv. Database management system multiple choice questions and answers PDF exam book to download is a revision guide with collection of trivia quiz questions and answers on topics: Data modeling, entity relationship model, database concepts and architecture, database design methodology and UML diagrams, database management … (c) 0000008246 00000 n Logical Manager Middleware. Database Management System (DBMS) Questions and Answers . Answer : (b) (a) Reason: A null value is created or represented by Pressing the Enter key without making a prior entry of any kind Functional dependencies may be determined if we are given several instances of a relation Reason: A functional dependency between two or more non-key attributes is called transitive dependency Relationship A. (a) iii. (a) D. Multi-valued attributes, 34. The various relationships of database are: One-to-one: … (a) a. Normalization (114) Database Quizzes (68) Distributed Database (51) Machine Learning Quiz (45) NLP (44) Question Bank (36) Data Structures (34) ER Model (33) Solved Exercises (33) DBMS Question Paper (29) NLP Quiz Questions (25) Transaction Management (25) Real Time Database (22) Minimal cover (20) SQL (20) Parallel Database … a. Non Null Network Maintenance In DBMS FD stands for _______ Instructor A. Which of the following Relational Algebra operations require that both tables (or virtual tables) involved have the exact same attributes/data types? Partial transitive dependency D. Domain, 16. Each multivalued attribute should be classified as an entity even if it does not have any descriptive information 79. Which of the following option is use to retrieval of data? Answer : (b) C. Rename How many different columns named “Product Description” is there in table Product_T? D. All of the above, 26. D. Tables, 5. A. Entity-Relationship model 66. K is a key for some other relation 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. C. Table-level lock c. Third C. Relationship sets (e) H��U�[X��4�1J�fQT�=S2SD3PT�\s(c��yLG+�$LQ!S3s+1-\�J��qA\r)�%��%-���yf���. Integrity Control. (e) At most two super types Divide the data up by logical groups of entities Divide the data up by logical frames. C. A Field (a) (a) C. Query Language Selects the “*” field from the Customer table for each row with a customer labeled “best” 84. Easy of use. c. Facilitate dependency B. B. Insertion of new information into the database 84. 0000008079 00000 n Database Management System solved MCQ sets : Database Management Short Questions to test Database concept : DBMS is the short form of Database Management System.DBMS is a collection of computer programs that helps us to create and manage database. Reason: The procedure of identifying entities and attaching attributes always leads to a unique solution (d) 0000008765 00000 n (c) All of the following are advantages of SQL-invoked routines EXCEPT (d) ii. Answer : (b) Unified Modeling Language iii. A functional dependency between two or more non-key attributes is called (b) UML is stands for System View (e) (c) A type of query that is placed within a WHERE or HAVING clause of another query is called 77. How many characters are in the field name “Product_Description”? (d) Clustered (d) (e) (d) An entity type whose existence depends on another entity type is called a _____ entity. Which of the following is Database Language? (d) D. Data independence, 57. B. E.F. Codd A null value is created or represented by D. Domain, 13. (b) B. Here, i am sharing with you some important Database Management System MCQ's type questions answers. What is MS-Access? Minus, Multiplication, Intersection C. Domain keys b. Knowing the value of attribute B you can look up the value of attribute A (b) Which of the following questions is answered by the SQL statement? (a) B. (a) DBMS MCQ Question with Answer ... Download DBMS MCQ Question Answer PDF ... A relational database developer refers to a record as . (c) Internal Level Each question has its accurate & detailed answers … A. (d) If an object only requires an identifier, it should be classified as an attribute Left outer join Required fields are marked *. Relation D. Schema, 23 primary-key value must match a primary-key value match... To be a in an SQL statement, which of the above, 9 list Query... Select 82 appears for every search key Valued in the database a. Delete <. Diamonds ” represents a, 58 … 1 is applicable with respect to 2NF, 49 b. E ) Middleware Answers PDF of records Sub-query that is required by a user perform... The Product table, 24.ANSI/SPARC ii ) External Level iii ) Internal iv... Same attributes/data types database locking concept is applicable with respect to 2NF, 28 given instant of time is a. Integrity ( b ) from ( c ) Codependent ( d ) Reason: Select.... 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