Amazon Technical Interview Questions for Freshers

The growing demand for careers at Amazon has opened up numerous opportunities for freshers in the technical field. Amazon is one of the leading global technology companies, known for its innovation in cloud computing, e-commerce, and software development. Organizations and candidates are increasingly drawn to Amazon due to its strong work culture, advanced technologies, career growth opportunities, and focus on customer-centric solutions. To help you achieve your dream job, we have compiled a set of Amazon Technical Interview Questions for Freshers. This article will guide and support you in your preparation. Let’s get started!

1.What is AWS, and why is it so popular?

Ans:

AWS is a comprehensive cloud computing platform providing services for building, deploying, and managing applications. It is highly scalable and supports many programming languages and frameworks. Its flexibility and reliability make it popular worldwide.

2.  What are AWS Availability Zones and Regions?

Ans:

A Region is a geographic area containing multiple isolated data centers called Availability Zones. Each Zone is independent and ensures redundancy and fault tolerance. This design ensures high availability for applications hosted on AWS.

3. What is the difference between Public Cloud and Private Cloud?

Ans:

Public Cloud services are shared over the internet for multiple customers, while Private Cloud is dedicated to a single organization. Public Cloud is cost-effective and scalable, whereas Private Cloud offers higher security. The choice depends on workload sensitivity and compliance.

4. What is Elastic Load Balancing (ELB), and how does it work?

Ans:

ELB automatically distributes incoming traffic across multiple EC2 instances to prevent overload. It monitors instance health and routes traffic only to healthy instances. This improves application availability and handles varying traffic efficiently.

5.What is the AWS Shared Responsibility Model?

Ans:

AWS manages security for the cloud infrastructure, while customers manage security for their applications and data. It clearly defines responsibilities for compliance and risk management. This ensures security is properly maintained.

6. What are the advantages of AWS Elastic Beanstalk?

Ans:

• Elastic Beanstalk simplifies deploying and managing applications by handling provisioning, scaling, and monitoring.
• Developers can focus on writing code using familiar frameworks.
• It reduces infrastructure overhead and speeds up deployment.

7. What is the meaning of AWS serverless architecture?zard.

Ans:

• Serverless architecture allows developers to run applications without managing servers.
• AWS automatically provisions and scales resources based on demand.
• It reduces cost and operational overhead while speeding up development.

8. What is AWS Well-Architected Framework, and why is it important?

Ans:

• It provides best practices for building secure, reliable, efficient, and cost-optimized cloud applications.
• The framework has five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization.
• It helps identify improvement areas in architecture.

9. How is data protected at rest and in motion in AWS?

Ans:

Data at rest is encrypted using AES-256, while data in transit uses TLS encryption. Access control ensures only authorized users can access sensitive information. These measures ensure security and data integrity across AWS services.

10. What are the core components of AWS Global Infrastructure?

Ans:

AWS infrastructure consists of Regions, Availability Zones, and Edge Locations. Regions contain multiple Zones with isolated data centers for fault tolerance. Edge Locations deliver content faster via Amazon CloudFront.

11. What is LCM and how to calculate it?

Ans:

The LCM (Least Common Multiple) of two numbers is the smallest number divisible by both. For example, LCM of 6 and 8 is 24. It is useful in scheduling, ratios, and multiple-related problems.

12. What is HCF and how to calculate it?

Ans:

• HCF (Highest Common Factor) is the largest number dividing two numbers exactly.
• For 18 and 30, HCF is 6.
• It is important in simplifying fractions and ratios.

13. How to calculate 20% of a number?

Ans:

• To find 20% of a number, multiply it by 0.2.
• For instance, 20% of 500 = 500 × 0.2 = 100.
• Percentages are used in discounts, profit calculations, and growth analysis.

14. How many degrees are in a triangle??

Ans:

• The sum of interior angles in any triangle is always 180 degrees.
• This rule applies to all types of triangles: equilateral, isosceles, and scalene.
• It is a fundamental geometry concept.

15. What is the square root of 256?

Ans:

The square root of a number is a value that multiplies by itself to give the original number. √256 = 16 because 16 × 16 = 256. Square roots are used in calculations involving areas, distances, and statistics.

16. What is a variable in programming?

Ans:

A variable is a named memory location used to store data that can change during program execution. It allows programs to store input, output, and intermediate results. Variables are fundamental in programming logic.

17. What is the output of 3+5*2?

Ans:

• Using operator precedence, multiplication is done first (5 × 2 = 10), then addition (3 + 10).
• The output is 13. Understanding precedence avoids calculation errors in code.

18. What is the difference between = and ==?

Ans:

= assigns a value to a variable, while == compares two values for equality. Using them correctly is critical to prevent logical errors in code.

19. Which loop executes at least once?

Ans:

A do-while loop executes its block first before checking the condition. This ensures it runs at least once, unlike a while loop. It is useful when an action must occur before validation.

20 . How do you reverse a string?

Ans:

• A string can be reversed by swapping characters from start to end iteratively or using built-in functions.
• Reversing strings is common in algorithms and text processing tasks.

21. How do you reverse a string?

Ans:

A string can be reversed by swapping characters from start to end iteratively or using built-in functions. Reversing strings is common in algorithms and text processing tasks.

22. What is recursion?

Ans:

Recursion is when a function calls itself to solve a smaller instance of the same problem. It simplifies problems like factorial, Fibonacci, and tree traversal. Base conditions prevent infinite recursion.

23. What is a function?

Ans:

• A function is a reusable block of code performing a specific task.
• Functions improve modularity, readability, and maintainability in programs.
• They can take input and return results.

24. What is an array?

Ans:

• An array is a collection of elements stored in contiguous memory locations.
• Each element is accessible by an index.
• Arrays are useful for storing and manipulating multiple data items efficiently.

25. How to find the largest element in an array?

Ans:

• Iterate through the array while maintaining a variable for the current maximum.
• Compare each element and update the maximum if needed.
• This ensures finding the largest value efficiently.

26. What is a pointer?

Ans:

A pointer stores the memory address of another variable. It allows direct memory access, manipulation, and efficient data structures. Pointers are widely used in C/C++ programming.

27.What is malloc in C?

Ans:

malloc allocates memory dynamically at runtime and returns a pointer to the allocated space. It is essential for creating flexible data structures. Memory must be freed to avoid leaks.

28. What is a syntax error?

Ans:

A syntax error occurs when code violates language rules. The program cannot compile until the error is fixed. Correct syntax is necessary for successful execution.

29.  How to swap two numbers without a temporary variable?

Ans:

Use arithmetic operations (addition/subtraction) or bitwise XOR to swap values. This avoids extra memory usage. It demonstrates logical manipulation in coding interviews.

30. Which data type stores decimal numbers?

Ans:

Decimal numbers are stored using float or double types. These types handle fractional values and allow precision in mathematical operations.

31. What is the purpose of the Data Export Service in Dynamics 365?

Ans:

The Data Export Service facilitates the replication of dynamics 365 data to Azure SQL database. It enables organisations to perform complex reporting and analysis on data stored in Azure SQL Database and the service ensures near real-time synchronisation between dynamics 365 and Azure SQL Database. by using Azure SQL Database, users can leverage advanced reporting tools and analytics services and data export service supports large datasets, enhancing scalability and performance.

33. Describe the purpose of business process stages.

Ans:

• Business process stages in Dynamics 365 represent phases within a workflow or business process.
• They help break down complex processes into manageable steps, providing a structured approach.
• Stages define key milestones, making it easier for users to track progress and understand the current status.
• Each stage can have associated actions, guiding users on required tasks and activities.
• Business process stages contribute to better organisation, monitoring, and optimization of business processes.

34. How do you create a new Business Rule in Dynamics 365?

Ans:

• Navigate to “Settings” and select “Customizations.”
• Choose “Customise the System” and open the entity for which you want to create the rule.
• Open the “Business Rules” tab, click “New,” and define the rule details.
• Add conditions, actions, and recommendations within the rule designer.
• Save and activate the business rule to apply the defined logic to the specified entity.

35. How do you create a custom dashboard in Dynamics 365?

Ans:

To create a custom dashboard in Dynamics 365, navigate to the “Dashboards” area and select “New Dashboard.” Specify the dashboard properties, such as name and layout. Use the drag-and-drop interface to add components like charts, lists, and web resources. Configure each component to display relevant data and metrics. Save and publish the dashboard to make it available to users, providing a personalised and insightful view of their Dynamics 365 data.

36. Describe the purpose of Record Ownership in Dynamics 365.

Ans:

Record Ownership in Dynamics 365 determines which user or team is responsible for a specific record. It plays a crucial role in defining access permissions, as the record owner typically has full control over the record. Ownership impacts data visibility, security, and accountability within the system. It ensures that users can access and manage records relevant to their responsibilities, facilitating organised and secure data management.

37. What is the purpose of the Power Platform in relation to Dynamics 365?

Ans:

The Power Platform is a suite of Microsoft tools that includes Power BI, Power Apps, and Power Automate. In relation to Dynamics 365, the Power Platform enables users to create custom apps, automate workflows, and analyse data. It allows for seamless integration and extends the capabilities of Dynamics 365 by providing a comprehensive set of tools for building solutions tailored to specific business needs.

38. How can you customise the sitemap in Dynamics 365?

Ans:

To customise the sitemap in Dynamics 365, navigate to the “Customise the System” area in “Settings.” Select the “Sitemap” tab and open the sitemap designer. Drag and drop components to rearrange the structure, add new entities or subareas, and modify existing links. Save and publish the changes to make the custom sitemap available to users. Customising the sitemap allows organisations to tailor the navigation experience within Dynamics 365 to match their specific requirements.

39. Explain the purpose of the Dynamics 365 App Designer.

Ans:

• The Dynamics 365 App Designer allows users to create custom apps tailored to their specific business needs.
• Users can design the app’s structure, define components, and include relevant entities and dashboards.
• The App Designer simplifies the process of app creation, requiring minimal technical expertise.
• Custom apps created with the App Designer enhance user productivity by focusing on specific tasks.
• It provides a flexible solution for tailoring Dynamics 365 experiences to meet unique organisational requirements.

40. How can you add a new field to an existing entity in Dynamics 365?

Ans:

• Navigate to “Settings” and select “Customizations.”
• Choose “Customise the System” and open the entity to which you want to add a field.
• Open the “Fields” tab and click “New Field.”
• Define the field properties, such as data type, display name, and length.
• Save and publish the changes to make the new field available for use in the entity.

40. What is MS Dynamics 365 ax?

Ans:

Dynamics AX is a powerful enterprise resource planning (ERP) software package for finance and operations. It helps global enterprises organize, automate, and optimize their processes on-premises, in the cloud, or through hybrid deployment. It’s part of the Microsoft Dynamics suite of intelligent business applications.

41. Is Dynamic 365 secure?

Ans:

As a holistic CRM solution, Dynamics 365 provides a robust security framework to avoid any data leaks or attacks. Customer data can be highly confidential and sensitive and requires extreme caution when shared across your various applications and agents.

42. Is Microsoft Dynamics on premise?

Ans:

With unrivalled flexibility, Microsoft Dynamics 365 is available as a cloud service, or installed as an on-premise database. Microsoft Dynamics 365 is available in the cloud, or can be implemented as an on-premise or hybrid solution, offering unrivalled flexibility to move from one deployment model to another.

43. How do I install Dynamics 365 on premise?

Ans:

On the dashboard, select the Shared asset library tile. On the Model tab, in the grid, select the Dynamics 365 for Operations on-premises – Deployment scripts row. Select Versions, and then download the latest version of the zip file for the scripts.

44. Is Dynamics 365 a web app?

Ans:

Our Web Apps add functionality and expand the capabilities of the out-of-the-box Microsoft Dynamics 365 Human Resources solution. … Each Web App supports a different range of functions that makes the lives of your workforce much easier and prepares your company for the future.

45. What programming language is used for Dynamics 365?

Ans:

X++ As we mentioned, X++ is the main programming language of Dynamics AX, now rebranded as Dynamics 365 for Finance and Operations. This programming language powers all the items and elements that you can find within this Microsoft environment. Such as classes, forms, queries, data types, etc.

46. Is X++ similar to Java?

Ans:

X++ was designed to be a superset of Java with strong data access features. In some ways the data access features were like LINQ, but it is much older and in some ways more powerful.

47. Describe the architecture of microsoft dynamics 365 apps?

Ans:

48. How do I access my Dynamics 365 online database?

Ans:

Open your Microsoft Sql Server Management studio and connect to your environment. Click on Connect. Now you are connected, you can access the database in read-only mode. Following the user you are connected with, you will be limited to request the entities you have the read right set in the CRM.

49. How do I connect to Microsoft Dynamics 365?

Ans:

Create a connection

Open a record, and then on the command bar, select Connect > To Another. The record you start with is known as the source record. In the New Connection dialog box, enter a Name and As this role to identify the connection role for the record you want to connect to, called the target record.

50. What is Dynamics 365 used for?

Ans:

Microsoft Dynamics 365 is a cloud-based business applications platform that combines components of customer relationship management (CRM) and enterprise resource planning (ERP), along with productivity applications and artificial intelligence tools.

51. What companies use Dynamics NAV?

Ans:

Companies using Microsoft Dynamics NAV for Enterprise Resource Planning include: Grupo ACS, a Spain based Construction and Real Estate organisation with 195461 employees and revenues of $40.44 billions, Spar International, a Netherlands based Consumer Packaged Goods organisation with 50000 employees

52. What can Microsoft Dynamics do?

Ans:

Dynamics CRM is a piece of business software, made by Microsoft. It’s a customer relationship management software that helps businesses manage their customer database, generate new leads, engage with their customers, and resolve customer service issues.

53. What modules are available in Dynamics 365?

Ans:

• Dynamics 365 Modules:

• Finance (Finance and Operations)
• Supply Chain Management.
• Retail/Commerce.
• Business Central.
• Talent.
• Sales.
• Customer Service.
• Project Service Automation.

54. Can I trust Microsoft with my data?

Ans:

As explained over at the Microsoft Trust Center, Microsoft does not share your data with third parties, including advertiser-supported services. They also do not mine any of your data for marketing or advertising purposes.

55. What is included in Dynamics 365?

Ans:

What is included with Microsoft Dynamics 365? Microsoft combines Dynamics CRM and ERP solutions into one, cloud-enabled product offering. The Dynamics 365 Apps are Sales, Field Service, Customer Service, Project Service Automation, Marketing, Financials, and Operations.

56. How to clean up dormant contacts in CRM and generate insights?

Ans:

57. Where is Microsoft Dynamics hosted?

Ans:

Dynamics 365 in the cloud Cloud-based instances of Dynamics 365 are hosted on Azure, Microsoft’s web services platform, which allows programs and services to be built, tested, deployed, and managed from a network of managed data centers located across the globe.

58. What are CDS PowerApps?

Ans:

CDS is the free database service that you can use in Power Apps to store and retrieve the data of your apps. So in a nutshell; CDS stores your PowerApps data at no extra cost, it is easy to manage. You don’t need a database developer to go and build a database for you to load your data into it.

59. Where is all of my data stored?

Ans:

All of the data (i.e. YOUR data) is stored on hard drive arrays in servers that are susceptible to many of the same faults as the storage in your laptop or desktop computer. Additionally, depending on which provider you use, the data centre could be based in a different country, or possibly even a different continent.

60. How much storage do you get with Dynamics 365?

Ans:

For new subscriptions activated after 1st April 2019, the default tenant-wide storage capacities are: Dataverse for Apps Database: 10 GB. Dataverse for Apps File: 20 GB.

61. Is forward mailbox Dynamics 365?

Ans:

Forward mailbox functionality in Server-Side Synchronization was initially made available in previous versions of Dynamics 365 to ease customer migration from the E-mail Router to Server-Side Synchronization if the pre-existing environment was previously set up to use forward mailbox functionality.

62. What database does Microsoft Dynamics use?

Ans:

SQL server Dynamics 365 CRM – SQL server is the database used for Dynamics 365 system and it is one of the prerequisites to install Dynamics 365.

63. What is CDM and CDS?

Ans:

Summary. Although the names are so similar, these two are talking about different things: CDS is a data storage system, and CDM is a metadata structure framework. They often work with each other, because CDS, like any other database systems, would get a better outcome if it works with a unified data model.

64. Is Dynamics 365 the same as a power platform?

Ans:

65. Is Microsoft Dynamics a platform?

Ans:

Dynamics 365 is a new, cloud-based enterprise software platform, bundling ERP, CRM and HCM products alongside Power BI reporting functions in one streamlined, unified package.

66. What are the significant differences between configuration and customization?

Ans:

Configuration	Customization
The scope of the configuration and the future applications of CRM.	In order to write Plugins and custom workflows, the candidate would require a fair bit of programming language, and these are referred to as customization.
For instance, Dynamics CRM would always provide you with a very environment that is flexible in nature and of arrangement with the help of which admin users or end users can reap rich benefits.	Moreover, Dynamic CRM facilitates a broad scope in customization and configuration. Hence, it is suggested to think about shape first before the process of customization.

67. How can you enable or disable the form assistant? And how to be sure that the form assistant is expanded or not?

Ans:

One can use the following pathway to ensure this– Navigate to Customization >> Open the Entity >> Open Forms and Views >> Open Form >> Select Form Properties >> Open Display Tab >> Check/Uncheck the “Enable the Form Assistant” and “Expanded by Default”.

68. Explain the difference between theWorkflow and Dialogues?

Ans:

Workflow	Dialogues
Workflow refers to the Asynchronous process and requires no user input. It is a background process.	Dialogue works based on the asynchronous process and a user needs to give input.

69. How to enable/disable the form assistant? How to make sure the form assistant is expanded/collapsed on a form?

Ans:

Navigate to Customization >> Open the Entity >> Open Forms and Views >> Open Form >> Select Form Properties >> Open Display Tab >> Check/Uncheck the “Enable the Form Assistant” and “Expanded by Default”.

70. Explain how different Asynchronous and synchronous plugins are?

Ans:

synchronous	Asynchronous
Synchronous plugins must operate straight away.	Asynchronous plugins can be delayed.

71. Is Microsoft Dynamics GP going away?

Ans:

Recently, Microsoft announced that they would be discontinuing support for Dynamics Great Plains by 2025. ” Based on the Microsoft website below, as of now, Microsoft has not announced End of Life for Dynamics GP as a whole. They have only announced End of Support for older GP versions under Fixed Life Cycle Policy.

72. What is the core difference betweenDelete and Remove buttons on the solution?

Ans:

Removal button	Delete button
This helps in releasing the components from the solution.	This helps in removing a component from a CRM.

73. Describe the microsoft dynamic 365 CRM forum community forum?

Ans:

Microsoft Dynamics 365 is a cloud-based business applications platform that combines components of customer relationship management (CRM) and enterprise resource planning (ERP), along with productivity applications and artificial intelligence tools.

74. What are the differences between Find and Advanced Find?

Ans:

Find	Advanced find
It performs a search on an attribute	It performs a search on the conditions and attributes for which the user customizes or runs.
It is faster as it searches for one attribute and returns the result.	It is slower as it searches for all the attributes and conditions while parsing through records.
It is applicable on only active records.	It is applied to all the records.

75. Is Microsoft Dynamics an ERP system??

Ans:

Microsoft Dynamics is a line of enterprise resource planning (ERP) and customer relationship management (CRM) software applications. … Microsoft Dynamics offers services for small, medium, and large businesses.

76. Difference between GAC, Database, and Disk deployments?

Ans:

GAC Deployment	Database Deployment	Disk Deployment
It does not support CRM 2011 online deployments.	It supports CRM 2011 online deployments	It does not support CRM 2011 online deployments.
You can refer to external DLL assemblies used in Plugin only if the registration is in GAC.	You can refer to external DLL assemblies used in Plugin only if the registration is in GAC.	You can refer to external DLL assemblies from the disk and from GAC.
It is applicable on only active records.	It is applied to all the records.

77. Which company uses Microsoft Dynamics?

Ans:

The list of companies using Microsoft Dynamics 365 are Acres Group, Kastle Systems, BTD Manufacturing, and Bio-Techne. Which are the companies using Dynamics 365? The companies using Dynamics 365 are mainly the mid-sized and small organizations.

78. How secure is Microsoft Dynamics?

Ans:

Online Security

Data is encrypted at-rest by using Transparent Data Encryption (TDE) and backup encryption. Data backups are always encrypted. All network traffic inside the service is encrypted by using industry standard encryption protocols.

79. How Safe Is Microsoft cloud?

Ans:

The answer to all three questions is the same: The major cloud storage services are highly secure. In general, your files are better protected with a top cloud storage provider than they are on your laptop or an external drive.

80. Can Microsoft OneDrive be hacked?

Ans:

Yes, OneDrive can be hacked. While technically any online service can be hacked, the risk of this happening to a service like OneDrive or Microsoft, or a reputable service, is so small that you don’t have to worry about it. Your own account is at greater risk of compromise, as individual accounts are lost every day.

81. How secure is Microsoft OneDrive?

Ans:

Microsoft advertises the OneDrive Personal Vault with the fact that the data in it is even more securely encrypted in addition to the 2-factor authentication. However, as we have often pointed out, there are different types of encryption, and very few of them completely prevent third parties from accessing your data.

82. How long has Microsoft Dynamics 365 been around?

Ans:

Microsoft Dynamics 365 is a product line of enterprise resource planning (ERP) and customer relationship management (CRM) intelligent business applications announced by Microsoft in July 2016 and released on November 1, 2016.

83. What is the difference between plug-in and workflow with regard to security restrictions?

Ans:

Plug- in	Workflow
The user requires a system admin or system customizer security role and membership in the development administrator group, in order to register a plug-in with the platform	The user can use the web application for workflow.
Outer Join	Yes

84. What is the future of Dynamics GP?

Ans:

The future of Dynamics GP looks bright

But I’m afraid not. Microsoft has officially published a new Roadmap for Microsoft Dynamics GP and it confirms that the product will be enhanced and supported beyond 2028.

85. What type of CRM is Microsoft Dynamics?

Ans:

Dynamics CRM is a server-client application, which, like Microsoft SharePoint, is primarily an IIS-based web application, which also supports extensive web services interfaces. Clients access Dynamics CRM either by using a browser or by a thick client plug-in to Microsoft Outlook.

86. What is Microsoft Dynamics 365 used for??

Ans:

Microsoft Dynamics 365 is a cloud-based business applications platform that combines components of customer relationship management (CRM) and enterprise resource planning (ERP), along with productivity applications and artificial intelligence tools.

87. What is the difference between Microsoft 365 and Dynamics 365??

Ans:

Dynamics 365, as we know, is a cloud-based solution that offers all that you need for CRM and ERP, in a single package, while Office 365 is a subscription offering that offers access to office applications like Word, Outlook and Excel. It also allows access to other productivity services enabled over the internet.

88. What is included in Microsoft Dynamics 365??

Ans:

Dynamics 365 is a set of interconnected, modular Software-as-a-Service (SaaS) applications and services designed to both transform and enable your core customers, employees, and business activities. It combines CRM and ERP capabilities, integrating your data, business logic, and processes.

89. What are the different web services available in MS CRM?

Ans:

Deployment	Discover
To create and import organizations	To identify the available organization information in a deployment.
To enable and disable organizations.	To access data and metadata.
To add deployment administrators.	To configure IFD and claims-based authentication.

90. Is Microsoft Dynamics cloud-based?

Ans:

Dynamics 365 in the cloud

Cloud-based instances of Dynamics 365 are hosted on Azure, Microsoft’s web services platform, which allows programs and services to be built, tested, deployed, and managed from a network of managed data centers located across the globe.

91. Who uses Microsoft Dynamics ERP?

Ans:

Companies using Microsoft Dynamics AX for Enterprise Resource Planning include: Sempra US Gas & Power, a United States based Professional Services organisation with 17000 employees and revenues of $100.00 billions, Carrefour S.A., a France based Retail organisation with 321383 employees and revenues of $95.72 billions,

92. Is Microsoft Dynamics part of Azure?

Ans:

Dynamics 365 and Azure: Built for each other

With Azure, your Dynamics 365 can efficiently work with your database on-site, and the rest of your CRM and ERP on your cloud. They are built to work together, and you get more from each tool by hosting Dynamics 365 on Azure.

93. What are the differences between early binding and late binding?

Ans:

Early binding	Late binding
In early binding, the compiler binds the objects to methods at the compile time.	In late binding, the compiler binds the objects to methods at the runtime.
Example:Function overloading.	Example:Function overriding.