Concepts of Database Management
8th Edition
ISBN: 9781285427102
Author: Philip J. Pratt, Mary Z. Last
Publisher: Cengage Learning
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Chapter 2, Problem 22RQ
To determine
To describe the purpose of JOIN command in Relational Algebra.
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In modern packet-switched networks, including the Internet, the source host segments long, application-layer messages (for example, an image or a music file) into smaller packets and sends the packets into the network. The receiver then reassembles the packets back into the original message. We refer to this process as message segmentation. Figure 1.27 (attached) illustrates the end-to-end transport of a message with and without message segmentation. Consider a message that is 106 bits long that is to be sent from source to destination in Figure 1.27. Suppose each link in the figure is 5 Mbps. Ignore propagation, queuing, and processing delays.
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Chapter 2 Solutions
Concepts of Database Management
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