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Local Area Network
Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations
4,003 Questions
In tcp ip the protocol that garuntees packet delivery is ip?
No, the protocol that guarantees packet delivery is TCP.
No, the protocol that guarantees packet delivery is TCP.
No, the protocol that guarantees packet delivery is TCP.
No, the protocol that guarantees packet delivery is TCP.
What is used to separate the host address portion of an IP address from the network address?
The subnet mask is used for this purpose. It indicates how much of the address is for network, and the remaining part is for the hosts.
transport
Which network class can support the most hosts?
The classful network A provides 16,777,216, the most available in classful networks.
Unfortunately a class A network only allows for 256 possible networks.
This is of course IPv4 stuff
Remember the entire IPv4 address space is 32 bits wide
In class A the network mask is 255.0.0.0 meaning that the first octet or eight spaces are reserved for networks and the remaining 24 bits are available for host.
OK so the number of host are 2^24 or 16,777,216 English 16 million 777 thousand and 216 hosts
And don't forget all networks and subnets require reserving the first and last address for the network and the broadcast address.
Mesh topology minimum required number of computers?
The minimum needed to make the mesh. "Mesh" could refer to several types of groups of computers. There is grid computing, where a large number of small computers all work in parallel. Modern supercomputers, like those used by physicists and weather forecasters (seriously), use grids. Another is distributed computing. Nearly identical in description, the difference is in parlance. Grid may refer to large numbers of computers at one company under control of a dedicated group, where distributed computers usually means dispersed computers. An example might be many computer systems at top research universities working on the same problem. Another is cloud computing. Clouds are groups of computers not necessarily working together on something. The Internet is one example. Seti@Home is famous for harnessing the individual power of millions of (simple, low-power) computers throughout the Internet cloud to create an ultrapowerful distributed grid. You no longer need to create your own supergrid software. You can hire a company like grid.org to solve your problem. For example, analyzing chemicals to see if they'd have any effect on cancerous cells.
How are computers on a LAN connected together?
They're usually connected by exclusive hi-speed phone lines. The phone lines do not connect to any phone network - just to each of the other computers. This makes the WAN a secure network for transferring data between sites.
Computer networking is an engineering discipline that intends to analyze communication method among many computer systems that are connected or networked together to exchange information. This may depend on the theoretical application implementation like computer sciences and telecommunication.
What is the maximum length of cat 5 cable?
Roughly about 325 feet or 100 meters. That is the suggested maximum length. Some installations have achieved longer. The longer it is, the less reliable it is (ie packet delivery problems).
You could throw a switch in the middle to achieve 600 feet if needed.
What is meant by host in computer network?
A host is an internet term in which a created website is placed on a server provided by a 2nd party. The website created is then displayed on the www. In this case, the 2nd party is the host. For example, bluehost, justhost, godaddy.com.
What are some applications that can benefit from a network that has VLANs?
Encrypted communication between 2 points.
What is the difference between cat6 and cat 7 cable?
1. CAT6a is the improved version of the CAT6 cable.
2. Both Gigabit Ethernet up to 100 meters.
3. CAT6a is rated for up to 10Gigabits while CAT6 is only rated for 1Gigabit. It is able to achieve this because it operates at 500Mhz; twice that of the 250Mhz operation of the CAT6 cables. CAT6 cables may be able to achieve 10Gbps but only in when short lengths of cable are used.
4. CAT6a has twice the bandwidth of CAT6 cables.
5. CAT6a is better at resisting alien crosstalk compared to CAT6.
6. CAT6a cables are muchthicker compared to CAT6. With the added size of CAT6a comes a significant increase in weight, which affects how many cables you'll be able to fit into a cable tray, as well as where you can place them. Cable tray capacity is drastically reduced when you're using Cat6a cable as they also require a larger bend radius.
- CAT6a costs a lot more compared to CAT6 (approximately double). However, CAT6a is your best bet if you want some future proofing and can afford the extra cost; doing so saves you from having to gut your walls again once CAT6 cables are no longer sufficient for your needs and you need to upgrade
How many ports are there in a network switch and how are they connected?
There are typically 5 to 24 ports on a network switch, though real high end switches can house more.
Internally the ports are connected with copper wires.
Super Speed USB is faster and is usually identified by a blue port or wire.
Basically USB 2.0 is High Speed (480Mbps) and USB 3.0 Super Speed (5Gbps).
What is the diffenece between managed and unmanaged switch?
A managed switch offers more functionality than an unmanaged one. For example, I know of at least 2 network admins who use managed switches simply because they can buy a massive switch and maybe have 7 or 8 ports left over and then simply disable them. Thus preventing somebody hooking up their laptop and getting access to the network. See the related link for alot more info.
Which field of ip address is changes from router to router?
The TTL will be reduced by one every time it passes a router. Because this changes the IP header, the checksum also has to be recalculated.
The TTL will be reduced by one every time it passes a router. Because this changes the IP header, the checksum also has to be recalculated.
The TTL will be reduced by one every time it passes a router. Because this changes the IP header, the checksum also has to be recalculated.
The TTL will be reduced by one every time it passes a router. Because this changes the IP header, the checksum also has to be recalculated.
Why fiber optic cable is better than twisted-pair and coaxial cable?
Because fibre sales having a high capacity and maximum bandwidth compared with twisted pair cable and coaxial cable. It's your choice to buy it from online stores or offline. if you want it online many websites offer online fibre cables. Check fibre sale website its good I also use this product.
What is Network and Host portion in an IP address?
Here are 3 facts about the network portion of an IPV4 address.
1. identical for all hosts in a broadcast domain
2. varies in length
3. is used to forward packets
How many broadcast domain are created when you segment a network with 12-port switch?
Zero.
No collisions can occur within a full-duplex environment, as transmit and receive operations are performed on another set of wires. Thus, no collision domains would exist. Carrier Sense Multiple Access with Collision Detection (CSMA/DC) is not part of a full-duplex network for this reason.
This IP address can work with a variety of different subnet masks.
This IP address can work with a variety of different subnet masks.
This IP address can work with a variety of different subnet masks.
This IP address can work with a variety of different subnet masks.
How many hosts addresses can be assigned on the 10.0.0.0 with a mask of 255.255.255.0?
254 -- 24 bits of the 32 bit format are fixed (10.0.0 is fixed, so in binary that's 00001010.00000000.00000000) leaving you with the final octet to work with. This octet will yield 256 unique values, but 0 (00000000) and 255 (11111111) are reserved so only 1(00000001) through 254 (11111110) are valid hosts.
This protocol would be the NIC (Network Interface Card). The NIC takes frames from layer 2 and converts them into electrical siginal's
