array creation routines

Qus. 1 : What is the purpose of zeros() function used in NumPy array ?

1. To make a Matrix with all diagonal element 0
2. To make a Matrix with first row 0
3. To make a Matrix with all elements 0
4. None of the above

Qus. 2 : <p>What will be the output of the following ?</p><pre><span style="font-size: 14px;">import numpy as np<br></span><span style="font-size: 14px;">a = np.arange(1,5,2)<br></span><span style="font-size: 14px;">print(a)</span></pre>

1. [1 3 5]
2. [1 3]
3. [1,3]
4. [1,2,3,4,5]

Qus. 3 : <p>What will be the output of the following ?</p><pre><span style="font-size: 14px;">import numpy as np<br></span><span style="font-size: 14px;">a = np.arange(5,1)<br></span><span style="font-size: 14px;">print(a)</span></pre>

1. [ ]
2. [1 2 3 4 5]
3. [5 4 3 2 1]
4. [1 2 3 4]

Qus. 4 : <p>What will be the output of the following ?</p><pre>import numpy as np<br>a=np.array([2,4,1])<br>b=a<br>a[1]=3<br>print(b)</pre><div><br></div>

1. [2 4 1]
2. [3 4 1]
3. [2 3 1]
4. [2 4 3]

Qus. 5 : What is a correct method to split arrays?

1. array_split()
2. split()
3. split_array()
4. hstack() and vstack()

Qus. 6 : Regarding creating ndarray, choose the build in functions in numpy.

1. np.array()
2. np.zeros()
3. np.empty()
4. All of the above

Qus. 7 : What is zeros() function in numpy use to?

1. make a matrix with first column 0
2. make a matrix with all elements 0
3. make a matrix with diagonal elements 0
4. All of the above

Qus. 8 : empty( ) function used to create a NumPy array which contained the values

1. Filled with Zero
2. Filled with Blank space
3. Filled with random garbage value
4. Filled with One

Qus. 9 : <p>what will be output for the following code?</p><pre>import numpy as np<br>a=np.array([1,2,3,5,8])<br>print(a.ndim)</pre><div><br></div>

1. 0
2. 1
3. 2
4. 3

Qus. 10 : Which of the following argument we need to pass in reshape function.

1. Shape
2. Array
3. both a) and b)
4. None of the above.

Qus. 11 : Which of the following returns an array of ones with the same shape and type as a given array?

1. all_like
2. ones_like
3. one_alike
4. all of the mentioned

Programs

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