Interview Questions.

Question 1. What Is Sap Hana Vora?

Answer :

To quote from the professional SAP Press Release:

“SAP HANA Vora is a new in-reminiscence query engine which leverages and extends the Apache Spark execution framework to provide enriched interactive analytics on Hadoop. As businesses take part of their virtual transformation adventure, they face complicated hurdles in managing dispensed Big Data anywhere, compounded via the lack of business manner cognizance across company apps, analytics, Big Data and IoT assets.”

In quick, SAP HANA Vora extends Hadoop with in-reminiscence computing, organisation functionality and records technological know-how, supporting clients simplify their IT panorama and bring context to records lakes. It additionally extends the HANA platform with the capacity to save Big Data and has facts temperature management to transport records from HANA to Vora.

Question 2. What Are The Key Use Cases For Vora?

Answer :

Vora is a bridge between SAP HANA and Hadoop, and as such there are many exciting use cases.

One honest use case is around records tiering for current SAP customers. It may be feasible to apply commodity Hadoop clusters to keep chillier information for SAP ERP, like income documents, pricing and billing situations. These require occasional analysis and are study-most effective. We anticipate SAP to alter its information tiering strategy for SAP S/4HANA to consist of Vora.

But as has been the case for SAP HANA, even as those sincere use cases are suitable, SAP HANA Vora is able to lots extra thrilling and differentiating matters.

We are working with customers on such use instances as analyzing large quantities of manufacturing check information in an effort to make higher actual-time packaging decisions, and analyzing health data from linked gadgets in actual-time.

Where Vora is especially interesting is whilst you want to “carry compute to the facts” – running complicated algorithms against in-memory facts.

In addition, a variety of clients will do a directly rip-and-replace of Teradata with HANA and Vora, because it's miles significantly greater price-powerful and an order of significance faster.

SAP HANA Interview Questions
Question 3. Do You Need Sap Hana To Run Vora?

Answer :

Absolutely no longer. Vora is a standalone piece of software program. There are use cases where SAP HANA won’t be mounted alongside Vora, and SAP HANA and Vora run most efficiently on extraordinary varieties of hardware.

That stated, it’s definitely genuine that there are a number of integration situations for HANA and Vora – tiered facts for SAP S/4HANA, and very huge in-reminiscence databases, and SAP will build deep

Question 4. What Is The Availability Of Vora?

Answer :

Vora 1.0 is deliberate to be released to Customers on September 18th, with general availability coming later within the 12 months. Various other pieces of functionality could be available later within the 12 months, just like the automatic records tiering components.

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Question five. Is Sap Vora The Same Product As Sap Hana Vora?

Answer :

Yes

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Question 6. Is There A Cloud Version Of Sap Vora?

Answer :

SAP Vora may be deployed with SAP Cloud Platform Big Data Services. You also can install SAP Vora in production to any cloud infrastructure running one of the supported Hadoop distributions the usage of a bring-your-own-license model. In addition, SAP Vora is available thru AWS Marketplace with network support.

Question 7. What Programming Languages Does Sap Vora Support?

Answer :

SAP Vora supports acquainted programming languages along with SQL, Java, Scala, Python, and C++.

Hadoop Tutorial Database Administration Interview Questions
Question eight. What Are The Major Differences Between The Sap Vora Olap Engine And Other Sql-on-hadoop Solutions Such As Spark Sql, Presto, Impala, And Drill?

Answer :

SAP Vora grants OLAP and SQL on Hadoop by way of improving Spark SQL to provide built-in organization features including hierarchy processing, forex conversions, and a graphical Web-based totally modeling environment for OLAP and drill-down evaluation. In addition, because SAP Vora is an in-reminiscence computing answer, it allows you to gain insights quicker as compared to solutions primarily based on MapReduce or batch processing. And ultimately, SAP Vora gives an integrated framework that combines relational processing with time series, JSON files, and graph processing.

Question 9. What Hadoop Distributions Does Sap Vora Run On?

Answer :

SAP Vora supports primary Hadoop distributions, including Cloudera, Hortonworks, MapR, and SAP Cloud Platform Big Data Services (formerly known as Altiscale Data Cloud).

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Question 10. Does Sap Vora Require Any Proprietary Hardware?

Answer :

No. You can deploy SAP Vora on an current Hadoop set up so long as that installation meets the prerequisites stated within the installation manual for SAP Vora.

Framework7 Tutorial
Question eleven. What Is The Relation-ship Between Sap Vora And Hadoop?

Answer :

SAP Vora runs on Hadoop. It is a computing solution that provides interactive analytics on statistics saved in Hadoop structures. 

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Question 12. What Are The Requirements To Run Vora?

Answer :

That’s all quite technical however in short, Vora will run on pretty much anything. My crew has it running in various clients, on Cloudera, Hortonworks and Amazon EMR Hadoop distributions, and on SUSE, RedHat and Ubuntu Linux. It may also run on Windows and Mac.One of the matters that I like about Vora is that it goes lower back to SAP’s roots of being platform-independent. It has some middle dependencies, for Vora 1.Zero they are – HDFS 2.6, ZooKeeper three.4.6, Spark 1.Four, ProtoBuf 2.6.0, gcc four.7, Apache Ambari and YARN or Spark Standalone cluster management.

This flexibility is essential, because many customers have already made a choice of Linux and Hadoop distributions. Vora runs on all of them.

SAP HANA Interview Questions
Question thirteen. Does Vora Require Hadoop?

Answer :

Vora became designed to run on any distributed report machine, and doesn’t always require Hadoop. We will see within the future what that means, however the critical factor is if another dispensed file gadget becomes famous, Vora can adapt. If you look at what happened within the RDBMS over the past 30 years, SAP’s capability to evolve R/3 to distinct databases became key to its toughness in the marketplace.

Question 14. What Platform Does Vora Run On?

Answer :

Vora runs both in the Cloud and On-premise. SAP’s platform strategy is “Cloud-first”, so it will be to be had within the SAP HANA Cloud Platform (HCP) and Amazon Clouds. Both will provide unmarried-click provisioning of Vora systems without a fuss, a touch later in this yr.

You can of course run Vora On-premise, on any hardware platform, and as cited above, almost any Linux and Hadoop distribution. The best thing to word is that a few Hadoop structures are designed as bloodless records lakes, and Vora is overall performance-centric, so it desires extra spindles-in line with-center and greater reminiscence to run at its high-quality.

Question 15. What Size Does Vora Come In?

Answer :

Vora will run on anything that meets the necessities. For our easy improvement structures we've used Amazon 8GB or 16GB structures, and in a single purchaser we're currently deploying 2000 cores, 20TB of DRAM and 1PB of disk for a HANA/Vora cluster, thanks to Lenovo System X and EMC Isilon.

Hadoop Administration Interview Questions
Question sixteen. What Are The Specific Features Of Vora Vs Apache Spark?

Answer :

Vora is an extension to the Hadoop platform and includes the subsequent features in its first version:

Accelerated In-Memory processing
Compiled Queries
Support for Scala, Python and Java
HANA and Hadoop mash-ups
Hierarchies
Support for HDFS, Parquet and ORC
NUMA attention
The following features are planned within the close to destiny:

Support for C, C++ and R
Currency conversion
Dynamic information tiering
Question 17. Is Vora Based On Sap Hana?

Answer :

No, Vora is a completely new code base, but the engineering crew is the same institution as the HANA engineering crew, so many concepts and ideas have been borrowed from SAP HANA, as you may see by the feature list.

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Question 18. What Are The Different Licensing Options For Sap Vora?

Answer :

SAP Vora gives 3 licensing alternatives to support extraordinary requirements:

Developer version, that's for nonproduction use simplest
Standard and agency variations for manufacturing use;
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Question 19. What Is The Best Way To Get Started With Sap Vora?

Answer :

You can get began with SAP Vora today by using signing up for a check-drive or for the developer edition. 

Question 20. Does Sap Vora Work With Relational Data-bases Other Than Sap Hana?

Answer :

You can use the Spark SQL data source API to get admission to data in different relational databases. Access to SAP Vora from different relational databases can be completed thru the JDBC get admission to layer.

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