When you are learning how to modify device configurations, you might want to start in a safe, non-production environment before trying it on real equipment. There are different simulation tools to help build your configuration and troubleshooting skills. Because these are simulation tools, they typically do not have all the functionality of real equipment. One…

Network application services allow users to use domain names instead of IP addresses, receive information from web servers, access our email, and perform file transfers. These are the services in which users interact with network and the internet. Common Network Application Services (16.2.1) What are the most common internet services that you use on a…

Much of the information that we receive over the internet is provided in the form of web page documents. To request and view a web page, a person uses a device that is running web client software, such as a web browser.The key characteristic of client/server systems is that the client sends a request to…

ObjectivesUpon completion of this chapter, you will be able to answer the following questions: Key TermsThis chapter uses the following key terms. You can find the definitions in the Glossary.Domain Name System (DNS)Dynamic Host Configuration Protocol (DHCP)File Transfer Protocol (FTP)HyperText Markup Language (HTML)Hypertext Transfer Protocol (HTTP)Internet Message Access Protocol (IMAP)Post Office Protocol (POP)Secure Shell (SSH)Simple…

The following is a summary of each topic in the chapter and some questions for your reflection. What Did I Learn in this Module? (15.3.1) • TCP and UDP—UDP is a ’best effort’ delivery system that does not require acknowledgment of receipt. UDP is preferable with applications such as streaming audio and VoIP. Acknowledgments would…

The source and destination ports are placed within the segment. The segments are then encapsulated within an IP packet. The IP packet contains the IP address of the source and destination. The combination of the source IP address and source port number, or the destination IP address and destination port number is known as a…

TCP and UDP use port numbers. Port numbers are used to indicate a network process or service from the perspective of both the source of the message and the destination. Video – Transport Layer Port Numbers (15.2.1) Refer to the online course to view this video. TCP and UDP Port Numbers (15.2.1) There are many…

Each service available over the network has its own application protocols that are implemented in the server and client software. In addition to the application protocols, all of the common internet services use Internet Protocol (IP) to address and route messages between source and destination hosts, as shown in Figure 15-1. Figure 15-1 Common Protocols…

Objectives Upon completion of this chapter, you will be able to answer the following questions: • What is the difference between TCP and UDP transport layer functions? • How does TCP and UDP use port numbers? Key Terms This chapter uses the following key terms. You can find the definitions in the Glossary. socket Transmission…

In this Packet Tracer activity, you will complete the following objectives: Packet Tracer – Create a LAN (14.3.4)In this Packet Tracer activity, you will complete the following objectives: Reflection Questions (14.4.2) On my home network (LAN), I do not usually have enough network traffic to experience congestion, although it can happen when all my children…