CSE 180 EVALUATION EXAM 2026 QUESTIONS AND
ANSWERS GRADED A+
✔✔In HTML, text and background are limited to 16 colors. - ✔✔False
There are potentially millions of colors that can be used.
✔✔Using even parity, a normal byte, for example, 1010 0011, would: - ✔✔include a
ninth bit set to 0
Parity refers to whether a number is even or odd. To encode bytes using even parity,
we use the normal byte encoding, for example, 1010 0011, then we check the number
of 1's in the code, since it has even number of 1's, we set the ninth bit to 0.
✔✔Binary number 1101 is equivalent to decimal number ____. - ✔✔13
To convert 1101 to decimal number, we have 2^3 + 2^2 + 2^0 = 13. (^: to the power of)
✔✔The Hawaiian alphabet has 18 symbols. How many bits are needed to represent just
these symbols? - ✔✔5
Five bits is enough since 2^5 = 32.
✔✔How many bits are needed to represent a space in ASCII? - ✔✔8 bits
Extended ASCII use 8 bits to represent letters, punctuation characters, etc.
✔✔Four bytes is the same as: - ✔✔32 bits
A byte is eight bits so four bytes is 32 bits
✔✔The Digital Versatile Disc (DVD): - ✔✔uses bumps (which appear as pits on the
bottom side) to encode the information.
✔✔What does ASCII stand for? - ✔✔American Standard Code for Information
Interchange
✔✔Which letter is used to represent decimal number 12 in the hexidecimal numbering
system? - ✔✔C
The digits of the hexidecimal numbering system are 0, 1,...,9, A, B, C, D, E, F.
Representing decimal number 0 ~ 15.
✔✔How many bits does each hexadecimal digit (symbol) require? - ✔✔4
, Each hexadecimal digit needs 4 bits.
✔✔The PandA system: - ✔✔is binary
PandA stands for "presence and absence", the two fundamental patterns of binary
information.
✔✔Which of the following file is an image file type? - ✔✔JPG
See the media file reading.
✔✔MP3 is popular for Internet transmission because it yields higher quality even though
this also requires higher bandwidth requirements - ✔✔False
It is popular because its compression ration is more than 10:1, make the music file's
size smaller and easier to transmit in Internet.
✔✔Which of the following is NOT a creative effect that can be produced by using
image-editing software? - ✔✔hologram
✔✔Which of the following statements about image-editing software is FALSE? - ✔✔It
can be used to animate the images.
✔✔Pictures can be transferred from a camera to a computer using - ✔✔a USB port, a
FireWire port, or a Bluetooth connection
✔✔Optical character recognition (OCR) used for reading license plates: - ✔✔all of the
above.
✔✔When cropping an image, the cropping handle should be dragged _________ to
eliminate the unwanted part of the picture. - ✔✔inward
✔✔GIF encoding - ✔✔is a lossless encoding scheme
✔✔Which tool allows you to remove part of a photo? - ✔✔Crop
✔✔Which of the following is NOT a basic tool available with image-editing software? -
✔✔automatic updating tool
✔✔In a photo, brightness is determined by - ✔✔how close the pixels are to white
✔✔Which of the following is an audio file type? - ✔✔MP3
ANSWERS GRADED A+
✔✔In HTML, text and background are limited to 16 colors. - ✔✔False
There are potentially millions of colors that can be used.
✔✔Using even parity, a normal byte, for example, 1010 0011, would: - ✔✔include a
ninth bit set to 0
Parity refers to whether a number is even or odd. To encode bytes using even parity,
we use the normal byte encoding, for example, 1010 0011, then we check the number
of 1's in the code, since it has even number of 1's, we set the ninth bit to 0.
✔✔Binary number 1101 is equivalent to decimal number ____. - ✔✔13
To convert 1101 to decimal number, we have 2^3 + 2^2 + 2^0 = 13. (^: to the power of)
✔✔The Hawaiian alphabet has 18 symbols. How many bits are needed to represent just
these symbols? - ✔✔5
Five bits is enough since 2^5 = 32.
✔✔How many bits are needed to represent a space in ASCII? - ✔✔8 bits
Extended ASCII use 8 bits to represent letters, punctuation characters, etc.
✔✔Four bytes is the same as: - ✔✔32 bits
A byte is eight bits so four bytes is 32 bits
✔✔The Digital Versatile Disc (DVD): - ✔✔uses bumps (which appear as pits on the
bottom side) to encode the information.
✔✔What does ASCII stand for? - ✔✔American Standard Code for Information
Interchange
✔✔Which letter is used to represent decimal number 12 in the hexidecimal numbering
system? - ✔✔C
The digits of the hexidecimal numbering system are 0, 1,...,9, A, B, C, D, E, F.
Representing decimal number 0 ~ 15.
✔✔How many bits does each hexadecimal digit (symbol) require? - ✔✔4
, Each hexadecimal digit needs 4 bits.
✔✔The PandA system: - ✔✔is binary
PandA stands for "presence and absence", the two fundamental patterns of binary
information.
✔✔Which of the following file is an image file type? - ✔✔JPG
See the media file reading.
✔✔MP3 is popular for Internet transmission because it yields higher quality even though
this also requires higher bandwidth requirements - ✔✔False
It is popular because its compression ration is more than 10:1, make the music file's
size smaller and easier to transmit in Internet.
✔✔Which of the following is NOT a creative effect that can be produced by using
image-editing software? - ✔✔hologram
✔✔Which of the following statements about image-editing software is FALSE? - ✔✔It
can be used to animate the images.
✔✔Pictures can be transferred from a camera to a computer using - ✔✔a USB port, a
FireWire port, or a Bluetooth connection
✔✔Optical character recognition (OCR) used for reading license plates: - ✔✔all of the
above.
✔✔When cropping an image, the cropping handle should be dragged _________ to
eliminate the unwanted part of the picture. - ✔✔inward
✔✔GIF encoding - ✔✔is a lossless encoding scheme
✔✔Which tool allows you to remove part of a photo? - ✔✔Crop
✔✔Which of the following is NOT a basic tool available with image-editing software? -
✔✔automatic updating tool
✔✔In a photo, brightness is determined by - ✔✔how close the pixels are to white
✔✔Which of the following is an audio file type? - ✔✔MP3
