IP addresses may uniquely identify each system on a network, but those systems may be responsible for running many different services. That’s where network ports come into play. Network ports are particular locations on a system associated with a specific application. In this video, learn how network ports function and the common network ports included on the exam.
- [Instructor] IP addresses may uniquely identify…each system on a network, but those systems…may be responsible for running many different services.…That's where network ports come in to play.…Network ports are particular locations…on a system associated with a specific application.…Imagine that each computer on the network…is an apartment building, and each application…is an individual apartment.…The IP address on the computer…is like the street address on the apartment building.…But once you arrive at the building,…you need specific instructions…to get to the right apartment.…
The network port is like the apartment number,…guiding traffic to the correct application.…Network ports are represented using a 16-bit binary number.…When we write that out in decimal form,…we have two to the 16th power,…or 65536 possible values.…Just as with IP addresses, we start counting at zero,…so port numbers may range from zero to 65535.…Different ranges of ports are used in different ways.…
Ports between zero and 1023 are known…
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- TCP/IP networking
- Network security devices
- Switches and routers
- Content distribution networks
- Storage networks
- Securing networks
- Network attacks
- Wireless networking and security
Skill Level Intermediate
Q: This course was updated on 07/27/2018. What changed?
A: New videos were added that cover network relationships and security device placement.
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
Networks and communications1m 31s
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Network Attacks
7. Wireless Networking
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