Please help with the Digital Information Questions

I will give a thumbs up in rating !!!

1) If the horizontal and vertical resolutions of an image are cut in half, what does that do to the number of pixels relative to the original?

A) The number of pixels is 1/2 the original. B) The number of pixels is 1/3 the original. C) The number of pixels is 1/4 the original. D) The number of pixels is 1/6 the original. E) The number of pixels is 1/8 the original.

2)You are part of a team that is setting up a movie streaming service. The company is planning on initially making available 500 movies. According to some research, the average length of a movie is 130 minutes. When the movie video files are compressed to mp4, the compressed bitrate can be chosen. The rate that has been chosen by the encoding team is 4 Mbps.

What is the minimum amount of storage that is required to host the initial 500 movies?

A) 250 gb B) 500 gb C) 1 tb D) 2 tb E) 4 tb F) 1 pb

3) A method of compression makes files 40% their original size. A network has a throughput of 80 Mbps. A file is 4 MB before compression. If the file is compressed and transferred across the network, how long will it take?

A) .02 s B) .06 s C) .16 s D) 1.40 s E) 1.60 s

4) As of the moment I am writing this question, the population of the United States is 326,891,705 people. You are building an app that targets the US population and expect to get 1/10 of 1% of the population using your app in the first 4 months. The estimated data you need to store per user averages 10 GB. What is the minimum storage you must plan to have in place for app to serve the users in the first 4 months?

A) 3.3 tb B) 300 tb C) 1.0 pb D) 2.1 pb E) 3.3 pb F) .5 eb G) 1 eb

5. You are going to record audio and want to preserve a highest frequency of 16 kHz. Which of the following sample rates should be used?

A) 16k sample/sec B) 24k sample/sec C) 32k sample/sec D) 48k sample/sec