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Thursday 10 December 2015

Control-M Interview questionnaire


I do not guarantee it but if you know the answer of below questions then there are high percentage of chances that you can get through with the interview:

General Questions:


  1. What is the Control-M Version you have worked on?
    -->
    Please answer this question carefully. Interviewer may not be interested in knowing that how many different versions of Control-M you have worked on rather he is asking this because he will be asking next questions mostly on that version.
    Don’t try to be smart here by telling that you have worked on latest version if you have not worked. You may say that “Primarily you have worked on Version 7” but you know the new features which are available in Version 8.
  2. What is the latest version and fix pack of the Control-M?
    -->
    Interviewer wants to know how well aware you are of upcoming versions. This question will also let interviewer know that you are really working on Control-M recently or not. Because if you have not been working on this tool then there are chances that you may not be able to answer this spontaneously. Also don’t expect this question to be the first question, it can be asked anytime between the interview.
  3. What is the new features available in the Control-M new version?
    -->

    Just let the interviewer know about some of the latest features which have been introduced. Also don’t talk about the latest features which you are not really comfortable explaining in. Some of the features in version 9 are:
    ØHigh Availability
    ØAutomated Agent Deployment
    ØAutomated Client Deployment
    ØPromotion between environments
    ØUsage alerts
    ØSecurity enhancements
  4. What is the difference between Control-M older version and the newer version (e.g. Difference between Control-M Version 7 and Control-M Version 8 and Control-M Version 9)?

    --> Well there is not much difference rather you can say some addition has been done in version 9. Also you can explain about the new features available in version 9 which were not there in version 8. However in terms of look and feel there is not much difference between version 8 and version 9. Both are pretty much same.
    There was significant visual difference between Version 7 and Version 8 though.
  5. Do you work on the administration or on the scheduling?

    --> Interviewer is asking this to know how suitable you are with the job profile they have opening for. If the job is for administrator then you shouldn’t say you are primarily a scheduler and have some knowledge of administration as well saying this will only reduce your chances of getting through with the interview.
    However if you are a scheduler who have only 10 to 20 percent knowledge when it comes to administration then it is better to be honest about it. Interviewer will anyways come to know once he starts asking questions related to administration stuffs.
  6. What is the architecture of the Control-M?

    -->
    These types of questions are asked to understand about how much architectural knowledge you have. Better to go through Control-M architecture and try to understand how different components of control-m interact with each other. You may refer to Control-M architecture videos available on Youtube.
    Some of the components of Control-M are:
    Control-M Server
    Control-M Enterprise Management
    Control-M Agent
    Control-M Control Modules for different components namely SAP BO, Informatica
    Control-M Client
    Control-M Add-on
  7. How do different components of the Control-M communicate to each other?


    -->
    These types of questions are asked to understand about how much architectural knowledge you have. Better to go through Control-M architecture and try to understand how different components of control-m interact with each other. You may refer to Control-M architecture videos available on Youtube.
    Some of the components of Control-M are:
    Control-M Server
    Control-M Enterprise Management
    Control-M Agent
    Control-M Control Modules for different components namely SAP BO, Informatica
    Control-M Client
    Control-M Add-on


Installation Related Questions:


  1. On which operating system platform you have installed Control-M?
    -->
    Again collect information about this question. Mostly Control-M administrators are preferred if they have experience of Control-M installation and administration on Unix/Linux platform.
    Remember, Control-M installation with Oracle database is only supported if you are installing Control-M on non windows operating system environment.
  2. What version of the Control-M have you installed?
    -->


  3. What is the prerequisite for installing Control-M?
    -->
    Be aware of the system prerequisites.
    Be aware of the software which should be installed prior to installing Control-M.
    Be aware of the access you require in order to install Control-M.
    On Unix environment users should be created and installation will take place only using those users. So be aware of those things.
    You can refer to Control-M installation guide for more information on this:
  4. What all different types of databases supported by Control-M?
    --> Oracle, MSSQL,Postgres,Sybase



  5. What is the prerequisite for installing Control-M?
    -->

    Be aware of the system prerequisites.
    Be aware of the software which should be installed prior to installing Control-M.
    Be aware of the access you require in order to install Control-M.
    On Unix environment users should be created and installation will take place only using those users. So be aware of those things.
    You can refer to Control-M installation guide for more information on this:


  6. Can multiple instances of Control-M server be installed on a machine?

    -->

    I have been asked such questions. Not sure what interviewer is trying to understand from this? Maybe he wants to know if you have done weird things or not in your lab environment :D
    On Windows it is not possible and on Unix system you may install multiple instances of Control-M server on a single machine. Ports to communicate should be different in both the instances though so that you can differentiate between both the instances.
  7. Can multiple instances of Control-M EM be installed to handle one Control-M server?
  8. Can there be multiple gateways connected to a Control-M server?
    --> Yes
  9. Is oracle database supported for Control-M installation?
    --> Supported only if you are installing Control-M in non windows OS environment. It is not supported if you are installing on Windows OS. 

  10. What are the different types of high availability installation have you performed?
    --> Cluster Installation, DC DR Setup

  11.  What is DC-DR high availability?

    In DC DR high availability you Control-M installed on two different servers. Data of primary Control-M server keeps synchronizing with the database of secondary Control-M server (DR).
     
  12. What is cluster installation?
    In cluster environment there are usually more than two servers joined together to form a single machine logically. They all will be pointing to a shared storage device. Control-M installation takes place on that shared storage by logging. So when one of the Server goes down Control-M still keeps running on the other alternative available server.
  13. Is Control-M Cluster aware or cluster non aware tool?
    --> Cluster aware tool. When you try to install Control-M on shared mount point (file system) it understands that you are trying to do cluster high availability installation.

  14. How do you do a DC-DR setup?
    In DC-DR setup Control-M is installed on both Primary and Secondary server. Control-M Services on secondary server will always remain stopped. Only the database services will be in started mode on secondary server. 
    Then there is mirroring enabled between primary Control-M server database to Secondary server database. This keeps on synchronizing Control-M Primary and Secondary Database. 
    In the event of Primary server being down or crashed we may manually move Control-M services to work on Secondary server.
  15. What is the prerequisite for installing Control-M on cluster?
  16. Does Control-M Support load balancer?
  17. Can two instances of Control-M agent be installed on a machine?
  18. Can a lower version and an upper version of Control-M can be installed on a single server? (e.g. Can Control-M version 7 agent and Control-M Version 8 Agent be installed on a same machine?)
  19. Can a Control-M agent authorized to perform the requests from multiple Control-M Server?
  20. What is the port for Control-M Agent and Control-M Server communication?
  21. Can Control-M agent and server communicate using one port?
  22. What is persistent connection?


LDAP Integration:


  1. Does Control-M Support LDAP Integration?
  2. Which option do we use to do LDAP Integration?
  3. Post integration how Control-M users are authenticated?
  4. If LDAP Is down can users be authenticated through Control-M?
  5. If you have same user created in Control-M as well as in LDAP then how the authentication will work? Will rules applied to Control-M will be applicable or rules applied to LDAP Will be applicable?


Troubleshooting and Logs:
  1. What are the various logs get created in Control-M Server/EM and Agent?
  2. How do we check if any service stops working?
  3. What all various types of Control-M Processes available?
  4. In which directory logs get generated when a few or all process/services fail?


More questions will be coming soon... Do let me know what questions you have faced in the interviews in the comment section. Thank you.

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8 comments:

  1. Would be good if you could add questions on scheduling and monitoring. All other questions too - with answers please - would be helpful.

    ReplyDelete
  2. Thank you for the questions Vikas. Very helpful!!

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  3. Hi Please add the answers of above questions. Would be grateful to you!!!!!!!!!!!!!!

    ReplyDelete
    Replies
    1. Complete questions and answeres are available here.
      https://www.itpanther.com/control-m-interview-questions-and-answers-2/

      Delete
  4. Thank you very much for the information Vikas :-)

    ReplyDelete
  5. Thank bro. Can you provide answers for questions from 15th till end. Also post some more Q&A please.

    ReplyDelete
  6. Hi Guys, I have updated this post on my new website. Please see this link https://www.itpanther.com/control-m-interview-questions-and-answers-2/

    ReplyDelete