5. Mr. Peterson is applying for a new job and needs to upload multiple files to the job hub for the potential employer. The application allows only one upload 6 MB or less. His current folder holding all files 12 MB. Which of the following events best supports what Mr. Peterson needs to do? a. Compress each file individually, using a lossy compression algorithm, then compress the file using a lossy compression to upload to the app. b. Using a lossless compression, Mr. Peterson should create a zip file. c. Use a lossy compression to reduce the file size and upload to application. d. None of the selections will work for Mr. Peterson's needs.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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5. Mr. Peterson is applying for a new job and needs to upload multiple files to the job hub for the potential
employer. The application allows only one upload
6 MB or less. His current folder holding all files 12 MB. Which of the following events best
supports what Mr. Peterson needs to do?
a. Compress each file individually, using a lossy compression algorithm, then compress the file using a
lossy compression to upload to the app.
b. Using a lossless compression, Mr. Peterson should create a zip file.
c. Use a lossy compression to reduce the file size and upload to application.
d. None of the selections will work for Mr. Peterson's needs.
6. Ms. Brantley recently airdropped a photo from her phone to her Mac and noticed it saved the image as a
HEIC file. A HEIC file is Apple's proprietary version of a high-efficiency image file where the file is smaller
in terms of data while retaining high quality better than a JPEG file, but still compromises some data. What
type of compression is this?
a. refiner
b. lossless
sifter
d. lossy
C.
7. JPEG image files can reduce files sizes up to 90% by replacing similar colors with the same color as
large parts of the image. This replacement generally cannot be detected by the human eye. What was
the size of the original image if the compressed image is 324 KB?
3,420,000 B
b.
380 KB
с. 3.42 КВ
d. 3.8 MB
8. If you have an image that is 400 x 500 pixels or 200,000 pixels and each pixel uses 3 bytes. (Show all
work for calculations.)
a.
How many bytes would the image need?
b. How many KB is this?
c. How many MB is this?
d. If you compress the image by 90% into a JPEG file,
what is the new file size in KB?
Transcribed Image Text:5. Mr. Peterson is applying for a new job and needs to upload multiple files to the job hub for the potential employer. The application allows only one upload 6 MB or less. His current folder holding all files 12 MB. Which of the following events best supports what Mr. Peterson needs to do? a. Compress each file individually, using a lossy compression algorithm, then compress the file using a lossy compression to upload to the app. b. Using a lossless compression, Mr. Peterson should create a zip file. c. Use a lossy compression to reduce the file size and upload to application. d. None of the selections will work for Mr. Peterson's needs. 6. Ms. Brantley recently airdropped a photo from her phone to her Mac and noticed it saved the image as a HEIC file. A HEIC file is Apple's proprietary version of a high-efficiency image file where the file is smaller in terms of data while retaining high quality better than a JPEG file, but still compromises some data. What type of compression is this? a. refiner b. lossless sifter d. lossy C. 7. JPEG image files can reduce files sizes up to 90% by replacing similar colors with the same color as large parts of the image. This replacement generally cannot be detected by the human eye. What was the size of the original image if the compressed image is 324 KB? 3,420,000 B b. 380 KB с. 3.42 КВ d. 3.8 MB 8. If you have an image that is 400 x 500 pixels or 200,000 pixels and each pixel uses 3 bytes. (Show all work for calculations.) a. How many bytes would the image need? b. How many KB is this? c. How many MB is this? d. If you compress the image by 90% into a JPEG file, what is the new file size in KB?
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