Answer:
The correct answer is d) All of these are correct.
Explanation:
ETL stands for Extract, Transform and Load. An ETL system extracts data from the sources, enforces data quality and consistency standards, conforms data so that separated and maybe unrelated sources can be used together, and as a final step delivers data in presentation-ready formats so that developers can build applications and end users can take decisions.
Answer: D)The pattern of blood vessels at the back of the eye.
Explanation: The retinal scan is the techniques which is used in the bio-metric mechanism.The scanning of the retina's blood vessel pattern is capture by the scanner is the unique technique which is used for bio-metric purpose.
Blood vessel pattern is capture because it is present in unique form for every person and will help in distinguishing a person from another person while scanning.
Other options are incorrect because light reflection or reaching near retina and light pattern are not the unique way for identification while scanning a person.Thus the correct option is option(D).
A DNS record <span>is responsible for resolving an IP to a domain name.
</span>The term DNS record denotes a database record, stored on DNS servers used to map a URL to an IP address.
The process is the following: the URL is entered and searched in the browser, that URL is forwarded to the DNS servers and then directed to the specific Web server<span>.</span>
A) <span>unauthorized duplication of software </span>
