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A video client adapts the bit-rate of the next chunk it downloads from a streaming video server based on its current buffer occupancy, according to the curve shown below.

A video client adapts the bit-rate of the next chunk it downloads from a streaming video server based on its current buffer occupancy, according to the curve shown below.

Database System Concepts
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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Course Name: Networking

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A video client adapts the bit-rate of the next chunk it downloads from a streaming video server based on its current buffer occupancy, according to the curve shown be low. 1080p 720p 480p 360p 240p 144p 10s 60s Bmax =80s Playout buffer occupancy Note that the buffer occu pancy is shown in seconds, rather than bytes, to denote how long the client's buffer will last upon video playout. The linear sloped portion of the curve between 10-60s of buffer is divided in 5 equal pieces along the x-axis by the quality settings shown: 240p/360p/480p/720p. Suppose the client's current video buffer can last up to 40s of vide o playout. W hat is the resolution of the next chunk that the client requests from the server? A: 360 B: 480 C: 720 D: 1080 Next chunk's video bit-rate
Transcribed Image Text:A video client adapts the bit-rate of the next chunk it downloads from a streaming video server based on its current buffer occupancy, according to the curve shown be low. 1080p 720p 480p 360p 240p 144p 10s 60s Bmax =80s Playout buffer occupancy Note that the buffer occu pancy is shown in seconds, rather than bytes, to denote how long the client's buffer will last upon video playout. The linear sloped portion of the curve between 10-60s of buffer is divided in 5 equal pieces along the x-axis by the quality settings shown: 240p/360p/480p/720p. Suppose the client's current video buffer can last up to 40s of vide o playout. W hat is the resolution of the next chunk that the client requests from the server? A: 360 B: 480 C: 720 D: 1080 Next chunk's video bit-rate
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