Is class highly recommended for exam?

Hi,
I'll be getting my OCA certification and for the Oracle Database 11g: Administration I 1Z0-052 exam I am wondering if it is highly recommended to take the preceding class. I have about 2.5 years managing Oracle servers as a DBA and have upgraded and built several 11g environments by now, as well as day to day administration. Looking over the class topics, there would not be much that I haven't already learned myself but I am wondering if it helps when it comes to the exam, as I know the exam questions can be very specific and not necessarily rooted in practical application so my only concern is in that regard. Is the class geared toward prepartion for the exam and do the materials also speak to the exam?
Thanks

jpearsonva wrote:
Hi,
I'll be getting my OCA certification and for the Oracle Database 11g: Administration I 1Z0-052 exam I am wondering if it is highly recommended to take the preceding class. I have about 2.5 years managing Oracle servers as a DBA and have upgraded and built several 11g environments by now, as well as day to day administration. Looking over the class topics, there would not be much that I haven't already learned myself but I am wondering if it helps when it comes to the exam, as I know the exam questions can be very specific and not necessarily rooted in practical application so my only concern is in that regard. Is the class geared toward prepartion for the exam and do the materials also speak to the exam?
ThanksSure you are OCA certificate you will be getting .... but no 1z0-052 have you passed yet so no OCA certificate you will get yet ;-)
Most seriously.
If you are a well practiced DBA and confident with the 1z0-052 topics then buying the exam orientated Oracle Press or Sybex book as a double check would probably be the most effective route to OCA IMHO to check you have not any knowledge gaps (these are not perfect, but the can be useful). A possible exception might be if you have a WDP course provider nearby (Never mind hte quality feed the width (for the money). (wdp.oracle.com).
However if you go forward for he 11g DBA OCP then you will need a verified course as part of the pre-requisites. This can be one directly relevant to the OCP course, of there are others that may extend into an area you may wan to get into.
You instance IMHO there is little point in an experienced DBA doing a course than substantially covers a lot of what he already knows, perhaps better to seek something off the approved course list which expands the knowledge ( dataguard, tuning, Clusterware/RAC). Having said that there is a lot of RMAN in the database admin II, so if you have experienced that much that may be useful. Costs of courses can vary, and course cost may be a factor.
I assume you have already browsed http://certification.oracle.com ; ensure you have understood the mandatary training courses properly.
Having said that, if you have the money Oracle University training is usually excellent.

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    http://www.monoprice.com/products/product.asp?c_id=101&cp_id=10110&cs_id=1011002 &p_id=8463&seq=1&format=2#description
    I'll order one and see how it goes.
    Thanks
    Adam

  • Recommendations for Analog to Digital conversion

    I am seeking the help of all the Pros out there. I am moving my extensive analog music collection (LP/Cassette) to the digital world. Are there any recommendations for creating a CD-quality sound/volume level. I am currently using the standards (click/pop/hiss reduction, compressor and/or hard limiting). I am recording at 44.1/16 Bit and saving files in mp3 PRO-320 kbps for sake of storage. I welcome any assistance in regard to Plug-ins, equalization or other suggestions.
    Thank you in advance
    Paddy 41
    Pentium 4/3.2 GHz, 2.0 MB Ram, Soundblaster X-Fi Elite Pro, Windows XP PRO SP3, Adobe Audition 3.0, Sony PS-LX250H Turntable, Denon DRM-600 Cassette.

    >I am recording at 44.1/16 Bit and saving files in mp3 PRO-320 kbps for sake of storage. I welcome any assistance in regard to Plug-ins, equalization or other suggestions.
    You shouldn't save files as MP3s until all the processing you want to do has been done - this is a lossy format, and every time you open a file saved like this it gets re-decoded, and then re-encoded when you do a save. And the quality degeneration is progressive. And unfortunately, recording your files as 16-bit is also not going to be quite the thing to do if you are going to do any sort of amplitude processing at all, either, especially if you are recording at a lower-than-optimum amplitude, which is usually the case. 44.1k is fine, though!
    So, to get over the potential problems, the thing to do is to digitise your files as 44.1k 32-bit floating point, and until all processing is done, store them as Windows PCM wav files in this format, because that is uncompressed, which is what you need.
    If you want to reduce noise on cassette recordings, it's worth using a fairly high FFT setting, even though it takes longer to do the processing. Since most of the noise is not LF, this tends to work better, although there is also a case for doing the NR twice, once with a lower FFT setting and once with a higher one, but not trying to take out too much in one go.
    As for click reduction - well, you have to experiment. But letting the software determine all of the levels tends to give you a pretty good starting point. Another trick that's sometimes worth it is to transform your files temporarily to M-S stereo instead of L-R, and treat each channel separately - you generally get different levels of clicks in each, usually more in the S signal, whilst the M cancels out quite a few. And in general, the less clicks you can get away with processing, the better.
    Hard limiting? Never used it on a conversion like that at all, and wouldn't even consider it - transients are already likely to be distorted, and hard limiting them further seems like a
    very strange thing to do...
    Other tools that are useful, especially on cassettes are iZotope's Ozone (some of which is already in Audition) and HarBal. You can restore usually distorted frequency responses with the latter, and get a good average value automatically and easily. And judicious use of Ozone's enhancer can make them seem a lot less like the results came from a cassette...
    One of the useful things you can do with Ozone is to selectively widen parts of the spectrum. Since most records of music tend (for reasons of tracking) to have had the bass forced to be virtually mono, with subsequent similar consequences for other instruments with substantial LF content, it's worth expanding just about everything under about 250Hz, possibly by more than you might think.
    Generally, 'normal' EQ doesn't have a lot of use when processing vinyl, if it's relatively recent. And that generally means anything from the 60's onwards. If you think things are seriously wrong, the chances are that it's your monitors and environment that are misleading you. Just bear in mind that when this stuff was produced, it was all monitored in a professional environment - more so than it might be today, even.
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  • Is UCertify any good for exam 1Z0-007?

    Hi, I am thiking about buying UCertify practise questions for exam 1Z0-007, i am wondering if anyone has used it in the past and how good is their product?
    I can't afford Transcender prep material, the other option is SelfTest but they provide money back guarentee in 2nd shot. Ucertify offers more practise questions then SelfTest but really don't know how good they are?
    Does SelfTest offer same practise questions which comes in Oracle press book CD?
    I have already studied the sybex and Oracle press book but there are few topics which you really can't memorized them like functions , sybex book has covered alot of functions as compared to Oracle press book and i know the half of them becuase i have used them in my job. So if i buy SelfTest practise questions then do i need to practise only those functions which have been covered in practise exams? Or other function topics can be asked in real exam?
    Thanks

    user10878991 wrote:
    Hi, I am thiking about buying UCertify practise questions for exam 1Z0-007, i am wondering if anyone has used it in the past and how good is their product?
    I can't afford Transcender prep material, the other option is SelfTest but they provide money back guarentee in 2nd shot. Ucertify offers more practise questions then SelfTest but really don't know how good they are?
    Does SelfTest offer same practise questions which comes in Oracle press book CD?
    I have already studied the sybex and Oracle press book but there are few topics which you really can't memorized them like functions , sybex book has covered alot of functions as compared to Oracle press book and i know the half of them becuase i have used them in my job. So if i buy SelfTest practise questions then do i need to practise only those functions which have been covered in practise exams? Or other function topics can be asked in real exam?
    ThanksInteresting question.
    Its always good to refer back to [http://blogs.oracle.com/certification/2009/05/the_route_you_choose.html]
    Usually I find myself refering people back to that because they are going for unauthorised learning material, but I'll refer you to that as compliment for staying on the right route, and also because it has a couple of tips that might help.
    Obviously Transcender/Selftest are the authorised practice test providers, (though they are now both owned by the same company Kaplan IT) and it is not recommended to buy both Transcender and Selftest for the same exam as material may be similar. Generally they market Transcender is better but more expensive (certainly for more recent exams).
    [http://www.certguard.com] shows the offical Ucertify website as a SAFE website so you would be IMHO showing sufficient due dillegence in purchasing from this Vendor. Be aware however that unscrupulous third parties may be trying to either pretend to be Ucertify when they are not by setting up similar sounding websites and others may be selling Ucertify material in beach of conditions. Anyway a quick prowse round for me in the UK shows:
    A uCertify 1z0-007 is currently on special offer at just under 1/2 the price of the oracle exam
    A Selftest Software Practice Test 30 day online access is about just over 1/2 the price of the oracle exam
    A Selftest unlimied time software download is a about 80% of the cost of the oracle exam.
    At a guess without looking Transcender will probably be 20-30% more expensive than Selftestsoftware.
    Bear in mind I have not seen tests from any of these Vendors myself. From my memory, which is imperfect, I recall seeing comments that uCertify was typically of a lower quality than say transcender for some tests. However even if this was true it may have changed.
    To some extent for you wishing to minimze expenditure the question is is forking out extra money on practice tests worth it when you may pass the exam anyway?
    To some exent there should be enought practice tests between the Orace and Sybex Books and associated CDROM's to cover the exam well enough anyways (though bear in mind this is an older exam was have had an update to topics since exam was printed .... and arguably quality has usually improved somewhat with books for later exams like 1z0-051). You may however have exhausted all he test/practice questions too early, and a test question/exam is mos valuable the first time you see it, and it loses value the second time you see it as you may remember the answer. I try to take practice tests only after I think I have practiced and learnt all the material fully (and this applies even to the end of chapter practices).
    My suggestion would be:
    Dont answer any practice tests for a week (or two).
    Make flashcards of the thing you need to memorize.
    Practice and revise through the books you hve (but dont look at questions).
    To not revise immediately before taking practice tests.
    Then go through the questions at the end of the chapters.
    However well you did re-revise the chapter afterwards, make ore flashcards if necessary.
    If you got less than say 85% on any chapter redo that 2/3 days later.
    Then take CDROM practice tests. If your getting less than 85% then dont go back to the next test but redo difficult areas.
    If your getting 80 - 85% on the last CDROM test then take the exam.
    (or if you really feel you need to buy some prctice tests).
    Lookout in the FAQs for advice by Hans also.
    Edited by: bigdelboy on 21-Nov-2009 03:33 (Be aware these Oracle Press Books, Tests and CDROMs may have occasional mistakes, wrong answers and CDROM glitches ... this can be especially true of the older publications)

  • I just purchased MBP and it is my first Apple computer. How concerned should I be about virus software and what do you recommend for security software?

    I just purchased MBP and it is my first Apple computer. How concerned should I be about virus software and what do you recommend for security software?

    1. This comment applies to malicious software ("malware") that's installed unwittingly by the victim of a network attack. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the victim's computer. That threat is in a different category, and there's no easy way to defend against it. If you have reason to suspect that you're the target of such an attack, you need expert help.
    2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user, but internally Apple calls it "XProtect." The malware recognition database is automatically checked for updates once a day; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
    The following caveats apply to XProtect:
    It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets (see below.)
    It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
    3. Starting with OS X 10.7.5, there has been another layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't actually been tested by Apple (unless it comes from the Mac App Store), but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. For most practical purposes, applications recognized by Gatekeeper as signed can be considered safe.
    Gatekeeper has, however, the same limitations as XProtect, and in addition the following:
    It can easily be disabled or overridden by the user.
    A malware attacker could get control of a code-signing certificate under false pretenses, or could find some other way to evade Apple's controls.
    For more information about Gatekeeper, see this Apple Support article.
    4. Beyond XProtect and Gatekeeper, there’s no benefit, in most cases, from any other automated protection against malware. The first and best line of defense is always your own intelligence. All known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and the malware attacker. If you're smarter than he thinks you are, you'll win.
    That means, in practice, that you never use software that comes from an untrustworthy source. How do you know whether a source is trustworthy?
    Any website that prompts you to install a “codec,” “plug-in,” "player," "extractor," or “certificate” that comes from that same site, or an unknown one, is untrustworthy.
    A web operator who tells you that you have a “virus,” or that anything else is wrong with your computer, or that you have won a prize in a contest you never entered, is trying to commit a crime with you as the victim. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
    Pirated copies or "cracks" of commercial software, no matter where they come from, are unsafe.
    Software of any kind downloaded from a BitTorrent or from a Usenet binary newsgroup is unsafe.
    Software with a corporate brand, such as Adobe Flash Player, must be downloaded directly from the developer’s website. If it comes from any other source, it's unsafe.
    5. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was never a good idea, and Java's developers have had a lot of trouble implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style "virus" affecting OS X. Merely loading a page with malicious Java content could be harmful. Fortunately, Java on the Web is mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice.
    Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it — not JavaScript — in your browsers. In Safari, this is done by unchecking the box marked Enable Java in the Security tab of the preferences dialog.
    Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a specific task, enable Java only when needed for the task and disable it immediately when done. Close all other browser windows and tabs, and don't visit any other sites while Java is active. Never enable Java on a public web page that carries third-party advertising. Use it only on well-known, password-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
    Follow these guidelines, and you’ll be practically as safe from malware as you can be.
    6. Never install any commercial "anti-virus" or "Internet security" products for the Mac, as they all do more harm than good, if they do any good at all. If you need to be able to detect Windows malware in your files, use the free software ClamXav — nothing else.
    Why shouldn't you use commercial "anti-virus" products?
    Their design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere.
    In order to meet that nonexistent threat, the software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
    By modifying the operating system, the software itself may create weaknesses that could be exploited by malware attackers.
    7. ClamXav doesn't have these drawbacks. That doesn't mean it's entirely safe. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
    ClamXav is not needed, and should not be relied upon, for protection against OS X malware. It's useful only for detecting Windows malware. Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else.
    A Windows malware attachment in email is usually easy to recognize. The file name will often be targeted at people who aren't very bright; for example:
    ♥♥♥♥♥♥♥♥♥♥♥♥♥♥!!!!!!!H0TBABEZ4U!!!!!!!.AVI♥♥♥♥♥♥♥♥♥♥♥♥♥♥.exe
    ClamXav may be able to tell you which particular virus or trojan it is, but do you care? In practice, there's seldom a reason to use ClamXav unless a network administrator requires you to run an anti-virus application.
    8. The greatest harm done by anti-virus software, in my opinion, is in its effect on human behavior. It does little or nothing to protect people from emerging threats, but they get a false sense of security from it, and then they may behave in ways that expose them to higher risk. Nothing can lessen the need for safe computing practices.
    9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.

  • Aperture Library Recommendation for 3.3?

    I have for some time worked with my Aperture library located on a USB connected disk drive following guidance I'd seen somewhere about not placing it on the same disk as the application software.
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    I have for some time worked with my Aperture library located on a USB connected disk drive following guidance I'd seen somewhere about not placing it on the same disk as the application software.
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    How large is your library? Upgrading should not take that long. Usually the upgrade does not take much processing, and will not recreate all previews. But Aperture 3.3. is very sensitive to corrupted libryries. Apple advises to rebuild the library before upgrading while still on Aperture 3.2.4, and only then upgrade the fixed library. But I see you are in good hands in the other thread with Kirby Krieger as advisor.
    Regards
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