Amazon近期大量发放offer中，我们一起来看看近期OA的真题吧，准备亚马逊OA的你一定不要错过这篇文章。

Amazon has recently been issuing a large number of offers. Let's take a look at some real questions from recent Online Assessments (OAs). If you're preparing for an Amazon OA, you definitely don't want to miss this article.

Amazon's AWS provides fast and efficient server solutions. The developers want to stress-test the quality of the servers' channels. They must ensure the following:

• Each of the packets must be sent via a single channel.
• Each of the channels must transfer at least one packet.

The quality of the transfer for a channel is defined by the median of the sizes of all the data packets sent through that channel.

Note: The median of an array is the middle element if the array is sorted in non-decreasing order. If the number of elements in the array is even, the median is the average of the two middle elements.

Find the maximum possible sum of the qualities of all channels. If the answer is a floating-point value, round it to the next higher integer.

The next part consists of multiple-choice questions for about 15 minutes. Don't stress about this section; just answer honestly according to your true thoughts, there's no need to try to guess the correct answers.

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We provide services to complete OAs on your behalf. Please note that if you have found this article while in the process of taking an OA, unfortunately, we will not be able to serve you. Thanks to our high-quality service and competitive pricing, our OA completion services require an appointment to be made in advance. Our OA completion is a paid service(359usd); if you are hoping to get answers for free, please do not contact us.