Is it true or false that a relational database typically consists of related two dimensional tables?

Is it true or false that a relational database typically consists of related two dimensional tables?
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Which of the following describes a relational database? 1) It provides a relationship between integers 2) It consists of separate tables or related data 3) It retrieves data related to its queries 4) It provides a relationship between floats

Description : Which of the following describes a relational database? 1) It provides a relationship between integers 2) It consists of separate tables or related data 3) It retrieves data related to its queries 4) It provides a relationship between floats

Last Answer : 2) It consists of separate tables or related data

The relational model is based on the concept that data is organized and stored in two-dimensional tables called ………………………A) Fields B) Records C) Relations D) Keys

Description : The relational model is based on the concept that data is organized and stored in two-dimensional tables called ………………………A) Fields B) Records C) Relations D) Keys

Last Answer : C) Relations

How are relationship between tables expressed in a relational database?

Description : How are relationship between tables expressed in a relational database?

Last Answer : Tables are the basic building blocks of a relationaldatabase.

A relational database management (RDBM) package manages datain morethan one file at once. How does itorganizethese file? As A. tables B. relations C. tuple D. both (a)and (b) E. None of the above

Description : A relational database management (RDBM) package manages datain morethan one file at once. How does itorganizethese file? As A. tables B. relations C. tuple D. both (a)and (b) E. None of the above

Last Answer : both (a)and (b)

A database is typically composed of one or more: a) Columns b) Files c) Rows d) Tables e) None of These

Description : A database is typically composed of one or more: a) Columns b) Files c) Rows d) Tables e) None of These

Last Answer : d) Tables

Which of the following statements concerning Object-Oriented databases is FALSE? (A) Objects in an object-oriented database contain not only data but also methods for processing the data. (B) Object-oriented databases store computational instructions in the same place as the data. (C) Object-oriented databases are more adapt at handling structures (analytical) data than relational databases. (D) Object-oriented databases store more types of data than relational databases and access that data faster.

Description : Which of the following statements concerning Object-Oriented databases is FALSE? (A) Objects in an object-oriented database contain not only data but also methods for processing the data. (B ... Object-oriented databases store more types of data than relational databases and access that data faster.

Last Answer : (C) Object-oriented databases are more adapt at handling structures (analytical) data than relational databases.

Let E1 and E2 be two entities in E-R diagram with simple single valued attributes. R1 and R2 are two relationships between E1 and E2 where R1 is one-many and R2 is many-many. R1 and R2 do not have any attributes of their own. How many minimum number of tables are required to represent this situation in the Relational Model? (A) 4 (B) 3 (C) 2 (D) 1

Description : Let E1 and E2 be two entities in E-R diagram with simple single valued attributes. R1 and R2 are two relationships between E1 and E2 where R1 is one-many and R2 is many-many. R1 and R2 do not have any ... are required to represent this situation in the Relational Model? (A) 4 (B) 3 (C) 2 (D) 1

Last Answer : (B) 3 

Let M and N be two entities in an E-R diagram with simple single vale attributes. R1 and R2 are two relationship between M and N, whereas R1 is one-to-many and R2 is many-to-many. The minimum number of tables required to represent M, N, R1 and R2 in the relational model are .......... (1) 4 (2) 6 (3) 7 (4) 3

Description : Let M and N be two entities in an E-R diagram with simple single vale attributes. R1 and R2 are two relationship between M and N, whereas R1 is one-to-many and R2 is many-to-many. The minimum number of tables required to ... and R2 in the relational model are .......... (1) 4 (2) 6 (3) 7 (4) 3

Last Answer : Answer: 4

In a relational model, relations are termed as (A) Tuples. (B) Attributes (C) Tables. (D) Rows.

Description : In a relational model, relations are termed as (A) Tuples. (B) Attributes (C) Tables. (D) Rows.

Last Answer : (C) Tables

In the relational modes, cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints

Description : In the relational modes, cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints

Last Answer : (A) Number of tuples

RDBMS provides relational operators to manipulate the data. Here, RDBMS refers to (a) Record Database Management System -Technology

Description : RDBMS provides relational operators to manipulate the data. Here, RDBMS refers to (a) Record Database Management System -Technology

Last Answer : (b) RDBMS stands for Relational Database Management System, which provides the operator to manipulate the data stored in the database table.

What is Relational Database Management System ?

Description : What is Relational Database Management System ?

Last Answer : Database databases are organized in different rows, that is, files are considered only in records, but also in tables with list rows and columns. This type of database is called relational database management system.

In a relational database, this is a data structure that organizes the information about a single topic into rows and columns. 1) Block 2) Record 3) Tuple 4) Table 5) Command line interface

Description : In a relational database, this is a data structure that organizes the information about a single topic into rows and columns. 1) Block 2) Record 3) Tuple 4) Table 5) Command line interface

Last Answer : Answer :4

Which of the following genres does Hadoop produce? a) Distributed file system b) JAX-RS c) Java Message Service d) Relational Database Management System

Description : Which of the following genres does Hadoop produce? a) Distributed file system b) JAX-RS c) Java Message Service d) Relational Database Management System

Last Answer : Distributed file system

Which of the following allows you to create instances of the MySQL database to support your Web sites? a) Amazon Elastic Compute Cloud b) Amazon Simple Queue Service c) Amazon Relational Database Service d) Amazon Simple Storage System

Description : Which of the following allows you to create instances of the MySQL database to support your Web sites? a) Amazon Elastic Compute Cloud b) Amazon Simple Queue Service c) Amazon Relational Database Service d) Amazon Simple Storage System

Last Answer : Amazon Relational Database Service

Which of the following is an edge-storage or content-delivery system that caches data in different physical locations? a) Amazon Relational Database Service b) Amazon SimpleDBc) Amazon Cloudfront d) Amazon Associates Web Services

Description : Which of the following is an edge-storage or content-delivery system that caches data in different physical locations? a) Amazon Relational Database Service b) Amazon SimpleDB c) Amazon Cloudfront d) Amazon Associates Web Services

Last Answer : Amazon Cloudfront

The Relational Model Database:

Description : The Relational Model Database:

Last Answer : The relational model is the most popular type of database and an extremely powerful tool, not only to store information, but to access it as well. Relational databases are organized as tables. The ... reorganizing the tables. A table can have many records and each record can have many fields.

n(log n) is referred to A. A measure of the desired maximal complexity of data mining algorithms B. A database containing volatile data used for the daily operation of an organization C. Relational database management system D. None of these

Description : n(log n) is referred to A. A measure of the desired maximal complexity of data mining algorithms B. A database containing volatile data used for the daily operation of an organization C. Relational database management system D. None of these

Last Answer : A. A measure of the desired maximal complexity of data mining algorithms

Which of the following is not a logical database structure? A) Chain B) Network C) Tree D) Relational

Description : Which of the following is not a logical database structure? A) Chain B) Network C) Tree D) Relational

Last Answer : A) Chain

A top-to-bottom relationship among the items in a database is established by a A) Hierarchical schema B) Network schema C) Relational Schema D) All of the above

Description : A top-to-bottom relationship among the items in a database is established by a A) Hierarchical schema B) Network schema C) Relational Schema D) All of the above

Last Answer : A) Hierarchical schema

A relational database developer refers to a record as (A) a criteria. (B) a relation. (C) a tuple. (D) an attribute.

Description : A relational database developer refers to a record as (A) a criteria. (B) a relation. (C) a tuple. (D) an attribute.

Last Answer : C) a tuple

Which of the following is not a type of Database Management System? (A) Hierarchical (B) Network (C) Relational (D) Sequential

Description : Which of the following is not a type of Database Management System? (A) Hierarchical (B) Network (C) Relational (D) Sequential 

Last Answer : (D) Sequential

In a relational database model, NULL values can be used for all but which one of the following? (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL. (B) To avoid confusion with actual legitimate data values like 0 (zero) for integer columns and ‘’ (the empty string) for string columns. (C) To leave columns in a tuple marked as “unknown” when the actual value is unknown. (D) To fill a column in a tuple when that column does not really “exist” for that particular tuple.

Description : In a relational database model, NULL values can be used for all but which one of the following? (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL. (B) To ... D) To fill a column in a tuple when that column does not really exist for that particular tuple.

Last Answer : (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL.

Relational database schema normalization is NOT for: (A) reducing the number of joins required to satisfy a query. (B) eliminating uncontrolled redundancy of data stored in the database. (C) eliminating number of anomalies that could otherwise occur with inserts and deletes. (D) ensuring that functional dependencies are enforced.

Description : Relational database schema normalization is NOT for: (A) reducing the number of joins required to satisfy a query. (B) eliminating uncontrolled redundancy of data stored in the database. (C) ... could otherwise occur with inserts and deletes. (D) ensuring that functional dependencies are enforced. 

Last Answer : reducing the number of joins required to satisfy a query.

The database in which records are organised in a tree-like structure is (1) Network database (2) Hierarchical database (3) Relational database (4) Object-oriented database

Description : The database in which records are organised in a tree-like structure is (1) Network database (2) Hierarchical database (3) Relational database (4) Object-oriented database

Last Answer : Hierarchical database

Expansion of RDBMS is (1) Repairable Database Management System (2) Relational Database Management System (3) Relational Database Memory System (4) Recurring Database Memory System

Description : Expansion of RDBMS is (1) Repairable Database Management System (2) Relational Database Management System (3) Relational Database Memory System (4) Recurring Database Memory System 

Last Answer : Relational Database Management System

Distinguish between network database model and relational database model.

Description : Distinguish between network database model and relational database model. 

Last Answer : Network database model Relational database model Relationship between records is expressed in the form of pointers or links Relationship between records is represented by a relation that contains a key for ... logically in the form of rows and columns. Example:  Example: 

In relational table two row are identical is true or false?

Description : In relational table two row are identical is true or false?

Last Answer : False.

Like relational databases there does exists fuzzy relational databases. a) True b) False

Description : Like relational databases there does exists fuzzy relational databases. a) True b) False

Last Answer : a) True

<Condition>isa__ expression which will have value true or false. a. Relational b. Logical ce. Botha&b d. None of these

Description : isa__ expression which will have value true or false. a. Relational b. Logical ce. Botha&b d. None of these

Last Answer : ce. Botha&b

Like relational databases there does exists fuzzy relational databases. a) True b) False

Description : Like relational databases there does exists fuzzy relational databases. a) True b) False

Last Answer : a) True

In a Database Managemnt System (DBMS), the content and the location of the data is defined by the ____. (1) Multi Dimensional data (2) Sequence data (3) Meta data (4) Sub data

Description : In a Database Managemnt System (DBMS), the content and the location of the data is defined by the ____. (1) Multi Dimensional data (2) Sequence data (3) Meta data (4) Sub data

Last Answer : Meta data

In a Bank’s database, there are two tables ‘Customer’ and ‘Transaction’ as shown below. -Technology

Description : In a Bank’s database, there are two tables ‘Customer’ and ‘Transaction’ as shown below. -Technology

Last Answer : (i)Acc_No, Cust_Phone(ii)All the columns having capability to become Primary Key are known as Candidate Keys.(iii)Acc_No(iv)Trans_Id

In a Bank’s database, there are two tables ‘Customer’ and ‘Transaction’ as shown below. Write a query to display customer’s name who has -Technology

Description : In a Bank’s database, there are two tables ‘Customer’ and ‘Transaction’ as shown below. Write a query to display customer’s name who has -Technology

Last Answer : (i) Select cust_name from customer c,transaction t where c.Acc_No=t.Acc_No and Transaction_Type= 'Debit';(ii)Select cust_name, t.* from customer c, transaction t where c.Acc_No=t.Acc_No;(iii) ... total amount of all type of transactions, it will only display the total of credit transactions only.

What are two virtual tables available during database trigger execution ?

Description : What are two virtual tables available during database trigger execution ?

Last Answer : The table columns are referred as OLD.column_name and NEW.column_name. For triggers related to INSERT only NEW.column_name values only available. For triggers related to UPDATE only OLD. ... values only available. For triggers related to DELETE only OLD.column_name values only available.

Database is made up of all the following components except (a) tables (b) queries -Technology

Description : Database is made up of all the following components except (a) tables (b) queries -Technology

Last Answer : (d) A database is made up of tables, queries, and forms.

A database that contains tables linked by common fields is called a (a) Centralized database (b) Flat file database -Technology

Description : A database that contains tables linked by common fields is called a (a) Centralized database (b) Flat file database -Technology

Last Answer : (c) Relational database stores data in the form of tables which are linked by common fields.

In a MS_Access database, which component is not present? (a) Formula Bar (b) Tables -Technology

Description : In a MS_Access database, which component is not present? (a) Formula Bar (b) Tables -Technology

Last Answer : (a) MS-Access contains various components, i.e. Tables, Queries, Forms, Reports, Macros and Modules.

What is the difference between tables and form database objects?

Description : What is the difference between tables and form database objects?

Last Answer : Database table objects store data. Form objects used byapplications provide a visually pleasing or sensible way ofaccessing or updating data contained in the database tables. Thismeans that the form object is a display specification.

What are the dictionary tables used to monitor a database space?

Description : What are the dictionary tables used to monitor a database space?

Last Answer : DBA_FREE_SPACE DBA_SEGMENTS DBA_DATA_FILES.

What are the dictionary tables used to monitor a database spaces ?

Description : What are the dictionary tables used to monitor a database spaces ?

Last Answer : DBA_FREE_SPACE DBA_SEGMENTS DBA_DATA_FILES.

Upper CASE tools are used to create diagrams and generate code for database tables system functionality during the design phase.

Description : Upper CASE tools are used to create diagrams and generate code for database tables  system functionality during the design phase.

Last Answer : Ans: False

Which of the following is included in the database collection: a) Schemes, Tables, Queries b) Queries, Report, Views and other Objects c) Both of Above d) None of These

Description : Which of the following is included in the database collection: a) Schemes, Tables, Queries b) Queries, Report, Views and other Objects c) Both of Above d) None of These

Last Answer : c) Both of Above

Distance vector routing algorithm is a dynamic routing algorithm. The routing tables in distance vector routing algorithm are updated ........... (1) automatically (2) by server (3) by exchanging information with neighbour nodes. (4) with back up database

Description : Distance vector routing algorithm is a dynamic routing algorithm. The routing tables in distance vector routing algorithm are updated ........... (1) automatically (2) by server (3) by exchanging information with neighbour nodes. (4) with back up database

Last Answer : Answer: 3

The volume integral is three dimensional. State True/False a) True b) False

Description : The volume integral is three dimensional. State True/False a) True b) False

Last Answer : a) True

Optical fibers for telecommunications are typically about _____ mils thick and consists of a glass core, a glass cladding of lower index of refraction, and a protective coating ∙ a. 5 ∙ b. 6 ∙ c. 7 ∙ d. 8

Description : Optical fibers for telecommunications are typically about _____ mils thick and consists of a glass core, a glass cladding of lower index of refraction, and a protective coating ∙ a. 5 ∙ b. 6 ∙ c. 7 ∙ d. 8

Last Answer : ∙ a. 5

______ consists of communication protocols for electronic devices, typically a mobile device and a standard device. A. RFID B. MQTT C. NFC D. None of above

Description : ______ consists of communication protocols for electronic devices, typically a mobile device and a standard device. A. RFID B. MQTT C. NFC D. None of above

Last Answer : C. NFC 

…………………… is the process of organizing data into related tables. A) Normalization B) Generalization C) Specialization D) None of the above

Description : …………………… is the process of organizing data into related tables. A) Normalization B) Generalization C) Specialization D) None of the above

Last Answer : A