1. Why should a company network its computers instead of using stand-alone compu
ID: 3648891 • Letter: 1
Question
1. Why should a company network its computers instead of using stand-alone computers?2. Name and describe two fundamental network types.
3. Name and describe the types of networks based on the amount of territory they cover.
4. What is a server?
5. What is a client?
6. What is a NIC and what does it stand for?
7. What is a NOS and what does it stand for?
8. What is a segment?
9. What is a protocol?
10. What is a data packet?
11. Why is the International Organization for Standardization called ISO?
12. What is the purpose of the OSI model and each of its layers?
13. Explain how two network nodes communicate through the OSI model.
14. Compare and contrast packets and frames.
15. Name and describe the two types of addressing covered by the OSI model.
Explanation / Answer
1. cheaper and can share resources/license eaiser 2.Wide Area Network (WAN), Local Area Network (LAN) --LAN is local network and WAN is for broad area and usually made up of several LAN. 3. see above. 4. A physical computer dedicated to serve as a host for some service/function 5. What the server serves 6. registry operator, network information center 7.Networking Operating System (NOS),software that runs on a server and enables the server to manage data, users, groups, security, applications, and other networking functions 8. Portion of a whole (in this case, network) 9. rules/standards for communication/exchange of data etc electronically 10. formatted unit of data carried by a packet mode computer network 11. To avoid OSI abbrevation 12. Network architecture of 7 layers Layer 1: physical layer - defines relationship between device/transmission media Layer 2: data link layer - provides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the physical layer Layer 3: network layer - does network routing functions Layer 4: transport layer- provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers Layer 5: session layer- controls the dialogues (connections) between computers Layer 6: presentation layer-establishes context between application-layer entities, in which the higher-layer entities may use different syntax and semantics if the presentation service provides a mapping between them Layer 7: application layer- This layer interacts with software applications that implement a communicating component.
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