|Exam Name||:||DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade|
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|Updated On||:||April 24, 2019|
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000-546 exam Dumps Source : DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade
Test Code : 000-546
Test Name : DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade
Vendor Name : IBM
Q&A : 78 Real Questions
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youngsters that db2set has been round for a long time, it appears that db2set isn't at all times neatly understood. in line with IBM’s documentation, the IBM DB2 Profile Registry command (db2set) makes it possible for for centralized manage of environmental variables. read on to be trained more...
one of the first troubleshooting opportunities I ever had with DB2 LUW involved db2set. That changed into with DB2 UDB 5.0 and was more than a decade ago. Now I’m the usage of DB2 9.7 and that i’m nonetheless the usage of db2set, so it actually has some staying energy. however that db2set has been round for a while, in talking to other DBAs it seems that db2set isn't all the time neatly understood.
in accordance with IBM’s documentation, the DB2 Profile Registry command (db2set) enables for centralized manage of environmental variables. There are distinctive tiers of the Profile Registry.
From own adventure, I have found some enjoyable things about db2set. as soon as, when varied DBAs had been making an attempt to use db2set at the same time to update values for a similar instance, my db2set -all output displayed inconsistent values. This changed into without difficulty fixed through simply selecting the whole set of updates we desired to make and then having one grownup do all the db2set commands. Of course, that become on a outdated free up of DB2 so it might now not be an issue with DB2 9.7.
I also found that DB2SYSTEM and DB2INSTDEF, that are set at the world degree, can give some decent tips. simply through looking on the DB2SYSTEM variable, i used to be as soon as capable of assess that a complete environment had been set up incorrectly the use of a file gadget copy method versus a standard and supported DB2 method. That one discovery saved me a lot of troubleshooting time.Are you and DB2SET Acquainted?
Most of us have had at the least some publicity to db2set. bear in mind this?$> db2set db2comm=tcpip
Or maybe if your store makes use of SAP, you've got used this special aggregate registry variable which units a lot of values via one profile registry update.$> db2set DB2_WORKLOAD=SAP but have you ever used this one? $> db2set -lr
If now not, you can be missing some decent tips. When the usage of the –lr choice with db2set, which you can see all of the supported registry variables that can be found for us with the product version for this installation.
Who can update the DB2 profile registry? The answer depends upon the working system. On a UNIX platform, someone who holds SYSADM for the illustration can update registry values for that instance. On windows, when extended safety is enabled, a SYSADM who belongs to the DB2ADMNS group can set and replace the registry values.
When the use of the DB2 Command Line to exchange a DB2 Profile variable value at the native or default illustration degree, the command is readily:db2set <variable>=<cost>
instance:db2set DB2COMM=tcpip db2stop db2start
(while the new value for DB2COMM is automatically saved in the profile registry, the exchange isn't applied except a restart.)DB2SET Helps Itself
if you want greater counsel, it is convenient to get it. DB2SET provides a command line aid choice it's truly helpful! simply including a query mark to the conclusion of the db2set command returns a full screen of assistance.
$> db2set ?$> db2set ? DBI1300N db2set displays, sets, or removes DB2 profile variables. db2set [variable=[cost]] [-g|-i instance [db-partition-number]] [-all] [-null] [-r [instance] [node-number]] [-n DAS node[-u user[-p password]]] [-l|-lr] [-v] [-ul|-ur] [-?|-h]
The command alternatives are:-g access the international profile variables. -i Specifies the instance profile to use instead of the current or default. -n Specifies the far flung DB2 Administration Server node name. -u Specifies the person identification to make use of for the Administration Server attachment. -ul access the person profile variables -ur Refreshes consumer profile variables -p Specifies the password to use for the admin server attachment. -r Resets the profile registry for the given illustration. The default/current illustration can be used if none is provided. -l Lists all example profiles. -lr Lists all supported registry variables. -v Verbose mode. -? shows the command assist message. -h equal as -? option. -all shows all occurrences of the native ambiance variables as defined in: * The environment, denoted by [e] * The consumer degree registry, denoted by [u] * The node level registry, denoted through [n] * The example degree registry, denoted by [i] and * The world degree registry, denoted through [g] -null sets the variables price to null on the precise registry level to stay away from searching up the cost in the next registry degree as defined within the variable cost search order. Notes: * db2set without a variable identify displays all described variables. * db2set <variable> shows <variable>'s cost. * db2set <variable>= (nothing) deletes the <variable>. * db2set <variable>=<value> modifies the <variable>'s cost. * db2set <variable> -null sets <variable>'s cost to NULL. * db2set <variable> -all displays all described <variable>'s values. * db2set -ur refreshes the current user profile. * db2set <variable> -ul displays described <variables> at the consumer degree. * db2set -all displays all described variables in all registry ranges.
probably the most typical solution to assess the set of values kept within the DB2 Profile Registry is to use the db2set –all command. right here’s an illustration.db2set -all [e] DB2PATH=C:\application information\IBM\SQLLIB [i] DB2PROCESSORS=0,1 [i] DB2INSTPROF=C:\ProgramData\IBM\DB2\DB2COPY1 [g] DB2_COMPATIBILITY_VECTOR=MYS [g] DB2_EXTSECURITY=sure [g] DB2SYSTEM=LOCKSMITH [g] DB2INSTDEF=DB2 [g] DB2ADMINSERVER=DB2DAS00
provided you've got the relevant authority, which you can also use the SYSIBMADM.REG_VARIABLES administrative view, which will also be queried to get the registry settings from all database partitions. The effect set might possibly be distinct from what you could see when the usage of the db2set -all. The mismatch can ensue if a DB2 registry variable is configured the use of the db2set command after the illustration has been begun. REG_VARIABLES best returns the values that had been in impact when the instance became begun.
right here’s an instance:db2 "choose CHAR(REG_VAR_NAME,35) AS REGVAR, CHAR(REG_VAR_VALUE,35) AS value, stage FROM desk(REG_LIST_VARIABLES()) AS REG ORDER by three,1" REGVAR value stage ------------------------- ----------------------------------- ----- DB2PATH C:\application info\IBM\SQLLIB E DB2ADMINSERVER DB2DAS00 G DB2INSTDEF DB2 G DB2SYSTEM LOCKSMITH G DB2_COMPATIBILITY_VECTOR MYS G DB2_EXTSECURITY yes G DB2INSTPROF C:\ProgramData\IBM\DB2\DB2COPY1 I DB2PROCESSORS 0,1 I considering in regards to the Future
With each and every new version of DB2, the profile registry alternatives are field to exchange. So earlier than upgrading, or performing a brand new set up, one investigation I undertake is to gain knowledge of concerning the a number of alternate options for db2set as they apply to that certain product level. The IBM DB2 guidance middle is always my aid for that. For DB2 9.7, that you may locate assistance for the db2set profile registry options beginning at http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/index.jsp?subject matter=/com.ibm.db2.luw.admin.regvars.doc/doc/c0004934.html. Drilling down from that hyperlink will offer you all of the particulars.last suggestions
once in a while there are some very helpful Profile Registry variables that can also be set to enhance performance or support DBAs clear up application issues. It’s like opening a surprise reward, you understand it could be anything good, however you’re simply not sure how respectable it may be unless you look. once you unwrap the suggestions about db2set, you're going to understand a way to use that competencies as a gift in your DB2 environment.
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The ordinary pay for a Database Administrator (DBA) with IBM DB2 abilities is $37.fifty seven per hour.
The standard pay for a Database Administrator (DBA) with IBM DB2 talents is $85,995 per 12 months.profits $59,001 - $119,955 Bonus $998 - $11,298 earnings Sharing $4,000 total Pay (? XTotal Pay combines base annual earnings or hourly wage, bonuses, earnings sharing, information, commissions, time beyond regulation pay and other kinds of cash income, as relevant for this job. It doesn't encompass fairness (stock) compensation, money cost of retirement merits, or the value of alternative non-money advantages (e.g. healthcare). ) $fifty eight,004 - $124,713 Hourly fee $15.77 - $65.89 time beyond regulation $fifty one.22 Bonus $998 - $eleven,298 income Sharing $4,000 complete Pay (? XTotal Pay combines base annual salary or hourly wage, bonuses, profit sharing, counsel, commissions, overtime pay and different sorts of cash earnings, as applicable for this job. It doesn't consist of equity (stock) compensation, money price of retirement merits, or the cost of alternative non-cash merits (e.g. healthcare). ) $58,004 - $124,713 Job Description for Database Administrator (DBA)
A database administrator (DBA) is an IT professional who ensures that the utility used to control a database is correctly maintained to allow quick access when obligatory. as a result of steady entry, searches, site visitors are likely to have a dangerous effect on any business database, the DBA works to hold the efficiency of the servers. he or she additionally will usually work to make sure facts security, coordinating with an IT safety expert or crew in larger businesses to assist retain the integrity of delicate business statistics.read greater...
one of the crucial main jobs of a database administrator is to preserve an organization's assistance available in an effective manner. Many corporations require that records be attainable via cloud servers so that it may be accessed at any time. definitely, a DBA residences handiest a small percentage of facts in a cloud surroundings, as a result of the price and security issues created when doing so. youngsters, the DBA ensures that cloud access to facts will also be achieved quickly and efficiently.
To work as a database administrator, someone usually will need a bachelor's diploma in computing device science, an associate's degree in database administration, or an analogous degree. Many groups will also require a DBA candidate to have a background in IT work on database administration groups. usually, an administrator works common enterprise hours during the week, however many groups require a DBA to be obtainable on call at all times, in case of a system emergency. (Copyright 2019 PayScale.com)
Database Administrator (DBA) tasks
Pay via adventure for a Database Administrator (DBA) has a favorable fashion. An entry-level Database Administrator (DBA) with under 5 years of experience can expect to earn a regular total compensation of $71,000 according to 33 salaries provided by means of anonymous users. ordinary total compensation includes tips, bonus, and overtime pay. A Database Administrator (DBA) with mid-career experience which comprises personnel with 5 to 10 years of experience can predict to earn a typical total compensation of $seventy eight,000 in accordance with 42 salaries. An experienced Database Administrator (DBA) which contains employees with 10 to twenty years of event can predict to earn a regular complete compensation of $ninety one,000 in line with 23 salaries. A Database Administrator (DBA) with late-profession experience which contains personnel with more desirable than 20 years of adventure can are expecting to earn a standard complete compensation of $ninety five,000 in accordance with sixteen salaries.
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I’m sure you’ve noticed that many security related web sites incorporate a lock as a part of their logo. I’ve always thought that a single lock was a good start, but that security should have multiple locks at multiple layers with multiple keys (and perhaps some barbed wire, an electric fence, a moat, a mean junkyard dog, an armed guard and a few iron bars as well). With all these locks and keys, some locksmith skills are certainly useful. I’d like to introduce you to some MY favorite DB2 Locksmith tips. I hope that they will help you as you apply your own locksmith skills to your DB2 9.7 Linux, UNIX or Windows databases.DB2 9.7 and Separation of Duties (SoD)
In DB2 9.7, there are numerous opportunities for achieving a more robust security architecture. One of those is the ability to truly employ the concept of “Separation of Duties” also known as SoD. In thinking about security and some of the governmental and industry security regulations that are in place, one mandate is to lessen security risk by lessening the power held by one individual or group. Even without a mandate, common sense and “security in depth” principles serve to remind us that a multi-layered defense, incorporating least privilege and separation of duties, is a wise approach toward data protection. Given recent headlines regarding security breaches, data certainly seems to need to be protected; in fact, it almost seems to be begging us to do a better job of protecting it. DBAs and technologists who live close to all this valuable data serve at the forefront of this battle to protect and secure these enterprise assets. Making SoD a reality is one step that they can incorporate into their defense-in-depth armor.
Before we look at the current DB2 security product features, it may help to understand some history regarding the high level DB2 LUW authorities and how they behaved in previous versions of DB2. In the past, the SYSADM authority, the highest level of authority, conferred a lot of power; power which included the ability to configure, start, stop, prune or extract any audit data as well as the ability to access and manipulate data for any database in that instance. Next in the power hierarchy was the DBADM authority, the highest database authority, which also conferred the ability to access data. Even though it might not have been wise or necessary, many shops allowed DBAs to hold SYSADM (which also implicitly conferred DBADM) just to make sure anyone on the DBA team could do anything they might possibly need to do in the day-to-day performance of their tasks. In other words, in a many enterprises, a DBA could do pretty much anything that they wanted regarding the instance or the database, including reading or changing user data if they desired. This functional situation certainly didn’t meet the security principles of least privilege or separation of duties.
Beginning in DB2 9.1, a new security functional job designation was introduced, that of the Security Administrator (SECADM) for the database. With DB2 9.7, the SECADM tasks are intensified and Separation of Duties abilities are specifically introduced. If your shop has only one DBA, then making SoD work is going to be a challenge, but most shops will be able to easily track their functional job tasks to the DB2 9.7 authorities and privileges.
In general, the High Level SoD features for newly createddatabases in DB2 9.7 are:
There are also some new and re-defined authorities. Some of these were carved out of previous authorities that, in the past, were conferred with DBADM authority. Whether new or re-vamped, all of them lend themselves to the Separation of Duties approach to task delegation including:
There are some important considerations regarding SoD functionality for enterprises currently using previous versions of DB2 as they prepare to move to DB2 9.7. Because previous versions of DB2 databases must go through a migration process when moving to DB2 9.7, there are some specific differences in how the authorities are assigned for ‘migrated’ versus ‘newly created’ databases. For migrated databases:
Once the migration is complete, however, the SECADM may want to revoke these “migrated authorities” and re-grant them based on the new SoD security model. Of course, since this is a pre-existing database, authority changes should only be undertaken following some solid analysis and testing to make sure that nothing is going to break once the changes are made, unless you just happen to like chaos.
Obviously, the true separation of the SECADM and DBADM roles is a major boost to the principles of SoD and least privilege. However, to me, one of the best SoD features is that DBAs no longer have to gain access to the data as a “ride along” with the ability to do their administration tasks. The SYSADM authority now matches the role it should play, as the “manager of the instance.” The high level DBADM authority has been scaled back to allow functionality without privilege escalation. DBAs typically don’t need to see the data and now, they don’t have to automatically acquire the ability to do so. In this case, a little less power means an enhanced security architecture.
So, what does all this mean for DBAs when thinking about SoD? The answer is, “it depends”. I’ve worked in enough shops to know that there is no standard template for aligning DBAs to tasks, so what might work regarding SoD in one enterprise could be a complete disaster in another. However, thinking about this logically, DB2 9.7 has provided exactly what we wanted -- multiple security layers, multiple locksmith opportunities and a greatly enhanced layered security configuration ability. Now we have to do our part to make Separation of Duties work for our enterprise.A Few Thoughts & Some Important Acknowledgements
The more I write on technical subjects, the more I realize that I never have enough time or enough words to completely cover a topic. For example, in this article, I touched briefly on the DBADM and SYSADM authorities, but there is so much more that could be discussed about those two authorities and how they relate to a robust security architecture than I was able to cover here. I would encourage you to delve deeper into the specifics for these two high level authorities and consider all the security implications.
Sometimes writing a technical article such as this is like taking a wicked IQ test. You turn the box slightly and the problem looks completely different from the new angle. For that reason, it is always a good idea to have a network of technical experts to call on for clarification or assistance. I have been very fortunate to have found a small army of individuals who put up with my incessant questions and who recognize that sharing technical information is good for us all. I can’t thank them all here, there are just too many, but Kevin See, Susan Visser and Roger Sanders have been there for me from the beginning and I’d like to take this opportunity to publicly acknowledge their continued support and encouragement.
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You certify by passing one or more exams. The Roadmap to DB2 Version 8 certification in Figure 2 shows that you certify as a DB2 Database Associate by passing the required entry test, "DB2 Family Fundamentals, 700." Then take any of the five additional certification exams, depending on your area of interest. For example, to become a certified DB2 Database Administrator, pass "DB2 DBA for Linux, UNIX and Windows, 701," or certify as a mainframe DBA by passing "DB2 DBA for z/OS, 702." (Note- exam #702 will be available in 1st quarter 2004). You could also become a Certified Application Developer by passing "DB2 Family Applications Development, 703." Or certify in Business Intelligence by taking "DB2 Business Intelligence, 705," or specialize in the Content Manager via exam #442.
Figure 2. The DB2 Version 8 Certification "Roadmap"
A really nice feature of the DB2 certification program is its modularity. After passing the "DB2 Family Fundamentals" entry test #700, take whichever exam(s) you like. Each one you pass gives you another certification.
IBM introduced several new features in the Version 8 certification program. First, there is a tripartite path yielding three ascending levels of DBA certification. This clear path replaces the grab-bag of advanced "Certified Solution Expert" (CSE) exams in Version 7:
Table 1. The version 8 DBA certification pathStep Exam Number Exam Title Certification 1. 700 DB2 Family Fundamentals Database Associate 2. 701 DB2 Database Administration Database Administrator 3. 704 DB2 Advanced Database Administration Advanced Database Administrator
The Version 8 program also introduces a single test by which Version 7-certified DBAs can upgrade their certification. This is called "DB2 for Linux, Unix and Windows Version 8 Upgrade Exam, 706." If you are a Version 7 certified DBA, you can either take this new upgrade test, or simply pass the standard database administration exam #701 to upgrade your DBA cert to Version 8. The Upgrade test features fewer questions and is a shorter test, but many more study resources are available to help you pass the standard DBA test, #701. In Version 8, IBM introduced a new test called the "DB2 Problem Determination Mastery Exam". The exam covers problem determination using DB2 tools, for installation, configuration, communications and the like. Technically, it is not a certification exam, so it has no formal pre-requisites, nor do you achieve an official certification by passing it. This test will be of great interest to those who certify as a DBA and want to strengthen (and prove) their problem identification and resolution abilities. The test costs only $40 and can be taken online via the web. For full information on this exam, and a free, downloadable set of nine study tutorials, visit the exam web page at http://www.ibm.com/software/data/support/pdm/db2exam.html.
To take any certification test, simply visit Prometric, the testing organization. If you're outside of North America, visit testing organization Pearson VUE. These Web sites list testing locations (there are usually many to choose from in any city), and you can sign up for exams online. Show up at your scheduled exam time with two forms of picture identification. They'll assign you a PC onsite, where you'll take the test via a standardized multiple-choice interface. Table 2 shows how many questions are on each DB2 exam, how many you need to correctly answer to pass, and how long you have to take the exams.
Table 2. Exam informationExam Exam Title Number of questions Correct questions to pass Time (minutes) 700 DB2 UDB V8.1 Family Fundamentals 54 61% 75 701 DB2 UDB V8.1for Linux, UNIX and Windows Database Administration 70 61% 90 702 DB2 UDB V8.1 for z/OS Database Administration n/a n/a n/a 703 DB2 UDB V8.1 Family Application Development 63 57% 75 704 DB2 UDB V8.1 for Linux, UNIX and Windows Advanced Database Administration 57 56% 75 705 DB2 Business Intelligence Solutions V8.1 56 58% 75 706 DB2 UDB V8.1 for Linux, UNIX and Windows Database Administration Upgrade exam 30 55% 40 442 DB2 Content Manager V8 64 64% 90 n/a DB2 Problem Determination Mastery n/a n/a 60
Before starting the certification process, read the IBM "terms and conditions" and current explanation for their program to ensure you understand and feel comfortable with it before committing.
Datical Inc., which makes software that automates the release of databases in sync with applications, is teaming up with Pivotal Software Inc. to make it easier for users of Pivotal’s DevOps-oriented Concourse continuous development platform to use Datical services.
Datical manages application database changes alongside application code and keeps everything – including code, people and processes – in sync as new releases move from development to production. It’s targeting a shortcoming of the typical application development process: “We are still manually updating our databases whenever we release an application,” said Robert Reeves, Datical’s co-founder and chief technology officer. The use of a manual update process “is mind-blowing with all the other technologies we’re adopting,” he said.
Concourse is a continuous integration/continuous delivery open source project that’s popular with Pivotal Cloud Foundry users because of its container-based builds, flexible integrations and visual dashboard. Inability to quickly change database schemas is a bottleneck in the agile development process that can delay code releases by days or longer, Reeves said.
Datical automatically examines SQL scripts created by developers and aligns them with a common object model. “We create a package so you have an immutable artifact that goes from development to test to production just like your app code,” Reeves said. The software checks for inefficiencies, such as the use of multiple indices or joins, and flags them before changing the schema.
“We do all the things that a database administrator does with a SQL script,” Reeves said. “We’ll review to make sure it’s syntactically correct and adheres to corporate and regulatory standards.”
The software currently works on Oracle Corp.’s namesake DBMS; IBM Db2 for Linux, Unix and Windows; Microsoft Corp.’s SQL Server; and EnterpriseDB Corp.’s Postgres DBMS. Future support is planned for Hadoop, MongoDB, Cassandra and MySQL and its variants, Reeves said.
Datical’s containerized image can be run with Concourse as part of a testing pipeline to enable application development teams to push application and database changes through the release cycle at the same time. The company’s will cross-sell each other products, although the arrangement isn’t exclusive, Reeves said.Image: Flickr CC Since you’re here …
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