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Free TDBL1-16.00 Exam Braindumps (page: 5)

Page 4 of 16
PDF with 100 Questions

In adata warehouse architecture, a Data Lake would serve which purpose?

  1. Run customer reports
  2. Store raw data at scale
  3. Provide cloud services
  4. Perform business intelligence

Answer(s): B

Explanation:

In a data warehouse architecture, a Data Lake is a large-scale storage repository that holds raw data in its native format until it is needed. It is used to store large volumes of unstructured and semi-structured data, such as log files, sensor data, and social media data. The purpose of a Data Lake is to provide a centralized repository for storing all types of data and making it accessible for analysis.



What does a Teradata node provide?

  1. Computing power
  2. Communication
  3. Data storage
  4. Vproc migration

Answer(s): A,B,C

Explanation:

A Teradata node is a physical server that provides computing power, communication, and data storage. It consists of one or more virtual processors (Vprocs) and disk arrays, and is designed to operate as part of a Teradata system. A node is responsible for processing SQL requests, storing data, and communicating with other nodes in the system.



Which concept does a dimensional model implement to improve performance?

  1. Denormalization
  2. Row sizing
  3. Global access
  4. Parallelization

Answer(s): A

Explanation:

A dimensional model is a data modeling technique used in data warehousing that organizes data into a set of related tables called dimensions and fact tables. The purpose of a dimensional model is to improve performance by implementing denormalization, which reduces the number of tables and joins needed to query the data. This allows for faster query performance, easier maintenance, and improved scalability.



What is a method to gain Teradata system access?

  1. Encryption services
  2. Profile Query Bands
  3. External authentication
  4. Final-tier application

Answer(s): C

Explanation:

External authentication is a method of gaining access to a Teradata system where the authentication process is handled by an external service, such as LDAP, Kerberos, or Active Directory. The external service validates the user's credentials, and then passes the authentication token to Teradata to grant system access.






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