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Study Guide
Study Guide
Brian Perry
Chris Huss
Jeantet Fields
Acquisitions Editor: Jeff Kellum
Development Editor: Amy Breguet
Technical Editors: Chris Perry; Joep Piscaer
Production Editor: Dassi Zeidel
Copy Editor: Liz Welch
Editorial Manager: Pete Gaughan
Production Manager: Tim Tate
Vice President and Executive Group Publisher: Richard Swadley
Vice President and Publisher: Neil Edde
Media Associate Project Manager: Laura Moss-Hollister
Media Associate Producer: Shawn Patrick
Media Quality Assurance: Doug Kuhn
Book Designers: Judy Fung and Bill Gibson
Compositor: Craig Woods, Happenstance Type-O-Rama
Proofreader: Publication Services, Inc.
Indexer: Ted Laux
Project Coordinator, Cover: Lynsey Stanford
Cover Designer: Ryan Sneed
Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada
ISBN: 978-0-470-56961-0
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions
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Library of Congress Cataloging-in-Publication Data
Perry, Brian, 1966-
VCP : VMware certified professional on vSphere 4 study guide / Brian Perry, Chris Huss, Jeantet Fields. p. cm.
ISBN-13: 978-0-470-56961-0 (pbk)
ISBN-10: 0-470-56961-1 (pbk)
ISBN 9780470916995 (ebk)
ISBN 9780470917015 (ebk)
ISBN 9780470917008 (ebk)
1. Electronic data processing personnel—Certification. 2. Virtual computer systems—Examinations—Study guides. 3. VMware. I. Huss, Chris, 1972- II. Fields, Jeantet, 1973- III. Title.
QA76.3.P4734 2010
005.4’3—dc22
2010019277
TRADEMARKS: Wiley, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission. VMware and vSphere are trademarks or registered trademarks of VMware, Inc. All other trademarks are the property of their respective owners. Wiley Publishing, Inc. is not associated with any product or vendor mentioned in this book.
10 9 8 7 6 5 4 3 2 1
Dear Reader,
Thank you for choosing VCP: VMware Certified Professional on vSphere 4 Study Guide. This book is part of a family of premium-quality Sybex books, all of which are written by outstanding authors who combine practical experience with a gift for teaching.
Sybex was founded in 1976. More than 30 years later, we’re still committed to producing consistently exceptional books. With each of our titles, we’re working hard to set a new standard for the industry. From the paper we print on, to the authors we work with, our goal is to bring you the best books available.
I hope you see all that reflected in these pages. I’d be very interested to hear your comments and get your feedback on how we’re doing. Feel free to let me know what you think about this or any other Sybex book by sending me an email at nedde@wiley.com. If you think you’ve found a technical error in this book, please visit http://sybex.custhelp.com. Customer feedback is critical to our efforts at Sybex.
Best regards,
Neil Edde Vice President and Publisher Sybex, an Imprint of Wiley
We dedicate this book to our students and those entering the world of virtualization. Many technologies come and go, but virtualization is here to stay.
Acknowledgments
The writing of this Study Guide has been a great challenge for me. In addition to traveling and extolling the virtues of virtualization to others, I help manage an independent instructors group that teaches and consults on VMware virtualization. We found the time to write a comprehensive guide such as this mostly on the road and occasionally from home. There are many individuals and partners we have collaborated with to bring this book to you.
I want to thank Sybex and Wiley for their patience and encouragement along the way. Without the help of Acquisitions Editor Jeff Kellum, Development Editor Amy Breguet, Production Editor Dassi Zeidel, and the rest of the team, this project would not have been completed.
I also want to thank the great folks at VMware. I started my instructing career for VMware over six years ago. Without their help and focus in providing the best IT instructional classes for their products, I would not be in the position I’m fortunate to be in today.
In addition, I’d like to mention two individuals who helped immensely in providing content and critique. John Nouveaux was patient and professional in helping us with additional content. Without his help, this book would have been delayed greatly. The other individual, my brother Chris Perry, provided technical critique of the manuscript. Chris was my mentor and inspiration to get into the IT world many years ago. To work with him on a book was a dream come true for both of us.
Two other people helped to make this book a reality: my business partners, Chris Huss and Jeantet Fields. Chris and I have known and worked with each other now for over five years. I love his passion and focus. Jeantet and I met just four short years ago, but the friendship created was almost instantaneous. Both of these men are an inspiration to me each day and I’m blessed to have them as friends, business partners, and co-authors.
My last thank you goes to my family. As most authors know or come to know very quickly, without the support of family, a book project is very hard to finish. I want to thank both of my children, Alana and Ross, for their patience when I had to take time to work on the book and not be with them. Most importantly, I want to thank my wife Moriah for her encouragement and love. Without my family, the travel and hard work would be unsustainable.
—Brian Perry
It’s been a long journey getting to this point in my life, and I have many people to thank.
The people of LIMMCO who gave me my first opportunity to build a network from the ground up; David Neel of CyberTek Engineering, who gave me my first IT job; Eric Farmer, my friend and mentor; and my friends at LTI, John Heuglin, Steven Cummings, Allen Smith, and Doug Paddock, who encouraged me to get published.
I want to thank Matt Stearly and the good people at Infinite Solutions, Charlie Hagerty and Eric Henderson at New Age Technologies, and everyone who works for the Education group at VMware, who work tirelessly, giving many of us a better quality of life.
Acknowledgments
I want to thank my business partners at VMTrainers, Brian and Jeantet, who amaze me every day with their patience, stamina, and business savvy.
I want to thank my family, who have given me the life skills to succeed, and who have been my biggest mentors and supporters. I’d like to especially thank my wife Lori, who works endlessly herself but has continued to support me through this very long process.
—Chris Huss
There are many people to whom I owe a heartfelt thanks; the short list starts with my colleagues Brian and Chris, who made both VMTrainers and the idea of authoring a book reality.
I am grateful to my dear Ariane, whose patience and support made it possible for me to contribute to this text. A nod of credit is aimed at my family, whose pride gave me the confidence to dare speaking authoritatively for the benefit of my comrades in IT.
Lastly, a thank-you to the professionals in VMware Education, in particular Kelly and Kirk: you have made my present career possible when you gave me a chance, a few years ago. That’s how I see it, and for that, I thank you.
—Jeantet Fields
Contents at a Glance
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“Give up the idea.”
“Haven’t I the necessary attainment?”
“Yes, you have; but you have no capital.” [189]
The great obstacle stands revealed to me: woe to the poor in pocket! University teaching demands a private income. Be as ordinary, as commonplace as you please; but, above all, possess the coin that lets you cut a dash. That is the main thing; the rest is a secondary condition.
And the worthy man tells me what poverty in a frock-coat means. Though less of a pauper than I, he has known the mortification of it; he describes it to me, excitedly, in all its bitterness. I listen to him with an aching heart; I see the refuge which was to shelter my future crumbling before my eyes:
“You have done me a great service, sir,” I answer. “You put an end to my hesitation. For the moment, I give up my plan. I will first see if it is possible to earn the small fortune which I shall need if I am to teach in a decent manner.”
Thereupon we exchanged a friendship grip of the hand and parted. I never saw him again. His fatherly arguments had soon convinced me: I was prepared to hear the blunt truth. A few months earlier I had received my nomination as an assistant-lecturer in zoology at the university of Poitiers. They offered me a ludicrous salary. After paying the costs of moving, I should have had hardly three francs a day left; and, on this income, I should have had to keep my family, numbering seven in all. I hastened to decline the very great honour.
No, science ought not to practise these jests. If we humble persons are of use to her, she should [190]at least enable us to
live. If she can’t do that, then let her leave us to break stones on the highway. Oh, yes, I was prepared for the truth when that honest fellow talked to me of frock-coated poverty! I am telling the story of a not very distant past. Since then things have improved considerably; but, when the pear was properly ripened, I was no longer of an age to pick it.
However, notwithstanding Rollier’s confidences, Fabre had deferred rather than definitely abandoned the execution of his project. Since his impecuniosity was the only obstacle to the realisation of his wishes, could he not seek to uplift himself, as others had done, by daring and willing? In the meantime was it not better to make a great effort in this direction than to remain for ever sunk in the material anxieties and ungrateful tasks of the lycée?
The question as to how to free and simultaneously uplift himself exercised the mind of Fabre at this time.
And what was I to do now [he writes] to overcome the difficulty mentioned by my inspector and confirmed by my personal experience? I would take up industrial chemistry. The municipal lectures at Saint-Martial placed a spacious and fairly well-equipped laboratory at my disposal. Why not make the most of it? [191]
The chief manufacture of Avignon was madder. The farmer supplied the raw material to the factories, where it was turned into purer and more concentrated products. My
predecessor had gone in for it and done well by it, so people said. I would follow in his footsteps and use the vats and furnaces, the expensive plant which I had inherited. So to work.
What should I set myself to produce? I proposed to extract the colouring-substance, alizarin, to separate it from the other matters found with it in the root, to obtain it in the pure state and in a form that allowed of the direct printing of the stuffs, a much quicker and more artistic method than the old dyeing process.
Nothing could be simpler than this problem, once the solution was known; but how tremendously obscure while it had still to be solved! I dare not call to mind all the imagination and patience spent upon endless endeavours which nothing, not even the madness of them, discouraged. What mighty meditations in the sombre church! What glowing dreams, soon to be followed by sore disappointment when experiment spoke the last word and upset the scaffolding of my plans! Stubborn as the slave of old amassing a peculium for his enfranchisement, I used to reply to the check of yesterday by the fresh attempt of to-morrow, often as faulty as the others, sometimes the richer by an improvement; and I went on indefatigably, for I, too, cherished the indomitable ambition to set myself free. [192]
Should I succeed? Perhaps so. I at last had a satisfactory answer. I obtained, in a cheap and practical fashion, the pure colouring-matter, concentrated in a small volume and excellent for both printing and dyeing. One of my friends took up my process on a large scale in his works; a few calicofactories adopted the produce and expressed themselves delighted with it. The future smiled at last; a pink rift opened in my grey sky. I should possess the modest fortune without which I must deny myself the pleasure of teaching in a
university. Freed of the torturing anxiety about my daily bread, I should be able to live at ease among my insects.8
To these delights of industrial chemistry, the mistress of her problems and rich in future promise, were added, by an additional stroke of good fortune, the flattering congratulations and encouragement of the Minister Duruy and the Emperor Napoleon.9 It seemed as though, after struggling long against the tide, his frail vessel had a fair wind astern; it seemed about to come into port; surely at last his utmost desires were about to be realised!
Once home amidst my family, I felt a mighty load off my mind and a great joy in my heart, [193]where rang a peal of bells proclaiming the delights of my approaching emancipation. Little by little, the factory that was to set me free rose skywards, full of promises. Yes, I should possess the modest income which would crown my ambition by allowing me to descant on animals and plants in a university chair.
“Well, no,” said Fate, “you shall not acquire the freedman’s peculium; you shall remain a slave, dragging your chain behind you; your peal of bells rings false!”
Hardly was the factory in full swing, when a piece of news was bruited, at first a vague rumour, an echo of probabilities rather than certainties, and then a positive statement leaving no room for doubt. Chemistry had obtained the madder-dye by artificial means; thanks to a laboratory concoction, it was utterly overthrowing the agriculture and industries of my district. This result, while destroying my work and my hopes, did not surprise me unduly. I myself had toyed with the
problem of artificial alizarin; and I knew enough about it to foresee that, in no very distant future, the product of the chemist’s retort would take the place of the product of the fields.10
It was only a step from the Capitol to the Tarpeian Rock. He who but now had discovered Peru was about to feel more keenly than ever the sharp pangs of poverty; he [194]whom science and fortune had lately conspired to raise to one of the highest chairs in the University was to be forced to descend from the modest desk of a lycée professor; he whom the friendship and admiration of Duruy had dreamed, it is said, of promoting to the high dignity of tutor to the Prince Imperial11 was now to be forbidden to teach the schoolgirls of his own Provence!
For it was about this time that “he attempted to found at Avignon a sort of system of secondary education for young girls,” and delivered, in the ancient abbey of Saint-Martial, those famous free lectures which remained so celebrated in the memory of the generation of that period, and at which an eager crowd thronged to hear him, among the most assiduous members being Roumanille, the friend of Mistral, who knew the exquisite secret of weaving into his melodies “the laughter of young girls and the flowers of spring.”
For no one could explain a fact better than Fabre; no one could elucidate it so fully and so clearly. No one could teach as he did, so simply, so picturesquely, yet in so original a fashion. [195]
And he had the power of communicating to his hearers his own conviction, his profound faith, the sacred fire that inspired him, the passion which he felt for all natural things.
But there were sufficient reasons to set the sectarians all agog and excite the rancour of the envious, some regarding this great novelty of placing the natural sciences within reach of young girls as a heresy and even a scandal, others finding it unsatisfactory that this “irregular person, the child of his own solitary studies, should fill, by his work, his successes, and the magic of his teaching, a place so apart and so disproportionate. Their cavilling, their underhand cabals, their secret manœuvring won an easy triumph.” In what hateful and tragic fashion we must let him tell us in his own words:
The first of these removals took place in 1870. A little earlier, a minister who has left a lasting memory in the university, that fine man Victor Duruy,12 had instituted classes for the secondary education of girls. This was the beginning, as far as was then possible, of the burning question of [196]to-day. I very gladly lent my humble aid to this labour of light. I was
put to teach physical and natural science. I had faith, and was not sparing of work, with the result that I rarely faced a more attentive or interested audience. The days on which the lessons fell were red-letter days, especially when the lesson was botany and the table disappeared from view under the treasures of the neighbouring conservatories.
That was going too far. In fact, you can see how heinous my crime was: I taught those young persons what air and water are; whence the lightning comes and the thunder; by what device our thoughts are transmitted across the seas and continents by means of a metal wire; why fire burns and why we breathe; how a seed puts forth shoots and how a flower blossoms: all eminently hateful things in the eyes of some people, whose feeble eyes are dazzled by the light of day.
The little lamp must be put out as quickly as possible and measures taken to get rid of the officious person who strove to keep it alight. The scheme was darkly plotted with the old maids who owned my house and who saw the abomination of desolation in these new educational methods. I had no written agreement to protect me. The bailiff appeared with a notice on stamped paper. It baldly informed me that I must move out within four weeks from date, failing which the law would turn my goods and chattels into the street. I had hurriedly to provide myself with a dwelling. The first house which we found happened to be at [197]Orange. Thus was my exodus from Avignon effected.13
After this we understand why it was that Fabre cried:
“It is all over; the downfall of my hopes is complete!”
But no, beloved master! All was not over. The immortal work with which your name is connected was as yet to be begun. This ruin, this mortification, this grievous overthrow of all your hopes in connection with the University were even needed to lead you back to the fields, to enable you to raise, in all its amplitude and its exquisite originality, the scientific edifice of which you may say, with the ancient poet: Exegimonumentum aereperennis.14
M. Edmond Perrier very judiciously remarked, in his speech at Sérignan: “In Paris, in a great city, you would have had great difficulty in finding your beloved insects, and entomology would have lost a great part of those magnificent observations which are the glory of French science.”
So it was, in reality, advantageous, as regards his destiny, that Fabre suffered, at this [198]juncture of his history, this accumulation of trials, so grievous to experience, yet so fortunate in their consequences that they remind us of the sublime passage of the Gospel, whose sayings regarding eternal life are often rich in lessons for this our present life: “He that loses his life shall save it.”
(Endofthe first volume in the Frenchedition.) [199]
Everybody knows to-day that heat kills, or so far enfeebles as to render inoffensive, the microbes that infect liquids and make it impossible to preserve them.
This again is one of Pasteur’s happy discoveries, as is conveyed by the very verb topasteurise, which means “to protect against microbes by the action of heat.” We pasteurise milk, beer, wine, etc.
The ancients used to practise the heating of wines. In the house of St. John and St. Paul, discovered in Rome in 1887, beneath the church dedicated to the two martyrs, who were both officers of the Emperor Constantine, the excavators found beside the cellar and the amphoræ of wine, the little room with a fireplace known as the furnarium, which was used for heating wine and drying fruit.
The heating of wines was practised also at Mèze, near Cette, before Pasteur’s discovery.
But the ancient method of heating had nothing in common with pasteurisation. The merchants of Hérault, like the ancients, used to heat wine in order to modify its flavour, to mature it more quickly. Pasteur, on the other hand, heats it to keep it unchanged. To mature wine it is heated slowly in contact with the air. To preserve it, the wine must be rapidly heated to 122° F. in a vacuum. The object and the method are altogether different. ↑
Souvenirs, IX., pp. 329–30. ↑
St. Roch (1295–1327) is represented in his statues with the dog that saved his life by discovering him in the solitude where after curing the plague-stricken Italians, he hid himself lest he should communicate the pestilence to others. A. T. DE M. ↑
The old, partly-demolished bridge at Avignon which figures in the well-known French catch:
“Sur le pont d’Avignon, Tout le monde y danse en rond.”
(A. T. DE M.) ↑
Souvenirs, X., pp. 343 etseq. The Life ofthe Fly, chap xx., “Industrial Chemistry.” ↑
M. François Fabié, ex-professor in the lycée of Toulon, still lives in the neighbourhood of the city, in the Villa des Troènes. ↑
Journald’Aveyron, 8 November 1908. ↑
Souvenirs, X., pp. 338–43; The Life ofthe Fly, chap. xx., “Industrial Chemistry.” ↑
Cf. supra, p. 135. ↑
Souvenirs, X., p. 353. The Life ofthe Fly, chap. xx., “Industrial Chemistry.” ↑
Revue scientifique, May 7, 1910, speech by M. Edmond Perrier. ↑
Jean Victor Duruy (1811–1894), author of a number of historical works, including a well-known Histoire des Romains, and Minister of Public Instruction under Napoleon III. from 1863 to 1869. Cf. The Life ofthe Fly, chap. xx. A. T. DE M. ↑
Souvenirs, II., pp. 125–126. The Mason Bees, chap. V., “The story of my Cats.” ↑
HORACE, Ode xxx., Bk. iii. ↑
