Since 2001, DigitalGlobe started capturing the world. Before the migration to AWS(Amazon Web Services), DigitalGlobes data were all saved on tons of tapes. It is an album of the earth with 100 PB(petabytes) data, and it is growing by 100 TB(terabytes) every day, as its five satellites automatically streamed their world-watching down [3]. In 2017, they decided to move their massive data to AWS. Google Fiber provides the broadband Internet connection service to several cities in the US with the speed 1 G bits/sec in the fastest option [4]. It is super fast compared to the common broadband plan with about 100MHz(100 M bits/sec) bandwidth. However, this is not the fastest Internet speed in the US. The cable connection from xfinity (formerly known as Comcast Cable) provides the network accessing service at a doubled speed, which is 2,000 Mbps [2](2,000 M bits/sec).

1. Find how many years does it need to transfer the 100 PB data through 100 MHz broadband network.

2. Calculate the data transferring time through Google Fiber.

3. How long will it be if the cable connection is provided by xfinity?

4. AWS Snowmobile is an Exabyte(EB)-scale data transfer service designed by Amazon [1]. You can transfer up to 100PB per Snowmobile, a 45-foot long shipping container, pulled by a semi-trailer truck. Suppose the speed of the semi-truck on the freeway is 65 mph. The longest distance between two major cities in the contiguous US is about 3300 miles (from Seattle to Miami). Please calculate the bandwidth of the AWS Snowmobile if the 100PB data is shipped from Seattle to Miami. Use the Gbits/sec in your result.

(I'm confused by the conversion, can anyone help me with a detailed solution? Thank you)

= Note: 1 Byte 8 bits For the network transmission, assume 5% overhead (times 1.05 with the size of data you want to send). - = 103 = 1 Kbits 1 Mbits 1 Gbits bits= 1000 103 Kbits= 1000 103 Mbits= 1000 bits Kbits Mbits = - 1 KB 1 MB 1 GB 1 TB 1 PB 1 EB 210 B = 1024 210 KB 1024 210 MB 1024 210 GB 1024 210 = 1024 210 PB = 1024 B KB MB GB PB = =