Data Communications and Network Services
Beschreibung
When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan .
- Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
- Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.
About this course: Welcome to the third of five courses in the Cisco Networking Basics Specialization. Now that you know the basics of what an network is and how the devices on a network communicate with each other, it is time to explore the network further. In this course, you will learn the benefits and limitations of the IPv4 addressing system and why NAT and IPv6 were implemented to address the limitations. You will also explore common network services and protocols such as email, web services, instant messaging, DNS, HTTP, HTML, SMTP, Telnet, and SSH. At the end of this course, you will be able to: 1. Describe the role of network services including DHCP and DNS. 2. Use Cisco Packet…
Frequently asked questions
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When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan .
- Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
- Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.
About this course: Welcome to the third of five courses in the Cisco Networking Basics Specialization. Now that you know the basics of what an network is and how the devices on a network communicate with each other, it is time to explore the network further. In this course, you will learn the benefits and limitations of the IPv4 addressing system and why NAT and IPv6 were implemented to address the limitations. You will also explore common network services and protocols such as email, web services, instant messaging, DNS, HTTP, HTML, SMTP, Telnet, and SSH. At the end of this course, you will be able to: 1. Describe the role of network services including DHCP and DNS. 2. Use Cisco Packet Tracer to configure a router to perform DHCP services for a LAN. 3. Explain use of IPv4 private addresses with NAT. 4. Compare TCP and UDP protocol operations for efficiency and reliability. 5. Describe the network services and applications for file transfer, web access, email, remote access and instant messaging. 6. Observe how web requests are processed by the web client and the server. 7. Use various tools to verify network operations.
Who is this class for: This class is designed for beginners in computing that want to understand the basics of how data is sent and received in a network and how small computer networks are created. People who may be in non-networking professions that would like to understand how their home or small business network works will enjoy this course. Previous networking knowledge is not required. This course is designed to provide an introduction to the basics of networking and will cover only a very small portion of the necessary knowledge and skills needed to achieve an entry-level Cisco networking certification. Access to a Windows 10 machine and a simulation tool called Cisco Packet Tracer is required to get the full benefit of the course.
Created by: Cisco-
Taught by: Telethia Willis, Cisco Networking Learning & Development
Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.
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CiscoSyllabus
WEEK 1
Obtaining Addressing Information Automatically
In this module, you will learn the purpose and benefits of using static and dynamic addressing in a network. You will use Packet Tracer to create a small wired network and enable the devices to automatically obtain the needed addressing information to connect to the network.
2 videos, 7 readings expand
- Reading: About This Course
- Reading: Cisco Packet Tracer
- Reading: Assigning Addresses
- Reading: Dynamic IPv4 Address Assignment
- Reading: Where Do DHCP Addresses Come From?
- Reading: How Does IPv4 DHCP Work?
- Video: How Does IPv4 DHCP Work?
- Reading: DHCP Service Configuration
- Video: DHCP Service Configuration
Graded: Static and Dynamic Address Assignments
Graded: PT Activity – Configure DHCP on a Wireless Router
Graded: Week 1 Quiz
Graded: Help! I am not Connected!
WEEK 2
Limitations of IPv4 and Transitioning to IPv6
In this module, you learn the benefits and limitations of the IPv4 addressing system and why NAT and IPv6 were implemented to address the limitations. You will use Packet Tracer to create and examine traffic for NAT translations.
6 videos, 9 readings, 1 practice quiz expand
- Reading: Gateways to Other Networks
- Video: Gateways to Other Networks
- Reading: Who is on the Inside?
- Reading: From IPv4 Private to Public Addresses
- Video: From IPv4 Public to Public Addresses
- Reading: What is IPv6 and Why Do We Need It?
- Reading: IPv6 to the Rescue
- Reading: Change is Coming
- Reading: The Number System
- Video: Topic Review: The Hexadecimal Number System
- Video: Comparing IPv4 and IPv6 Addressing
- Reading: IPv6 Differences
- Video: IPv6 Differences
- Reading: IPv6 Address Formatting
- Video: IPv6 Address Formatting
- Practice Quiz: Activity - IPv6 Address Notation
Graded: PT Activity - Examine NAT on a Wireless Router
Graded: Week 2 Quiz
WEEK 3
Transporting Data Effectively and Efficiently
In this module, you will observe the interactions that occur between servers and clients as data is requested and transmitted over the network. You will learn how data is transported across the network and the protocols that are used to accomplish the tasks. Comparisons between the two transport layer protocols, TCP and UDP will be made.
4 videos, 10 readings, 2 practice quizzes expand
- Reading: How do Clients and Servers Interact?
- Reading: Requesting a Web Page
- Reading: Serving Up Web Pages
- Video: Observing Web Traffic in Packet Tracer
- Reading: Common Internet Services
- Video: Web Server and Client Interactions
- Reading: Protocol Operations
- Reading: TCP and UDP
- Reading: Ensuring Reliable Delivery
- Reading: No Acknowledgment Needed
- Video: No Acknowledgement Needed
- Practice Quiz: Activity - Choosing a Transport Protocol
- Reading: Transport Layer Port Numbers
- Reading: Destination and Source Port Numbers
- Video: Transport Layer Port Numbers
- Practice Quiz: Activity - Improve Your Network Vocabulary
Graded: Activity - Service to Client Request
Graded: PT Activity - The Client Interaction
Graded: Week 3 Quiz
WEEK 4
Common Network Services
There are numerous services requested and delivered over the network. Some may seem apparent while others are at work in the background providing needed services. In this module, you will learn about common network services and protocols such as email, web services, instant messaging, DNS, HTTP, HTML, SMTP, Telnet, and SSH.
4 videos, 11 readings expand
- Reading: Translating Domain Names to IP Addresses
- Reading: DNS Servers
- Video: DNS Servers
- Reading: HTTP and HTML
- Video: HTTP and HTML
- Reading: Transferring Files
- Reading: FTP Client Software
- Video: FTP Client Software
- Reading: Using Telnet
- Video: Using Telnet
- Reading: Security Issues with Telnet
- Reading: Email Clients and Servers
- Reading: Email Protocols
- Reading: Instant Messaging
- Reading: Internet Phone Calls
Graded: Lab - Observing DNS Name Resolution
Graded: PT Activity - Observing Web Requests
Graded: Week 4 Quiz
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