Local Area Network

Physical

very carefully open.

You get involved with groups or discussions that they are in. You keep up on current events and you communicate positive social ethics...

How can a bridge know whether to forward frames?

Answer:

The bridge builds a list of MAC addresses on either side of the bridge. Therefore, it knows which packets should be forwarded to the other side and which should not. In the example of a packet that uses a MAC address not in its table it can err on the side of caution by forwarding the packet.

A deliberate or accidental attack from inside

See related link.

easy expansion

In terms of the internet:

A domain is a specific 32-bit URL address on the internet usually shown as 4 numbers separated by dots (ex: 70.100.145.175) or as alphanumeric name

(ex: www.wikianswers.com).

A workstation is one computer within a domain.

TLS is updated version of SSL.

1.rightclick on "my computer"

2.select "manage"

3.doubleclick on services&applications"

4.doubleclick on "services"

5.in that window find "MESSENGER"named one

6.if u find, doubleclick on it,the "properties"window will be open

7.on "general tab"set "startup"to "automatic"

8.and below u can see"start"button, click on it >>>ok

open "command prompt"

type "net send <ip of reciever> <your message>

press enter

Network packets travel through different waypoints from A to Z compared to packets traveling from Z to A.

Asymmetric Routing (ASR, also seen:"asymmetrical route") does typically happen in the Internet and does not have to be a problem. Instead, it may be a manually configured - or most likely - automatic optimization.

In trivial local area networks (LANs) ASR is not to be expected, especially if a LAN does not have more than one gateway.

In complex LANs though ASR is possible. It may work fine, especially if packets only travel through routers but not through firewalls.

Typically firewalls expect to see the whole communication of each (e.g. TCP) connection passing through them but due to ASR they might only see packets in one direction.

A firewall may then supress all such communication as a security feature, by e.g. disconnecting such TCP connections.

Did you try Wireshark?

Your connection is slow because with a hub all four of you are sharing the same bandwidth. So if your hub has 100Mbps of bandwidth then each of you will be getting 25Mbps (100/4). On the otherhand a switch allows each of you to have the same bandwidth. So if you have a 100Mbps switch, then each of you will get 100Mbps. Hope this helps,

The function of ARP (address resolution protocol) is to obtain the MAC address of a host, and then map that MAC address to the host's IP address.

This protocol is used to translate physical addresses to internet protocol (IP) addresses.

A physical address can be the MAC (Media Access Control) address of a network card inside of a computer.

The information about which hardware address is associated with which IP address is usually stored in a table on each computer, the so-called ARP table.

In essence, ARP is used so that machines on the same network can find each other. It facilitates data exchange between computers on the same network.

True - Ethernet is the predominant protocol found in LANs today.

TFTP doesn't really overcome the connectionless transport - it doesn't have to because the idea here is transferring files with speed, not quality. It doesn't matter to the protocol is the information doesn't arrive, or arrive correctly, etc.

Depending on the LAN topology, some LAN segments may be limited to as few as 30 clients total, whereas other topologies can handle 1024 or more on a single LAN. More than that and you would need to go to multiple LANs connected via a router.

6

You don't really need to "secure" a folder to send it over the network as the wireless encryption takes care of it for you. You can use a third party folder encryption app or compress the folder and give it a password if you really want to have overkill.

If you're just on a Home network, as in using it in your home, then all you need to do is set the wireless encryption to WPA-2 (it's the highest non commercial encryption) and everything you send to the other computers is encrypted.

Depending on the uniqueness of the password, (length of password, how many numbers, random letters, uppercase letters, etc.) it could take years to decrypt even with a high end "cracker".

2046

Breakdown:

11111111.11111111.11111000.00000000

/21 - 21 bits in network address represented by ones in binary address above. Leaves 2^11th power host addresses left (the zeros to the right).

Equals 2048 host addresses minus the two reserved addresses = 2046

The elapsed times that client and server was communicating to each other.

A class A address is one of the IPv4 class-full networks.

There are 3 of these class-full networks in IPv4; class (A, B, and C).

The entire IPv4 address range is 32 bits long. The address range is broken up into 4 x (8 bits) referred to as octets, and then giving the whole 32 bit address range.

The classes are defined as follows…

Class A = reserve the first octet, or 8 bits for network addresses and leave the remaining three for host addresses. Reserving the addresses for the network is also referred to as the network mask. In other words do not assign any address in the reserved, first octet, to a host.

Class A = 11111111.00000000.00000000.00000000 also known as a /8 bits reserved for net

Class B = 11111111.11111111.00000000.00000000 also known as a /16 bits reserved for net

Class C = 11111111.11111111.11111111.00000000 also known as a /24 bits reserved for net

So the answer is; a class A network has an 8 bit field for the network, and a 24 bit field for the host

there are three types of hub which are following: 1. Active Hub. 2. Passive Hub 3. Hybrid Hub

: Blocking can occur when two switch inputs attempt to access the same intermediate switch channel.