GIS Interview Questions

There were so many requests from the friends and folks asking me to write about some of interview questions for GIS Jobs. I always say that there is no such thing called specific questions asked in all the GIS job interviews, it all depend upon your resume and projects which you worked upon. If you work with .NET or Java, underlying principles are same. Everything is class and objects under the sun. I’m not going to give you a guarantee that these question may appear in your interview rather give you some basics that you must aware of if you work with ESRI products. Here, my aim is educate buddy developers to aware of these questions as well as answers :), not for sake of interview but as a GIS developer by profession. There is no specific order in the questions below.

This post only provides you a question, perhaps reader should come up with the answer, if you don’t know the answer, ping me in comment section.

  1. Define ArcObjects -  click here for answer
  2. What are applications of ArcGIS Desktop – Ans: ArcMap, ArcCatalog and ArcToolbox
  3. A __________ class represents objects that can be created directly.
  4. A __________ class cannot be used to create new objects, but it is a specification for sub classes
  5. A __________ can’t directly create new objects, but objects of a class can be created as a property of another class or by functions from another class.
  6. What is the basic difference between a command and a tool? – A MUST question
  7. Name the object that is first created when ArcMap starts running
  8. An instance of ArcCatalog has _____ number of templates associated with it by default.
  9. How many instances of an extension can exist per running application
  10. The _________ interface is implemented in order to create a configurable extension allowing users to toggle its enabled state.
  11. Which of the following the default renderer object when a new feature class is loaded?
  12. Which is the interface to which a renderer object can be assigned directly?
  13. Name the interface that can be used to do editing in ArcObjects
  14. Name the interface that can be used to create a new feature?
  15. Define Domain. What are different types of domain
  16. Which is the interface that is used to find a specific version provided its name as string
  17. ___________ merges the current edit version with the target version
  18. What is different between direct connection and through SDE connection?
  19. Define versioning and list its main events
  20. How will release com objects.
  21. If you want to update ‘n’ number of features in featureclass which interface will you use (performance wise)
  22. What is Callback in ArcGIS Server?
  23. Explain security model employed in ArcGIS Server . Whats new in 9.3?
  24. What is projection ?
  25. What are different projection systems and what is difference between projected coordinated system and geographic coordinate system
  26. What is a scale.?
  27. What is geocoding?
  28. What is reverse geocoding?
  29. What is geo-referencing?
  30. What is geo-processing?
  31. What is ArcSDE. What is database which you used?.
  32. If two persons updating the particular row of the table in database?. How does the system work?.
  33. How do you load data into SDE?
  34. How will create a SDE view?
  35. What is an interface to implemented for callback ?
  36. What is difference between queryfilter and querydef?, when to use ?
  37. Difference between IFeatureLayer and Layer
  38. What is generic class used to hold a set of properties for database connection?
  39. Whether every controls in Web ADF has a property “CallBackresults”?
  40. Give few command line ArcSDE commands?
  41. Difference beteween personal geodatabase and enterprise geodatabase
  42. What is ASP.NET AJax model used in ArcGIS Server 9.3 and 9.3
  43. What is BLOB?
  44. What is difference between Overriding and overloading
  45. Difference between abstract class and interface
  46. What is GPS ?
  47. ….many more…

EDIT: Here is nice post from Brain

UPDATE [ JULY , 2009] :  Readers are requested to find answers for the above questions. Please do not write me email/comments to send answers to all questions.

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147 Responses to “GIS Interview Questions”

  1. pierre_k Says:

    These are not questions for a GIS developer, but for an ArcObjects developer which indeed is not the same. Even when you’re looking strictly for AO developer, these questions seem very bad – they’re not saying anything about the person and his/her qualities. What is the point of remembering names of event interfaces pertaining to versioning? Are you a bad programmer if you need to look it up in the docs?

  2. iamlaksh1 Says:

    I appreciate your comments; rather, if you have look at the objective of my blog is to help fellow buddy developers who primarily work with ESRI products. My target audience is one who has lesser experience in GIS development and interested with GIS a technology. I’m sure these questions will be much helpful for them. There is nothing like good/bad question; knowing interface is very important for matter of any developer irrespective of the product used. For ex: ISetDefaultConnectionInfo Interface is rarely used interface which provides access to default connection information for a remote database (ArcSDE). If you develop framework based application this will be very handy. As I mentioned in post these are just teasers, questions which may not be asked in an interview but knowing them helps in day to day activities. Always look at glass is half full rather half empty.

    Meanwhile I enjoyed your coffee art in your site. Cheers!.

  3. Raichand Says:

    Dear Sir,
    Could you please send me the answer?As I am desperately looking for a job.I am attending the interviews.

    Thanks

    Raichand

  4. iamlaksh1 Says:

    Hi Rai:
    Let me for which are all the questions you need answer. Best of luck for your job search!

  5. Nivas Says:

    Nice work!
    Could you please send the answers for all the questions?

    Thanks in advance..
    Nivas

  6. iamlaksh1 Says:

    Let me know which are all questions you need answers

  7. Pranesh Kumar Verma Says:

    Dear Sir,
    This Questrions are very good and thanks alot to post it.

    Could you please send me the answer?As I am desperately looking for a job in field of GIS & RS.I am attending the interviews.

    Thanks

  8. iamlaksh1 Says:

    Let me know for which questions you need answer?

  9. vasu Says:

    Dear Sir,
    This Questrions are very good and thanks alot to post it.

    Could you please send me the answer?As I am desperately looking for a job in field of GIS & RS.I am attending the interviews.

    Thanks

  10. iamlaksh1 Says:

    Let me know for which questions you need an answer. Good luck for your interviews.

  11. Pranesh Kumar Verma Says:

    all the above questions including many more…………

    which is already posted here.

    thanks & still awaiting for ur early reply sir.

  12. GIS JObs Says:

    Nice article….but can you please clean up the content adn put some more answars…

  13. Lisa Says:

    Hello – These are very good but technical questions. I notice several persons asking for answers…why not just post the answers here so we can all benefit from them?

  14. iamlaksh1 Says:

    Hi
    Thanks Lisa for writing in. Yes many people asking for answers, I agree. But I want audience to search the answers for these questions rather providing them direct. As I said I have replied to many to those who have got some specific doubts. I believe these questions are not very tough to find answers. Simple search would give them answers.

  15. rosy Says:

    These questions which you have posted are excellent, but i am very new to GIS and want to learn. So can you please help me answering the question so that it may help me.

  16. Bheki Says:

    Could you please send me the answers to all the questions.

  17. G.V.SURESH BABU Says:

    Dear Sir,
    This Questrions are very good and thanks alot to post it.

    Could you please send me the answers.

    Thanks

    G.V.SURESH BABU

  18. LiLy Li Says:

    Could you please send me the answer for all those questions. I am new to GIS and desperately want to learn.

  19. Suniel Patil Says:

    I havent prepare for like this question first but when I saw this question tht time I count myself tht if this question will ask in my interview then surly i will disqualify thanks for publish most useful questions. but please could u give answer for this it will help for like me pupile who just want to enter in the field of GIS Developer. thankig you

  20. ram khilawan Says:

    what is arc catlog?Please give me sutable answer.

  21. Adams Says:

    These questions are useful.plse can you send for the answers ASAP for more revision.

  22. Yadav Says:

    Dear Sir

    I am a fresh GIS student and currently looking for a job. I find the questions very useful but for most of them I don’t know the answers. So kindly can you please send me the answers for all the questions.

    Thanking you

    Yadav

  23. reeetu Says:

    can u plz send me the ans of above questions.

  24. Mahesh Dokina Says:

    Greetings,

    These Questions are More Helpful to me.

    i found answers for some of the questions.any one send me answers for all questions.

  25. hinata Says:

    thnaks for the useful infor

  26. ushasri Says:

    please send me the answers for the above questions

  27. thabo Says:

    i find these questions helpful though i do not have answers, please help

  28. thabo Says:

    please provide with answers to the above questions.

  29. sunil yadav Says:

    sir,plz forward answers to my mail

  30. ravinder Says:

    hi, I’m ravinder. i’m looking for a job, so please send the answer of GIS 4.2 as soon as possible. It’s very urgent.
    thanks

  31. Mohammed Says:

    thanks for ur help in advance

  32. Kiran More Says:

    Dear Sir,

    I am a fresh GIS engineer and currently looking for a job. I find the questions very useful for me but for most of them I don’t know the answers. So kindly can you please send me the answers for all the questions as i am going to face an interview early next month.

  33. kumar Says:

    Dear Sir,

    I am Looking for a job on GIS fresher. Please the send answers of above questions .Please send the answers as early as posible.

  34. CityPlanner Says:

    I found some of the answers but have found a few of the questions worded in a tricky way. Could I get the answers for questions 8-23, 31-36 and 42 by tomorrow if at all possible? I have an interview in the afternoon and would like to be prepared.

  35. unni Says:

    Thanks for these questions.I dont know the answers of many questions above.I wud be happy if u send me via my email.More pleasure if u send all answers..thanks

  36. Mukund Says:

    hi,
    The questions are really good. can you send me the answers via email.

    Thanks in Advance!
    Mukund

  37. Ganesh Says:

    plz send answer for the above questions. I am looking for the job.

  38. sameer Says:

    please forward me the answers….thanks in advance

    hrithikesh3485@gmail.com

  39. shiva Says:

    Sir,
    Please send the answers to my mail.

    thanks,
    shiva

  40. sunray Says:

    Hi!!

    Could you please send the answers to my mail.

  41. Pete Says:

    Thanks for these! I am on my second technical interview with ESRI and researching the answers to these questions on my own has been a great help!

  42. Rajashree Basu Says:

    Hi,

    This questions will definately be useful for me.But please do provide me with the answers.

  43. Syed Says:

    I am attending the technical interview soon plz mail me all the answers as i dont have time to search all the above questions thanks in advance

  44. Arindam Bhattacharyya Says:

    It is very very helpful for Arcgis Development orinted Interview purpose.
    But it requires some basic knowledge about Arcgis & ArcObjects.

  45. Mahesh Kumar Says:

    I am attending the technical interview soon plz mail me all the answers as i dont have time to search all the above questions thanks in advance.

    Mahesh Kumar K

  46. Utkal Sharma Says:

    Excellent collection of questions….Utkal Sharma

  47. Srikanth Says:

    Can u get us answers..in seperate cooumn here itself..it wil be easy for us..to check and attend the interview..

  48. pradeep Says:

    hello sir,
    i am new to GIS, can you pls send me the aswers.

  49. yasod kumar Says:

    hello sir,

    The questions are really helpful to me. can you please send me the aswers sir.

    Thanks
    yasod kumar

  50. puja Says:

    i am new to GIS, can you pls send me the aswers.

  51. praneeth Says:

    Hi i am praneeth ,how i will get a job in GOOGLE GIS ?
    pls send me suitable answer as early as possible .
    ph.no:9298103325

  52. praneeth Says:

    any one pls send ans of the above questions-praneeth9298103325

  53. Tiku Says:

    new ot GIS, can u please the answers with me

  54. hatrick Says:

    Please send me answers, if possible . Thank you. If not, that is okay too.

  55. laxman Says:

    please provide answers

  56. laxman Says:

    please send answers those are very useful to us

  57. laxman Says:

    what is Enumerations plese give breif explanation

  58. Hemant Sharma Says:

    I Think You Also do’t know the answers…..!!

  59. Reiko Adner Says:

    Thanks for this information. GIS Interview Questions was a wonderful read. My sister has been wondering about this topic for a while.

  60. pranay patil Says:

    i want more knowledge about ArcGIS

  61. AS New Says:

    Could u Pls. Share Answers For The Above Question.

  62. Prizcola Says:

    hi,
    I have learnt .net and gis recently .. i got answers for some questions but i have few doubts on some questions posted above .. i can provide u the question nos for which i have not come up with an absolute answers. if can send me the answers for those questions it will b very much helpful… as i preparing myself for an interview this week….
    question nos : 7,8,13,16,18,19,20,23,24,25,26,27,29,30,31,32,33,34,35,36,38,40,41,42,47

    thank you

  63. bhupender Says:

    please send answers i need immoderately

  64. bhupender Says:

    please send me answers

  65. Haragopal Says:

    Hi Sir

    All the questions are helpful for me to face the interviews , could you please send the answers for all the questions .

    Thanks
    Haragopal

  66. Sivakumar Says:

    Hi,

    I am searching answers for the given questions and got for some questions also. Please find below the answers against each questions.
    If you find any wrong answers or got better answers please share it.

    3. Concrete Class
    4. Abstract Class
    6. Command Button is having only a single click event.
    Tool buttion is having all the mouse events and we can interact with the Arcmap.
    13. IEditor
    14. IFeatureClass
    16. Attribute domains are rules that describe the legal values of a field type, providing a method for enforcing data integrity.
    a. Range Domains
    b. Coded Domains
    17. System.Runtime.InteropServices.Marshal.ReleaseComObject
    22. I dont find an interface for this. But I find ‘Update’ method in a feature class will return a update cursor for fast feature updation.
    25. Projection is any method of representing the surface of a sphere on a plane
    26. Cylindrical, conic, Azimuthal and Miscellaneous projection systems
    Projected coordinate system is defined on a flat, two dimensional surface
    Geographic coordinates system uses a three dimensional spherical surface to define locations on the earth.
    28. Geocoding is a process of assigning geographic coordinates to a given point on a map.
    29. Reverse geocoding is the process of determining the address of a given point on a map.
    30. Geo-referencing is the process of aligning spatial data to a raster data.

  67. Sivakumar Says:

    Some more answers …

    31. Geoprocessing consists of tools that operate on the data in ArcGIS (tables, feature classes, rasters, triangulated irregular network [TINs], and so on) and perform tasks that are necessary for manipulating and analyzing geographic information across a wide range of disciplines.

    32. ArcSDE (Spatial Database Engine) is server software by ESRI that spatially enables a Relational Database Management System. The spatial data may then be used as part of a geodatabase. It supports multiple DBMSs like Oracle, SQL Server, DB2, IBM informix.

    35. Views can be created using the sdetable administration command. The syntax of sdetable –o create_view is
    sdetable –o create_view
    –T
    –t
    –c <table_col1,table_col2…table_coln
    [–a ]
    [–w ]
    [–i ]
    [–s ]
    [–D ]
    –u [–p ] [–N] [–q]

    37. QueryDef sets the parameters needed to create an attribute query. The name of the table and a string defining the where clause are required. QueryDef can only be used with Geodatabase and Personal Geodatabase data sources.

    QueryFilter filters data based on an attribute query. A string defining a where clause is required. We can use it when we need to filter data based on attribute values or the relationship between attributes.

    38. FeatureLayer is the visual presentation of the underlying data.
    Layer is the generic interface for all the layer objects in a map.

    39. PropertySet is the generic class to hold the properties of database connection.

  68. MOHAN Says:

    Please give the answers

  69. marwad Says:

    could you please send me some questions with model answer to help me with the research that i am doing about GIS interview just if you provide me the most important question to help me with assignment it will be greatful.

    thank you for your kind assistance

    Marwad

  70. Sudip Barman Says:

    Hello Sir,
    I really appreciate your effort to educate a few developers like us.
    It will be very helpful for us if you send answers. But your logic is also very good if developers find answers in web they will learn more…

    Thanks

    Sudip Barman

  71. Bikramjit Barooah Says:

    Thanks sir,
    I am very great full to you to have all these valuable questions and answers in one page. I am also searching GIS fresher jobs in Delhi, NCR region.

  72. 2010 in review « Says:

    [...] GIS Interview Questions December 2008 71 comments 3 [...]

  73. santosh Says:

    thanks for posting questions.dont waste STUDENTS time. pls provide ans also .

  74. mb.raju Says:

    i would like to post some of the answers

    3.coclass
    4.abstract class
    5. class
    6.command executed when it clicked but tool nedd to be interact with dispaly ex..zoom to window
    7.IApplication
    9.one

  75. praveen kumar Says:

    hi sir,
    this is questions are very good
    could please send answers those are very useful to us?
    please sir, those are use full to us
    please sir,

  76. praveen kumar Says:

    hi sir,
    this is questions are very good
    could please send answers those are very useful to us?
    please sir, those are use full to us
    please sir,

  77. D.Srinivas Says:

    Hi Sir

    All the questions are helpful for me to face the interviews , could you please send the answers for all the questions .

    Thanks
    Srinivas

  78. sajith Says:

    Dear Sir,

    As most of the people, I am also looking for the answers for all of the questions posted by you. I have some extend of specialisation in Geomedia, Mapinfo and Microstation. So the terminology of Arch making confusion. Would you please send me the answers.

    Thanks
    Sajith

  79. ishwar mohan karudkar Says:

    i want to know how multi decision criteria making would be done in arc gis i am not been able think so please help me

  80. phani Says:

    sir please send me answers for the above questions…..i had an interview on 25th march……please help me out

  81. Atul Salunk Says:

    Really good…Questions…
    Who ever has posted the question has done nothing good for other..And seeing people request for ans ,it seems that you all are interested in clearing the interview and geeting Job…not at all intrested in learing….

    Remember Wat Rancho said in 3 idiots…”By muging u will pass,but rest of life…..u will strugle to lern…

  82. kiran Says:

    can u send me answers.

  83. vivek kumar singh Says:

    Dear Sir

    I am a fresh GIS student and currently looking for a job. I find the questions very useful but for most of them I don’t know the answers. So kindly can you please send me the answers for all the questions.
    pls replay me on my mail id [ vksingh.gis@gmail.com ]
    Thanking you

  84. vinay Says:

    Hi sir,
    this is questions are very good.
    All the questions are helpful for me to face the interviews.
    Please give the answers.

  85. goutami ganga Says:

    Thanks sir,kindly send me the answers

  86. ANIL KUMAR Says:

    Dear Sir,
    Could you please send me the answer?As I am desperately looking for a job.I am attending the interviews

  87. anjaneyulu Says:

    please send answers to my email address

  88. karthik Says:

    Hi Sir,

    these are the nice question to attempt the interview process, Please help me out of these question. I have an interview please send the answer for above all of questions

  89. harish Says:

    sir please send me answers for the above questions…

  90. vipin Says:

    helpful please send answers

  91. D.K Siva kumar Says:

    Hello sir,
    can you please send me the answers to my email .

  92. vinod rana Says:

    please send me the answers

  93. KAMALESH Says:

    Hi Sir

    All the questions are helpful for me to face the interviews , could you please send the answers for all the questions

    thanks
    Kamalesh

  94. KAMALESH Says:

    Hi Sir

    All the questions are helpful for me to face the interviews , could you please send the answers for all the questions , please give me feedback soon.

    Thanks
    Kamalesh

  95. Balaji Says:

    thank you sir, for giving this much of Data. Is this data is sufficient for facing a interview on GIS and RS.

  96. Balaji Says:

    thank you sir, for giving this much of Data. Is this data is sufficient for facing a interview on GIS and RS. sir please tell some websites for video lectures on GIS and RS.

  97. debabrata nandi Says:

    Admission of RS&GIS , NOU University Orissa invites application for following programmes:
    M.Sc. (RS&GIS)
    Forms can be downloaded from website.
    for more detail please visit
    http://www.nou.nic.in
    Last date for application is
    14th July 2011.

  98. Shivani Says:

    I read all questions posted,but i do not know answers please send me answers for these questions.Iam going to face interviews next month.Please tell me career oppurtunities in GIS field.Waiting for your reply.
    From,
    Shivani.

  99. VenkatPrasad Says:

    Difference between Overloading and overriding
    Overloading is a concept of providing multiple behaviours to a method with the same name by passing different parameters.
    Overriding is changing the behaviour of the parent class method by reimplementing the method in the childclass.

  100. VenkatPrasad Says:

    Abstractclass: which contains method definitions and may or maynot implement the methods.members of this can have any access specifiers.
    Whereas an interfaces can contain only the method definitions in it.no implementation. and members of an interface is always public bydefault

  101. Janet Kuipers Says:

    These are ESRI product questions not GIS questions

  102. rajni singh Says:

    sir i want ans of all these ques. plz send the ans

  103. Pawan Kumar Says:

    Dear Sir,
    Could you please send me the answer? I am desperately looking for a job. I am attending the interviews.

    Thanks

    Pawan

  104. AusGIS Says:

    Can you pls post the answers as well.
    I am going for interview soon.
    Thanks

  105. Gangadhar Says:

    Please send me the answers to my E-mail address above 47 questions.

  106. Gangadhar Says:

    Please send me the answers to my E-mail address is (adabalagangadhar@yahoo.co.in) above 47 questions.

  107. Sanjit Singh Says:

    Dear Sir/Mam

    All the questions are helpful for me to face the interviews , could you please send the answers for all the questions , please give me feedback soon.

    Thanks
    Sanjit Singh

  108. anagha Says:

    hai can u send me the answers plz

  109. Waseem Akhtar Tanoli Says:

    It is nice set of Questions. Thanks

  110. Jeff Flamini Says:

    Please send answers to my email

  111. gehry Says:

    would love it if you could forward answers for ?s
    16- 23 and 38-43

    thanks

  112. venkat Says:

    All the questions are helpful for me to face the interviews , could you please send the answers for my mail all the questions , please give me feedback soon.

  113. venkat Says:

    please send me the aswers sir.

  114. venkat Says:

    Could you please send the answers any one for all the questions?
    my id: venkataswamy201@gmail.com

  115. Akaas Developer Says:

    for more GIS related questions check:

    Analysis Interview Questions and Answers

    GIS Interview Questions and Answers

    GIS Analysis Interview Questions and Answers

    GIS Date Interview Questions and Answers

    Regards,
    Akaas Developer

  116. manasa Says:

    could you please send the answers above the ques

  117. jenny Says:

    Would you please send me the answers above the question to : liangzhiyun@hotmail.com Many thanks.

  118. anugna Says:

    hiii
    i am jst gng 2 attnd interview,will u pls send me all answers to the above questions

  119. weihong Says:

    Hi,

    Can you please provide me the answers?

  120. anurag singh Says:

    hi,
    i am pursuing gis study from cdac noida and i want to know how i can get a job into the development sector of gis?

    plz give me ur kind advice.

  121. mohammed raheem Says:

    Can you please send me the answers this mail .Many thanks.

  122. Dinesh Says:

    Hello,
    Can you Provide me all answers of the questions please. I am very new in the field of GIS.
    Thank you

  123. suresh Says:

    could you please send the answers above the questions

  124. Sanjay Chavan Says:

    Hi,

    Can you please provide me the answers?

  125. LJ Says:

    These are great technical questions, and, I’ve been asked a few of them in an interview (what is Geo-referencing). Some of these questions are the basics and you should be able to explain them with an example of your specific experience.
    Also, those of you asking for the answers, you should RESEARCH them YOURSELF. What are you going to do once you are employed? you should try try try again before you ask..

  126. sufyan Says:

    Please i need the answers of the all question as i am having interview day after tomorrow my email-

  127. Maksim Says:

    Hello! great questions! Anyone you could email me the answers?

  128. m kumar Says:

    i have a interview next week.could u plz send me the ans to the questions coz i find them really helpful .my emailid is
    thanku in advance

  129. DauR Says:

    Better to post answers to the related questions..

  130. Kazi Says:

    would you be able to send me the answers from Q.3 – Q. 43. This would be highly appreciated. Thanks in advance.
    My email: geoiid@gmail.com

  131. Chandreyee Mukherjee Says:

    Respected Sir ,i pursuing GiS & Remote Sensing From Jadavpur University ,, this questions are very helpful not only for interviews but also in xams ,,can u tell me whats the future prospect in this field,,
    thanks & waiting for ur reply..

  132. Ramesh Reddy. R Says:

    Dear Sir,
    This Questrions are very good and thanks alot to post it.

    Could you please send me the answers? As I am looking for a job in field of GIS ..

    Thanks

  133. santhosh Says:

    hello sir your questions is very helpful questions
    but i need answers plese send me

    Thank

  134. Mento Says:

    Thx for the question…

  135. Aashish Nautiyal Says:

    Please send ans of these question ASAP

  136. lavanya Says:

    hello sir…im fresher ..could u pls help me how to attend the gis interview

  137. swetha Says:

    Dear Sir,
    This Questrions are very good and thanks alot to post it.

    Could you please send me the answer?As I am desperately looking for a job in field of GIS & RS.I am attending the interviews.

    Thanks

  138. Wei Chen Says:

    Great questions. Please send me the answers.

  139. MUCOOL Says:

    Hello,
    Can you Provide me answers of the questions (Develop GIS model for dam fill side using following condition: A. 2 Km far from settlement. B. 5 Km from urban area C. Lies within barren land cover) please. I am very new in the field of GIS.
    Thank you
    My email: mucool11@yahoo.com

  140. Soumyak Panda Says:

    need answer for this Question

  141. senthil prabu Says:

    am also attending interviews.questions are very use full but,answers
    searching … pls send me answers

  142. surendra Says:

    pleas all answer send to my email id

  143. Praveena Says:

    Please send me the answers.

  144. surya prakash Says:

    plz send the answer

  145. SL Says:

    Hi there. I was wondering if you were still sending out the answers for these awesome questions? If so, is there a possibility that I may be able to review those answers? :) Thank you in advance if it’s still possible!

  146. akshay Says:

    send me answers

  147. DEEPAK Says:

    sir please send answer to all these important question,s……
    deepak

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