Concepts and Terminology Review

Which of the following is the correct binary representation of the number 22?

• 11000

• 10111

• 10110

• 10101

Given the numerical value 1010101.71, which of the following number systems is MOST likely represented?

• Octal

• Binary

• Hexadecimal

• Decimal

Which of the following is the binary number equivalent of the hexadecimal number F5C8?

• 1010010011000001

• 1111101011001000

• 1101001111011001

• 110000110100100

Which of the following notational systems is MOST likely used to represent a MAC address?

• Decimal

• Octal

• Hexadecimal

• Binary

April, a programmer, wants to convert the binary number 1111001101011011 to a hexadecimal number. What is the recommended first step to perform this conversion manually?

• Break up the binary number into chunks of two digits.

• Break up the binary number into chunks of four digits.

• Find the hex value for each chunk of binary digits.

• Convert the binary number to a decimal number.

A network engineer needs to convert the binary number 11011011011011011 to a hexadecimal number. Which of the following is the correct hexadecimal number?

• D3C9

• C9D3

• D3B9

• D9B3

A network host has an IPv4 address of 192.168.12.155. Which of the following notational systems is used to represent this IP address?

• Octal

• Hexadecimal

• Binary

• Decimal

Which power of 10 does 6 in the above example represent?

• 10 to the third power

• 10 to the second power

• 10 to the zero power

• 10 to the first power

Which of the following Unicode character encoding standards is MOST commonly used for building web pages?

• UTF-32

• UTF-16

• UTF-64

• UTF-8

Which of the following encoding schemes would MOST likely be used to represent an emoji?

• Binary

• Unicode

• ASCII

• Hexadecimal