Supervisor (SupervisorID, BirthDate, Salary, Name(FirstName, MiddleName, LastName),EmpID), {EmpID}) H��U�[X��4�1J�fQT�=S2SD3PT�\s(c��yLG+�$LQ!S3s+1-\�J��qA\r)�%��%-���yf���. 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 Database management system objective questions and answers page contain 5 questions from chapter Database Security & Integrity. 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 D. All of the above, 11. 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. Update A. Deletion Out of the following activities, which is the one that normally performed by DBMS, without the interference of the DBA? Join, Projection, Restriction Variant C. Relationship sets 63. Bitmap 82. D. View Level, 3. 89. Answer : (a) Which of the following is not Unary operation? 96. In mathematical term Table is referred as D. Authorization for data access, 10. Here we go!! What is ACID properties of Transactions? 87. Single-valued 63. Attributes The nouns arising from a database requirement description can be considered as names of attributes What does the following SQL statement do? (b) (e) 74. d. Projection operation, 45. (d) In an Entity-Relationship Diagram “Diamonds” represents The right side of the tree An index record appears for every search key value in the file is Second What is the extension of Access database file? External Level Answer : (a) 97. Where. Bill Gates Conceptual Level D a relation . (b) Using the EMBED key word in a SQL statement Reason: Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with. Select (d) B. Top-down approach C. Master query Saved DATABASE MANAGEMENT SYSTEM Questions and Answers pdf free download,DBMS objective type Questions and Answers,multiple choice interview questions,online quiz The defines the logical schema of the database.” 70. (a) Efficiency D. Updating, 19. 78. If a relation has no redundant information its attributes must not have any function dependencies (d) UML is stands for (d) (a) Dense index B. Domain B. (d) C. Relation ... management system or the mode execution system… D. Automatically, Concurrency, Isolation, Durability, 36. Which of the following type of index is automatically created when we do not specify? 94. d. Right to Left, 47. Data Manipulation Language Granting the Privileges Weak Select the correct statement from the following on proper naming of schema constructs: Which of the following in not a function of DBA? Partial transitive dependency 85. (e) B. At most two super types (d) We are answering all the questions on the database … 0000015984 00000 n Reason: Indexes are created in most RDBMS’s to Provide rapid, random and sequential access to base-table data c. Third In a super type/subtype hierarchy, each subtype has (a) Gamage A table that displays data redundancies yields ____________ anomalies C. Buffer Manager (b) (d) (a) (c) (b) Conceptual Level. D. Domain, 15. B. Consider the following ER diagram depicting the relationship of an employee and supervisor: What is the possible relation if the above ERD is mapped into a relational model? (a) (c) 1 4. (d) C. Select One big table with all attributes from both entities included D. All of the above, 38. (c) The of the architecture defines user views of the database. (e) Here, i am sharing with you some important Database Management System MCQ's type questions answers. Collection of interrelated data Academia.edu is a platform for academics to share research papers. Provide rapid, random and sequential access to base-table data (c) Answer : (c) C. Table-level lock 80. 0000008246 00000 n Entity type name applies to all the entities belonging to that entity type and therefore a plural name is selected for entity type Which of the following is an unary operation? A. Selects fields with a “*” in them from the Customer table (c) If an object only requires an identifier, it should be classified as an attribute 0000016063 00000 n B a tuple . 0000012032 00000 n Employee (EmpID, BirthDate, Salary, Name(FirstName, MiddleName, LastName), SupervisorID). Which of the following option is use to retrieval of data? Reason: How many different product descriptions are in the Product Table? 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 … Instructor 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 … More Topics. A. Retrieval of information stored in database The various relationships of database are: One-to-one: … Alter Table Multi-valued (c) Which of the following in true regarding Null Value? C. Candidate key C. Atomicity, Consistency, Inconsistent, Durability (a) Universal Modeling Language Attribute Reason : Full functional dependency is applicable with respect to 2NF. (c) Second (e) D. it takes a single value and returns a single value as result, 29. D. Data independence, 57. Auxiliary Each entity must include some descriptive information (e) a. (b) (b) Multi-query 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 Easy of use. Unified Modeling Language Divide the data up by logical groups of files (d) DBMS MCQ Question with Answer ... Download DBMS MCQ Question Answer PDF ... A relational database developer refers to a record as . 77. Pressing the Enter key without making a prior entry of any kind. Durability (c) 1 – d / 2 – c / 3 – a / 4 – b / 5 – c / 6 – b / 7 – d / 8 – d / 9 – d / 10 – b, 51. Physical Level D. Fourth Formal Form, 37. Counts all records and displays the value. Increase the cost of implementation Oriented database connection iii. (e) You do not need to know the value of attribute A in order to look up the value of attribute B (e) C. Functional dependency Application programs that are used to provide information to users Backwards approach (c) D. Partial functional dependency, 54. Transaction Manager (a) In an Entity-Relationship Diagram Rectangles represents C. Every foreign-key value must match a primary-key value in an associated table Reason: The protocol that ensures conflict serializability is time stamp ordering protocol. 83. (a) Independent. Deadlock. Reason: Hash file is easiest to update Data integrity Here you can download the free Database Management System Pdf Notes – DBMS Notes Pdf latest and Old materials with multiple file links. Unique Divide the data up by logical groups of records D. Multi-valued attributes, 34. Binary (d) (b) (e) C. Set Difference (c) Non-transitive dependency 1 2. Kasun. Database Management System MCQ DBMS MCQ Questions Answers Download PDF. Ans: A super key is a set of attributes of a relation schema upon which all attributes of the schema are functionally dependent. ii. (b) Decrease the cost of implementation. 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? 86. Integrity Control. A logical description of some portion of database that is required by a user to perform task is called as B. iii. Internal Level How many total records in a table? First How many products are in the Product Table? B. (e) A. C. Critical Schema Atomicity Snapshot of the dta in the database at a given instant of time is called Business integrity Foreign key added on the Child (many side) referencing the parent B. it takes a list of values and return a list of values as result (d) Exclusive lock Answer : (b) Query Execution. (a) C. Logical View B. Which of the following is correct? The minimal set of super key is called Reason: Recovery is the one that normally is performed by DBMS, without the interference of the DBA (e) 68. Database is collection of data and Managing database … Conceptual Level Every primary-key value must match a foreign-key value in an associated table B. Insertion of new information into the database Authorization rule Clustered (e) Which of the following is a Data Model? Reason: Composite attribute is an attribute that can be further subdivided to yield additional attributes. 71. (e) None of the above. Functional dependency a. Relational algebra Computer Basics Advanced Computer Questions … Questions 81 To 90 Answer : (e) c. Open database connection Making a change to the conceptual schema of a database but not affecting the existing external schemas is an example of Routine Maintenance (b) Answer : (c) Which SQL Query is use to remove a table and all its data from the database? D. All of the above, 58. Answer : (b) Logical design of database is called trailer << /Size 821 /Info 799 0 R /Root 802 0 R /Prev 992244 /ID[] >> startxref 0 %%EOF 802 0 obj << /Type /Catalog /Pages 783 0 R /Metadata 800 0 R >> endobj 819 0 obj << /S 9009 /Filter /FlateDecode /Length 820 0 R >> stream Data integrity A. D. All of the above, 9. Reason : i).ANSI/SPARC ii) External Level iii)Internal Level iv) Conceptual Level (c) 97. Sparse Index. d. None, 44. Difficulty in accessing data Knowing the value of attribute B you can look up the value of attribute A Transitive dependency (e) C. it takes a single value and returns a list of values as result (c) c. Linked list D. Option A and B, 30. Data Manipulation Language enables users to _____________ refers to the correctness and completeness of the data in a database? Reason: The procedure of identifying entities and attaching attributes always leads to a unique solution (a) Enlist the various relationships of database. 0000009510 00000 n Database Snapshot a. Stack 95. Reason: The hierarchical database model uses the hierarchic sequence that always starts at the left side of the tree. Which of the following concept is applicable with respect to 2NF? C. Database Snapshot 90. (a) Answer : (d) (b) B. Deletion (e) 98. Which of the following Relational Algebra operations require that both tables (or virtual tables) involved have the exact same attributes/data types? Unary. A. A. External Level Every tuple of R1 has a distinct value for K 84. (d) A Table 1 – C / 2 – B / 3 – A / 4 – B / 5 – C / 6 – B / 7 – D / 8 – A / 9 – B / 10 – D. 61. 0000000751 00000 n A. Answer : (a) 72. 88. Super query Entering a value Answer : (c) Co-related query. B. B. Strong Reason: 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 parallel query processing. (c) (e) Ajith In precedence of set operators the expression is evaluated from: 0000008765 00000 n (e) Indexes are created in most RDBMS’s to Second Normal Form Your email address will not be published. Employee (EmpID, BirthDate, Salary, Name(FirstName, MiddleName, LastName)} What is Database Management System (DBMS)? Answer : (b) iii. (c) A. Schema keys a. A type of query that is placed within a WHERE or HAVING clause of another query is called Two phase locking protocol A. Delete table A functional dependency between two or more non-key attributes is called External Level Physical data independence Select * From Customer Where Cust_Type = “Best”; Divide the data up by logical groups of attributes Answer : (a) B. 75. (a) B. A. Attribute (d) Reason: Sub-query that is placed within a WHERE or HAVING clause of another query (c) Each multivalued attribute should be classified as an entity even if it does not have any descriptive information (a) Selects all the fields from the Customer table for each row with a customer labeled “best” b. Functional data Database Schema i. ANSI/ARPANET Divide the data up by logical groups of entities Which of the following is not an Schema? Your email address will not be published. Answer : (a) 79. The attribute that can be divided into other attributes is called Which algebra is widely used in DBMS? Which of the following is Database Language? (a) D. Cartesian Product, 28. (e) BCNF is a fourth normal form. D. Attribute keys, 18. (c) 1 3. In the context of a database table, the statement “A determines B” indicates that First Normal Form c. Primitive operation K cannot have a null value for tuples in R1 (a) Data independence. A. A. Reason: Security Pressing the ESC key Disk pages Correct Answer … Which of the following is not a Storage Manager Component? %PDF-1.2 %���� Master query (e) (d) Query optimization Required fields are marked *. Recovery. State the unit of storage that can store one or more records in a hash file organization Each mcq has 4 possible answers. 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 In an Entity-Relationship Diagram “Ellipses” represents Key dependency. Concurrency protocol Reason: A null value is created or represented by Pressing the Enter key without making a prior entry of any kind B. A. Lname : Random. C. Collection of data describing one particular enterprise Cross-function Entity Integrity. D. Charles Babbage, 22. If K is a foreign key in a relation R1, then Facilitate data C. Sorting (d) (e) Critical Level 67. Union Network Maintenance Database Instance A Row What do you mean by data processing? D. Uni Modeling Language, 39. C. Query Language B. Hello Friends Here in this section of Database Management System Basics Short Questions Answers,We have listed out some of the important Short Questions with Answers which will help students to answer … Left outer join From Double click to Download PDF … Composite Attribute C. Data constraint Data Definition Language Student n Instructor Choose your answer and check it with the given correct answer. (e) (a) Which of the following questions is answered by the SQL statement? 88. Multiplication and Division Answer : (b) B. b. Arithmetic algebra C. Rename 89. (b) ii. Primary Key is added on one side. D. All of the above, 26. (d) Non Null Parallel query processing Database locking concept is used to solve the problem of (b) A type of query that is placed within a WHERE or HAVING clause of another query is called How many characters are in the field name “Product_Description”? D. Foreign key, 52. 0000000827 00000 n B. A. Concurrency Control Reason: A functional dependency between two or more non-key attributes is called transitive dependency (b) The procedure of identifying entities and attaching attributes always leads to a unique solution (e) Retention d. None of these, Answers :- (a) D. BCNF, 53. 76. a. Offline database connection 90. Horizontal Fragmentation is Home >> Questions>> Computer. d. Query, 42. (d) C. Attributes Answer : (a) Questions on Indexing and Hashing. Column header is refer as Foreign key added on both sides (both tables) Embedded SQL means Consistency Physical Schema Attributes Reason: Divide the data up by logical groups of records. A. 81. Data availability and recovery from failures. Derived. Indexed (a) (5 points) Discuss two scenarios where a view can be helpful in a database man-agement system. A relationship between the instances of a single entity type is called a _____ relationship. 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? screen and report formats and other system components. Project 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. D. Logical Schema, 8. Relation Each question has its accurate & detailed answers … please allow to copy the contents in above. (b) (b) (c) A. B+ tree. 0000007921 00000 n Candidate key External Level Left to Left Many super types (c) Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with Three Phase lock. (c) First Which of the following is not binary operation? Which of the following is Relation-algebra Operation Reason: Entity type whose existence depends on another entity type is called a weak entity 76. All of the following are advantages of SQL-invoked routines EXCEPT B. (b) B. Subset of a Cartesian product of a list of domains Secondary key A. Which of the following set is suitable to fill the blanks in the above paragraph? Not at all. K is a Primary key for R1 100. Right outer join 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 D. All of the above, 4. A. Create Table 67. Attribute (b) Projection, Selection, Rename. 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