490 Chapter 11 Understanding Windows Server 2008 R2 Networking Answers to Review Questions 1. B . Each packet has a header and data and is typically placed in a frame that consists of three parts: a header, data, and a trailer. The packet header includes the source and destination logical addresses. C. Network Driver Interface Specification (NDIS) provides a standard way for protocols to bind to the Data-Link drivers. As long as a developer supports NDIS, the protocol will load in Windows Server 2008 R2. However, this will not make it interoperate with the Windows Server 2008 R2 services. The applications will have to be written to the specific protocols. D. TCP/IP is the most widely used protocol for interconnecting computers and networks. It is the only protocol used on the Internet and the only one compatible with the other protocols mentioned. It works well with very large internetworks. A, B, C, D. TCP sits at the Transport layer, and IP sits at the Network layer; both are necessary to route requests through the Internet. However, you also need a browser such as Netscape or Internet Explorer to provide the HTTP calls to actually connect to the various websites; the browser sits at the Application layer. But any end-to - end communication uses all the levels of the OSI model because each layer communicates with the layer below and the layer above to form the complete chain. A . The Physical layer is concerned with signaling, specifically through electrical, optical, or radio signals. The high voltage associated with large motors can easily cause an 2. 3. 4. 5.