Course Overview and Lab Activities Quiz

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Questions and Answers

What is the main focus of this course?

Understanding the basic concepts of computer networks. (correct)

Analyzing network traffic patterns and trends.

Learning advanced programming techniques for network applications.

Developing security protocols for network systems.

Which of the following is NOT a research area of Dr. Kuljeet Kaur?

Smart Grid

Cloud Computing

Energy Management

Artificial Intelligence (correct)

What is the ISBN-13 of the required textbook for this course?

9780134680519

9780134751569

9780135928608 (correct)

9780134997397

Which of the following is a prerequisite for this course?

ENG-101 (B) Signup and view all the answers

Which of the following is NOT a learning outcome of this course?

Analyzing the performance of network protocols. (C) Signup and view all the answers

What is mentioned as a reference book for this course?

Data Communications and Networking by Behrouz A. Forouzan (A) Signup and view all the answers

What is Dr. Kuljeet Kaur's most recent academic position?

Associate Professor (C) Signup and view all the answers

What is the primary purpose of Lab Activity 1?

To introduce students to the network simulation software's interfaces and operation (D) Signup and view all the answers

In which Lab Activities are students expected to submit a Lab Report?

Lab Activities 1, 2, 3, 4, 5, 6, 7, and 9 (B) Signup and view all the answers

Which Lab Activity focuses on building a simple link between an endpoint and a server?

Lab Activity 1 (C) Signup and view all the answers

Which of the following topics are covered in Lab Activities 2 and 3?

Physical and logical addresses (C) Signup and view all the answers

What is the main focus of Lab Activity 4?

Exploring different options available on internetworking devices at the physical layer (A) Signup and view all the answers

Which of the following Lab Activities involve studying the OSI model?

Lab Activities 5 and 6 (D) Signup and view all the answers

Which Lab Activity focuses on practicing different data encoding and modulation techniques for both digital and analog signals?

Lab Activities 7 and 9 (A) Signup and view all the answers

Which Lab Activity is dedicated to midterm week and does not involve any lab work?

Lab Activity 8 (D) Signup and view all the answers

Which activities involve applying the basics of network switch configuration and building a LAN network?

Lab Activities 9 and 10 (C) Signup and view all the answers

What is the formula for calculating the number of physical links required in a mesh topology, where 'n' represents the number of devices?

$n(n-1)/2$ (D) Signup and view all the answers

Which of the following is NOT an advantage of a mesh topology?

Lower cabling costs compared to other topologies (C) Signup and view all the answers

Which topology uses a single cable that connects all devices, and is often considered one of the first topologies used in early LANs?

Bus (C) Signup and view all the answers

What is a key characteristic of an effective data communications system?

Delivery to the correct destination (C) Signup and view all the answers

Which component is responsible for sending the data message in a communication system?

Sender (B) Signup and view all the answers

What does jitter refer to in data communications?

Variation in packet arrival time (B) Signup and view all the answers

Timeliness in data communications indicates that data should be delivered:

As they are produced and in the correct order (B) Signup and view all the answers

In the context of data communication, what does the term 'data' refer to?

Information in a designated format (D) Signup and view all the answers

Which of the following is not considered a fundamental characteristic of a data communications system?

Compatibility (C) Signup and view all the answers

What does the term 'telecommunication' specifically imply?

Communication at a distance (C) Signup and view all the answers

Which of the following is an example of a data transmission medium?

Wire cable (C) Signup and view all the answers

What is the primary purpose of evaluating the accuracy of a data communications system?

To verify data is delivered without errors (C) Signup and view all the answers

The physical equipment involved in data communications is known as:

Hardware (B) Signup and view all the answers

Which of these is NOT a measure of network performance?

Security (C) Signup and view all the answers

Which type of connection is characterized by a dedicated link between two devices, where the entire link capacity is reserved for those two devices?

Point-to-point (C) Signup and view all the answers

What determines if a multipoint connection is spatially shared or temporally shared?

Whether devices can use the link simultaneously or take turns. (C) Signup and view all the answers

In a mesh topology, how many physical links are needed for a network with 5 devices?

10 (A) Signup and view all the answers

If a network's performance is measured by the time it takes for a data packet to travel from the source to its destination, which of these metrics is being used?

Transit time (D) Signup and view all the answers

What does 'robustness' mean in the context of network reliability?

The ability of the network to recover from a failure. (D) Signup and view all the answers

Which of the following is NOT a component of a physical topology?

Protocols (B) Signup and view all the answers

A connection where multiple stations share a single channel is called a _____.

Multipoint connection (A) Signup and view all the answers

In a multipoint connection, if several devices can use the link simultaneously, what type of connection is it?

Spatially shared (C) Signup and view all the answers

Which of these is a characteristic of reliability in a network?

Accuracy of data delivery. (A) Signup and view all the answers

Study Notes

Course Information

Course Title: NET 110: Computer Networks Fundamentals
Course Description: This course introduces networking technologies, models, and concepts related to network communications. It covers networking basics, types of networks, reference models, networking concepts and terminology, physical layer, data encoding, modulation techniques, bandwidth utilization, multiplexing, network hardware components, transmission media, layers, introduction to data link layer concepts, and IEEE LAN standards.
Instructor: Dr. Kuljeet Kaur, Associate Professor
Institution: Canadian University Dubai

Course Learning Outcomes (CLOs)

CLO1: Identify the various services and technologies of the Internet and OSI network layering models.
CLO2: Apply different data encoding and modulation techniques for digital and analog signals.
CLO3: Explain bandwidth utilization using multiplexing and spreading.
CLO4: Distinguish between the different types of transmission media and their suitability for different usages.
CLO5: Identify the principal operations and services of the data link layer.

Course Assessment

Quizzes: 20% (10% + 10%)
Lab Work: 20%
Midterm Exam: 20%
Final Exam: 40%
Total: 100%

Textbooks and References

J. Kurose and K. Ross (2021). Computer Networking: A Top-Down Approach, 8th Edition. Pearson, ISBN-13: 9780135928608
Forouzan, B. A. (2013). Data communications and networking (5th ed.). New York, NY: McGraw-Hill.
W. Stallings (2013) Data and Computer Communications, 10th Edition, Pearson. ISBN-13: 978-1292014388
A. S. Tanenbaum and D. J. Wetherall (2010). Computer Networks, 5th Edition, Pearson, 2010, ISBN-13: 978-0132126953

Course Activity Outline

Week 1: Course Introduction, Overview of Computer Communications, Computer Networks, Network Types, Internet History
Week 2: Network Models, Protocol Layering, TCP/IP Protocol, OSI Model, Network Standards, Telecommunication vs. Data Communication
Week 3: Introduction to the Physical Layer, Data Encoding, and Signals
Week 4: Introduction to Physical Layer: Modulation Techniques: Analog signals and Digital Signals
Week 5: Introduction to Physical Layer, Transmission impairment, data rate limits & performance
Week 6: Digital Transmission
Week 7: Digital Transmission
Week 8: Analog Transmission
Week 9: Analog Transmission
Week 10: Bandwidth Utilization: Multiplexing and Spectrum Spreading
Week 11: Transmission media
Week 12: Circuit Switching, Packet Switching. Introduction to Data Link Layer
Week 13: Introduction to Data Link Layer
Week 14: Error detection techniques
Week 15: Revision
Week 16: Final Exam

Lab Activity Outline

Week 1: Introduction to the network simulation software interfaces and operation by building a simple link between end point and server
Week 2, 3: Demonstrate the difference between physical and logical addresses. Practice where to obtain the physical and logical addresses
Week 4: Explore the different options on internetworking devices at the physical layer
Week 5, 6: Study the OSI model by observing a TCP/IP packet journey and inspecting its header encapsulation. Simulate different simple network topologies and understand evaluate their performance.
Week 7, 8, 9: Practice different data encoding and modulation techniques for digital and analog signals.
Week 10, 11: Apply the basics of network switch configuration and to building a single LAN network. Inspect the switch MAC address table.
Week 12: Simulate data-link traffic using Layer 2 devices (Switch, hub and bridge)
Week 13, 14: Introduction to Wireshark, Use Wireshark to Capture and Analyze Ethernet Frames, Examine the Header Fields in an Ethernet II Frame
Week 15: LAB Final Exam

1-1 Data Communications

Telecommunication: Means of communicating at a distance; includes telephony, telegraphy, and television.
Data: Information presented in agreed-upon form.
Data Communications: Transfer of data between devices via a medium (e.g., wire).
Topics: Components, Data Representation, Data Flow

Communication System

Data communication systems combine hardware and software.
Effectiveness depends on: Delivery, Accuracy, Timeliness, and Jitter.

Communication System Characteristics

Delivery: Data sent to the correct destination.
Accuracy: Precise data transmission.
Timeliness: Data delivery in a timely fashion, especially for real-time applications like audio and video.
Jitter: Variations in packet arrival time.

Communication System Components

Message: Data to be communicated.
Sender: Device initiating the message.
Receiver: Device receiving the message.
Medium: Physical path used for data transfer (e.g., wire, cable).
Protocol: Set of rules governing data communication between devices

Data Representation

Data representation formats: Text, Numbers, Images, Audio, Video

Data Flow

Simplex: One-way data flow (e.g., keyboard to monitor)
Half-duplex: Data flows in one direction at a time (e.g., walkie-talkies)
Full-duplex: Data flows in both directions simultaneously (e.g., telephone network).

1-2 Networks

Network: A set of interconnected devices (nodes) linked by communication links.
Node types: Computers, printers, other communication devices.
Topics: Network Criteria, Physical Structures, Network Models, Categories of Networks, Interconnection of Networks

Distributed Processing

Most networks use distributed processing, tasks are divided among multiple computers

Network Criteria

Performance: Measured using metrics like transit time, response time, throughput, and delay.
Reliability: Measured by the accuracy of delivery, frequency of failure, time to recover from failure.
Security: Protecting data from unauthorized access, damage, and breaches.

Types of Connection

Point-to-point: Dedicated link between two devices (e.g., remote control to TV).
Multipoint: More than two devices connect to a single link (shared, spatially or temporally).

Physical Topology

Topology: Geometric representation of network connections (e.g., mesh, star, bus, ring, hybrid).

Mesh Topology

Every device has a dedicated point-to-point connection to every other device.
Advantages: Eliminates traffic problems, Robustness (one link failure doesn't affect entire system), Privacy.
Disadvantages: High cabling and port costs, difficult installation and reconnection

Star Topology

Each device connected to a central hub.
Advantages: Less expensive than mesh, Robustness (one link failure only affects that link), Easy fault isolation
Disadvantages: The entire system dies if the central hub fails, more cabling may be required than in mesh.

Bus Topology

One long cable acts as a backbone connecting all devices.
Advantages: Easy installation, less cabling than mesh or star.
Disadvantages: Difficult reconnection and fault isolation, difficulty adding new devices

Ring Topology

Devices connected in a closed loop.
Advantages: Easy to install and configure, adding/deleting a device only requires affecting two connections. Easy fault isolation
Signals travel in one direction, repeated by repeaters at each device.

Hybrid Topology

Combination of network topologies (e.g., star backbone with bus networks).

Network Models

OSI standard
TCP/IP model

Exercises

Identify the five components of a data communications system
Determine maximum colors for a 16-bit color image
Calculate cables and ports for a mesh topology.
Classify a network using an Ethernet hub into LAN, MAN, or WAN.
Discuss consequences of connection failures in various topologies.

References

Dr. Ahmed Al-Gindy
Dr. Kuljeet Kaur

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Test your knowledge about the course structure, prerequisites, and lab activities facilitated by Dr. Kuljeet Kaur. This quiz covers essential topics such as learning outcomes, required textbooks, and specific lab focuses including the OSI model and data encoding techniques. Prepare to demonstrate your understanding of the course requirements and lab expectations.