Local Area Network

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.

With client to server, many people are downloading data from one central location - a one to many relationship.

With peer to peer, many people are downloading data from many locations - a many to many relationship.

if you mean local vs. internet then i would say internet. (local is usually based around 198 numbers)

One wire pair handles data transmission, while another wire pair handles data reception.

The CPU socket gets placed more central but closer to the edge of the board farthest from the rear of the case. The idea is that a front fan, wind tunnel will feed air directly toward the CPU without obstruction.

TCP and UDP

Correct:

UDP (User Data-gram Protocol) is a communications protocol that offers a limited amount of service when messages are exchanged between computers in a network that uses the Internet Protocol.

UDP provides two services not provided by the IP layer. It provides port numbers to help distinguish different user requests and, optionally, a checksum capability to verify that the data arrived intact.

TCP (Transmission Control Protocol) is a set of rules (protocol) used along with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet. While IP takes care of handling the actual delivery of the data, TCP takes care of keeping track of the individual units of data (called packets) that a message is divided into for efficient routing through the Internet. (TCP/IP) is the know definition by most.

Yes, it can if the client is offering resources to others. It is important to note, however, that the client still is using client software and is not considered to be a server even if offering resources to others. That is, its role may change temporarily but it is still running client OS software.

The "star" topology is the most common.

We know that a router is a layer 3 device means Network Layer.

Router is a only device that can forward only uni cast massage.

If u configure the router well and connect the two separate network, i think the network will go finely.

The most popular connectors found these days on the ends of network cables are commonly called RJ45 connectors.