ANSWER THE FOLLOWING QUESTIONS.
TRUE OR FALSE
True 1. All types of computers and mobile devices serve as sending and receiving devices in a communications system.
False 2. On a client/server network, the client controls access to the resources on the network and provides a centralized storage area. (422)
True 3. On a P2P network, each computer has equal responsibilities and capabilities. (422)
False 4. Wi-Fi networks cannot be integrated with Ethernet networks. (427)
False 5. Most current operating systems do not yet have built-in Bluetooth support. (427)
False 6. UWB requires line-of-sight transmission, so its technology is not as widespread as IrDA. (429)
True 7. For successful communications with NFC devices, the devices or
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hub
b. router
c. switch
d. wireless access point
SHORT ANSWER 1. List the device types you need for successful communications.
Sending device, communication device, transmission media, A communications device that connects the communications channel to a receiving device, receiving device
2. A(n) network is a collection of computers and devices connected together via communications devices and transmission media. 3. List 3 reasons home and business users create a network. a. Facilitate communications b. Share hardware c. Share data and information 4. A(n) Value-added network is a third-party business that provides networking services, such as EDI. 5. Name file sharing programs.
2Shared, Dropbox, 4shared
6. A network topology is the layout of the computers and devices in a communications network. 7. Define the terms d. Network standard- defines guidelines that specify the way computers access the medium to which they are connected e. Protocol – A standard that outlines characteristics of how two devices communicate on a network 8. Define the term, Ethernet
Ethernet is a network standard that specifies no central computer or device on the network (nodes) should control when data can be transmitted.
Explain what happens when two devices on an Ethernet attempt to send data at the same time.
Collision will occur.
Draw a diagram on the steps how a network transmits data using a
Once one of the computers is properly configured as a file server, users can access the storage by mapping the drives on the respective computers. The file server will be mapped as a drive and users can store, edit and access files directly from the shared storage disk. The disk will be connected to each computer. For example, when a user needs to access any file from the file server, he/she can access the drive that will now be mapped on the every computer (Science - Opposing Views, 2014).
1)A network is when two or more computers are connected together and are able to share data and communication.
2. Enterprise networks typically use LAN _____ at each site to connect devices using some type of media.
name that other computers use to identify one another in a network. Internet protocol is
Module 1 establishes the framework of networking standards and protocols for the rest of the class. The module introduces data communications and defines their components and the types of data exchanged. You will learn how different types of data are represented and how data is flowed through the network.
As we all know, the growth of computer networks continues to rapidly grow. The digital revolution has changed the way we work and communicate almost beyond recognition. Provided that, foreseeing the changes and potential compatibility problems, in the mid nineteen eighties, the international standard organization (ISO) developed a networking reference model to standardize how network systems communicate with each other. It is a logical model for how network systems are supposed to communicate with each other. It breaks down the different components of the network communication and puts them into layers which reduce complexity. This reference model consists of seven layers: Application Layer, Presentation Layer, Session Layer, Transport Layer, Network Layer, Data Link Layer, and the Physical Layer. Each layer provides a service to the layer above it in the protocol specification and then communicates with the same layer’s software or hardware on other computers. It's important to realize, that these layers are separated into 2 sets: Transportation Set (Laters 1- 4) and Application Set (Layers 5 – 7). More importantly, the OSI model is 7 logical
I would define a network as a group of computers that are connected together with physical cables or wireless capabilities along with a series of peripheral devices such as, routers, switches, servers or printers etc…for sharing data, software and other resources between different users. When talking about bandwidth, it is a range of frequencies or wavelengths in which data is transmitted. With digital devices, bandwidth is calculated by bits per second or bytes per second and with analog devices, by cycles per second, or hertz.
A communications protocol characterizes the guidelines for sending pieces of information starting with one hub in a system then onto the next hub. Conventions are regularly characterized in a layered way and give all or part of the administrations indicated by a layer of the OSI reference show. A convention characterizes the operation of the convention and may likewise propose how the convention ought to be actualized. It comprises of three sections:
UNIT 9 P3- EXPLAIN the key components required for client workstations to connect to a network and access network resources
Client Server is a computer system where a central server provides data of networked workstations.
Bus – All computers and devices are connected asynchronous to one linear cable known as a trunk or generally known as a backbone. each ends of the trunk should be terminated to prevent the signal from bouncing duplicate the cable. as a result of the network
20. Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server?
b. Uses high-speed networking technologies to give servers fast access to large amounts of disk storage
A computer network is a network that consist of two or more computers that are able to share information between them or their users. There are a large variety of different networks and the advantages or disadvantages are strongly related to the type of network we choose.
Well-known communications protocols are Ethernet, a hardware and Link standard that is ubiquitous in local area networks, and the Internet Protocol Suite, which defines a set of protocols for internetworking, i.e. for data communication between multiple networks, as well as host-to-host data transfer, and application-specific data transmission formats.