Exam Professional Data Engineer topic 1 question 144 discussion

Answer: A Description: Huge amount of data with log network bandwidth, Transfer applicate is best for moving data over 100TB

Correct - A

A . Easy, just by the amount of data

In 6 months - only 0.0290304 Petabytes will be uploaded. Right - compression might help, but we do not have any info to support the ration. Lets go for A

Physical Transfer: Transfer Appliance is a physical device provided by Google Cloud that you can use to physically transfer large volumes of data to the cloud. It allows you to avoid the limitations of network bandwidth and transfer data much faster. Capacity: Transfer Appliance can handle large volumes of data, including the 2 PB you need to migrate, without the constraints of slow network speeds. Efficiency: It is highly efficient for large-scale data transfers and is a practical choice for transferring multi-terabyte or petabyte-scale datasets.

it would take 34 years. Option A no doubt. https://cloud.google.com/static/architecture/images/big-data-transfer-how-to-get-started-transfer-size-and-speed.png

2,000,000,000,000,000 bytes = 2 Petabytes 20,000,000 bytes = 20 Megabytes Once we do the math: 2 Petabytes / 20 Megabytes = 100,000,000 seconds forecasted to migrate the data. 100,000,000 seconds = 1,666,666.7 minutes = 27,777.8 hours = 1,157.4 days 6 months = 180 days 1,157.4 days > 180 days Still, with such amount Transfer Appliance is recommended.

Transfer alliance is a physical device of size like cabin luggage or slightly larger. It has Seagate/WD harddisk (these are name of companies) size varries from 100 to 480 TB. In our case 2PB (2000 TB) accordingly. Google send you this and transfer data into it by wire connection and then upload data from this to GCS and empty the appliance.

This is no brainer question, A is right

A is the answer. https://cloud.google.com/transfer-appliance/docs/4.0/overview Transfer Appliance is a high-capacity storage device that enables you to transfer and securely ship your data to a Google upload facility, where we upload your data to Cloud Storage.

Problem: Transferring 2 peta data to Cloud Storage Considerations: Bad network speed Bad network = cannot initiate from client’s end through network. So, B, C is out D will still be super slow. At this speed it will take 27,777 hours to transfer the data

Vote for A A - Correct , Transfer Appliance for moving offline data, large data sets, or data from a source with limited bandwidth https://cloud.google.com/storage-transfer/docs/overview B - Eliminated (Not recommended for large storage). recommended for < 1TB C - Its ONLINE, but we have bandwidth issue - So eliminated. D - Eliminated (Not recommended for large storage). recommended for < 1TB

Correct answer is A. with little calculation we know the kind of data will require approx 19 months to transfer on 20Mbps bandwidth. Also, google recommends Transfer appliance for petabytes of data.

A is correct

Correct - A

Answer A