Local Area Network

A PVLAN on a network is a broadcast domain. All of the hosts on that VLAN can communicate with the other members of the same VLAN. PVLANs allow traffic to be segmented at the data-link layer (layer 2) of the OSI model, limiting the size of the broadcast domain.

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Answer

A private VLAN contains switch ports that cannot communicate with each other but can access another network. These ports are called private ports. Each private VLAN contains one or more private ports, and a single uplink port or uplink aggregation group.

A typical application is at a hotel where each room has a port that can access the Internet. In this situation it is undesirable to allow communication between rooms. Another application is to simplify IP address assignment. Ports can be isolated from each other while belonging to the same subnet.

The network device forwards all traffic received on a private port out the associated VLAN's uplink port, regardless of VLAN ID or MAC destination address. Packets received on an uplink port are forwarded in the normal way (i.e. as for non-private VLANs) for all types of packets. Note that while private VLANs provide isolation at layer 2, layer 3 communication may still be possible

Round cables obstruct air flow less inside the case

The difference between a cross cable and a state cable is that a cross cable, or crossover cable, is used specifically to connect two of the same devices.

Yes - a repeater would be used to extend the distance of the LAN segment. Repeaters were used primarily in coaxial copper networks but are rarely found in LANs anymore.

Cannabis has serious consequences and only recently have people found out how bad it actually is.

A networking group is a group of business people that get together on a periodic basis. There are specific companies that run networking groups strictly for business networking such as BNI. You join a BNI group that has members (business owners or managers) from all different business - usually no competitors are in the group - there is one plumber and one electrician and one printer and one insurance salesman, etc. The purpose is that you would become a customer of the members in your group and they would become your customers. Also, if anyone ever asked you for a referral, you would recommend a member of your BNI group. But there are other networking groups that exist for a different purpose. The most obvious is the Chamber of Commerce. They exist to promote and help businesses in their community; however, if you joined the Chamber, you would still be in touch with a group of business owners and managers who are decision makers and might become your customers. Your local PTA or gym could also be a networking group.

The best way to protect computer or network protected against worms is by regularly updating updates for windows and antivirus, also by using hardware in network.

This could be a couple of things, but you are likely referring to TCP/IP protocol broadcasts. A broadcast address is when a data packet is sent to a special address to which all nodes on the network are supposed to accept and optionally respond to. While a broadcast address is defined for the entire network, this is not implemented in practice. For an IP subnet, the last address in the subnet's address space is the broadcast.

For example, if my subnet is defined as 192.168.1.0/24 (very common for consumer network hardware including Wi-Fi), this defines the following: the network itself is identified as 192.168.1.0, the subnet mask is 255.255.255.0 (24 binary 1s in a row), the usable host addresses are 192.168.1.1 through 192.168.1.254, and the broadcast address is 192.168.1.255.

star topology

Four pairs

Wan- is wide area network , vpn - is a virtual private network, vpns exist within lans, lan exist within wans.

Advantage of Doamin Enviroment 1.Data Cetertralization 2.Security 3.Effictive Permission 4.Single Platform to manngae whole network 5.User can login to any computer and access their rsourses any time and much more

This question if VERY broad and has many answers. Lets just cover a bit until i get bored of tryping ay ;)

Well Improving LAN performance depends on alot of things. First of all we need to know what your using, These days most LAN's would be using your cat5 100BaseTx which is that blue network cable... This is usually UTP (Unshielded Twisted Pair). Now as this is unshielded you may be getting electromagnetic radiation causing excess collision in your network so upgrading to Shielding the cables may make a difference but this is uncommon.

If you are using a standard Hub it may be time to upgrade to a Router, The difference is a Router remembers where a client computer is and once located sends data to that specific computer where as a hub sends all data over the network to all computers on the network all the time... Routers are also more secure for this reason.

Identify your topology and ensure its the best for you. Now a token ring network is best for high trafic networks but would slow down a low traffic network, as a star network is great for low traffic but under high traffic suffers collisions, etc.

So I've just assumed that your using 100baseTx, Maybe your not and maybe is time to upgrade, Hey maybe you are and It still may be time to upgrade. the fastest networks available are probably fiber optics which comes in multi or single mode. Depending on the quality you need and how much your willing to pay is all where this comes into play... Multi mode would be best for a LAN where single mode for a WAN.

Well I hope this was of some help but really it all depends on your own network and at what point its being slowed down. Enjoy

Class A, B and C Based on the split of the 32 bits, an IP address is either Class A, B or C, the most common of which is Class C. More than two million Class C addresses are assigned, quite often in large blocks to network access providers for use by their customers. The fewest are Class A networks, which are reserved for government agencies and huge companies. Although people identify the class by the first number in the IP address (see table below), a computer identifies class by the first three bits of the IP address (A=0; B=10; C=110). This class system has also been greatly expanded, eliminating the huge disparity in the number of hosts that each class can accommodate (see http://www.answers.com/topic/cider). See http://www.answers.com/topic/private-ip-address-technology and http://www.answers.com/topic/ip-technology. NETWORKS VERSUS HOSTS IN IPV4 IP ADDRESSES Maximum Maximum Number ofClass Number Hosts Bits used in Number of per Network/Host Class Range Networks Network ID ID A 1-126 127 16,777,214 7/24 B 128-191 16,383 65,534 14/16 C 192-223 2,097,151 254 21/8 127 reserved for loopback test Networks, Subnets and Hosts An IP address is first divided between networks and hosts. The host bits are further divided between subnets and hosts. See subnet mask.

Preboot Execution Environment (PXE)

When one wants to connect multiple LAN segments together, the point-to-multipoint type of remote wireless bridge is used. The connection avails the network resources.

A NIC operates at those two layers.

Windows Internet Name Service (WINS) is Microsoft's implementation of NetBIOS Name Service (NBNS), a name server and service for NetBIOS computer names. Effectively WINS is to NetBIOS names, what DNS is to domain names — a central mapping of host names to network addresses. Like DNS it is broken into two parts, a Server Service (that manages the encoded Jet Database, server to server replication, service requests, and conflicts) and a TCP/IP Client component which manages the client's registration and renewal of names, and takes care of queries.

RIP - Only for small networks or those with underpowered hardware that either don't support or don't have the resources for a better routing protocol.

IGRP - Basically outdated and supplanted by EIGRP. Again, useful if you can not use EIGRP due to router limitations.

EIGRP - Useful in Cisco-only networks of basically any size. EIGRP is an extremely robust and efficient protocol that suits nearly any need other than inter-organization routing.

OSPF - Useful everywhere. It's standardized, so it's not limited to a particular vendor. Most appropriate in large multi-vendor networks. It has a higher CPU load than EIGRP does, and it requires more granular control from an administration perspective.

Yes, True

Configuration weakness

A LAN, or "Local Area Network" allows multiple computers within a small area, such as a home or office, to interact with each other, and common accessories such as printers. A MAN or "Metropolitan Area Network" is used in a campus or city to allow access across larger areas, and is often used in universities. A WAN or "Wide Area Network" allows access throughout very large areas, and includes the Internet

Yes. Each MAC address (each network card has its own MAC address) requires an individual IP address on a network.

In XP you can bridge the connections in Network Connections, but I have never actually figured out why this is preferrable (perhaps if each card is connected to separate networks). This however on the same network will show no improvement unless ran thru a different router using a different address with a different subnet as XP will only default to one card or the other and will not use both at the same time.

the physical layer (layer 1) manages hardware connections, handles sending and receiving binary signals, and handles encoding of bits.