One of your work tasks is to inventory all the software running on the network. You’ve been running Wireshark on your network for several weeks now. You’ve built a long list of all the source and destination port numbers seen on your network. As you examine this list, you find that there are more than 100 port numbers that are not listed on the IANA port list. There are also about 20 port numbers that belong to applications you know are not running on your network. What happened? Why are your research results so far off base?

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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One of your work tasks is to inventory all the software running on the network. You’ve been running Wireshark on your network for several weeks now. You’ve built a long list of all the source and destination port numbers seen on your network. As you examine this list, you find that there are more than 100 port numbers that are not listed on the IANA port list. There are also about 20 port numbers that belong to applications you know are not running on your network. What happened? Why are your research results so far off base?

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