Top Teradata Interview Questions-2020
Tags: datascience, teradata, analytics
Published: 2020-07-10 05:46:17

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.

𝐅𝐫𝐞𝐪𝐮𝐞𝐧𝐭𝐥𝐲 𝐀𝐬𝐤𝐞𝐝 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐀𝐧𝐬𝐰𝐞𝐫𝐬 - [𝐔𝐩𝐝𝐚𝐭𝐞𝐝 𝟐𝟎𝟐𝟎]

𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐚𝐛𝐨𝐮𝐭 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐨𝐟 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐚 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 𝐝𝐫𝐢𝐯𝐞𝐫 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐚 𝐏𝐚𝐫𝐬𝐢𝐧𝐠 𝐞𝐧𝐠𝐢𝐧𝐞 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐭𝐡𝐞 𝐏𝐏𝐈 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 𝐨𝐟 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐉𝐨𝐮𝐫𝐧𝐚𝐥𝐬 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐰𝐚𝐲𝐬 𝐭𝐨 𝐜𝐫𝐞𝐚𝐭𝐞 𝐚 𝐭𝐚𝐛𝐥𝐞 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐒𝐩𝐨𝐨𝐥 𝐒𝐩𝐚𝐜𝐞 𝐄𝐫𝐫𝐨𝐫 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚? 

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐏𝐫𝐢𝐯𝐢𝐥𝐞𝐠𝐞𝐬 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

Top 90 Teradata Interview Questions And Answers

Teradata Interview Questions And Answers - Basic Level


𝐐) 𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐚𝐛𝐨𝐮𝐭 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

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. 

𝐐) 𝐖𝐡𝐚𝐭 𝐢𝐬 𝐭𝐡𝐞 𝐭𝐫𝐮𝐞 𝐩𝐮𝐫𝐩𝐨𝐬𝐞 𝐨𝐟 𝐃𝐢𝐬𝐩𝐚𝐭𝐜𝐡𝐞𝐫 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚 𝐚𝐜𝐜𝐨𝐫𝐝𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮?
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.

𝐐) 𝐍𝐚𝐦𝐞 𝐚𝐧𝐲 𝐭𝐰𝐨 𝐜𝐨𝐦𝐦𝐨𝐧 𝐄𝐓𝐋 𝐭𝐨𝐨𝐥𝐬 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐮𝐬𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?
The two common ETL tools are Informatica and DataStage.

𝐐) 𝐈𝐬 𝐢𝐭 𝐩𝐨𝐬𝐬𝐢𝐛𝐥𝐞 𝐭𝐨 𝐛𝐲𝐩𝐚𝐬𝐬 𝐨𝐫 𝐭𝐨 𝐬𝐞𝐧𝐝 𝐭𝐡𝐞 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚 𝐣𝐨𝐛𝐬 𝐢𝐧 𝐭𝐡𝐞 𝐔𝐧𝐢𝐱 𝐄𝐧𝐯𝐢𝐫𝐨𝐧𝐦𝐞𝐧𝐭 𝐬𝐢𝐦𝐩𝐥𝐲?

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.

𝐐) 𝐖𝐡𝐲 𝐦𝐚𝐧𝐚𝐠𝐢𝐧𝐠 𝐭𝐡𝐞 𝐝𝐚𝐭𝐚 𝐢𝐬 𝐢𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐭

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.

𝐐) 𝐖𝐡𝐚𝐭 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐝𝐨 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐚𝐛𝐨𝐮𝐭 𝐂𝐚𝐭𝐜𝐡𝐢𝐧𝐠 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

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.

𝐐) 𝐖𝐡𝐚𝐭 𝐚𝐜𝐜𝐨𝐫𝐝𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐨𝐟 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

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

𝐐) 𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐚𝐛𝐨𝐮𝐭 𝐚 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 𝐝𝐫𝐢𝐯𝐞𝐫 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚? 𝐇𝐨𝐰 𝐢𝐭 𝐢𝐬 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐟𝐫𝐨𝐦 𝐆𝐚𝐭𝐞𝐰𝐚𝐲?

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 PE’s 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. 

𝐐) 𝐍𝐚𝐦𝐞 𝐚𝐧 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐚𝐩𝐩𝐥𝐲 𝐞𝐚𝐬𝐢𝐥𝐲 𝐰𝐡𝐞𝐧 𝐢𝐭 𝐜𝐨𝐦𝐞𝐬 𝐭𝐨 𝐜𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐢𝐧𝐠 𝐭𝐡𝐞 𝐭𝐫𝐚𝐟𝐟𝐢𝐜 𝐢𝐧 𝐓𝐞𝐫𝐚𝐝𝐚𝐭𝐚?

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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