Here are 30 TensorFlow Extended (TFX) interview questions along with their answers:

1. What is TensorFlow Extended (TFX)?

TensorFlow Extended (TFX) is an end-to-end machine learning platform built on top of TensorFlow. It provides a set of tools and libraries for building, deploying, and maintaining machine learning pipelines at scale.

2. What are the key components of TensorFlow Extended (TFX)?

TFX consists of the following key components:

• Data Validation: Performs data validation and anomaly detection on training and serving data.
• Transform: Applies data transformations and feature engineering to the input data.
• Trainer: Trains machine learning models using TensorFlow.
• Evaluator: Evaluates the trained models and provides feedback.
• Model Analysis: Performs in-depth analysis and visualization of model performance.
• Serving: Deploys trained models for serving predictions.

3. What is the purpose of TFX’s Data Validation component?

The Data Validation component in TFX helps to validate and analyze the training and serving data. It checks for anomalies, inconsistencies, missing values, and statistical properties of the data to ensure its quality and suitability for machine learning.

4. How does the Transform component in TFX work?

The Transform component in TFX performs feature engineering and data preprocessing tasks on the input data. It applies transformations like scaling, normalization, and one-hot encoding to prepare the data for training the machine learning models.

5. What does the Trainer component in TFX do?

The Trainer component in TFX is responsible for training machine learning models using TensorFlow. It takes preprocessed data, applies the defined model architecture, and performs training, evaluation, and model export.

6. What is the role of the Evaluator component in TFX?

The Evaluator component in TFX evaluates the trained models against a set of evaluation data. It computes various metrics, such as accuracy, precision, and recall, and generates feedback on the model’s performance.

7. What does the Model Analysis component in TFX provide?

The Model Analysis component in TFX offers in-depth analysis and visualization of the trained models’ performance. It generates statistics, feature distributions, and visualizations to help understand the model’s behavior and identify potential issues.

8. How does the Serving component in TFX work?

The Serving component in TFX is responsible for deploying trained models for serving predictions. It sets up a scalable and efficient serving infrastructure that can handle incoming requests and provide real-time predictions.

9. What is TensorFlow Data Validation (TFDV)?

TensorFlow Data Validation (TFDV) is a standalone library in TFX that provides functionalities for data analysis, validation, and preprocessing. It can be used independently or as part of TFX to perform data quality checks and transformations.

10. Can TFX be used with other machine learning frameworks apart from TensorFlow?

While TFX is primarily built on top of TensorFlow, it can also be integrated with other machine learning frameworks through custom components. TFX provides extensibility to incorporate different frameworks and tools based on specific requirements.

11. How does TFX handle continuous training and deployment of machine learning models?

TFX supports continuous training and deployment by providing automation and orchestration capabilities. It can be integrated with data pipelines, version control systems, and CI/CD processes to enable automated training, evaluation, and deployment of models whenever new data arrives or changes occur.

12. What is the purpose of the TFX metadata store?

The TFX metadata store is a centralized repository that stores metadata about the different components, such as training data, model versions, and pipeline execution information. It helps in tracking and managing the lifecycle of machine learning pipelines.

13. What Do You Know About TensorFlow Managers?

The TensorFlow managers are responsible for loading, unloading, lookup, and lifetime management of all servable objects via their loaders. TensorFlow Managers control the full lifecycle of Servables, including:

• Loading Servables
• Serving Servables
• Unloading Servables

14. What Are TensorFlow Servables? Also, Explain TensorFlow Serving.

The clients use some objects to perform the computations, and these objects are known as Servables. The size of the servable is flexible. A single servable might contain anything from a lookup table to a single model to a tuple of inference models. These observables are the central rudimentary units in TensorFlow Serving.

TensorFlow Serving is designed for production environments. It is a flexible, high-performance serving system used for machine learning models. TensorFlow Serving easily deploys new algorithms and experiments while keeping the same server architecture and APIs. TensorFlow Serving provides out-of-the-box integration with TensorFlow models. It can also be easily extended to serve other types of models and data whenever required.

15. What Are The Use Cases Of TensorFlow?

TensorFlow is an essential tool for deep learning. It has mainly five use cases, they are:

• Text-Based Applications
• Voice/Sound Recognition
• Time Series
• Image Recognition
• Video Detection

16. Where Can You Run A TensorFlow?

TensorFlow can run on different platforms:

• Operating Systems such as Windows, OS, and Linux
• Cloud Web Service
• Mobile OS like IOS and Android

17. When Will You Find Overfit Condition Of A Model In TensorFlow?

There are variations in the training data, and this data needs to be verified through TensorFlow. Overfitting can be probably seen if the variations are huge in the data. The best possible solution is to remove the noise from the available data up to the possible extent.

18. What Are The Loaders Of TensorFlow?

The loader can be implemented to load, unload, and access a new type of servable machine-learning model. These loaders are used for adding algorithms and data on the backend. The function load() is used to load the model from the saved model.

19. List Some Products That Are Built Using TensorFlow.

There are a few products built using TensorFlow:

• Nsynth
• Giorgio Cam
• Hand Writing Recognition
• Teachable Machine

20. What Are The Sources In TensorFlow?

Sources are the type of modules that identify and provide services. Each source provides zero or many servable streams. A single loader is supplied for each servable version making it accessible so that it can be loaded.

21. What are the activation functions?

The function which imparts the non-linear property to the output of the summation function is the activation function. The expected output represents the probability hence it restrains the value between 0 and 1.

22. What are loaders?

It manages the life cycle of servable. The loader API enables an infrastructure that is independent of data or product use cases and algorithms. Then we standardize the loader’s API for loading and unloading of servable.

23. Which Dashboards are supported by TensorFlow?

TensorFlow supports the following Dashboards:

• Scalar Dashboard
• Histogram Dashboard
• Distributor Dashboard
• Image Dashboard
• Projector
• Graph Explorer
• Audio Dashboard
• Text Dashboard

24. How deep learning and TensorFlow are related?

Deep learning is the class of machine learning which uses neural networks for its work. Hence it is also known as neural networks. TensorFlow is used for the implementation of deep learning.

Deep learning allows the system to learn the working of a system with the help of neural networks. TensorFlow helps to build such networks.

25. Explain the graph. What does these terms represent: operations and tensors?

All the complex computations in TensorFlow are implemented using graphs. Graphs are the collection of operations represented using nodes. The graph consists of nodes and edges connecting nodes.
Operations: The nodes in the graph represent operations.
Tensors: The edges in the graph represent the edges that carry weight with them.

26. What are the vectors in TensorFlow?

A group of values is represented as arrays. Each value has an index representation and allows each point to be individually identified through its index position. Vectors have a magnitude and a direction.

27. What are the scalars in TensorFlow?

A scalar represents a single value, which cannot be denoted as space, i.e, it does not have directions. An entity such as temperature is a scalar.

28. Explain the term TensorFlow API.

TensorFlow has many APIs which are used for the implementation and execution of it. TensorFlow supports the following APIs:

• Python
• JavaScript
• C++
• Java
• Go
• Swift (Early Release)
• R
• Ruby
• C#

29. What is the ReLU layer?

Rectified Linear Unit Layer acts as an activation layer that activates the function having a value above a specific unit. It replaces the negative values in an image with zero, defining a linear relationship of the variable with the input. It makes the input invariant to noise; hence it is known as subsampling.

30. What is the Pooling layer?

The reduction in the size of an image takes place when data runs through the pooling layer. It aims at targeting the sections individually. It either finds the maximum value or an average of a section to reduce the size. This process is known as down-sampling.