Essays Tagged: "Data Link Layer"
Wide Area Networking
technologies generally function at the lower three layers of the OSI Model: the Physical Layer, the Data Link Layer, and the Network Layer (all layers are shown in order below). . Bridges, routers and ... e shown in order below). . Bridges, routers and multiplexers and other devices are used for correct data transmission. Some WANs are extremely widespread (global), but most do not provide true global ...
Subjects: Science Essays > Computer Science > Internet and networking
Data Communications: Wide Area Networks
es generally function at the lower three layers of the OSI reference model- the physical layer, the data link layer, and the network layer.Types and Characteristics of WANsWide area networks are every ... hnique whereby a router can dynamically initiate a call on a switched circuit when it needs to send data. In a DDR set-up, the router is configured to initiate the call when certain criteria are met, ...
Subjects: Science Essays > Computer Science > Computer Ethics
The ABC'S of 'Hacking' Part 2
for hackers as point of entry in their attack. Because ARP works at both the network layer and the data link layer it can shutdown a network's data transfer with the outside world by confusing comput ... ss to protected material on a network that most hackers employ. It gives them full control over the data as it passes between the target and a gateway. Stopping ARP poisoning by disallowing it's funct ...
Subjects: Science Essays > Computer Science > Internet and networking
Switching technologies
high speed modems whether they be DSL or broadband cable modems. These modems transmit and receive data that your computer generates on your behalf. This is done in a very orderly fashion by your ope ... Next your computer would generate a TCP header and the network layer an IP header. After that your Data Link Layer would put this information in a logical format and put the MAC information at the fr ...
Subjects: Science Essays > Computer Science > Internet and networking
Healthcare Technology
device. The most helpful point of care technology introduced to the industry has been the Personal Data Assistant. In general, wireless computing technology allows caregivers to access, update, and t ... easily facilitates the deployment of these devices.POC devices use, and may originate, some of the data elements and transactions governed by HIPAA. They must also be able to communicate HIPAA requir ...
Subjects: Science Essays > Technology
The main benefits of the OSI model
puter System Interface) • Network Interface Card (NIC) Layer 2 Layer 2 of the OSI model is the Data Link layer. In this layer it provides the function of: • Allowing a device to access the n ... e to access the network to send and receive messages • Offers a physical address so a device's data can be sent on the network • Works with a device's networking software when sending and re ...
Subjects: Science Essays > Computer Science > Internet and networking
Description of OSI layers
Description of OSI layersOSI ModelData unit Layer FunctionHostlayers Data 7. Application Network process to application6. Presentation ... ions and reliabilityMedialayers Packet 3. Network Path determination and logical addressingFrame 2. Data Link Physical addressing (MAC & LLC)Bit 1. Physical Media, signal and binary transmission[e ... on layer determines the identity and availability of communication partners for an application with data to transmit. When determining resource availability, the application layer must decide whether ...
Subjects: Science Essays > Computer Science > Internet and networking
In the Late 70
ization (ISO) developed OSI. The job of the ISO is to set standards for networking, character sets, database access and much more. The main goal of the ISO was to make OSI the standard protocol for wo ... ocol stack or layers of the model, and then up the layers of the stack on the other machine. As the data travels down the stack, it picks up headers from each layer (Except the physical layer). Header ...
Subjects: Science Essays > Computer Science > Internet and networking