Teradata Interview Questions And Answers For Freshers $ Experienced. Here Mindmajix sharing top real-time Teradata questions. These interview questions are prepared by the Teradata experts and asked during many Teradata interviews. We are sure that these Teradata SQL interview questions will help to crack your next interview. Learn Now!
Below mentioned are the Top Frequently asked Teradata Interview Questions and Answers that will help you to prepare for the Teradata interview. Let's have a look into them.
๐ ๐ซ๐๐ช๐ฎ๐๐ง๐ญ๐ฅ๐ฒ ๐๐ฌ๐ค๐๐ ๐๐๐ซ๐๐๐๐ญ๐ ๐๐ง๐ญ๐๐ซ๐ฏ๐ข๐๐ฐ ๐๐ฎ๐๐ฌ๐ญ๐ข๐จ๐ง๐ฌ ๐๐ง๐ ๐๐ง๐ฌ๐ฐ๐๐ซ๐ฌ - [๐๐ฉ๐๐๐ญ๐๐ ๐๐๐๐]
๐๐ก๐๐ญ ๐๐จ ๐ฒ๐จ๐ฎ ๐ค๐ง๐จ๐ฐ ๐๐๐จ๐ฎ๐ญ ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐๐ซ๐ ๐ญ๐ก๐ ๐๐๐๐ญ๐ฎ๐ซ๐๐ฌ ๐จ๐ ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐ข๐ฌ ๐ ๐๐ก๐๐ง๐ง๐๐ฅ ๐๐ซ๐ข๐ฏ๐๐ซ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐ข๐ฌ ๐ ๐๐๐ซ๐ฌ๐ข๐ง๐ ๐๐ง๐ ๐ข๐ง๐ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐ข๐ฌ ๐ญ๐ก๐ ๐๐๐ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐๐ซ๐ ๐ญ๐ก๐ ๐๐จ๐ฆ๐ฉ๐จ๐ง๐๐ง๐ญ๐ฌ ๐จ๐ ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐๐ซ๐ ๐๐จ๐ฎ๐ซ๐ง๐๐ฅ๐ฌ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ฑ๐ฉ๐ฅ๐๐ข๐ง ๐ญ๐ก๐ ๐ฐ๐๐ฒ๐ฌ ๐ญ๐จ ๐๐ซ๐๐๐ญ๐ ๐ ๐ญ๐๐๐ฅ๐ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐ข๐ฌ ๐๐ฉ๐จ๐จ๐ฅ ๐๐ฉ๐๐๐ ๐๐ซ๐ซ๐จ๐ซ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
๐๐ก๐๐ญ ๐๐ซ๐ ๐๐๐ญ๐๐๐๐ฌ๐ ๐๐ซ๐ข๐ฏ๐ข๐ฅ๐๐ ๐๐ฌ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
Top 90 Teradata Interview Questions And Answers
Teradata Interview Questions And Answers - Basic Level
๐) ๐๐ก๐๐ญ ๐๐จ ๐ฒ๐จ๐ฎ ๐ค๐ง๐จ๐ฐ ๐๐๐จ๐ฎ๐ญ ๐๐๐ซ๐๐๐๐ญ๐?
It is basically a relational database management system which is known due to some of its vast and useful features that are best enough to be considered for a number of tasks which are related to the data. It is considered when it comes to driving the datamart, OLAP and data warehouse applications of a business. It is best enough to b considered when it comes to managing the parallel processing of the data simply in no time.
๐) ๐๐ก๐๐ญ ๐ข๐ฌ ๐ญ๐ก๐ ๐ญ๐ซ๐ฎ๐ ๐ฉ๐ฎ๐ซ๐ฉ๐จ๐ฌ๐ ๐จ๐ ๐๐ข๐ฌ๐ฉ๐๐ญ๐๐ก๐๐ซ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐ ๐๐๐๐จ๐ซ๐๐ข๐ง๐ ๐ญ๐จ ๐ฒ๐จ๐ฎ?
Well, it is capable to be considered for performing multiple tasks. However, it is widely considered as best for taking and storing the requests in a queue. It can help storing a very large number of requests in a defined manner. The multiple sets of responses can easily be created after this and the users can save time and efforts both.
๐) ๐๐๐ฆ๐ ๐๐ง๐ฒ ๐ญ๐ฐ๐จ ๐๐จ๐ฆ๐ฆ๐จ๐ง ๐๐๐ ๐ญ๐จ๐จ๐ฅ๐ฌ ๐ญ๐ก๐๐ญ ๐ฒ๐จ๐ฎ ๐๐๐ง ๐ฎ๐ฌ๐ ๐ข๐ง ๐ญ๐ก๐ ๐๐๐ซ๐๐๐๐ญ๐?
The two common ETL tools are Informatica and DataStage.
๐) ๐๐ฌ ๐ข๐ญ ๐ฉ๐จ๐ฌ๐ฌ๐ข๐๐ฅ๐ ๐ญ๐จ ๐๐ฒ๐ฉ๐๐ฌ๐ฌ ๐จ๐ซ ๐ญ๐จ ๐ฌ๐๐ง๐ ๐ญ๐ก๐ ๐๐๐ซ๐๐๐๐ญ๐ ๐ฃ๐จ๐๐ฌ ๐ข๐ง ๐ญ๐ก๐ ๐๐ง๐ข๐ฑ ๐๐ง๐ฏ๐ข๐ซ๐จ๐ง๐ฆ๐๐ง๐ญ ๐ฌ๐ข๐ฆ๐ฉ๐ฅ๐ฒ?
Yes, the same is possible and the users are free to do the same provided some basic conditions are fulfilled by them. This can be done by performing execution in the UNIX.
๐) ๐๐ก๐ฒ ๐ฆ๐๐ง๐๐ ๐ข๐ง๐ ๐ญ๐ก๐ ๐๐๐ญ๐ ๐ข๐ฌ ๐ข๐ฆ๐ฉ๐จ๐ซ๐ญ๐๐ง๐ญ
Well, data is the real source of deriving useful information and without data, many important tasks such as business management, decision making, problem formulation and many other tasks which are useful cannot be accomplished easily. When the same is not managed, there are strong chances that the user will get the errors in all of the above tasks. A well-managed data always enable users to save time and to locate things easily. There are a lot of other reasons as well due to which data management is important.
๐) ๐๐ก๐๐ญ ๐๐ฑ๐๐๐ญ๐ฅ๐ฒ ๐๐จ ๐ฒ๐จ๐ฎ ๐ค๐ง๐จ๐ฐ ๐๐๐จ๐ฎ๐ญ ๐๐๐ญ๐๐ก๐ข๐ง๐ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
It is basically an add-on feature in Teradata which simply let the users share the cache simply with all the applications. This is because it works closely with the source and even let the users mould the outcomes in the manner they are comfortable with. This approach let them save time when the data is complex and have so many errors associated with them.
๐) ๐๐ก๐๐ญ ๐๐๐๐จ๐ซ๐๐ข๐ง๐ ๐ญ๐จ ๐ฒ๐จ๐ฎ ๐๐ซ๐ ๐ญ๐ก๐ ๐๐๐๐ญ๐ฎ๐ซ๐๐ฌ ๐จ๐ ๐๐๐ซ๐๐๐๐ญ๐?
Teradata can manage a large volume of data without facing any glitch
There are very limited factors that can impact its important parameters such as performance
The data can easily be managed even if most of the segments are unstructured
A lot of useful information about the tasks that can be performed can be derived at the same time when data is managed with Teradata
Teradata is an approach that has wide scalability and adaptability
The tasks can be divided among the teams to obtain the true results
It can help to manage bulk data in the shortest possible time
Relational database management can be made superior in every aspect through Teradata
๐) ๐๐ก๐๐ญ ๐๐จ ๐ฒ๐จ๐ฎ ๐ค๐ง๐จ๐ฐ ๐๐๐จ๐ฎ๐ญ ๐ ๐๐ก๐๐ง๐ง๐๐ฅ ๐๐ซ๐ข๐ฏ๐๐ซ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐? ๐๐จ๐ฐ ๐ข๐ญ ๐ข๐ฌ ๐๐ข๐๐๐๐ซ๐๐ง๐ญ ๐๐ซ๐จ๐ฆ ๐๐๐ญ๐๐ฐ๐๐ฒ?
While managing the data and handling other tasks related to it, the users have to make sure that there is effective communication between the applications and the PEโs that are considered. For this, a software called Channel Driver is used. Generally, it acts as a direct link between them and enables clients to share information easily.
Gateways are quite similar to that of Channel driver but the only difference is they enable the communication of PE and applications in case of network clients or for the clients which are attached to the network.
๐) ๐๐๐ฆ๐ ๐๐ง ๐๐ฉ๐ฉ๐ซ๐จ๐๐๐ก ๐ญ๐ก๐๐ญ ๐ฒ๐จ๐ฎ ๐๐๐ง ๐๐ฉ๐ฉ๐ฅ๐ฒ ๐๐๐ฌ๐ข๐ฅ๐ฒ ๐ฐ๐ก๐๐ง ๐ข๐ญ ๐๐จ๐ฆ๐๐ฌ ๐ญ๐จ ๐๐จ๐ง๐ญ๐ซ๐จ๐ฅ๐ฅ๐ข๐ง๐ ๐ญ๐ก๐ ๐ญ๐ซ๐๐๐๐ข๐ ๐ข๐ง ๐๐๐ซ๐๐๐๐ญ๐?
This can be done with the help of a feature called Tpump which is actually a dedicated one for controlling and monitoring the traffic.
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