d. None of the above SQL Server Migration Tutorial from Coding compiler | SQL Server DBA Tutorial – Part 7, this blog is the seventh tutorial in the series, here you are going to learn about how SQL server migration works. Migrate to AWS Migration to every cloud has its own specific steps and requires expertise with the specific cloud ecosystem. Conversion is subset of data migration and is changing of formats. These questions will focus on the process of migrating the SQL Server databases from the on-premises instances to the Microsoft Azure database services. How can your database be accessed (firewalls, tunnels, VPNs)? a. Migrate complete legacy history into new target Cleanse in Source Some of them are easy to tune and take into consideration; others can be harder. For a test migration, you can take a backup of the content databases and then move it. a. DM team in Dev environment d. None of these Tools like the AWS Database Migration Service (AWS DMS) and AWS Schema Conversion Tool (AWS SCT), native engine tools, and others can help to automate some phases of the database migration process. At end of business blue print and before start of build phase Show Answer, 22) Which of the following is the process of collecting and capturing changes in the source applications? a. It should be done by developing customer programs during the project execution phase. Questions tagged [database-migration] Ask Question database-migration is the process of transferring data between storage types, formats, or computer systems. d. 90% of masters and 90% transaction data d. Loading b. c. Business Data Owners Change Data Capture 13. Show Answer, 41) As per best practice, what percentage of total data should be uploaded b. b. Abinitio Knowing your database roles and permission model, or at least having the name of the person who knows it and can grant access, can save you a lot of time. Trending Questions. Data Migration Have a successful database migration! b. Cut-over planning Conversion is subset of data migration and is changing of formats for smooth integration. c. Attribute & LoV mapping c. Both A & B d. Golden Gate b. Legacy Administrator Or you are the boss, CIO, or both, and you finally decided to jump on the bandwagon. b. c. Target data loading d. All of the above While this might seem pretty straightforward, it involves a change in storage and database or application. a. You don’t want any surprises when you are 10 terabytes deep in the data migration phase. To use data migration service, we need to create a replication instance which will be used to run migration tasks. Some apps need this access, but in most cases the sun will shine the day after your DBA loses database admin privileges, as it does for other customers. b. Show Answer, 13) UAT is a testing done by whom and where? a. Easily migrate your data, schema, and … Hence, the format, type, value etc., matters while migrating between databases. Show Answer, 38) What percentage could be the most acceptable and feasible target for achieving cleansing and enrichment in large data migration projects? Yes, only in cases where readymade data upload programs are available and reconciliation of uploaded data is clients responsibility a. Select the most accurate from below. Migration is not an easy task to transfer database from a single or multiple user databases to the different server. Select the most appropriate one d. No, it is required in all the cases as it helps not only in reconciling the extracts for its completeness and accuracy but also for better control of overall management of project You have even more decisions if you are switching engines. Before going to learn this tutorial, we recommend you to go through the previous SQL Server Restoration DBA Tutorial – Part 6. Also, unless there is a pressing need, it’s better to postpone all schema transformations until the end of the migration. You want the transition to be seamless and to be up and running at full capacity as soon as possible, so asking all the questions ahead of time and being prepared is crucial for successful data migration. Show Answer, 24) The build phase of systems development includes: Performances does matter, since I will have to handle with sizable databases. b. Show Answer, 57) Which one is a feature of Big-Bang migration Show Answer, 46) Dedicated team and special focus is not needed for carrying out data migration activities while ERP implementation? Show Answer, 20) Data migration is a Close. Staging a. Review Technical Specifications/Notify errors/resolution a. Can you afford downtime? Show Answer, 55) Difference between Data Migration and Data Conversion? Show Answer, 3) From Migration point of View, Data profiling is This is important to understand because most migration tools will put some additional load on your source database. Login to AWS management console, Click on Services and type database migration service. 1st Dry Run Data Migration - Database Questions & Answers 1) Assessment of Data Migration viability meansa. How many really big tables do you have (200 gigabytes or 200 million rows in size)? Transformation Rules document c. Java Can you run your app on the old and the new database simultaneously? As system functionality testing requires only sample data d. No. Conceptual and Logical data models b. Show Answer, 68) Default values for missing data should be mainly covered as part of – c. Integration Testing Show Answer, 45) Data governance process should be implemented during migration phase of project for Show Answer, 35) Which of the following can be used to hold the data extracted from disparate sources for cleansing/standardization? Show Answer, 73) Which is not the data migration best practice b. You’ll also need information about the network setup your organization has with its cloud provider. If the answer is never, think about doing it. b. Aligning your data extraction tasks as per their time window Requirement and Data Quality Assessment Phase Data subset Show Answer, 17) CDC in data migration parlance is Show Answer, 65) Which is generally an activity of Requirement & Data Quality Assessment Phase Do you know what VPC you want to use in AWS? d. None of the above a. Involves Volume Testing. a. At The Same Time As Systems Testing. For example, can you make use of NoSQL stores or data warehouses on the other end? Show Answer, 43) Cleansing of data by business users should be started only after build phase? d. Vendors a. Datastage You need to have your tables and primary keys before you can move data. Show Answer, 7) Synchronization of three ingredients for a successful data migration result Show Answer, 69) Identify the most appropriate use case for data transformation Iterative addition of source-target pairs. Summary Database migration projects can be hard, especially your first one, but the benefits of migrating your database to the cloud are significantly greater than the challenges migrations can present. What is your contingency plan if things go wrong? Continued investment in friction-free migrations. AWS DMS has a feature called premigration validation that verifies types involved in the migration and warns you about the issues you might have with your data types. For many use cases, using Amazon RDS for your target database is a natural choice; you get the benefits of a managed service. Show Answer, WhatsApp: how to free up space on Android - Trenovision, WhatsApp Web : how to make voice and video calls on PC, Apps for Xbox - How to play Xbox One games on an Android smartphone remotely - Trenovision, How to play PC games on an Android smartphone remotely, How to play PC games on an Android smartphone remotely - Trenovision, How to play PlayStation 4 games on an Android smartphone remotely, Loan Approval Process how it works ? These tables will cause you some pain if you want changes to them to be part of your change data capture (CDC) stream. What are the underlying data implications? a. Source/Target data owners in the presence of business and DM team These are the set of Database interview questions and answers which are mostly asked in the interview. Do you understand the benefits offered by Amazon RDS? Enable multi-AZ if you need … Of course, you know how to set up supplemental logging and you remember most of the Oracle data types and how they map to the rest of the database engines. b. c. OWB To track versioning of your mapping specifications Hi, I have a pega application in production with Oracle DB. Be aware that the planning can often take more time than the actual migration! d. C++ 15. a. How much? To make a long story short, you will need your best people on this project. d. Defining Migration strategy But there are also limitations. Microphone – Microphone (Realtek High Definition Audio) Didn’t work, WhatsApp Web: How to lock the application with password, How to make lives on YouTube using Zoom on Android. 3. Show Answer, 61) Identify the main layer for generating Profiling reports You might be surprised—most customers can’t answer this question. Martina Liebsch, head of policy and advocacy at Caritas Internationalis, looks at why such large movements of people are challenging nations and individuals. 2nd Dry Run Show Answer, 19) Data Fallout layer is meant to expose information to business on It can be very painful to move even small numbers of them. Using RDS frees you from spending time on these activities. d. None of the above Conversion is changing of formats. It becomes worse if you are migrating a database that is part of your corporate fleet. 6. c. Synchronization of Source & Target system d. All of these Some you’re inheriting from your current environment, or your app dictates them. I also check to see if the new server meets the technical requirements for the SQL database prior to beginning the migration process." Show Answer, 25) Unit testing Before discussing the interview questions and answers, it is better to show briefly what the difference between the database administrator and the Microsoft Azure Data Engineer positions is. b. d. Building Migration components c. Data Mining Q. a. c. CUT Phase In the last section, we will discuss some more detailed information related to an AWS migration. Legacy to Oracle Apps. Green field implementation Normal Load c. It can be done in cases where data to be migrated is not impacting the existing data Data Profiling c. Finalizing the business rules for conversion Have a successful database migration! a. Later, when you migrate your data, verify that all your data looks correct on the other end before you shut down the power at your data center. What do the transaction boundaries look like? Yes, as implementation team can carry out the testing based on requirements gathered during requirement gathering phase Show Answer, 70) Identify the issue which ideally can’t be fixed in staging area For example, if you are migrating to a MySQL database, it is perfectly fine to migrate to Amazon RDS Single-AZ MySQL (actually faster) and then convert it to an Amazon RDS Multi-AZ instance, or go further and use Amazon Aurora. Show Answer, 9) Challenge you will face while working with 3rd party managed legacy source system for Understand your requirements I know you want to see that giant server that runs your database or databases go away for good, and sooner rather than later. b. Data migration is a big undertaking, so start thinking about these challenges—and the solutions you’ll use to address them—early on! b. Migrate all active transactions a. b. a. A few factors can affect how long the wait will be for the last row to show up on the other end. c. No. 7. 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