OCP: Oracle8i DBA Architecture & Administration and Backup & Recovery Study Gui

OCP: Oracle8i DBA
Architecture & Administration
and Backup & Recovery
Study Guide
Copyright ©2000 SYBEX , Inc., Alameda, CA
www.sybex.com

San Francisco • Paris • Düsseldorf • Soest • London

OCP: Oracle8i™ DBA
Architecture & Administration
and Backup & Recovery
Study Guide

Doug Stuns
Biju Thomas


Copyright ©2000 SYBEX , Inc., Alameda, CA
www.sybex.com

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To Cathy—Doug Stuns
To Shiji—Biju Thomas
Copyright ©2000 SYBEX , Inc., Alameda, CA
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Acknowledgments

F

irst, I want to thank the Lord, my savior, for making this all possible.
Next, my parents, Ron and Jan Stuns, for without them I would not be
who I am and would not have had the fortitude necessary to write this book.
My parents have been there for me throughout my life and have supported
everything that I have done.
My lovely wife of 11 years, Cathy, has been my major support in this pro-
cess and encouraged me to start this task knowing full well of the time com-
mitment. She is always my biggest and best supporter in every circumstance.
I am so happy that she has been there to support me throughout.
My wonderful children, Brant and Brea, 8 and 6 years of age, have sup-

ported and tolerated me through this process as well. The many hours away
from them has been difficult for each of us, but their understanding has been
incredible. Brant and Brea went so far as to join me in the den pretending to
help write and review sections so that we could spend more time together.
Without their understanding and support, I would not have been able to
complete this task. I am so proud of them both.
Numerous other people have helped to contribute to the completion and
ultimate success of this project, and I owe them sincere appreciation.
I want to thank Rick and Matt for reviewing questions and other techni-
cal materials.
I am greatly thankful to the staff at Sybex. First, Technical Editors Bob
Bryla and Betty MacEwen, for their diligent work and attention to detail.
Next, Editor Sharon Wilkey, whose great efforts to correct and smooth out
some rough edges made this process much easier. Production Editor Leslie E.
H. Light was always there to help in any way possible. I also thank Associate
Publisher Richard Mills for his support and follow-through. Unseen, but not
unappreciated, Bill Gibson, Jill Niles, and the rest of the Electronic Publish-
ing Specialists at Sybex created the look you see here and made sure each
page was a marriage of form and function.It has been my pleasure to work
with all of you.
Finally, I want to thank all of the many professional people whom I have
had the privilege to work with in my career. I have learned much and owe
many thanks!
—Doug Stuns
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viii

Acknowledgments

I would like to thank Richard and Leslie for their help, guidance, and
patience throughout the process of writing this book. Thank you, Sharon,
for the edits and suggestions—your hard work certainly helped to complete
the project on time. Bob and Betty, your technical reviews helped enor-
mously to raise the quality of this book—thank you. Bill and Jill, you made
this book look great. Thank you also.
I also thank Wendy and all my colleagues for their never-failing support—
you are a great team to work with. I thank my friends for inspiring and
encouraging me.
Finally, I owe big thanks to my wife, Shiji, who gave me all the support
when I needed it the most. Thank you for giving up your weekends and eve-
nings when I was working on this book.
—Biju Thomas
Copyright ©2000 SYBEX , Inc., Alameda, CA
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Introduction

T

here is high demand and competition for professionals in the Information
Technology (IT) industry, and the Oracle Certified Professional (OCP) cer-
tification is the hottest credential in the database realm. You have made the
right decision to pursue certification. Being an OCP will give you a distinct
advantage in this highly competitive market.
Many readers may already be familiar with the Oracle Corporation and
its products and services. For those who aren’t familiar with the company,
Oracle Corporation, founded in 1977, is the world’s leading database com-
pany and second largest independent software company, with revenues of

more than $9.7 billion and clients in more than 145 countries. Oracle’s
CEO, Lawrence J. Ellison, saw the future of information technology in Inter-
net computing, and the Oracle8i database was created to meet the needs of
this technological evolution.
This book is intended to help you continue on your exciting new path
toward obtaining the Oracle8i certified database administrator certification.
The book will give you the necessary knowledge of the Oracle Server archi-
tecture and the hands-on skills you need to pass Exams 1Z0-023 and 1Z0-
025. Although the OCP exams for Database Administration can be taken in
any order, it is generally recommended that the Oracle8i OCP certification
exam for Architecture and Administration and the Oracle8i OCP certifica-
tion exam for Backup and Recovery be the final exams taken in the series.

Why Become an Oracle Certified Professional?

The number one reason to become an Oracle Certified Professional is to gain
more visibility and greater access to the industry’s most challenging oppor-
tunities. The OCP program is Oracle’s commitment to provide top-quality
resources for technical professionals who want to become Oracle specialists
in specific job roles. The certification tests are scenario based, which is the
most effective way to access your hands-on expertise and critical problem-
solving skills.
Certification is proof of your knowledge and shows that you have the
skills required to support Oracle’s core products according to the standards
established by Oracle. The OCP program can help a company identify proven
performers who have demonstrated their skills to support the company’s
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xxvi

Introduction

investment in Oracle technology. It demonstrates that you have a solid under-
standing of your job role and the Oracle products used in that role.
So, whether you are beginning a career, changing careers, securing your
present position, or seeking to refine and promote your position, this book
is for you!

Oracle Certifications

Oracle has several certification tracks designed to meet different skill levels.
Each track consists of several tests that can be taken in any order. The fol-
lowing tracks are available:


Oracle Database Administrator


Oracle Application Developer


Oracle Database Operator


Oracle Java Developer


Oracle Financial Applications Consultant

Oracle Database Administrator (DBA)

The role of Database Administrator (DBA) has become a key to success in
today’s highly complex database systems. The best DBAs work behind the
scenes, but are in the spotlight when critical issues arise. They plan, create,
and maintain databases to ensure that the databases meet the data manage-
ment needs of the business. DBAs also monitor the databases for perfor-
mance issues and work to prevent unscheduled downtime. Being an effective
DBA requires a broad understanding of the architecture of Oracle databases
and expertise in solving system-related problems. The Oracle8i certified
administrator track consists of the following five tests:


1Z0-001: Introduction to Oracle—SQL and PL/SQL


1Z0-023: Oracle8i—Architecture and Administration


1Z0-024: Oracle8i—Performance and Tuning


1Z0-025: Oracle8i—Backup and Recovery


1Z0-026: Oracle8i—Network Administration
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Introduction

xxvii

Oracle Application Developer

This track tests your skills in client-server and Web-based application devel-
opment using Oracle application development tools such as Developer/2000,
SQL, PL/SQL, and SQL*Plus. The following five tests comprise this track:


1Z0-001: Introduction to Oracle—SQL and PL/SQL


1Z0-101: Develop PL/SQL Program Units


1Z0-111: Developer/2000 Forms 4.5 I


1Z0-112: Developer/2000 Forms 4.5 II


1Z0-113: Developer/2000 Reports 2.5

Oracle Database Operator (DBO)

A Database Operator (DBO) performs simple operational tasks on Oracle
databases in a support role to the DBA. DBOs need an introductory knowl-
edge of the commands and utilities associated with managing a database.
DBOs also install and set up databases, create users, and perform routine

backups. You need to take the following test to be certified as a Database
Operator:


1Z0-401: Database Operator

Oracle Java Developer

This certification track is part of the Certification Initiative for Enterprise
Development, a multi-vendor collaboration with Sun Microsystems, IBM,
Novell, and the Sun-Netscape Alliance to establish standards for knowledge
and skill levels for enterprise developers in the Java technology. The Initia-
tive recognizes three levels of certification requiring five tests. At each skill
level, a certificate is awarded to candidates who successfully pass the
required exams in that level.


Level 1: Sun Certified Programmer


1Z0-501: Sun Certified Programmer for the Java 2 Platform


Level 2: Certified Solution Developer


1Z1-502: Oracle JDeveloper: Develop Database Applications
with Java (Oracle JDeveloper, Release 2)
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xxviii

Introduction

or

1Z1-512: Oracle JDeveloper: Develop Database Applications
with Java (Oracle JDeveloper, Release 3)


1Z0-503: Object-Oriented Analysis and Design with UML


Level 3: Certified Enterprise Developer


1Z0-504: Enterprise Connectivity with J2EE


1Z0-505: Enterprise Development on the Oracle Internet Platform

Oracle Financial Applications Consultant

This certification tests your expertise in Oracle Financial applications. These
exams are designed to test your knowledge of the business processes incor-
porated into the Oracle Financial applications software. The following three
tests comprise this track, and the third exam offers a specialization in either
Procurement or Order Fulfillment:


1Z0-210: Financial Management R11


1Z0-220: Applied Technology R11


1Z0-230: Procurement R11

or


1Z0-240: Order Fulfillment

More Information

The most current information about Oracle certification can be found at



. Follow the Certification Home Page link
and choose the track you are interested in. Read the Candidate Guide for the
test objectives and test contents, and keep in mind that they can change at
any time without notice.

OCP: Database Administrator Track

The Oracle8i Database Administrator certification consists of five tests, and
Sybex offers several study guides to help you achieve the OCP Database
Administrator Certification. There are three books in this series:



OCP: Oracle8i™ DBA SQL and PL/SQL Study Guide
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Introduction

xxix


OCP: Oracle8i™ DBA Architecture & Administration and Backup
& Recovery Study Guide


OCP: Oracle8i™ DBA Performance Tuning and Network Adminis-
tration Study Guide

Additionally, these three books are offered in a boxed set:


OCP: Oracle8i™ DBA Certification Kit

Table F.1 lists the five exams for the DBA track, their scoring, and the
Sybex study guides that will help you pass each exam.

TABLE F.1

OCP Database Administrator Tests and Passing Scores

Exam # Title
Total
Questions
Questions
Correct
Passing
% Sybex Study Guide

1Z0-001 Introduction to
Oracle: SQL &
PL/SQL
57 39 68%

OCP: Oracle8i™ DBA
SQL and PL/SQL
Study Guide

1Z0-023 Oracle8i:
Architecture and
Administration
65 38 58%

OCP: Oracle8i™ DBA
Architecture &
Administration and
Backup & Recovery
Study Guide

1Z0-024 Oracle8i:
Performance and

Tuning
57 38 67%

OCP: Oracle8i™ DBA
Performance Tuning
and Network Admin-
istration Study Guide

1Z0-025 Oracle8i: Backup
and Recovery
60 34 57%

OCP: Oracle8i™ DBA
Architecture &
Administration and
Backup & Recovery
Study Guide

1Z0-026 Oracle8i:
Network
Administration
59 41 71%

OCP: Oracle8i™ DBA
Performance
Tuning and Network
Administration
Study Guide
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xxx

Introduction

Skills Required for DBA Certification


Understanding RDBMS concepts


Writing queries and manipulating data


Creating and managing users and database objects


Understanding PL/SQL programming and constructs


Understanding Oracle Server architecture—Database and Instance


Completely understanding physical and logical database storage
concepts


Managing data—storage, loading, and reorganization


Managing roles, privileges, passwords, and resources


Understanding backup and recovery options


Archiving redo log files and hot backups


Using Recovery Manager (RMAN) to perform backup and recovery
operations


Creating and managing standby database


Identifying and tuning database and SQL performance


Interpreting data dictionary views and database parameters


Configuring Net8 on the server side and client side


Using multi-threaded server, connection manager, and Oracle Names


Understanding graphical and character mode backup, recovery, and
administration utilities

Tips for Taking OCP Exams


Each OCP test contains about 60–80 questions to be completed in
about 90 minutes. Answer the questions you know first, so that you
do not run out of time.


Many questions on the exam have answer choices that at first
glance look identical. Read the questions carefully. Don’t just jump
to conclusions. Make sure that you are clear about exactly what
each question asks.
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Introduction

xxxi


Many of the test questions are scenario based. Some of the scenarios
contain non-essential information and exhibits. You need to be able to
identify what’s important and what’s not.


Do not leave any questions unanswered. There is no negative scoring.
You can mark a difficult question or a question you are unsure about
and come back to it later.


When answering questions that you are not sure about, use a process of
elimination to get rid of the obviously incorrect answers first. Doing this
greatly improves your odds if you need to make an educated guess.

What Does This Book Cover?

This book covers everything you need to know to pass both the OCP:
Oracle8i DBA Architecture & Administration and OCP: Oracle8i DBA
Backup & Recovery exams. The first part of the book covers the configura-
tion, architecture, and administration of an Oracle database. The second
part covers the topics of backup and recovery, including using traditional
techniques as well as RMAN.

Part One: OCP: Oracle8i DBA Architecture & Administration

Chapter 1 starts with an overview of the Oracle database configuration and its
architecture. It discusses what constitutes an instance and a database, and the
various background processes that communicate with the Oracle database.
Chapter 2 discusses the administrator authentication methods and the
stages in starting and stopping the Oracle database. This chapter also intro-
duces the Oracle Enterprise Manager utilities.
Chapter 3 introduces you to the steps required in database creation and
how to prepare OS environment and parameter files. The database admin-
istrative packages and database event triggers are also discussed.
Chapter 4 covers two important constituents of the Oracle database—the
control file and redo log file. You will learn the importance and use of these
files in this chapter.
Chapter 5 is dedicated to managing tablespaces. The types of tablespaces
and their configuration and storage are discussed.

Chapter 6 discusses the logical storage structures such as blocks, extents,
and segments. Creating and managing rollback segments are discussed.
Chapter 7 covers creating and managing tables and its associated struc-
tures such as indexes and constraints.
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xxxii

Introduction

Chapter 8 introduces database and data security. Setting up users, privi-
leges, and roles are discussed.
Chapter 9 discusses the database utilities such as SQL*Loader and
Export/Import. It also discusses the direct-load insert and National Lan-
guage Support.

Part Two: Oracle8i DBA Backup & Recovery

Chapter 10 starts with an overview of the backup and recovery process and
configurations.
Chapter 11 discusses the recovery structures and processes as well as the
types of failures.
Chapter 12 introduces how to configure the database for backup and
recovery. This chapter also describes the differences between

ARCHIVELOG


and

NOARCHIVELOG

modes.
Chapter 13 covers how to perform physical backups without Recovery
Manager. It includes implications of closed and opened backups, Nologging
and Logging options, control file backups, and special issues associated with
read-only tablespaces.
Chapter 14 covers how to perform complete recovery without Recovery
Manager. This chapter focuses primarily on the differences between

ARCHIVELOG

and

NOARCHIVELOG

mode recoveries.
Chapter 15 discusses how to perform incomplete recovery without
Recovery Manager. This chapter has a special section on how to recover
after losing current and inactive nonarchived redo log files.
Chapter 16 introduces the Export and Import utilities and how these util-
ities complement the backup process. It includes an example of the
tablespace point-in-time recovery (TSPITR).
Chapter 17 introduces additional recovery issues, such as parallel recov-
ery and recovering a database with missing data files. There is also a section
on issues associated with read-only tablespaces.
Chapter 18 covers more Oracle utilities for troubleshooting the database.
This chapter focuses on detecting corruption, diagnosing and solving prob-
lems via trace files, and using the LogMiner utility to reconstruct redo log

transactions.
Chapter 19 introduces Oracle Recovery Manager, providing an overview
that includes its components and capabilities.
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Introduction

xxxiii

Chapter 20 demonstrates Recovery Manager’s catalog creation and main-
tenance. It covers how to query the recovery catalog and create, run, and
store RMAN scripts.
Chapter 21 covers backups using Recovery Manager. It discusses the
types of RMAN backups, tuning backups, and performing incremental and
cumulative backups.
Chapter 22 discusses restoration and recovery using Recovery Manager
and has specific examples of types of recoveries.
Chapter 23 covers the Oracle standby database, including its complete
configuration and setup. It provides examples of using the standby database
in specific scenarios.
Each chapter ends with review questions that are specifically designed to
help you retain the knowledge presented. To really nail down your skills,
read each question carefully and answer the questions.

Where Do You Take the Exam?

You may take the exams at any of the more than 800 Sylvan Prometric
Authorized Testing Centers around the world. For the location of a testing
center near you, call 1-800-891-3926. Outside of the United States and Can-

ada, contact your local Sylvan Prometric Registration Center. The tests can
be taken in any order.
To register for an Oracle Certified Professional exam:

Determine the number of the exam you want to take.

Register with the nearest Sylvan Prometric Registration Center. At this
point, you will be asked to pay in advance for the exam. At the time
of this writing, the exams are $125 each and must be taken within one
year of payment. You can schedule exams up to six weeks in advance
or as soon as one working day prior to the day you wish to take it. If
something comes up and you need to cancel or reschedule your exam
appointment, contact Sylvan Prometric at least 24 hours in advance.

When you schedule the exam, you’ll get instructions regarding all
appointment and cancellation procedures, the ID requirements, and
information about the testing-center location.
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xxxiv Introduction
You can also register for the test online at />register/frameset.htm. If you live outside the United States, register
online at />ERN_intl_IT&FAA.htm.
How to Use This Book
This book can provide a solid foundation for the serious effort of preparing
for the Oracle Certified Professional Architecture & Administration and
Backup & Recovery exams. To best benefit from this book, use the following
study method:
1.
Take the Assessment Tests immediately following this introduction.
(The answers are at the end of each test.) Carefully read over the

explanations for any questions you get wrong, and note which chap-
ters the material comes from. This information should help you plan
your study strategy.
2.
Study each chapter carefully, making sure that you fully understand
the information and the test objectives listed at the beginning of each
chapter. Pay extra close attention to any chapter for which you missed
questions in the Assessment Tests.
3.
Closely examine the sample queries that are used throughout the
book. You may find it helpful to type in the samples and compare the
results shown in the book to those on your system. Once you’re com-
fortable with the content in the chapter, answer the review questions
related to that chapter. (The answers appear at the end of the chapter,
after the review questions.)
When typing in examples from the book, do not type the line numbers that
appear in the sample output; the Oracle query tools automatically number
lines for you.
4.
Note the questions that confuse you, and study those sections of the
book again.
5.
Take the Practice Exams in this book. You’ll find them in Appendix A
and Appendix B. The answers appear at the end of the exams.
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Introduction xxxv
6.
Before taking the exam, try your hand at the bonus exams that are
included on the CD that comes with this book. The questions in these

exams appear only on the CD. This will give you a complete overview
of what you can expect to see on the real thing.
7.
Remember to use the products on the CD that is included with this
book. The electronic flashcards and the EdgeTest exam preparation
software have all been specifically picked to help you study for and
pass your exams. Oracle also offers sample exams on their certifica-
tion Web site:
The electronic flashcards can be used on your Windows computer or
on your Palm device.
To learn all the material covered in this book, you’ll have to apply yourself
regularly and with discipline. Try to set aside the same time period every day to
study, and select a comfortable and quiet place to do so. If you work hard, you
will be surprised at how quickly you learn this material. All the best!
What’s on the CD?
We worked hard to provide some really great tools to help you with your cer-
tification process. All of the following tools should be loaded on your work-
station when studying for the test.
The EdgeTest for Oracle Certified DBA Preparation
Software
Provided by EdgeTek Learning Systems, this test preparation software pre-
pares you to successfully pass the OCP: Oracle8i DBA Architecture &
Administration and Backup & Recovery exams. In this test engine, you will
find all of the questions from the book, plus additional Practice Exams that
appear exclusively on the CD. You can take the Assessment Tests, test your-
self by chapter, take the Practice Exams that appear in the book or on the
CD, or take an exam randomly generated from any of the questions.
Electronic Flashcards for PC and Palm Devices
After you read the book, read the review questions at the end of each chapter
and study the practice exams included in the book and on the CD. But wait,

there’s more! Test yourself with the flashcards included on the CD. If you
can get through these difficult questions, and understand the answers, you’ll
Copyright ©2000 SYBEX , Inc., Alameda, CA
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xxxvi Introduction
know you’re ready for the OCP: Oracle8i DBA Architecture & Administra-
tion and Backup & Recovery exams.
The flashcards include over 150 questions specifically written to hit you
hard and make sure you are ready for the exam. Between the review questions,
practice exam, and flashcards, you’ll be more than prepared for the exam.
OCP: Oracle8i DBA Architecture & Administration and
Backup & Recovery Study Guide Ebook
Sybex is now offering the Oracle Certification books on CD, so you can read
them on your PC or laptop. They are in Adobe Acrobat format. Acrobat
Reader 4 is also included on the CD.
This will be extremely helpful to readers who fly and don’t want to carry
a book, as well as to readers who find it more comfortable reading from their
computer.
How to Contact the Authors
To contact Biju Thomas, you can e-mail him at or visit
his Web site for DBAs at www.bijoos.com/oracle.
You can reach Doug Stuns via e-mail at Doug
Stuns recommends that you register at technet.oracle.com to get access to
the Oracle8i documentation, including information for all of the RMAN
commands as well as other useful information about Oracle8i.
About the Authors
Biju Thomas is an Oracle Certified Professional with more than six years of
Oracle database administration and application development experience.
He has written articles for Oracle Magazine and Oracle Internals.
Doug Stuns is an Oracle Certified Professional with more than 10 years of

experience with Oracle databases. He is currently president and founder of
SCS, Inc., an Oracle-based consulting company in Scottsdale, Arizona. For-
merly Doug worked for the Oracle Corporation for five years, serving as
senior principal technical consultant focusing on DBA consulting and cus-
tomized education projects.
Copyright ©2000 SYBEX , Inc., Alameda, CA
www.sybex.com

OCP: Oracle8i Architecture & Administration
Assessment Test

1.

What happens when one of the redo members of the next group is
unavailable when LGWR has finished writing the current log file?

A.

Database operation will continue uninterrupted.

B.

The database will hang; do an

ALTER DATABASE SWITCH LOGFILE


to skip the unavailable redo log.

C.

The instance will be shut down.

D.

LGWR will create a new redo log member, and the database will
continue to be in operation.

2.

How do you change the status of a database to restricted availability,
if the database is already up and running? Choose the best answer.

A.

Shut down the database and start the database using

STARTUP
RESTRICT

.

B.

Use the

ALTER DATABASE RESTRICT SESSIONS

command.

C.

Use the

ALTER SYSTEM ENABLE RESTRICTED SESSION

command.

D.

Use the

ALTER SESSION ENABLE RESTRICTED USERS

command.

3.

Which background process updates the online redo log files with the
redo log buffer entries when a

COMMIT

occurs in the database?

A.

DBW

n

B.

LGWR

C.

CKPT

D.

CMMT
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xxxviii

Assessment Test

4.

Analyze the following statement. On which tablespace will the roll-
back segment

R01

be created?

CREATE ROLLBACK SEGMENT R01;

A.

The default tablespace of the user creating the rollback segment.

B.

In the

RBS

tablespace.

C.

In the

SYSTEM

tablespace.

D.

The statement will return an error. You must specify a tablespace
when creating a rollback segment.

5.

Choose two extent management options available for tablespaces.

A.

Dictionary managed

B.

Data file managed

C.

Locally managed

D.

Remote managed

E.

System managed

6.

Which component in the following list is not part of the SGA?

A.

Database buffer cache

B.

Library cache

C.

Sort area

D.

Shared pool

7.

How do you enable complex password verification such as having at
least one numeric or special character in the password?

A.

Use the

ALTER USER

command to specify the

PASSWORD_VERIFY_
FUNCTION

clause

B.

Define a profile with the

PASSWORD_VERIFY_FUNCTION

and assign
the profile to the user

C.

Create a trigger on the password change event, which fires when
the user changes a password and verifies the criteria

D.

Set the initialization parameter

PASSWORD_VERIFY_FUNCTION
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OCP: Oracle8i Architecture & Administration Assessment Test

xxxix

8.

The

ALTER INDEX … REBUILD

command cannot ____________.

A.

Move index to a new tablespace

B.

Change the

INITIAL

extent size of the index

C.

Collect statistics on the index

D.

Specify a new name for the index

9.

Choose a file that is not used by the SQL*Loader utility for input or
output.

A.

Control file

B.

Parameter file

C.

Bad file

D.

Text file

E.

Data file

10.

Which is the correct order of steps in executing a query?

A.

Parse, execute

B.

Execute, parse, fetch

C.

Parse, execute, fetch

D.

Parse, fetch, execute

11.

Which script creates the data dictionary tables?

A.

catalog.sql

B.

catproc.sql

C.

sql.bsq

D.

dictionary.sql

12.

How do you collect statistics for a table?

A.

ALTER TABLE <

TABLE_NAME

> COMPUTE STATISTICS

B.

ANALYZE TABLE <

TABLE_NAME

> COMPUTE STATISTICS

C.

ALTER TABLE

<TABLE_NAME

> COLLECT STATISTICS

D.

ANALYZE TABLE

<TABLE_NAME

> COLLECT STATISTICS
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xl

Assessment Test

13.

When you connect to a database by using

CONNECT SCOTT/TIGER AS
SYSDBA

, which schema are you connected to in the database?

A.

SYSTEM

B.

PUBLIC

C.

SYSDBA

D.

SYS

E.

SCOTT

14.
Which storage parameter is used to make sure that each extent is a
multiple of the value specified?
A.
MINEXTENTS
B.
INITIAL
C.
MINIMUM EXTENT
D.
MAXEXTENTS
15.
Which data dictionary view would you query to see the temporary seg-
ments in a database?
A.
DBA_SEGMENTS
B.
V$SORT_SEGMENT
C.
DBA_TEMP_SEGMENTS
D.
DBA_TABLESPACES
16.

Suppose the database is in the MOUNT state; pick two statements from
the options below that are correct.
A.
The control file is open; the database files and redo log files are
closed.
B.
You can query the SGA by using dynamic views.
C.
The control file, data files, and redo log files are open.
D.
The control file, data files, and redo log files are all closed.
Copyright ©2000 SYBEX , Inc., Alameda, CA
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OCP: Oracle8i Architecture & Administration Assessment Test xli
17.
Which of the following clauses will affect the size of the control file
when creating a database? Choose two.
A.
MAXLOGFILES
B.
LOGFILE
C.
ARCHIVELOG
D.
MAXDATAFILES
18.
Which SQL*Plus command can be used to see whether the database is
in ARCHIVELOG mode?
A.
SHOW DB MODE

B.
ARCHIVELOG LIST
C.
ARCHIVE LOG LIST
D.
LIST ARCHIVELOG
19.
How is the database character set specified?
A.
When you create the database
B.
In the initialization parameter file
C.
In the environment variable
D.
Using ALTER SESSION
20.
When you create a user with a default tablespace of USERS and you do
not specify the temporary tablespace, which tablespace will be the
user’s temporary tablespace?
A.
TEMP
B.
USERS
C.
SYSTEM
21.
Which is an invalid database event for creating a trigger?
A.
SHUTDOWN

B.
SERVERERROR
C.
STARTUP
D.
COMMIT
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xlii Assessment Test
22.
Choose two space management parameters used to control the free
space usage in a data block.
A.
PCTINCREASE
B.
PCTFREE
C.
PCTALLOCATED
D.
PCTUSED
23.
When you multiplex the control file, how many control files can you
have for one database?
A.
Four
B.
Eight
C.
Twelve
D.

Unlimited
24.
The following is the sequence of actions performed by users in a data-
base; who will have what privileges?
James: GRANT SELECT ON CUSTOMER TO JULIE WITH GRANT OPTION;
Julie: GRANT SELECT ON JAMES.CUSTOMER TO ALEX;
James: REVOKE SELECT ON CUSTOMER FROM JULIE;
A.
James cannot revoke privileges from Julie because Julie has
granted the privilege to Alex.
B.
Julie loses the privilege on CUSTOMER, but Alex keeps the privilege.
C.
Julie and Alex lose privileges on CUSTOMER.
D.
Alex loses the privilege on CUSTOMER, but Julie keeps the privilege.
25.
How do you prevent row migration?
A.
Specify larger PCTFREE
B.
Specify larger PCTUSED
C.
Specify large INITIAL and NEXT sizes
D.
Specify small INITRANS
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