# ECET 375 Week 1 Homework New Work

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ECET 375 Week 1 Homework New Work

Chapter 1-Questions

1-3: Discuss the relationship between network architecture and protocol

1-5: Define the following terms: protocol, connection-orientated protocols, connectionless protocols, and protocol stacks.

1-11: Briefly describe the seven layers of the OSI protocol hierarchy

1-21: List and briefly describe the five basic data communications network topologies

1-23: Briefly describe the TCP/IP protocol model

Chapter 3-Questions

3-1: In which layer of the OSI protocol hierarchy is the transmission medium found?

3-2: What are the two general categories of transmission media?

3-3: Define transmission line.

3-4: Describe a transverse electromagnetic wave.

Chapter 3-Problems
3-1: Determine the wavelengths for the electromagnetic waves in free space with the following frequencies: 1 kHz, 100 kHz, 1 MHz, and 1 GHz

3-2: Determine the wavelengths for the electromagnetic waves in free space with the following frequencies: 1 cm, 1 m, 10 m, and 1000 m.

3-3: Determine the characteristic for a two-wire parallel transmission line with an air dielectric and D/r ratio of 8.8.

3-5: Determine the characteristic impedance for a coaxial cable with inductance L = 0.2 microHenrys/foot and capacitance C=16 picoFarads/foot.

Chapter 4 Problems

4-1: Determine the wavelengths in nanometers, angstroms, and micrometers for the following frequencies: 3.45 * 1014 Hz, 3.62 * 1014 Hz, 3.21 * 1014 Hz

4-2: Determine the light frequency for the following wavelengths: 670 nm, 7800 angstroms, and 710 nm.

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# ECET 375 Week 1 iLab Exploring Internet Standards, RS-232 Communication, and Connectors New Work

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ECET 375 Week 1 iLab Exploring Internet Standards, RS-232 Communication, and Connectors New Work

Objective:

In this lab you will explore:
a)Internet RFCs
b)RS-232 Communication data format
c)Cables and Connectors
ECET 375 Week 1 iLab Exploring Internet Standards, RS-232 Communication, and Connectors
Objectives:
During lab we explored Internet RFCs, RS-232 Communication data format and Cables and Connectors
Results:
This lab was basically a research project to help us understand how the Internet Standards are created and how to pick the correct interface material that meets the requirements of any interface. Some of the topics were also refresher information from other ECET classes like the ASCII wave forms.
Conclusions:
After you design a system it’s critical to use the correct interface mediums and material types that meet your requirements. Picking materials that cover data rate or frequency values beyond your requirement will have an adverse cost effect on your final design. Keeping up with technology and standards is important in engineering. Before you pick materials for your design, complete your research to insure you take advantage of standards and material types that meet your requirements but do not exceed them. Balance the quality of these materials with your projects budget and you’ll be successful.

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# ECET 375 Week 2 iLab Calculating Spectrum and Linear Filtering in MatLab New Work

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ECET 375 Week 2 iLab Calculating Spectrum and Linear Filtering in MatLab New Work

Objectives

This lab is intended to explore signal spectrums and filtering operations using MatLab. Running pre-written MatLab scripts and altering these codes to perform specific tasks will be necessary to develop the appropriate displays. Calculation of a signal spectrum using the SigSpec.m file, and altering this file to display different types of signals including Cosine, AM, and Square waves will help to explore signal characteristics and display MatLab functionality. Using a second per-written file (LinFiltering.m) and MatLab, displaying how filtering can affect a signal, will be used to describe this process and how the resulting signal changes.
Results
During the exploration of this lab, the MatLab program was used to run specific functions containing the code necessary for appropriate signal plotting. These plots were created for the cosine, the AM, the square wave, using random information and breaking down a sound file (.wav). For each of these signals a MatLab plot was acquired, and used for analysis. Additionally, running the LinFiltering.m file in MatLab allowed the explanation of filtering to be shown in a plot. These plots were created for both the time and frequency domain, and successfully showed how a filter can help contain a signal.
Conclusions
After the completion of this lab, the concepts included are starting to make more sense. Realizing how powerful MatLab can be, and the functions accomplished by it are astounding. Creating the signal plots, being able to visually see the intended signals and then manipulating these signals is a real asset in the learning process. Each signal has its own characteristics and these characterstics can be contained, soften the edges, by using different filtering techniques. These filters can help remove unneeded data, showing the true signal behind it.

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# ECET 375 Week 3 iLab Exploring A Digital Transmission System New Work

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ECET 375 Week 3 iLab Exploring A Digital Transmission System New Work

# ECET 375 Week 4 Homework New Work

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ECET 375 Week 4 Homework New Work

Chapter 16

16.2 – What is meant by a primary station? A secondary station?

16.6 – Briefly describe the poll/select line discipline.
16.8 – Briefly describe the sliding window method of flow control.
16.9 – What is the difference between character- and bit oriented protocols?

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# ECET 375 Week 4 iLab Exploring Internet Protocol Hierarchy and the Ethernet Layer New Work

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ECET 375 Week 4 iLab Exploring Internet Protocol Hierarchy and the Ethernet Layer New Work

Objective:

In this lab, you will explore

a)Internet Protocol Hierarchy
b)ARP protocol and Ethernet Layer operation
Required Equipment:
A PC with Wireshark program installed
Following file: ecet-375WebBrowsing.pcap
Observations:
The captured data was analyzed using Wireshark. This data was compiled into lists and used to populate data tables.
Conclusion:
The information and techniques are well documented. The lab went as well as expected. The Wireshark program leaves off the SFD and FCS from the packet data, otherwise everything went well and as expected.

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# ECET 375 Week 5 Homework New Work

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ECET 375 Week 5 Homework New Work

Chapter 18:

2) Determine the contents of the length field for MAC frame for the following conditions:

3) An Ethernet address of 07-01-02-03-04-05 is what type of address?

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# ECET 375 Week 5 iLab Exploring Internet Protocol Hierarchy and the Ethernet Layer New Work

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ET 375 Week 5 iLab Exploring Internet Protocol Hierarchy and the Ethernet Layer New Work

Objectives: This lab was the exploration of the DHCP protocol operation and the IP protocol operation using Wireshark and two .PCAP captured files.

Results: The results showed that the DHCP was easy to follow in how it configured the client for a temporary IP address, along with a lease time, and also provided header information. The IP protocol provided details of messages sent such as fragment information and how many bytes per fragment.
Conclusions:. Wireshark is designed in such a way that makes following the messages and server feedback readable and easy for troubleshooting. Although we did no troubleshooting in this lab, the concept is observable as we studied the details of each packet

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