obasogie week 1 - IS589 Networking Concepts and...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
IS589 Networking Concepts and Applications – Homework week 1 October 26, 2010 Page 1 Ch 1: Question 13 13. Describe the five layers in the Internet network model and what they do. Layer Purpose Application Layer Used by application program. It is the user’s access to the network. By using the application software, the user defines what messages are sent over the network. Transport Layer Responsible for establishing end-to-end connections, translates domain names into numeric addresses, segments messages and detect lost messages and request that they be resent. Network Layer Responsible for end-to-end addressing and routing, determines destination address if unknown. Data Link Layer Deals with message delineation, error control and network medium access control. Physical Layer Is the physical connection between the sender and receiver, defines how individual bits are formatted to be transmitted through the network. Its role is to transfer a series of electrical, radio, or light signals through the circuit. The physical layer includes all the hardware devices (e.g., computers, modems, and hubs) and physical media (e.g., cables and satellites). Ch 2: Question 7 7. Compare and contrast two-tier, three-tier, and n -tier client-server architectures. What are the technical differences, and what advantages and disadvantages does each offer? Client-Server Architectures
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/21/2010 for the course IS IS589 taught by Professor Parker,g during the Fall '10 term at Keller Graduate School of Management.

Page1 / 3

obasogie week 1 - IS589 Networking Concepts and...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online