Top Odata interview questions to Prepare

Are you looking for OData Interview Questions? If yes then you are at right place. Today I am going to share the complete details regarding OData Interview Questions.

The Open Data Institute (ODI) is a global network of public interest organisations working together to promote open data. The organisation was founded in 2013 in response to the growing demand for open government data across the globe.

In order to get hired in OData position, you should have knowledge of OData API and its related concepts. This article provides comprehensive information about OData Interview Questions and answers.

Describe how OData works?


OData is an Application Programming Interface (API) that defines data models and service operations for querying and updating data over HTTP using web protocols. Data services enable client applications to access and manipulate enterprise data without having to understand its structure or location. Using OData, you can create REST-based Web APIs that expose information about your company’s business processes, products, customers, partners, employees, etc.

How does OData differ from SOAP?

The original version of OData was introduced as a replacement for SOAP due to the limitations of the latter protocol. Among the reasons for SOAP’s shortcomings were:
• SOAP uses XML as primary format for exchanging messages between clients and servers. However, XML is not human readable and requires special tools to be processed.
• SOAP was designed mainly for synchronous communication while OData supports both synchronous and asynchronous messaging.
• SOAP is based on WSDL (Web Services Description Language), which is a declarative language that describes what a server offers. OData uses JSON as a representation for the description of data entities.

What are the advantages of using OData?

OData provides some significant advantages compared to traditional web services:
• OData is built on top of HTTP and thus can use existing infrastructure, including caches, proxies, load balancers, firewalls, and routers.
• OData enables developers to work with relational databases directly instead of requiring them to learn SQL.
• OData is flexible enough to provide different levels of granularity for queries.
• OData can be consumed by mobile devices, which makes it useful for building Internet of Things (IoT) solutions.

Define odata?


ODATA (Open Data Application Technology) is a set of standards developed by the OASIS organization that provides data model definitions and interoperability specifications for web services that expose application-level information.

What does odata do?


ODATA defines a standard way to describe data using a uniform vocabulary. In addition, it specifies how to exchange that data between applications and across different platforms.

Why should I use odata?


OData enables users to access and reuse business data without having to worry about the specific format of the data. For example, if you have a spreadsheet file containing sales figures, you don’t need to know whether those numbers were entered as integers, decimals, or percentages. You just want to know what the total was. Similarly, you could create a web service that exposes these same sales figures and let people query them via any number of client applications.

How does odata work?


The basic idea behind odata is to define a simple, open data model that lets you share structured data over the Web. If you think of a typical database table, then you’ll get an idea of how odata works. A database table contains rows of data organized into columns. Each row represents a single record. An odata document describes a collection of records in much the same way. The difference is that an odata document doesn’t necessarily represent a physical entity. Instead, it consists of a set of fields that describe some aspect of the resource being described. These fields may be nested to allow for more complex descriptions.

What are the disadvantages of odata?


There are no known disadvantages of odata at this time.

What is the difference between odata and xml?


XML is a markup language that’s used to describe documents in machine readable formats. XML is primarily designed to enable programmers to write programs that manipulate documents. By contrast, odata is intended to provide a simple mechanism for describing collections of information.

ODATA Interview Q & A | 1 | O Data Basics | Protocol | SOAP Vs REST | Webservice

Webservices #soap #REST #Protocol In this video, I have discussed the - 1. What is Odata? 2. What is Protocol? 3. What is REST? 4. What is SOAP? 5. What is ...

Some books on odata interview questions

OData Programming Cookbook for .NET Developers

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