Big Data Analytics Quiz

1. What is the function of the Hive metastore?

• A) Storing intermediate data

• B) Storing user session data

• C) Storing metadata

• D) Storing log data

Pig operations that transform datasets are called

• transformations
• modifications
• alterations
• manipulations

What is the main purpose of the backpropagation algorithm in neural networks?

• To randomly initialize the weights of the network
• To update the weights of the network by calculating the gradient of the loss function with respect to each weight.
• To calculate the mean of the input data
• To determine the activation function of the network

What is 'dropout' in the context of training deep neural networks?

• Approach to reduce the batch size in training deep neural networks.
• Regularization technique used to prevent overfitting by randomly ignoring neurons during training.
• Method to adjust the number of layers in a neural network.
• Technique used to increase the learning rate during training.

In deep learning, what is a 'convolution'?

• A programming language
• A type of fruit
• A mathematical operation that modifies the shape of one function based on another function.
• A dance move

What role does the softmax function play in a neural network?

• It calculates the loss function
• It initializes the weights of the neural network
• It determines the learning rate
• It converts raw output scores into probabilities.

What is Apache Pig's primary language called?

• Pig Latin

• HQL

• Java

• Python

What unique Pig feature helps with complex data manipulations?

• SQL support

• User-defined functions

• In-memory processing

• Schema on read

Which SQL-like language does Hive use?

• HiveQL

• Pig Latin

• Java Query Language

• Spark SQL

Which file format provides high compression and fast data retrieval in Hadoop ecosystem?

• Text file

• JSON

• Parquet

• CSV