What is the main function of the Control Unit in a CPU?

• To perform arithmetic operations

• To store data

• To direct the operation of the processor

• To manage input and output devices

List a is defined as follows:

a = [1, 2, 3, 4, 5]

Select all of the following statements that remove the middle element 3 from a so that it equals [1, 2, 4, 5]:

• a[2:3] = []

• a[2] = []

• a[2:2] = []

What does the ALU stand for?

• Arithmetic Logic Unit

• Advanced Logic Unit

• Analog Logic Unit

• Arithmetic Language Unit

What is the primary purpose of cache memory?

• To store permanent data

• To provide fast access to frequently used data

• To manage input and output operations

• To execute machine language instructions

Which component of a computer holds both data and instructions in a von Neumann architecture?

• Input Unit

• Arithmetic Logic Unit

• Memory Unit

• Control Unit

List a is defined as follows:

a = ['a', 'b', 'c']

Which of the following statements adds 'd' and 'e' to the end of a, so that it then equals ['a', 'b', 'c', 'd', 'e']:

• 
  

  a[-1:] = ['d', 'e']

• a += ['d', 'e']

• a.append(['d', 'e'])

Assume x and y are assigned as follows:

x = 5

y = -5

What is the effect of this statement:

x, y = (y, x)[::-1]

• The values of x and y are swapped

• Both x and y are -5

  
  

• The values of x and y are unchanged

• Both x and y are 5

  
  

What is the main characteristic of the von Neumann architecture?

• Multiple processors for parallel processing

• Unified memory for data and instructions

• Separate units for processing and storage

• Use of only physical devices

How can a single element tuple be created in Python?

• (20,)

• (20, 20, 20)

• (20)

• (20, 20)

What does the acronym GPU stand for?

• Global Processing Unit

• Graphical Performance Unit

• Graphics Processing Unit

• General Processing Unit