Huawei HCIA AI AI ILearning Certification Final Exam Answers Written

Operations and computation graphs of TensorFlow can be run without a session. Answer: False

A matrix A can be decomposed into a product of three matrices using singular value decomposition. Answer: True

Deep learning algorithms can be both supervised and unsupervised. Answer: True

The print function in Python 3 is enclosed in parentheses (()). Answer: True

In TensorFlow, a graph contains nodes and edges. The former represent data operations and the later represent data and its dependency. Answer: True

The perception is equivalent to a classifier and it could perform multi-task classification. Answer: False

Data in TensorFlow is represented by tensors. Answer: True

Functions are organized code segments which cannot be reused to implement single or related operations. Answer: False

Python tuples are enclosed in parentheses (()) and the internal elements are separated by semicolons (;). Answer: False

Matrix A and Matrix B can be added only if they have the same number of rows and columns. Answer: True

The determinant of a N*N matrix is a scalar. Answer: True

Deep learning is a class of machine learning algorithms that uses neural networks to extract features from the raw input. Answer: True

Huawei believes that the value of AI is reflected in addressing enterprise business problems. Regarding the development of AI, guided by industry solutions, Huawei focuses on basic technologies and the enabling platform, and works with industry leaders to develop industry solutions. Answer: True

The Python author designed the restrictive syntax to filter out bad programming habits (like failing to add an Indentation on the right of the next line of the if statement). Answer: True

Convolutional neural networks (CNNs) can extract features from images automatically. Answer: True

Continue statements in Python are used to skip the rest of the statements in the body of loop for the current iteration and jump to the beginning of the loop for next iteration. Answer: True

Lists in Python can be delimited by square brackets ([ ]), with the first element at index 0. Answer: True

time.time() function can measure the number of seconds since the epoch as a floating point value. Answer: True

Principal Component Analysis (PCA) is a statistical method. It uses orthogonal transformation to convert a set of possibly correlated variables into a set of values of linear variables called principal components. Answer: False

Recurrent neural networks are more suitable for image recognition problems. Answer: False

Which of the following can be the input of a fully connected layer? Answer: B. A fixed-length vector

If the input of a softmax function is [1,2,4,2,1], which of the following option may be the output? Answer: C. [0.04, 0.10, 0.72, 0.10, 0.04]

Decision tree is one of the most popular machine learning algorithms and can be used for both classification and regression problems. How do we choose the best attribute in ID3? Answer: C. The attribute with the highest information gain

Information theory is a branch of applied mathematics. It studies the quantification of information in a signal. Who was the first to put forward the concept of information entropy? Answer: A. Claude Elwood Shannon

Which is not an optimization method in deep learning? Answer: C. Principle component analysis (PCA)

Which of the following Python identifier is invalid? Answer: D. 1var

What is the purpose of adding a pooling layer when creating a neural network? Answer: D. Reduce the size of feature maps

Which of the following format can define a dictionary in Python? Answer: C. (“Jane”:London, ”John”:London)

Which of the following type of RNN can be used for machine translation? Answer: D. Many to many

Which of the following activation functions cannot effectively solve the vanishing gradient problem? Answer: A. Tanh

Which of the following statements about normal distribution is not true? Answer: C. The larger the standard deviation, the steeper the normal distribution curve.

Which is not an automatic hyperparameter search algorithm? Answer: B. Stochastic gradient descent

Which of the following about matrix is not true? Answer: C. The diagonal matrix does not have an inverse.

Which of the following is not a supervised learning algorithm? Answer: B. Principle component analysis (PCA)

Which of the following can avoid overfitting during model training? Answer: D. Early stoping

Which of the following is unchangeable in Python? Answer: A. Tuple

Which of the following is not a deep learning development framework? Answer: D. BAFA

Which of the following is not a Python re regular expression module function? Answer: B. update

Which of the following methods cannot get data into the TensorFlow program? Answer: C. Editing a file format reader

Which of the following is not a TensorFlow library module? Answer: C. tf.boost

With regard to the relationship between frequency and probability, which of the following statements is true? Answer: A. Frequency stabilizes as a value close to probability as the number of repeated experiments increases.

Which of the following statement about convolutional neural networks(CNNs) is not true? Answer: B. A pooling layer contains a set of filters whose parameters need to be learned.

Which of the following is used as the gate function is LSTM? Answer: C. Sigmoid function

Which of the following can be used to solve regression problems? Answer: A. Linear regression

For object detection problems, which of the following neural network model should be considered first? Answer: A. CNN

Which of the following school does reinforcement learning belong to? Answer: D. Behaviorism

Which of the following is the computational model of TensorFlow? Answer: D. Computational graph

Which of the following is not a TensorFlow session? Answer: A. Multiple POST queries

Which of the following statement about the fetch operation in TensorFlow is true? Answer: A. Only when the graph execution is triggered, you can fetch the tensor values you want.

When was “AI” first proposed? Answer: B. 1956

Which of the following cloud services are provided by visual recognition of Huawei Cloud EI? Answer: ABCD A. B. C. D.

Image recognition Content moderation Optical character recognition (OCR) Image processing

What are the commonly used activation functions? Answer: ACD A. relu C. sigmoid D. tanh

According to constraints, what are the types of the optimization problem? Answer: ABC A. Equality constraint B. No constraint C. Inequality constraint

Which of the following statements about Python index are true? Answer: BD B. Default index from right to left is numbered from -1 D. Default index from left to right is numbered from 0

Which of the following statements about Python are true? Answer: ABCD A. Python is often nicknamed “glue language” because it can easily glue together various modules developed in other languages. B. Python is a kind of free and open-source software. C. The Python syntax is simple and clear, characterized by using blank characters for indentation D. It was created by Guido van Rossum, the Dutchman, in 1989, and it was first released in 1991.

What are the research areas in AI? Answer: ABCD A. B. C. D.

Computer vision Speech recognition Natural language processing (NLP) Machine learning

Python is an object-oriented programming language. Which of the following are Python objects? Answer: ABCD A. B. C. D.

Character string Number Module Function

Which of the neural network architectures can implement weight sharing? Answer: BD B. Recurrent neural network (RNN) D. Convolutional neural network (CNN)

What are the implementation modes of TensorFlow? Answer: BD B. Distributed mode D. Single-Node mode

Suppose X and Y are random variables and C is a constant, which of the following about the variance properties is not true? Answer: BD B. D(XY) = D(X)D(Y) D. D(X+Y) = D(X) + D(Y)