Find the odd numeral pair in each of the following

Which data mining technique is used to find patterns or associations in big datasets, such as market basket analysis?

"Parity bits" are used for which of the following purposes?

In red-black tree, if the parent node is red, colour of child nodes will be?

What is Hadoop's primary function in big data processing?

Which layer of the OSI model is responsible for establishing, managing, and terminating connections between applications?

What is blockchain?

In which network topology does each node have a direct connection to every other node?

Which is not a datatype of COBOL language

What consensus mechanism is used by the Bitcoin blockchain?

What is the purpose of the "self" parameter in a Python class method?