MySQL Enterprise and Administrative Account Quiz

Which one of the following is a key component of a database system that translates query processor instructions into low-level file-system commands that modify or retrieve data?

Which one of the following is a file containing a complete record of all inserts, updates, and deletes processed by the database?

Which one of the following is a directory of tables, columns, indexes, and other database objects?

Which one of the following is a common query language used for writing database queries?

Which one of the following is an SQL statement that inserts rows into a table?

Which one of the following is a specification of database objects such as tables, columns, data types, and indexes?

Which type of data is mostly digital in today's world?

What is a database system?

What is the role of a database administrator?

What is the purpose of a query language?

What is the role of a database designer?

What is the role of a database programmer?

Which of the following is a key feature of MySQL Enterprise?

What is the purpose of the root account in MySQL?

What is the MySQL Command-Line Client used for?

What does MySQL Server return when an SQL statement is syntactically incorrect or the database cannot execute the statement?

What is the purpose of MySQL Workbench?

Which of the following is a key feature of the relational model?

Which statement is true about primary keys?

What is the purpose of the TRUNCATE statement?

What is a foreign key?

Which action is specified by the ON UPDATE clause of a FOREIGN KEY constraint?

What does the UNIQUE constraint ensure?

What is a constraint in a database?

Which statement is true about the CREATE TABLE statement?

What is the purpose of the DROP TABLE statement?

What are the data types represented by Decimal?

What does the IS NULL operator do?

What does the LIMIT clause do in MySQL?

What does the SET clause do in an UPDATE statement?

Which one of the following is a key feature of MySQL Community?

Which one of the following is a key component of a database system that interprets queries, creates a plan to modify the database or retrieve data, and returns query results to the application?

What is the purpose of the UNIQUE constraint in a database?

Which one of the following is a common query language used for writing database queries?

What is the role of a database designer in the database design process?

Which SQL statement inserts rows into a table?

Which of the following is responsible for securing the database system against unauthorized users?

What is the primary role of a database designer?

Which type of data was mostly analog in the past?

What is the purpose of a query language?

What is the role of a database programmer?

What is the most common format for data encoding in today's world?

Which clause is used to specify a condition for selecting rows in a SELECT statement?

What is the purpose of the IS NULL operator in SQL?

Which statement is true about the NOT NULL constraint in SQL?

Which clause is used to add rows to a table in SQL?

What is the purpose of the SET clause in an UPDATE statement?

What is a NULL value in SQL?

Which statement is true about the MySQL Command-Line Client?

What is the purpose of the SHOW CREATE TABLE statement?

What is the purpose of the USE DatabaseName statement?

What is the purpose of the DROP DATABASE DatabaseName statement?

What is the purpose of the SHOW TABLES statement?

What is the purpose of the SHOW COLUMNS FROM TableName statement?

Which statement is true about referential integrity?

What is the purpose of the CASCADE action in a FOREIGN KEY constraint?

What is a primary key?

What does the TRUNCATE statement do?

What is a foreign key?

What is the purpose of the UNIQUE constraint?

Which operation combines two tables into one result, including all columns and all combinations of rows from both tables?

Which operation selects table columns?

Which operation selects table rows based on a logical expression?

Which operation is equivalent to a product followed by a select?

Which operation combines all rows of two compatible tables into a single table, excluding duplicate rows?

Which one of the following is a database operation that reads table blocks directly, without accessing an index?

Which one of the following is a single-level index that contains column values along with pointers to rows containing the column value?

Which one of the following is a multi-level index that stores column values and row pointers in a hierarchy?

Which one of the following is a balanced multi-level index where all branches are the same length?

Which one of the following is a hash index where index entries are assigned to buckets?

Which keyword represents the highest column value in a partition?

What type of partition requires a partition expression with positive integer values?

What is the partition number for each row computed as in a hash partition?

What does the physical design of a database specify?

What is the role of a storage engine or storage manager in a database system?

Which operator is used in a WHERE clause to determine if a value matches one of several values?

Which operator provides an alternative way to determine if a value is between two other values?

What is a self-join?

What is a cross-join?

What is a subquery, sometimes called a nested query or inner query?

Which normal form is achieved when every cell of a table contains exactly one value and the table has a primary key?

Which normal form is achieved when all non-key columns depend on the whole primary key?

Which normal form is achieved when all non-key columns depend on the key, the whole key, and nothing but the key?

Which normal form is achieved when, whenever a non-key column A depends on column B, then B is unique?

Which storage media is used to store large amounts of data and groups data in sectors?

Which of the following is true about cardinality in entity-relationship modeling?

What is the cardinality of a relationship when the maximum number of instances of one entity that can relate to a single instance of another entity is one?

What is the cardinality of a relationship when the minimum number of instances of one entity that can relate to a single instance of another entity is zero?

What is the identifying attribute of a weak entity?

What is a supertype entity in entity-relationship modeling?

Which one of the following is a database operation that reads table blocks directly, without accessing an index?

Which one of the following is a multi-level index that stores column values and row pointers in a hierarchy?

Which one of the following is a subset of table data, usually a subset of rows rather than columns, stored on different computers of a distributed database?

Which one of the following is a balanced multi-level index where all branches are the same length?

Which one of the following is a file containing column values, along with pointers to rows containing the column value?

Which operation in relational algebra combines two tables into one result, including all columns and all combinations of rows from both tables?

What is the purpose of the rename operation in relational algebra?

Which set operation in relational algebra combines all rows of two compatible tables into a single table, excluding duplicate rows?

What is the purpose of the aggregate operation in relational algebra?

In the entity-relationship model, what is an entity?

Which normal form is achieved when all non-key columns depend on the whole primary key?

What is the purpose of normalization in database design?

Which storage media is typically used as the primary memory when computer programs execute?

Which operator is used in a WHERE clause to determine if a value matches one of several values?

What is the purpose of denormalization in database design?

Which operator provides an alternative way to determine if a value is between two other values?

Which table structure imposes no order on the rows?

What is a self-join?

What is a cross-join?

What is a subquery, sometimes called a nested query or inner query?

Which keyword represents the highest column value in a partition?

What does a list partition associate each partition with?

What does a hash partition require for the partition expression?

What is the partition number for each row computed as in a hash partition?

What is the difference between a key partition and a hash partition?

Which of the following is true about cardinality in entity-relationship modeling?

What is the cardinality of a relationship when the maximum number of instances of one entity that can relate to a single instance of another entity is one?

What is an identifying attribute of an entity?

What is a strong entity in entity-relationship modeling?

What is a weak entity in entity-relationship modeling?

Which component of MySQL is responsible for managing connections from multiple users and compiling queries into low-level instructions for the storage engine?

What is the purpose of the Audit component in MySQL?

Which component of MySQL is responsible for executing instructions, managing indexes, and interacting with the file system?

What is the purpose of the Monitor component in MySQL?

What is the purpose of the Utility programs component in MySQL?

What is the purpose of a connection in MySQL?

What is an execution plan in MySQL?

Which type of database runs on multiple computers connected by a wide area network?

What is the purpose of the two-phase commit technique in distributed transactions?

In a distributed transaction, when does phase 2 begin?

What is the term used to describe updates in a distributed transaction that occur at the same time from the perspective of the database user?

What is the term used to describe databases that use local transactions instead of distributed transactions?

What is a replica in the context of replicated databases?

What is the purpose of the ETL process in data warehousing?

Which tier of a multi-tier architecture consists of servers managing resources like databases and email?

In a multi-tier architecture, what do the middle tiers execute?

What is the top tier of a web architecture responsible for?

What is the bottom tier of a web architecture composed of?

What does Infrastructure-as-a-service (IaaS) provide to customers?

What does Platform-as-a-service (PaaS) provide to customers?

What does Software-as-a-service (SaaS) provide to customers?

Which of the following best describes a fact table in a database system?

What type of data does a dimension table contain?

What is a dimension hierarchy in a database system?

How many rows would a date dimension table contain if an organization tracks data for 100 years?

How many rows would a time dimension table contain?

What is the type 2 design for slowly changing dimensions in a fact table?

What is an in-memory database?

What is an embedded database?

What is a federated database?

Which tier of a web architecture consists of computers interacting directly with end-users?

Which tier of a web architecture generates web pages for display on web browsers and transmits user requests to services running on lower tiers?

Which tier of a web architecture runs application software, processes user requests, and communicates with databases and other services?

Which tier of a web architecture comprises services such as database and authentication?

Which type of computer architecture consists of multiple processors managed by a single operating system instance?

In a shared memory computer, what do processors share?

In a shared storage computer, what do processors share?

Which component of MySQL is responsible for executing instructions, managing indexes, and interacting with the file system?

What is the purpose of the Monitor component in MySQL?

Which component of MySQL supports government and business audit requirements for sensitive databases?

What is the purpose of the Utility programs component in MySQL?

What is a connection in the context of MySQL?

What is an execution plan in MySQL?

What is the purpose of the MySQL Enterprise Edition?

Which of the following is true about a distributed transaction in a distributed database?

What is the purpose of the two-phase commit technique in distributed transactions?

What is the difference between synchronous updates and asynchronous updates in a distributed transaction?

What is the term used to describe databases that use local transactions instead of distributed transactions?

What is a replica in the context of replicated databases?

What is a data warehouse optimized for?

What is the purpose of the ETL process in data warehousing?

Which of the following best describes a fact table in a database system?

What is a dimension table in a database system?

What is a dimension hierarchy in a database system?

How many rows does a date dimension table contain if an organization tracks data for 100 years?

How many rows does a time dimension table contain?

What is the type 2 design for slowly changing dimensions in a fact table?

What is an in-memory database?

What is an embedded database?

What is a federated database?

Which of the following is NOT a reason to include a year attribute in the sales tracking system?

What is the purpose of adding a year attribute to the sales tracking system?

In which scenario would the combination of Salesperson Number and Product Number NOT be unique?

What is an example of an associative entity with its own unique identifier?

What serves as the unique identifier for each traffic ticket in the example given?

What is the purpose of including a year attribute in the sales tracking system?

Which type of entity is designed to list the attributes that directly describe the entity, with no complications involving other entities?

What does the quantity attribute describe in an E-R diagram?

In an E-R diagram, where is the intersection data, such as quantity, represented for a many-to-many relationship between salespersons and products?

When a many-to-many relationship is converted into an associative entity, what happens to the cardinalities and modalities?

What is the unique identifier of a many-to-many relationship or an associative entity in an E-R diagram?

What additional attribute(s) may need to be added to the combination of unique identifiers to ensure uniqueness in a many-to-many relationship or an associative entity?

Which type of unary relationship involves one person being married to another person and vice versa?

In the context of unary relationships, what does the modality of one rather than zero signify?

What does the downward branch out of the salesperson entity box in Figure 9.2.1b represent?

What is the cardinality of a one-to-many unary relationship?

What is the maximum number of instances of one entity that can relate to a single instance of another entity in a one-to-one unary relationship?

What does the one-to-one unary relationship called Back-Up involve in the context of the salesperson entity?

Which symbol in an E-R diagram represents the multiple association?

In a many-to-many binary relationship, what does it indicate?

What does the 'inner' symbol represent in an E-R diagram?

Can the quantity attribute be added to the product entity box in a many-to-many relationship between salespersons and products?

What does it mean when a company rule sets a limit of a maximum of ten customers in a sales territory?

What does the 'outer' symbol represent in an E-R diagram?

Which type of relationship involves three different entity types?

In a many-to-many unary relationship, how are the parts related to each other?

What does a binary relationship represent in an E-R diagram?

What does a one-to-one (1-1) binary relationship mean?

What does a one-to-many (1-M) binary relationship represent?

What does the "bar" or "one" symbol indicate in an E-R diagram?