Database Implementation Test
Questions
Course Introduction
Database Implementation explores the principles and practices involved in designing, creating, and managing relational databases. The course covers key concepts such as data modeling, normalization, indexing, query optimization, and transaction management. Students gain hands-on experience using Structured Query Language (SQL) to implement and manipulate databases, as well as exposure to popular database management systems such as MySQL, PostgreSQL, or Oracle. Emphasis is placed on best practices in database security, integrity, backup, and recovery solutions. By the end of the course, students are prepared to build robust and efficient database systems that support real-world applications.
Recommended Textbook
Oracle 10g Database Administrator Implementation and Administration 2nd Edition by Gavin Powell
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1424 Verified Questions
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Chapter 1: Oracle Architecture Overview
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Sample Questions
Q1) When installing Oracle10g on Windows 2000,you should not install Service Pack 3 before installing the Oracle software because it has some incompatibility issues with Oracle.
A)True
B)False
Answer: False
Q2) The OFA standards call for naming files according to their type and sequence of creation.
A)True
B)False
Answer: True
Q3) The SQL*Plus executable file in a Windows installation is ____.
A) sql.exe
B) sqlplus.exe
C) sqlp.exe
D) plus.exe
Answer: B
Q4) The Oracle database has three types of files: control files,database files,and ____________________ log files.
Answer: redo
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Chapter 2: Tools and Architecture
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Sample Questions
Q1) What are the different naming methods supported by Oracle?
Answer: The following describes the naming methods supported by Oracle:
*Local naming: Use a configuration file called tnsnames.ora,commonly called TNS (Transparent Network Substrate).TNS is the default method for connecting to a database.
*Directory naming: Service names and their mappings are stored in a lightweight directory access protocol (LDAP)server,much like a DNS server.
*Host naming: This method uses an operating system-based IP address to hostname mapping host files.Host files on Solaris Unix are placed in the / etc / system directory and on Windows in the c : windows\system32\drivers\etc directory.
*External naming: Third-party naming services involve third-party software applications that are not part of Oracle software.
*Easy connect: No naming,such as TNS lookup in the tnsnames.ora is required,allowing direct access to a database server.This option allows a direct connection to a database server using a connection string as shown in this syntax diagram: CONNECT <user> / <password>@host:port / service
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4
Chapter 3: Creating an Oracle Instance
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Sample Questions
Q1) Using SHUTDOWN ABORT to shut down a database saves you a significant amount of time.
A)True
B)False
Answer: False
Q2) Any user with the SYSOPER role can perform any task necessary in the database,including creation of an instance,recovery of an instance,and maintenance or creation of tables and data owned by any user in the database.
A)True
B)False
Answer: False
Q3) You can edit the Windows Registry,using the program ____.
A) registry.exe
B) regedit.exe
C) winreg.exe
D) wregistry.exe
Answer: B
Q4) DBCA stands for ___________________________________.
Answer: Database Configuration Assistant
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Chapter 4: Oracle Physical Architecture and Data
Dictionary Views
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110 Verified Questions
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Sample Questions
Q1) The REUSE clause of the CREATE CONTROLFILE command is required.
A)True
B)False
Q2) The status of a redo log group can be CLEARING_CURRENT if it is in the process of being re-created after the ALTER DATABASE CLEAR LOGFILE command has been used.
A)True
B)False
Q3) When you type the ____ command,the redo log buffer's redo records are moved to the redo log files.
A) COMMIT
B) UPDATE
C) INSERT
D) CREATE TABLE
Q4) ____________________ are logical overlays of underlying datafiles,allowing access to data stored in datafiles.
Q5) Describe the role of database replication,including the types of database replication that exist.
Q6) SGA stands for ____________________.
Q7) ASM stands for
6
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Chapter 5: Basic Storage Concepts and Settings
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104 Flashcards
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Sample Questions
Q1) A smallfile tablespace can contain ____ datafiles.
A) 12
B) 22
C) 122
D) 1022
Q2) The data dictionary views primarily display metadata.
A)True
B)False
Q3) ____________________ segments are used to store data for objects,such as tables,object tables,and triggers.
Q4) Undo data is made up of ____ blocks.
A) file
B) contiguous
C) data
D) undo
Q5) Undo tablespaces are specialized to store undo (____)data.
A) metadata
B) temporary
C) logical
D) rollback
Page 7
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Chapter 6: The Basics of Querying a Database
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Sample Questions
Q1) NULL values sort as the lowest value by default.
A)True
B)False
Q2) ____ queries merge rows from one or more tables,usually linking rows based on related values.
A) Join
B) Filtered
C) Sorted
D) Aggregated
Q3) BETWEEN allows multiple rows of returning subqueries.
A)True
B)False
Q4) The ____ statement allows you to specify tables and columns in the tables,from which data is selected.
A) SELECT
B) WHERE
C) FROM
D) GROUP BY
Q5) Provide an example of a join query.
Q6) ____________________ SQL functions operate on one row at a time.
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Chapter 7: Basic Table Management
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Sample Questions
Q1) A(n)____ ROWID identifies a row by its primary key in an index-organized table.
A) physical
B) logical
C) extended
D) restricted
Q2) The user-defined datatype can be any collection of the other datatypes you want assembled into its own datatype.
A)True
B)False
Q3) Temporary tables use temporary segments in either a temporary tablespace or a permanent tablespace.
A)True
B)False
Q4) A query cannot execute against a single partition.
A)True
B)False
Q5) Tablespace parameters cannot be overridden by setting them when you create a table.
A)True
B)False
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Chapter 8: Advanced Table Management
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Sample Questions
Q1) Large-sized files can be loaded into a(n)____________________ record in the database,where they are protected from unauthorized use and possible theft or damage.
Q2) When creating a relational table with a BLOB column,the ____ parameter tells Oracle 10g to place the LOB values into the data buffer for faster retrieval of frequently accessed data.
A) CHUNK
B) RETENTION
C) STORAGE
D) CACHE
Q3) It is possible to remove all the rows from a table by typing: ____ FROM <tablename>;
A) TRUNCATE
B) DELETE
C) DROP
D) REMOVE
Q4) Index-organized tables tend to have smaller-sized rows (than tables with LOBs)that benefit from a consolidation of the table's ____________________ storage and the table's data storage.
Q5) Why should you periodically analyze tables in a schema?
Page 10
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Chapter 9: Constraints, indexes, and Other Specialized Objects
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Sample Questions
Q1) ____ checking performs faster than other methods of constraint enforcement,because the optimizer has been programmed to handle them efficiently.
A) Trigger
B) Integrity constraint
C) Application constraint
D) Index
Q2) The syntax for adding a CHECK constraint with CREATE TABLE and ALTER TABLE is quite different.
A)True
B)False
Q3) An index does not store an entry for a row when all the indexed columns are null except if the index is a bitmap index.
A)True
B)False
Q4) Constraints that apply to multiple columns,such as a constraint for a compound foreign key,are called ____________________ constraints and are placed immediately after the list of columns in the CREATE TABLE command.
Q5) A(n)____________________ is an overlay onto one or more tables.
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Chapter 10: Basic Data Management
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Sample Questions
Q1) In commercial parlance,a ____ is a business agreement or exchange,usually involving money changing hands.
A) column
B) statement
C) transaction
D) table
Q2) Default settings for the SET TRANSACTION statement are READ WRITE and ISOLATION LEVEL READ COMMITTED.
A)True
B)False
Q3) The locking mode ____ is similar to ROW SHARE,additionally prohibiting a SHARE lock on the table.
A) SHARE ROW EXCLUSIVE
B) SHARE UPDATE
C) ROW EXCLUSIVE
D) MODE
Q4) All DDL statements issue an implicit commit.
A)True
B)False
Q5) The ____________________ statement places a lock on an entire table.
Page 12
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Chapter 11: Advanced Data Management
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Sample Questions
Q1) By reference (BYREF)implies that a variable is a pointer and can be passed into,but not out of,a procedure within procedure parameters.
A)True
B)False
Q2) The LOOP...END loop continues as long as a condition holds true.
A)True
B)False
Q3) Data Pump has an interactive command mode allows monitoring of ongoing ____________________.
Q4) The usability of ____ technology is in question because it is only available to database- and operating-system level administrative personnel.
A) Data Pump
B) Import and Export
C) SQL*Loader
D) SQL*Plus
Q5) The simplest block of code you can create in PL / SQL is a block,enclosed between BEGIN and END commands,containing the command ____________________.
Q6) The PL / SQL ____________________ datatype stores a TRUE,FALSE or null value.
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Chapter 12: Security Management
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Sample Questions
Q1) A user's identity can be validated in ____ ways.
A) two
B) three
C) four
D) five
Q2) Exporting is a form of backup that can be used to back up specific tables or schemas,or to back up the entire database.
A)True
B)False
Q3) The approach to security with roles,and particularly the CONNECT role,is known as a policy of ____.
A) maximum privilege
B) most privilege
C) minimum privilege
D) least privilege
Q4) There are ____ password settings that you can set within a profile.
A) five
B) six
C) seven
D) eight
Page 14
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Chapter 13: Performance Monitoring
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Sample Questions
Q1) Statistics are a computation or estimation of the exact size and placement of data in tables and indexes.
A)True
B)False
Q2) Describe the files generated by SQL Trace.
Q3) Autotrace can be enabled using the SET AUTOTRACE ENABLE EXPLAIN command,executed from within SQL*Plus.
A)True
B)False
Q4) The ANALYZE command is more versatile and potentially faster than using the DBMS_STATS package to generate statistics.
A)True
B)False
Q5) The ANALYZE command is a little more complex to use than the DBMS_STATS package to generate statistics.
A)True
B)False
Q6) ADDM stands for ___________________________________.
Q7) AWR stands for ______________________________.
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Chapter 14: Proactive Maintenance
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Sample Questions
Q1) With respect to proactive maintenance tasks managed within the Database Control,there is a default configuration within the advisors and metrics provided when you create a database.
A)True
B)False
Q2) The undo advisor works best with ____________________ undo.
Q3) ____________________ undo allows rollback of transactions,recovery of aborted and partly completed transactions,and some recovery.
Q4) The primary focus of the ____________________ advisor is forecasting.
Q5) Proactive maintenance is contrary to ____________________ maintenance.
Q6) The ____________________ of a relational database contains all system metadata and application tables,indexes,materialized views,and so on.
Q7) The objective of setting a PGA max size is to inhibit run-away operations. A)True
B)False
Q8) PGA memory has been automatically managed since Oracle 8.
A)True
B)False
Q9) MTTR stands for _________________________.
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Chapter 15: Backup and Recovery
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Sample Questions
Q1) The redo log files are typically covered for backups by simply duplexing redo log groups to have multiple members in each group.
A)True
B)False
Q2) Restoring of redo log files or archive log files means simply placing copies back into their respective ____________________,within the database structure in the operating system.
Q3) ____________________ failure is storage device failure,such as when a disk fails,and denies your database access to one,some,or all of the files in your database.
Q4) The primary function of ____________________ is controlled distribution of data over a WAN.
Q5) A ____ backup creates both DDL commands and DML commands,to re-create a database object (it uses the database SQL engine).
A) tablespace
B) logical
C) physical
D) consistent
Q6) RMAN stands for ____________________.
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