CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology) "Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53" Learn more about the PACE-IT Online program: www.edcc.edu/pace-it

1. Common
networking
protocols I.

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Instructor, PACE-IT Program – Edmonds Community College
Areas of Expertise Industry Certifications
 PC Hardware
 Network Administration
 IT Project Management
 Network Design
 User Training
 IT Troubleshooting
Qualifications Summary
Education
 M.B.A., IT Management, Western Governor’s University
 B.S., IT Security, Western Governor’s University
Entrepreneur, executive leader, and proven manger
with 10+ years of experience turning complex issues
into efficient and effective solutions.
Strengths include developing and mentoring diverse
workforces, improving processes, analyzing
business needs and creating the solutions
required— with a focus on technology.

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– TCP and UDP.
– Common ports and protocols.
PACE-IT.

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Common networking protocols I.

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– TCP and UDP common factors.
» Transport layer or Layer 4 protocols.
• Responsible for the delivery of network data between nodes.
– Transmission Control Protocol (TCP).
» Reliable delivery method.
» Ensures that all packets are received.
» Uses acknowledgements as a means of error correction.
» Establishes flow control to reduce error rate and ensure proper
delivery.
– User Datagram Protocol (UDP).
» Best effort delivery method.
» Sends data, but doesn’t care if the packets are all received.
» No error correction.
» Speed and low network overhead is what concerns UDP.
Common networking protocols I.

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Common networking protocols I.

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– HTTP (Hypertext Transfer Protocol).
» The primary protocol used to transfer data over the Internet.
• Assigned to port 80.
– HTTPS (Hypertext Transfer Protocol
Secure).
» The primary protocol to securely transfer data over the Internet
using SSL (Secure Socket Layer) or TLS (Transport Layer
Security) technology. In actuality, SSL should no longer be
used.
• Assigned to port 443.
– NetBIOS (Network Basic Input/Output
System).
» Originally developed to allow hosts to be able to communicate
with servers.
• Assigned to ports 137-139.
Common networking protocols I.

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– SMTP (Simple Mail Transfer Protocol).
» The protocol used to transfer email from a client to an email
server; it is also used to transfer email between servers.
• Assigned to port 25.
– POP3 (Post Office Protocol v3).
» The protocol used by clients to retrieve email from servers.
Once engaged, POP3 downloads all messages from the
servers. The user cannot access email messages until they
have been downloaded.
• Assigned to port 110.
– IMAP (Internet Message Access Protocol).
» A protocol used by clients to access email on email servers.
Allows the client to administer and organize email on the server
into folders.
• Assigned to port 143.
Common networking protocols I.

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– SIP (Session Initiation Protocol)
» A protocol that is most commonly used to set up and tear down
multimedia communication sessions (e.g., a VoIP session uses
SIP to establish and terminate the session).
• Assigned to ports 5060 and 5061.
– RTP (Real-time Transport Protocol).
» The protocol that is commonly used to format and deliver
multimedia or streaming content (e.g., RTP handles the flow of
packets in a VoIP session after SIP has established the
connection).
• Assigned to ports 5004 and 5005.
Common networking protocols I.

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– MGCP (Media Gateway Control Protocol).
» A protocol that defines a means of communication between a
packet switched network and circuit switched network (e.g., the
PSTN). It can be used to set up, maintain, and terminate calls
between multiple endpoints (e.g., teleconferencing).
• Assigned to ports 2427 and 2727.
– H.323.
» A protocol that provides a standard for delivering video over IP
networks. It defines how real-time audio, video, and data are to
be transmitted. It provides signaling and bandwidth control.
• Assigned to port 1720.
Common networking protocols I.

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Common networking protocols I.
TCP uses reliable delivery methods, while UDP uses best effort delivery
methods. UDP has less overhead, but it also has no mechanism for error
correction.
Topic
TCP and UDP.
Summary
Common ports and protocols include: HTTP (80), HTTPS (443), NetBIOS
(137-139), SMTP (25), POP3 (110), IMAP (143), SIP (5060 and 5061), RTP
(5004 and 5005), MGCP (2427 and 2727), and H.323 (1720).
Common ports and protocols.

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THANK YOU!

13. This workforce solution was 100 percent funded by a $3 million grant awarded by the
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