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What do logical topologies describe?
A logical topology shows how a network is configured logically rather than physically. The main difference is that you could have 10 routers, 25 switches, and 5,000 computers in a logical topology and it doesn't matter where they are on the screen, it matters how they are connected to one another.
What is a network hub/switch?
A hub is a repeater reading electronic signals from a cable and replicating them on all other interfaces (broadcast). a switch operates at Layer 2 of the OSI model forwarding frames to their destination/next hop only (rather than to every address connected like a hub). Switches facilitate simulcast (1 to 1), Multicast (1 to many) and broadcast (1 to all).
What is the advantage of using switches rather than hubs?
The major benefit of a switch over a hub is the increase in the amount of collision domains. This allows a switched network to benefit from full duplex transmissions, negating the need for CSMA/CD, and doubling the potential throughput for each network segment. Switches typically operate at layer 2 of the OSI model, using destination MAC addresses within the Ethernet frame to intelligently filter or forward packets.
What is the purpose in a network switch?
Switches connect multiple devices on a network, similar to a hub, but with one difference. Switches have the ability to "remember" which device is connected to which switch-port - and only retransmit to switch-port connecting the destination-device for which the data is intended, thereby creating multiple collision domains (which is good - less chance for lost data). In contrast, a hub simply retransmits the data to EVERY interface on it, creating one huge collision domain.
Why are switches preferable to hub in Ethernet network?
Switches are almost always faster than hubs and send out less data than hubs as well, these reason for this is the same; when a hub gets data from any connected device it sends the message to all connected devices, a switch just sends it to the device that it is for. As such switches are seen as "smarter" devices than hubs, which is another advantage.
Why should you map a network drive rather than just access your network resource from the network group in windows explorer?
Well, mapping a network drive can make it easier for you to access your network resources quickly and efficiently. It allows you to assign a drive letter to the network location, making it feel like a part of your computer. This can save you time and make it more convenient to work with your files and folders on the network.
Advantage of using switches rather than hubs?
See related link
What is the difference between a network hub and a network switch?
A network hub is a dumb device that simply repeats any data which is sent to it. It makes no attempt to interpret the information passed and sends it to all the ports that it has simultaneously, which in turn generates lots of extra unnecessary network traffic.A Switch on the other hand is intelligent and can decode packets of data sent to it and therefore can pass the information to the specific port that the device is attached to rather than sending to all connected devices. This optimizes network traffic.A router is also an intelligent device like a switch but has the added ability to reroute packets over a network between differing sub-nets (IP address range classes).
What is a good way to contain network traffic to a certain area in a network?
One of ways to do that is to use VLAN, but you need switch or router supporting. Also just single router without VLAN can separate networks isolating broadcast and collision domains. Some switches can limit broadcast domains too but they are rather expensive.
What is the difference between a flat network and a hierarchical network?
A level system is a PC system outline approach that intends to lessen expense, support and administration.Flat systems are intended to decrease the quantity of switches and switches on a PC system by joining the gadgets to a solitary switch rather than partitioned switches, or by utilizing system center points instead of changes to unite gadgets to each other.The topology of a level system is not portioned or isolated into distinctive telecast ranges by utilizing switches and switches. Not at all like a various leveled system plan, the system is not physically isolated utilizing diverse switches. The Hierarchical internetworking model is a system outline display initially proposed by Cisco. The three-layer model partitions undertaking systems into three layers: 1.)center. 2.)dissemination. 3.) access layer.
Physical layer in OSI model?
The physical layer is layer 1. It comprises the hardware (routers, repeaters, hubs, switches, etc.) that are used to form the physical basis of a network. They receive, process, and transmit raw electric (or optical) signals, rather than logical data packets.
Is DES algoritgim a Network Security?
Yes, DES can be used for network security, but it is a rather weak one that can be cracked easily.
