2024 Databricks certified associate developer for apache spark 3.0 python

Options. 04-16-2023 08:55 PM. Databricks Certified Associate Developer for Apache Spark 3.0 - Python. 0 Kudos. Share. Reply. All forum topics. Previous Topic. Next Topic.. 18 girlx

Certificate not received for Databricks Certified Associate Developer for Apache Spark 3.0. in missing-QuestionPost 06-12-2023; Inquiry Regarding Databricks AI Summit 2023: Request for Information in DELETE 06-01-2023; Information regarding Coupons in DELETE 05-31-2023All required concepts for in depth understanding of Apache Spark; Apache® Spark is one of the fastest growing technologies in BigData computing world. It supports multiple programming languages like Java, Scala, Python and R. Hence, many existing and new framework started to integrate Spark platform as well in their platform for instance ...The Spark Developer Associate Exam contains 60 MCQs, with a passing mark at 70% (48/60 correct answers to pass). The exam will test on: Spark Architecture (~30%): how spark application works under ...Nov 14, 2022 · How To Prepare For Databricks Certified Associate Developer for Apache Spark 3.0 1- You can start by following Kishan Yadav and Mitchell van Rijkom on LinkedIn who post awesome content about Spark ... At the time of writing, Databricks is the hottest platform to host Apache Spark applications. So, I chose to take the one that they offer: Databricks Certified Associate Developer for Apache Spark ...Experience: During my internship at Analytics Vidhya, I honed my skills in Spark and AWS, contributing to various projects, developing AWS-based architectures for data storage. Certifications: I am a Databricks Certified Associate Developer for Apache Spark 3.0 in Python, showcasing my expertise in Spark.Databricks Cer tiﬁed Associate Developer for Apache Spark 3.0 - Scala Over view This is a practice exam for the Databricks Cer tiﬁed Associate Developer for Apache Spark 3.0 - Scala exam. The questions here are retired questions from the actual exam that are representative of the questions one will receive while taking the actual exam.Azure-Databricks-Certified-Associate-Platform-Administrator: Azure Databricks Certified Associate Platform Administrator: View Details: Databricks-Certified-Associate-Developer-for-Apache-Spark-2.4: Databricks Certified Associate Developer for Apache Spark 2.4: View Details: Databricks-Certified-Associate-ML-Practitioner-for-Apache-Spark-2.4 The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ... May 31, 2021 · Training — Databricks Certified Developer for Spark 3.0 Practice Exams → this is a well-rated Udemy course with a comprehensive set of questions for the certification exam that you can ... Check out the course: https://bit.ly/3L9MHIRLearn Apache Spark 3 and pass the Databricks Certified Associate Developer for Apache Spark 3.0You will learn the...Jan 5, 2022 · After recently diving in to (and passing!) the Associate Developer for Apache Spark 3.0 exam certification from Databricks, I thought it would be useful to go over some quick points to remember and some potential 'gotcha' topics for anyone considering the challenge. The majority of the exam (72% in fact) features the use of the… The Databricks Certified Associate Developer for Apache Spark 3.0 certification is awarded by Databricks academy. The Databricks Certified Associate Developer for Apache Spark 3.0 certification exam evaluates the essential understanding of the Spark architecture and therefore the ability to use the Spark DataFrame API to complete individual data manipulation tasks.Jan 25, 2023 · Certificate not received for Databricks Certified Associate Developer for Apache Spark 3.0. in missing-QuestionPost 06-12-2023; Inquiry Regarding Databricks AI Summit 2023: Request for Information in DELETE 06-01-2023; Information regarding Coupons in DELETE 05-31-2023 May 28, 2023 · Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 2 weeks ago; Azure - Databricks - account storage gen 2 in Machine Learning 06-13-2023; Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund in Data Engineering 05-28-2023; Databricks Certification Exam Got Suspended. I have to admit, that although I can get Spark to do what I want, Spark internals (shuffling, RDDs, etc.) are not something I have to consider and are a little mysterious to me. I guess that I had the exact same profile as you before considering getting certified. What I first did is to look at 7 Steps for a Developer to Learn Apache Spark. These practice exams will help you assess and ensure that you are fully prepared for the final examination. Although this test was designed for Spark 3.0 you can use it to test your knowledge of Spark 2.3. You have around 5 questions in each test for new functions that are introduced with Spark 3.0. I am preparing for Databricks Certified Associate Developer for Apache Spark 3.0 Please find list of tickets created on URL provided and contacted nearly a month multiple times on databricks contact us form which does not acknowledge with a ticket number. Unique TicketId: [ ref:_00D61JGc4._5008Y21ONxm:ref ]Overview. This is a practice exam for the Databricks Certified Associate Developer for Apache Spark 3.0 -. Python exam. The questions here are retired questions from the actual exam that are representative of the questions one will receive while taking the actual exam. Aug 21, 2023 · Three free demos available. Here are parts of Associate-Developer-Apache-Spark free download study material for your reference. For example, the PDF version is a great choice for those who want to print the Associate-Developer-Apache-Spark exam out, it's a convenient way to read and take notes. Hi @Abhishek Pradhan , The Apache Spark Associate Developer is applied for Data Engineer and Data Scientist learning paths. This exam will assess you in Spark architecture and in the use of Spark DataFram API to manipulate data. What is covered by the exam? 📋. Although the exam covers data manipulation, the SQL language is not assessed.Options. 04-16-2023 08:55 PM. Databricks Certified Associate Developer for Apache Spark 3.0 - Python. 0 Kudos. Share. Reply. All forum topics. Previous Topic. Next Topic. Introduction The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark architecture, the Spark DataFrame API and the ability to apply ...Jan 25, 2023 · Certificate not received for Databricks Certified Associate Developer for Apache Spark 3.0. in missing-QuestionPost 06-12-2023; Inquiry Regarding Databricks AI Summit 2023: Request for Information in DELETE 06-01-2023; Information regarding Coupons in DELETE 05-31-2023 I have to admit, that although I can get Spark to do what I want, Spark internals (shuffling, RDDs, etc.) are not something I have to consider and are a little mysterious to me. I guess that I had the exact same profile as you before considering getting certified. What I first did is to look at 7 Steps for a Developer to Learn Apache Spark.The Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 pdf dumps are very supportive for me to pass my Databricks Certified Associate Developer for Apache Spark 3.0 certification exam and I obtained Apache Spark Associate Developer certification successfully.Options. 04-16-2023 08:55 PM. Databricks Certified Associate Developer for Apache Spark 3.0 - Python. 0 Kudos. Share. Reply. All forum topics. Previous Topic. Next Topic.Jun 17, 2021 · I’ve recently cleared the exam for the “Databricks Certified Associate Developer for Apache Spark 3.0” certification. In return to the community, I’ve decided to write this post sharing my own study… a.5 supervise flag to spark-submit. In standalone cluster mode supports restarting your application automatically if it exited with non-zero exit code.I am preparing for Databricks Certified Associate Developer for Apache Spark 3.0 Please find list of tickets created on URL provided and contacted nearly a month multiple times on databricks contact us form which does not acknowledge with a ticket number. Unique TicketId: [ ref:_00D61JGc4._5008Y21ONxm:ref ]Associate Developer for Apache Spark 3.0 - Python Associate Developer for Apache Spark 3.0 - Scala - What is the regular price for Databricks certification exams?Databricks Inc. 160 Spear Street, 13th Floor San Francisco, CA 94105 1-866-330-0121Hi @Abhishek Pradhan , The Apache Spark Associate Developer is applied for Data Engineer and Data Scientist learning paths. This exam will assess you in Spark architecture and in the use of Spark DataFram API to manipulate data. What is covered by the exam? 📋. Although the exam covers data manipulation, the SQL language is not assessed.- Databricks certified associate developer for apache spark 3.0 in Python Just got certified! I am a new data analyst who wants to hopefully move into the data engineering field.The following practice tests are tailored for those who wish to prepare for the Databricks Certified Associate Developer for Apache Spark 3.0 with Python exam. I recently got certified and decided to recreate a similar exam as I know how challenging it was to find any good practice materials on the internet. Notice: The following tests are not ...The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ... Jun 30, 2023 · Download the accurate Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 pdf questions from CertsExpert. The Databricks Certified Associate Developer for Apache Spark 3.0 exam dumps are verified by highly qualified Databricks experts. Aug 5, 2020 · Databricks Certified Associate Developer for Apache Spark 3.0/2.4 Spark 3.0 certification is newly released by Databricks in June 2020. This consists of 60 questions that are framed mostly around ... The questions cover all of the exam themes, including Python and Scala and Apache Spark 3.0 specifics. Most questions include detailed explanations, allowing you to learn from your mistakes. These Databricks Developer practice exams come with valuable exam tips & tricks and code snippets that you can execute for free on the Databricks Community ... a.5 supervise flag to spark-submit. In standalone cluster mode supports restarting your application automatically if it exited with non-zero exit code.May 28, 2023 · Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 08-02-2023; Azure - Databricks - account storage gen 2 in Machine Learning 06-13-2023; Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund in Data Engineering 05-28-2023 Jun 30, 2023 · Download the accurate Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 pdf questions from CertsExpert. The Databricks Certified Associate Developer for Apache Spark 3.0 exam dumps are verified by highly qualified Databricks experts. Oct 26, 2022 · I am preparing for Databricks Certified Associate Developer for Apache Spark 3.0 Please find list of tickets created on URL provided and contacted nearly a month multiple times on databricks contact us form which does not acknowledge with a ticket number. Unique TicketId: [ ref:_00D61JGc4._5008Y21ONxm:ref ] Jun 5, 2021 · The Spark Developer Associate Exam contains 60 MCQs, with a passing mark at 70% (48/60 correct answers to pass). The exam will test on: Spark Architecture (~30%): how spark application works under ... Apache Spark Developer Associate. The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark DataFrame API and the ability to apply the Spark DataFrame API to complete basic data manipulation tasks within a Spark session. Learn more.Jun 23, 2023 · Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund in Data Engineering 05-28-2023; Databricks Certified Associate Developer for Apache Spark 3.0 - Python Cancellation in Data Engineering 05-28-2023; Databricks Certification Exam Got Suspended. Need help in resolving the issue in Data Engineering 05-20-2023 Bestseller 4.5 (1,832 ratings) 10,838 students What you'll learn How to prepare for the Databricks Certified Associate Developer For Apache Spark 3 Certification Exam The Architecture of an Apache Spark Application Learn how Apache Spark runs on a cluster of computer Learn the Execution Hierarchy of Apache SparkFeb 5, 2022 · Hi @Abhishek Pradhan , The Apache Spark Associate Developer is applied for Data Engineer and Data Scientist learning paths. This exam will assess you in Spark architecture and in the use of Spark DataFram API to manipulate data. What is covered by the exam? 📋. Although the exam covers data manipulation, the SQL language is not assessed. Aug 20, 2021 · Databricks Certification Exam Details. Exam cost is $200 as of now while writing this blog. There will be total 60 questions in the exam all will be multiple choice questions. Time limit for the exam is 120 minutes you have to finish your exam in this 120 minutes only. Oct 26, 2022 · I am preparing for Databricks Certified Associate Developer for Apache Spark 3.0 Please find list of tickets created on URL provided and contacted nearly a month multiple times on databricks contact us form which does not acknowledge with a ticket number. Unique TicketId: [ ref:_00D61JGc4._5008Y21ONxm:ref ] Training — Databricks Certified Developer for Spark 3.0 Practice Exams → this is a well-rated Udemy course with a comprehensive set of questions for the certification exam that you can ...Azure-Databricks-Certified-Associate-Platform-Administrator: Azure Databricks Certified Associate Platform Administrator: View Details: Databricks-Certified-Associate-Developer-for-Apache-Spark-2.4: Databricks Certified Associate Developer for Apache Spark 2.4: View Details: Databricks-Certified-Associate-ML-Practitioner-for-Apache-Spark-2.4"CRT020: Databricks Certified Associate Developer for Apache Spark 2.4 with Scala 2.11 – Assessment" is the new certification exam by Databricks which tests your spark core concepts and ...Apache Spark Developer Associate. The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark DataFrame API and the ability to apply the Spark DataFrame API to complete basic data manipulation tasks within a Spark session. Learn more.Databricks Page for Spark Developer Associate:https://www.databricks.com/learn/certification/apache-spark-developer-associateRegister for the Exam:https://ww...Jan 23, 2023 · Associate Developer for Apache Spark 3.0 - Python Associate Developer for Apache Spark 3.0 - Scala - What is the regular price for Databricks certification exams? Aug 6, 2021 · Published Aug 6, 2021 + Follow Hi all, I work as a data engineer having 5+ years of experience in IT. I have 3+ years of experience in working with Apache Spark. I wanted to test my knowledge... Hi @Abhishek Pradhan , The Apache Spark Associate Developer is applied for Data Engineer and Data Scientist learning paths. This exam will assess you in Spark architecture and in the use of Spark DataFram API to manipulate data. What is covered by the exam? 📋. Although the exam covers data manipulation, the SQL language is not assessed.💯Authentic and Reliable Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 Dumps Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 dumps are designed on the pattern of real exams. It will help you to feel like a real exam-like environment in real Databricks Certified Associate Developer for Apache Spark 3.0.Introduction The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark architecture, the Spark DataFrame API and the ability to apply ...May 28, 2023 · Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 08-02-2023; Azure - Databricks - account storage gen 2 in Machine Learning 06-13-2023; Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund in Data Engineering 05-28-2023 How To Prepare For Databricks Certified Associate Developer for Apache Spark 3.0 1- You can start by following Kishan Yadav and Mitchell van Rijkom on LinkedIn who post awesome content about Spark ...Apr 23, 2022 · Check out the course: https://bit.ly/3L9MHIRLearn Apache Spark 3 and pass the Databricks Certified Associate Developer for Apache Spark 3.0You will learn the... The Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 pdf dumps are very supportive for me to pass my Databricks Certified Associate Developer for Apache Spark 3.0 certification exam and I obtained Apache Spark Associate Developer certification successfully.I’ve recently cleared the exam for the “Databricks Certified Associate Developer for Apache Spark 3.0” certification. In return to the community, I’ve decided to write this post sharing my own study…Aug 17, 2022 · Earning the Databricks Certified Associate Developer for Apache Spark 3.0 certification has demonstrated an understanding of the basics of the Apache Spark architecture and the ability to apply the Spark DataFrame API to complete individual data manipulation tasks. Check out the course: https://bit.ly/3L9MHIRLearn Apache Spark 3 and pass the Databricks Certified Associate Developer for Apache Spark 3.0You will learn the...Why no Practice Test for Databricks Professional Exam ? in Data Engineering a week ago; Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 3 weeks ago; Databricks Certified Data Engineer Associate Certificate or Badge not received in Data Engineering 07-16-2023Apache Spark Developer Associate. The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark DataFrame API and the ability to apply the Spark DataFrame API to complete basic data manipulation tasks within a Spark session. Learn more.In this section, you will learn how to Get Started with Databricks Certified Associate Developer for Apache Spark 3Here are the full Databricks Courses with ...Databricks Certified Associate Developer for Apache Spark 3.0/2.4 Spark 3.0 certification is newly released by Databricks in June 2020. This consists of 60 questions that are framed mostly around ...English English [Auto] Databricks Certified Associate Developer - Apache Spark 2022 4.4 (1,248 ratings) 10,437 students What you'll learn Databricks Certified Associate Developer for Apache Spark exam details Setting up Databricks Platform for practice to also to prepare for Databricks Certified Associate Developer for Apache Spark ExamSuspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 2 weeks ago; Databricks Certified Data Engineer Associate Certificate or Badge not received in Data Engineering a month ago; Badge not received for Databricks Certified Data Engineer Associate in Data Engineering 07-14-2023Learn Apache Spark 3 and pass the Databricks Certified Associate Developer for Apache Spark 3.0. Hi, My name is Wadson, and I’m a Databricks Certified Associate Developer for Apache Spark 3.0. In today’s data-driven world, Apache Spark has become the standard big-data cluster processing framework.Hi @Abhishek Pradhan , The Apache Spark Associate Developer is applied for Data Engineer and Data Scientist learning paths. This exam will assess you in Spark architecture and in the use of Spark DataFram API to manipulate data. What is covered by the exam? 📋. Although the exam covers data manipulation, the SQL language is not assessed.a.5 supervise flag to spark-submit. In standalone cluster mode supports restarting your application automatically if it exited with non-zero exit code.Databricks Certified Associate Developer for Apache Spark 3.0/2.4 Spark 3.0 certification is newly released by Databricks in June 2020. This consists of 60 questions that are framed mostly around ...Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund in Data Engineering 05-28-2023; Databricks Certified Associate Developer for Apache Spark 3.0 - Python Cancellation in Data Engineering 05-28-2023; Databricks Certification Exam Got Suspended. Need help in resolving the issue in Data Engineering 05-20-2023The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ...The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ...Sep 23, 2022 · Earning the Databricks Certified Associate Developer for Apache Spark 3.0 certification has demonstrated an understanding of the basics of the Apache Spark architecture and the ability to apply the Spark DataFrame API to complete individual data manipulation tasks. The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ...Databricks Page for Spark Developer Associate:https://www.databricks.com/learn/certification/apache-spark-developer-associateRegister for the Exam:https://ww...Overview. This is a practice exam for the Databricks Certified Associate Developer for Apache Spark 3.0 -. Python exam. The questions here are retired questions from the actual exam that are representative of the questions one will receive while taking the actual exam.

Aug 29, 2023 · Most of the candidates choose our Databricks Certified Associate Developer for Apache Spark 3.0 Exam study materials to clear Associate-Developer-Apache-Spark just for one time. The practice tests provide by us contain many actual questions and answers, after 20-30 hours' study on it, you are sure to pass it. . Sliding glass door with dog door built in lowe

databricks certified associate developer for apache spark 3.0 python

May 31, 2021 · Training — Databricks Certified Developer for Spark 3.0 Practice Exams → this is a well-rated Udemy course with a comprehensive set of questions for the certification exam that you can ... a.5 supervise flag to spark-submit. In standalone cluster mode supports restarting your application automatically if it exited with non-zero exit code.Aug 5, 2020 · Databricks Certified Associate Developer for Apache Spark 3.0/2.4 Spark 3.0 certification is newly released by Databricks in June 2020. This consists of 60 questions that are framed mostly around ... Edit: looking at the content for both and "Databricks Certified Associate Developer for Apache Spark 3.0" is spark centric but pretty dam basic. "Databricks Certified Professional Data Engineer" goes to a deeper level but covers a lot of databricks specific stuff that I'm not in love with. "Databricks Certified Professional Data Engineer" looks ...Databricks Inc. 160 Spear Street, 13th Floor San Francisco, CA 94105 1-866-330-0121Most of the candidates choose our Databricks Certified Associate Developer for Apache Spark 3.0 Exam study materials to clear Associate-Developer-Apache-Spark just for one time. The practice tests provide by us contain many actual questions and answers, after 20-30 hours' study on it, you are sure to pass it.Databricks Page for Spark Developer Associate:https://www.databricks.com/learn/certification/apache-spark-developer-associateRegister for the Exam:https://ww...The Dumpsgate Databricks Certified Associate Developer Exam Dumps is a collection of actual and valid exam questions gathered by IT professionals. Our dumps are up-to-date and easy to understand. The in-depth answers of Databricks certified associate developer for Apache Spark exam questions will help you ace your exam without any anxiety.Nov 17, 2022 · Published Nov 17, 2022. + Follow. Como eu adquiri recentemente a certificação Databricks Certified Associate Developer for Apache Spark 3.0, decidi compartilhar a minha experiência para te ... Regional and Interest Groups. Americas; APAC; Interest Groups; EventsI personally recommend the book Data Analytics with Spark using Python because It’s small, It’s well written, It’s contained in scope while still explaining the engine mechanics, It’s available at my local libraries. The course consists of two practice tests of 50 questions. Note that the language being used is Scala. This course primarily prepares you for the Databricks Certified Associate Developer for Apache Spark 3.0 certification exam (not affiliated) in Scala, although it can probably also be used for certifications paths hosted by different companies and the Databricks Certified Associate Developer ... May 28, 2023 · Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 2 weeks ago; Databricks Certified Data Engineer Associate Certificate or Badge not received in Data Engineering a month ago; Badge not received for Databricks Certified Data Engineer Associate in Data Engineering 07-14-2023 The following practice tests are tailored for those who wish to prepare for the Databricks Certified Associate Developer for Apache Spark 3.0 with Python exam. I recently got certified and decided to recreate a similar exam as I know how challenging it was to find any good practice materials on the internet. Notice: The following tests are not ... Suspended - Databricks Certified Associate Developer for Apache Spark in Data Engineering 2 weeks ago; Databricks Certified Data Engineer Associate Certificate or Badge not received in Data Engineering a month ago; Badge not received for Databricks Certified Data Engineer Associate in Data Engineering 07-14-2023Apache Spark Developer Associate. The Databricks Certified Associate Developer for Apache Spark certification exam assesses the understanding of the Spark DataFrame API and the ability to apply the Spark DataFrame API to complete basic data manipulation tasks within a Spark session. Learn more.Aug 29, 2023 · Most of the candidates choose our Databricks Certified Associate Developer for Apache Spark 3.0 Exam study materials to clear Associate-Developer-Apache-Spark just for one time. The practice tests provide by us contain many actual questions and answers, after 20-30 hours' study on it, you are sure to pass it. Databricks Certified Associate Developer for Apache Spark 3.0 - Python refund. 05-28-2023 11:04 AM. I have scheduled an examination on 1st June 2023 and due to personal reason, I have cancelled the examination on 26th May 2023 (more than 72 hours) but I am yet to receive the refund amount. In the auto generated mail it is mentioned that the ...Databricks Spark Developer 3.0 for Scala version Exam Questions (Databricks Certified Associate Developer for Apache Spark 3.0) We are offering 180 latest real Databricks Spark Developer 3.0 (Scala) Exam Questions for practice, which will help you to score higher in your exam. Aim for above 85% or above in our mock exams before giving the main ....

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