CSP Unit 1 Review

Which is the correct binary number to represent 46?

• 00101110

• 00011111

• 01000100

• 00110000

In computing, a bit is

• 8 bytes
• a single    0 or 1     on or off

What are the only two numbers you can use in binary?

• 0 and 1
• 1 and 2
• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 1, 2, 4, 8, 16

  a data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data.

• Digital Compression

• Limitless Compression

• Lossless Compression

• Lossy Compression

Which of these is the correct sequence for the place values for binary numbers?

• 1, 2, 4, 8, 16, 32, 64, 128
• 1, 2, 4, 6, 8, 10, 12, 14, 16
• 1, 2, 3, 4, 5, 6, 7, 8
• 0, 1

Looking at the value of each column

what is this binary number worth ?

• 2

• 4

• 6

• 8

While developing a program, you find a similar project that someone has created and posted online. It contains a number of elements (e.g., images, music, code segments, etc.) that you would like to integrate into your own project. Under what conditions may you reuse these elements in your work?

• You may never reuse someone else’s work.

• You may reuse any elements that are posted publicly online as long as credit is given to their creator.

• You may only reuse elements for which the original owner has granted a license to reuse, such as the Creative Commons Share Alike license.

• You may always reuse anything that is posted publicly or privately online.

Looking at the value of each column

what is this binary number worth ?

• 64

• 1

• 65

• 8

1111 1111

• 128

• 255

• 256

• 127

ASCII is a character-encoding scheme that uses a numeric value to represent each character. For example, the uppercase letter “G” is represented by the decimal (base 10) value 71. A partial list of characters and their corresponding ASCII values are shown in the table above.

ASCII characters can also be represented by binary numbers. According to ASCII character encoding, which of the following letters is represented by the binary (base 2) number 1010100?

• N

• P

• T

• W