Round 1 set 2

Another name of data fishing is?

• Data merging

• Data dredging

• Data bagging

• None of the above

What is called when a function is defined inside a class?

• Module

• Class

• Another Function

• Method

Which data structure is needed to convert infix notation to postfix notation?

• Tree

• Branch

• Stack

• Queue

Which SQL keyword is used to retrieve data from a database?

• SELECT

• FROM

• WHERE

• JOIN

Which of the following is not a supervised learning

• PCA

• Naive Bayesian

• Linear regression

• Decision Tree

Which of the following sorting algorithms provide the best time complexity in the worst-case scenario?

• Merge Sort

• Quick Sort

• Bubble Sort

• Selection Sort

An interface with no fields or methods is known as a ______.

• Runnable Interface

• Marker Interface

• Abstract Interface

• CharSequence Interface

K- means clustering is a which type of machine learning algorithm?

• Semi-supervised Machine learning

• Unsupervised Machine learning

• Supervised Machine learning

• Reinforcement Machine learning

An operating system is ____ which performs the entire basic task like file management, process management, etc.

• Software

• Program

• Process

• Thread

____ Address is an actual location in main memory whereas ____address is a reference to a memory location.

• Absolute address and physical address

• Physical address and virtual address

• Virtual address and logical address

• None of the above.