Interview question

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• Typical interview question

  Hi all

  I have a typical interview question, I tried the solution, but did not find.

  1 Int that: scheduled backup RMAN is running normal and run DBA "shutdown" command for an interview without knowing about backup, will, RMAN work ends or gets killed?

  My answer: because it's a normal shutdown, it should wait until existing complete process and restrict new connections

  2 Int that: If there are two channels allocated for the backup of the db and a channel separate for archivelog, the rman job status is db backup is complete and has been asked to stop, he will start archivelog backup channel?

  Run {allocate channel d1 type disk;}

  allocate channel d2 type disk;

  backup database;

  output channel d1;

  output channel d2;

  allocate channel d3 type disk;

  ARCHIVELOG backup all;

  output channel d3;

  }

  I'm confused here, I tried to find the answer on the forum, as well as google, but did not find. Unfortunately I do not have a test machine to try this scenario myself. Therefore, ask your valuable contributions.

  Also let me know if my assumption is correct and to expect all connections stop normal and transactional (only users or RMAN, expdp, etc as well), I check this link, but it is not categorize connections http://docs.oracle.com/cd/E11882_01/server.112/e16604/ch_twelve042.htm

  Thank you very much in advance!

  AbbasDBA

  As the session already exists, rman allocates channels at the initial stage only, it reuses just channel placement phase by phase. So in this case it will not stop, it will continue with archives too

• Need to reply and report interview question and Oracle Forms 10 G

  Hi gurus

  Soon, I expect my interview for Oracle Forms and Reports 10 G, I'd appreciate it if someone provides me with assistance to find the answers and the related question. Thank you

  Concerning

  Shu

  
  

  Hello

  Google is your friend

  http://www.coolinterview.com/type.asp?iType=64

  http://asset-9.soup.IO/asset/10511/3383_9441.PDF

  http://javarevisited.blogspot.com/2012/12/top-10-Oracle-interview-questions-and-answers-database-SQL.html

  Amatu Allah

• Need answers to 2 interview questions

  Hi friends, need answers for interview questions 2

  1. the Virtual Machine is not manageable / connectable after successful vMotion. What is the reason?

  2. a company has 2 ESXi hosts, if one of the ESXi host fails, the virtual machines from the host failed ESXi does not move to the ESXi host direct. What could be the reasons.

  Kind regards

  Sirot Vijay

  Hello

  To confirm:

  (1) If you have a group of ports that exist on both hosts, but has been configured incorrectly on a specific host, which could cause the problem. That's the problem with the standard switches and port groups because they are configured individually for each host, which leaves room for human error. For example, you may have the incorrect VLAN ID assigned group of ports or switch on that is it might have an uplink that is different from the previous host. It is also possible that the port group is may not be configured on the host at all, it is possible to be overridden.

  (2) you can select the behavior of the virtual machine in the event of an appearance of HA. If you select the cluster and view the HA of vSphere features, you have "Options for the Virtual Machine.  Here it is possible to change the priority of restart of VM (it may be disabled) and also how the virtual machine behaves if the host is isolated from the network. These parameters could possibly prevent the virtual machine to restart during failover HA.

  I hope that makes sense!

  Kind regards

  Ryan

• Need to interview for 2nd Interview Question round

  Hello

  Can someone throw me a last interview questions docs as I 2nd round of interview tomorrow for VMware admin.

  Your HELP will change my career personally and professionally I want to enter the field of virtualization.

  THANK YOU SO MUCH IN ADVANCE...

  I hope that it is late.

  What is the difference between LUN masking and zoning?

  How does the DVS?

  The difference between NFS vs FC vs SSD?

  Introduction to vSAN?

  vMotion vs SVMOtion vs XVMOtion?

  How to you understand distribution IOPS / s across virtual machines in a host?

  Etc...

  In this way, there may be several question on different areas (network, storage, calculation)

• Last Interview Questions 2013

  Hi all

  Please give me VMware vSphere 5 latest interview questions and answers.

  Kind regards

  Kamlesh.

  According to me.

  When you talk about vSphere. It can have almost all areas: computing, network, storage, installation... etc... You need to through with the fundamentals of all of these areas.

  Just go through secure Channel 5 blueprint and prepare compared to the time you have. vSphere is large enough to learn over the years.

  Ref:http://mylearn.vmware.com/lcms/web/portals/certification/VCP_Blueprints/VCP5-DCV-VCP510-Exam-Blueprint-v3_1.pdf

  Select the themes that interest you by blue print top. Note: The Blue print is very detailed, so you must prioritize well and prepare.

  If you need an interview as an administrator, they can expect little more than a few basic principles. If its for Dev or QA, they can expect some basics from the point of view of vSphere.

  Apart from this, you must prepare your resume very well. 80% questions comes to your curriculum vitae as based on your CV, only you are pre-selected.

  Hope this will help prepare.

• Interview questions ATG for 3 + experience

  Hello

  1. What are the important issues in the ATG for 3 + experience?

  2. What are the Questions they ask in the trade

  a. account management Module

  b. ShoppingCart Module

  Thank you

  Sudharsan.s

  Normally the Interview will begin with ATG Basics

  Formhandler, drop, Servlet, referential Pipeline, how to create the new repository, a relationship a-a, a - many, many. types of cache and cache modes.

  Then,

  If you have worked on the customization:

  Scenario, slot, targeting. Diff b/w and targetter scenario.

  If you have worked on trade:

  How to extend OOTB repositories, methods used on different pages: shopping cart page, the page of payment. IE, how to add article to the shopping cart, how to show the payment page, etc..

  How to create the trade pipeline string, link.

  How ATG pricing works.

  Read more:

  ATG Programming Guide (until the chapter of Servlet of Pipelines)

  Repository guide ATG (until the chapter of the Cache)

  ATG Commerce Programming Guide (till Pipeline Chains Chapter)

  There are a few messages on yahoo or in some blogs. Just ATG google interview questions.

  As experience grows, people will wait to know not only the names of methods, but how internally works ATG.

  Kind regards

  Nitin.

• Technical interview question

  Hi all

  I need help. I have an interview in two days on the Pl/Sql developer, but I don't know about the technical question ask in an interview.

  If anyone has a technical interview question.

  Post your experienced question during an interview.

  Please answer.

  Thankx in advance.

  Post edited by: 66ae2845-affa-42cb-ba22-847accd179f1

  66ae2845-AFFA-42CB-BA22-847accd179f1 wrote:

  Hi I have knowledge but I don't know what kind of questions to ask in.

  This is the point of an interview, to test what knowledge you have, not what responses you tried to learn in advance.

  There is no interest to get you a job based on the responses, you learned that if you don't have the knowledge and the understanding that you will end up by given the work you do not know how.

  Go to the interview and answer all questions honestly you will be asked.

  It is better to say you don't know the answer, but demonstrate that you have an idea where you'd look to know, than to pretend, you know the answer when you have not, in which case you will be often caught in any case that the interviewer can dig to find out how well you understand the answer you gave (as an interviewer, it's what I would do).

• VMware and answer interview questions

  VMware and answer interview questions

  I think that he referred interview VMware software-related issues, but he fails to mention the subjects he wants to have answers

• G 10 Oracle interview questions

  Hello
  
  Please post the link for oracle 10g interview questions. IAM a developer (starter). Please help me.
  
  Thank you and best regards,
  Anill
  
  Published by: Anill February 10, 2012 23:46

  This should be useful.

  http://www.geekinterview.com/interview-questions/Oracle/PL-SQL

• In weblogic server interview questions

  Hello
  
  Veuileez can you tell me everything time real maintenance issues to the server administration weblogic (8.1 or 9.2 and 10.3) or advice me how to details.
  
  
  Thanks in advance
  Bajaji kumar

  Hi Bajaji,

  Especially for the preparation of the interview... There is no such good site on WebLogic... but you can make reference to: http://crkthoughts.blogspot.com/2009/12/weblogic-faqs.html (RaviKiran) Blog to get an idea.

  E docs are always the best... to meet the... interview questions as well as for orders in real time...

  .
  .
  Thank you
  Jay SenSharma
  http://WebLogic-wonders.com/WebLogic (WebLogic wonders are here)

• Required Portal WebLogic interview questions

  Hi all
  
  Required Portal WebLogic interview questions
  
  Thank you
  Surya

  Hi Surya,

  For the interview questions and answers please go through this blog http://venkataportal.blogspot.com/

  Thank you

  Published by: VenkataS on May 8, 2010 22:07

• Oracle database won't start - Interview Question? How to answer Interview in short-

  Hello people

  I am Java programmer, trying to gear to Oracle DB, attended a few Interview.

  So far in the Interview they ask this question "How do troubleshoot you if Oracle database is not running / does not start?

  Since I have no experience in real time.

  I would say that I'll go and do a TNSPING, check the Listerner.ora entries. If Windows I will tell me that I'll check Services.

  but so far, it seems that they are not happy with my answer.

  So I ask each of you to tell me how I should answer.

  I know it's the open question but how should I tell them in a nuttshell.

  Thank you

  Matt

  I am Java programmer, trying to gear to Oracle DB, attended a few Interview.

  So far in the Interview they ask this question "How do troubleshoot you if Oracle database is not running / does not start?

  Since I have no experience in real time.

  I would say that I'll go and do a TNSPING, check the Listerner.ora entries. If Windows I will tell me that I'll check Services.

  but so far, it seems that they are not happy with my answer.

  So I ask each of you to tell me how I should answer.

  I know it's the open question but how should I tell them in a nuttshell.

  Well - until now I disagree with ALL of the other answers!

  IMHO the FIRST STEP in ANY troubleshooting task is to CONFIRM that the problem really exists.

  The KEY part of this confirmation is to get ALL the information available to the person reporting the issue. In an interview which is SIMPLE - the person reporting the issue is sitting right in front of you. So instead of running around like a chicken with its head cut off you should begin by asking a few key questions:

  1. you said that the data is not running

  a. IS IT supposed TO BE running - that would be my VERY FIRST question!

  b. How do you know this? A user did report it to you? Have you tried to use yourself?

  c. How do confirm you the DB was down? Have what measures you taken?

  d. What do you mean by DOWN? Stone cold dead? Running but not accessible to business users? Running but inaccessible to anyone including DBA?

  e. what other information you have about the problem? Have you checked the log of alerts? When was the last time it was running normally? What could have happened since then to bring it down? There were backups or scheduled maintenance tasks?

  2. you said that it does not start

  a. How do you know this?

  b. did you try to start it yourself?

  c. how the restart was attempted? how much? where (what machine)?

  d. what command they use? They use 'EM? Or a console?

  (e) what has been the result? What has been the response on the console (if the console has been used) what has been the result if EM has been used?

  Your answer to that seemingly simple question should have been to about a dozen questions of your own like I did just above. There is NOTHING to do, IMHO, before getting THE news AND ALL of the one who reports the problem - that includes interviewers.

  Disappoint my more great in interviews is when otherwise intelligent people are so reluctant to ask questions to get the information they need to understand and confirm the question/problem.

  The above is why I "disagreed" with the other responses made so far. Certainly, the alerts log is important and must be checked. But it's a lot easier knowing what the person concerned (interviewer) know asking them just before starting to run. As far as we know that the interviewer was ready to tell you what the alert log say if you just ask.

  My rule #1 in an interview: ASK QUESTIONS!

  Anyone who is not asking questions in my interviews gets demerits. I can train someone how to solve problems and perform DBA tasks. But I found it almost IMPOSSIBLE to tell when they don't know something if they don't ask questions or tell me "I don't know".

  If someone just asking these questions above this would indicate to me that they know how to FIND the information they need, even if they don't know yet how to use this information.

• difficult interview question

  Hello world

  I have a question that was asked in an interview, and I didn't know how to respond.  Here's the question:

  < pre >

  assuming today ' today the users run query in oracle and everything is running fast.  the user's home and the next day they ran same or similar request and the queires take time to run.

  What can be the problem?

  < / pre >

  I tried to respond to data volume can be change, his stats are out-of-date, variation on one of the parameters in the init file and so on.  the interviewer told me that nothing has changed at all.

  the database is the same since yesterday and nobody don't touch.  He then followed

  < pre >

  Assume that all members of society went to vacation and before they log off all their requests turned quickly. When they log off, noone touch the database.  When they came back and relaunched queries.

  they were running slow.  What could be the problem?

  < / pre >

  I could not answer.  everyone wants to give ideas on that?

  the interviewer told me that nothing has changed at all.

  the database is the same since yesterday and nobody don't touch.  He then followed

  Sorry - but in today's world, it's just NOT possible that "nothing has changed at all".

  Something has changed, or queries may run the same as before.

  You must determine what has changed and HOW it has changed. The possibilities that you have listed are appropriate.

  Oracle is ALWAYS doing something, and most systems have jobs that automatically generate stats from one day to the next. As others have suggested even a SELECT query will change things:

  1 delay block drain plug may occur generating changes and UNDO/REDO

  2. the buffer cache can rinse at least partially when the new blocks are brought

  3 If ANY user running DML (insertions, changes, deletions) then all sorts of things are going to change both in memory and on the same whether disc DML is NEVER committed.

  The FIRST thing I wonder so ANY statement made by a PERSON who "nothing at all".

  Unless the interviewer is coming with more information on what the system was doing really, how it was configured, what types of statements users were execution, etc. that I held by original suggestions.

• Application of self-join interview question?

  Hi guys!

  I asked this question in an interview for the job as a developer of database.

  I received a select based on symbol table and asked to drow the printout and then explain works step by step this statement.

  Here are the instructions create & insert

  /**********************************************/

  create table tbl (number x, y varchar2 (50));

  INSERT INTO tbl (x, y) VALUES ('A', 0);

  INSERT INTO tbl (x, y) VALUES (1, 'B');

  COMMIT;

  /***********************************************/

  Below the query (select statement)

  SELECT tbl1.x

  OF tbl tbl1 tbl2 tbl

  WHERE tbl1.x = 0 OR tbl2.x = 1;

  Please explain me the output and work step by step this statement...

  Thank you...

  Hello usman_noshahi,

  If you omit the where the query clause will result as below

  SELECT tbl1.x, tbl2.x

  OF tbl tbl1 tbl2 tbl

  /

  X          X

  ----- ----------

  0          0

  0          1

  1          0

  1          1

  Request granted will result as below based on where condition on each line on top 4 rows...  Or Condition will be returs real if one condition is met with the data set.

  SQL > SELECT tbl1.x, tbl2.x

  2 tbl tbl1 tbl2 tbl

  3. WHERE tbl1.x = 0 tbl2.x = 1 GOLD

  4.

  X          X

  ---------- ----------

  0          0

  0          1

  1          1

  SQL >

  You can get the information in a different way as below...

  SQL > explain plan set statement_id = "ORACLEFORUMS" for

  2. SELECT tbl1.x

  3 tbl tbl1 tbl2 tbl

  4 WHERE tbl1.x = 0 OR tbl2.x = 1;

  He explained.

  SQL > select LPad (' ', 2 *(Level-1)). Level | '.' || NVL (position 0). ' ' ||

  Operation 2. ' ' || Options of | ' ' || Object_name | ' ' || Object_type

  3   || ' ' || Decode (id, 0, Statement_Id |) "Cost = ' | Position) | cost

  4   || ' ' || Object_Node "Query Plan.

  plan_table 5

  6 start with id = 0 and statement_id = 'ORACLEFORUMS. '

  7. connect by prior id = parent_id

  8 and statement_id = 'ORAFAQ.

  9   /

  Query plan

  --------------------------------------------------

  1.7 STATEMENT SELECT ORACLEFORUMS cost = 77

  2.1 NESTED LOOPS 7

  3.1 ACCESS FULL TBL TABLE 3 TABLE

  3.2 TABLE ACCESS FULL TBL TABLE 2

  SQL > SELECT *.

  TABLE 2 (DBMS_XPLAN. DISPLAY ('PLAN_TABLE', 'ORACLEFORUMS', 'BASIC'));

  PLAN_TABLE_OUTPUT

  ------------------

  Hash value of plan: 1718268327

  -----------------------------------

  | ID | Operation | Name |

  -----------------------------------

  |   0 | SELECT STATEMENT |      |

  |   1.  NESTED LOOPS |      |

  |   2.   TABLE ACCESS FULL | TBL |

  |   5:   TABLE ACCESS FULL | TBL |

  -----------------------------------

  10 selected lines.

  SQL >

  SQL > select LPAD (' ', 2 *(LEVEL-1)). operation 'OPERATION', 'options ',.

  2 DECODE (TO_CHAR (id), '0',' COST = ' |) NVL (to_char (position), n / 'a').

  3 object_name) 'OBJECTNAME', id | » -'|| NVL (parent_id, 0) | » -'||

  4 NVL (position 0), 'ORDER', SUBSTR (optimizer, 1, 6) 'OPT '.

  plan_table 5

  6. start with id = 0

  7 and statement_id = 'ORACLEFORUMS. '

  8 connect by prior id = parent_id

  9 and statement_id = 'ORACLEFORUMS. '

  10.

  OPTIO OBJECTNAME OPT OPERATION ORDER

  ------------------------- ----- ----------------------------------------------- ---------- ---------------

  COST OF THE SELECT = 7 0-0-7 ALL_RO

  NESTED LOOPS                                                                  1-0-1

  TABLE ACCESS FULL TBL 2-1-1

  TABLE 3-1-2 TBL FULL ACCESS

  SQL >

  ID ID-PARENT as follows...

  00

  10

  21

  31

  Here level 1 has 2 childs (2,3)

  Thus the sequential order of enforcement will be 2,3,1.

  For more reference I recommend you read below, of course it's Oracle V8 but it gives more information.

  Good reading!

  Optimization of joins