Tera Data Interview Questions and Answers
Question - 61 : - What exactly do you know about Catching in Teradata?
Answer - 61 : -
It is basically an add-on feature in Teradata which simply lets the users share the cache simply with all the applications. This is because it works closely with the source and even lets the users mold the outcomes in the manner they are comfortable with. This approach lets them save time when the data is complex and has so many errors associated with them.
Question - 62 : - What are the features of Teradata?
Answer - 62 : -
- 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
Question - 63 : - What do you know about a Channel driver in Teradata? How it is different from Gateway?
Answer - 63 : -
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 the case of network clients or for the clients who are attached to the network.
Question - 64 : - Name an approach that you can apply easily when it comes to controlling the traffic in Teradata?
Answer - 64 : -
This can be done with the help of a feature called Tpump which is actually a dedicated one for controlling and monitoring the traffic.
Question - 65 : - Tell something about the Virtual Disk?
Answer - 65 : -
It is actually a general compilation of a large group of cylinders that are nothing but disks. The users also call it the Disk Array. It is done to assure that in case of an emergency, the loss to the data is minimum as the same is already divided into the segments. It is possible to create backups and the users are therefore free to derive the outcomes accordingly.
Question - 66 : - What are the characteristics of Teradata which you are familiar with and how do you think they can help to get the desired outcomes.
Answer - 66 : -
- One of the best things about his approach is users are free to simply keep up the pace when it comes to running it on single, and on multi-nodes.
- The users are able to make it act just like a server and without doing much
- There are dedicated features of maintaining parallel processing in this technology
- When it comes to working with ANSI, it is largely compatible and the users are free to get the results
- It is actually a useful approach that can easily be clubbed with a different database management system for data migration
Question - 67 : - How can data be saved in case of a node failure?
Answer - 67 : -
While using Teradata, the users are free to take advantage of a supreme feature for this. All the Vprocs are set to automatically move to the parallel nodes from the one that gets fails and thus, the data can easily be recovered without making complex efforts.
Question - 68 : - Tell something about the Parallel Data Extension in Teradata?
Answer - 68 : -
Parallel Data Extension is actually an interface layer that is responsible for operating the data in a parallel mode. In most cases, the volume of the data really doesn’t matter and the users are free to generate outcomes that are simply the best. This layer is present above the Operation system layer.
Question - 69 : - In Teradata, why the multi-load support NUSI rather than USI?
Answer - 69 : -
In Teradata, all the AMP are allowed to operate separately and they cannot be clubbed with USI especially when multi operations are executed at the same time. NUSI is a better approach that can easily be clubbed and a lot of time can be saved.
Question - 70 : - What is the limit of assigning the gateway to the node in the Teradata?
Answer - 70 : -
In complex applications, there is no such limit on how one Gateway is assigned per node during general use.