Local Area Network

A protocol is a set of rules describing some behavior. In order to communicate in a common manner, the sender and receiver have to agree on the "language" of communication.

A protocol states what those rules are, and because they are a standard, everyone agrees and knows what to expect.

Ethernet

in Class A addresses the first bit identifies the class. The next 7 bits identify the network and the rest are the IP's that belong to that network. However these networks are then broken down using subnets . Class A networks are not given to private clients or small private organisations. So if you want to know how many bits are there for identifying hosts in a Class A network, the answer is 32-8 = 24 bits. However if you mean how many bits are reserved for hosts in your private network space, that depends on your subnet and router. Most routers use NAT to allow multiple hosts to use a single external IP address. I hope this answers your question :)

The metric value of the route

The address of the logical destination network

The type of learning method involved

Broadband does not have a set speed and 3 meg is a measurement of Internet speed. Broadband has a huge range in speed depending on your location and Internet Service Provider or ISP. If you are in a cabled network area it can be say 100meg or 10meg. If you get the broadband service down your phone line it can be 24meg 20 meg 8meg. The actual speed will vary from the advertised speed depending on whether you like far away from the exchange or not. It can even be as low as 0.1 meg or any other speed all the way up to 24meg. To see the speed in your area try putting your land line number into a broadband line check website, one of these can usually be found by searching "broadband line check" on Google.

A mesh topology is where each node or computer has a direct link to every other node that it needs to talk to. This topology is okay for small computer set ups (e.g. upto 6 computers) that need very high speed communication between them.

Its not really used any more because it all gets a bit meshy...

switch

straight cables

NIC's - Network Interface Card

(for windows) choose "setup a home or small office network" from network connections window

assign IP addresses for the PC's

There is no difference between port mapping and port forwarding and both are equal and in some router they are used instead of the other one .

The meaning of these names is that "New connections from the outside to a certain port or port range go to a designated LAN machine. The ports are determined by the kind of server you want to run, (e.g. 80 for a web server) and the IP is the private LAN IP of your web server."

UTP unshielded twisted pair
STP shielded twisted pair
Coaxial cable a.k.a. Coax
Fiber optic cable

Twisted pair cables are usually categorized by transmission ability: CAT3 is for phone use, CAT5 is basic computer network, CAT5e and CAT6 are the latest I'm aware of.

LAN (Local Area Network)

A+ guide to Software
Chapter 8
Page 402

b. A hub forwards data it receives to every device connected to the hub. It is possible for a network devices to pick up data intended for a different device. A switch eliminates this by only forwarding data packets to the correct device whenever possible

lCheck whether all resources are working properly

lConnect appropriate users to the central server

lTo check Network Performance

lTo check network strategy fit the needs of business

lTo check whether network is stable, scalable and Physically and Logically Secure

The network part of an IP address indicates the network to which the host belongs.

The host bits or host part of an IP address points to the actual device that has an IP address on the network. It can be a computer, printer, router or any device with an IP address that has the same network part.

VLANs.

There really is no "port" for icmp but there is a icmp code. If you are looking for the icmp code for echo-reply it is 0 and the echo is 8 For an access list you could do the following: permit icmp any any echo-reply

permit icmp any any echo Or the same using the icmp code permit icmp any any 0

permit icmp any any 8

Peer to Peer everybody is equal, security is slack, and you can only have a few comps on network

server based offers better security, monitor users, more technical and time consuming to set-up, less likely to cause problems if set-up correctly, any amount of comps etc....

NO

Using UTP or STP cable, 100 meters per segment.

Yes if you use a switch and connect it to your modem, then add two routers to it, you can have more than one networks using the same iP address but putting more stress on your modem. But two computers on the same network cannot have the same local IP or every packet that gets transmitted will be corrupted by sending half and half to both machines on the network making internet access glitchy or unusable.

Can a single physical topology support multiple logical topologies give a proper reason.

There are 28 T1 carrier lines in a T3 connection.

The maximum distance specified in the standard is 100 meters. 90 meters of that length may be for the actual horizontal wiring and 10 meters for connections from the horizontal wiring to the workstation.

The total length is 100 meters, however.

Class B, if you are referring to classful addressing schemes.