Computer Networking

A Farm.

it has a turbo and that makes it go fast

World Wide Web The internet

valid IB

EIA 568A/B standards apply.

Because when you perform firmware update you loose all your settings and you will have set it again.

HTTP is short for Hyper text transfer protocol. HTTPs is short for hyper text transfer protocol (security). So when ever you are using a secured site like facebook or twitter HTTP turns to HTTPs.

On data links with long transmission delays (e.g. communication satellites) sliding windows protocol allows multiple packets to be in transit pending ACK packets back from the receiver (up to the limit of the window size), which allows for nearly continuous transmission of packets through the data link.

On data links with long transmission delays (e.g. communication satellites) stop and wait protocol forces the transmitter to wait until it receives an ACK packet on every packet sent. If the transmission delays are long enough, the data link may be quiet and completely idle for the great majority of the time which is a serious waste of the resource.

It depends on whether you are subnetting or not. If not, the default subnet mask would be 255.255.255.0

When you spoof an IP address, you make it look like you're connecting to the internet with a computer that you're not.

When you hide your IP address, it's so people trying to find your IP address can't find it.

Network discovery is a scanning tool that allows 2 devices to recognise each other. This can be compared to bluetooth capabilities of smart phones where they can share data.

Secure Shell (SSH) uses TCP port 22, so that is the port that you would need to forward.

You may have added them as a friend but if you visit someone's profile page and it says add friend on their profile it means they deleted you as a friend. Deleting friends is common on Facebook and most times if you have a lot of friends you won't notice it.

It is basically very easy depending on the class. When you start to figure in subnet masking, things get complicating. I'll start with the simple bit. I'm assuming you are questioning for IPv4.

Say you have a computer with the IP address 10.14.10.88, with a subnet mask of 255.0.0.0. This means that you keep the numbers that correspond to the 255 and replace the other numbers with 0. So the network address of the network this computer is connected to is 10.0.0.0.

Another example would be if you are given an IP of 172.155.8.101/16. The /16 is the subnet mask. It means you keep the first 16 bits and drop the rest to determine the network address. So the Net Address is 172.155.0.0. In an IPv4 address, every number number between a dot is 8 bits. So if the IP address was instead 172.155.8.101/24, then the net address would be 172.155.8.0.

But what if the subnet mask isn't 255 or divisible by 8, depending on which method is being used?

Say now we have a computer on the network 148.76.55.189/27 and we want to find the net address on that. Well the first three are easy 148.76.55.x, but now what? Let's convert both the subnet mask and the ip address into binary.

The subnet mask is 27 ones, followed by 5 zeros. Remember, IPv4 is made up of four parts, each part being 8 bits, and the 27 means you need to keep the first 27 bits. So our subnet mask is 11111111.11111111.11111111.11100000

Next, we need to convert the ip address we were given to binary. It would probably help if you used an online tool for this if you are not familiar with binary. Our ip address comes out to be 10010100.01001100.00110111.10111101

Now, much like before, we keep the amount of bits specified by the subnet mask, then turn the rest to zeros. So we have a network address of 10010100.01001100.00110111.10100000

If we convert this back to decimal, then we learn that the final number is not zero like before, but is in fact, 160. So the network address for 148.76.55.189/27 is 148.76.55.160.

It can take some practice with subnet masks that aren't full bytes, but eventually you will get the hang of it. I will add a nice binary x decimal conversion tool to the related links. Just remember when you convert using the tool, make sure that if it doesn't turn out to be 8 bits, add zeros to the beginning of the number to make it 8 bits. For example, the tool converted 55 to 110111, which is only 6 bits. So I add two zeros to the beginning of it to make is 8 bits, 00110111. It's no different than adding zeros to a decimal number like 19. 19 and 00019 are the same. See what I mean?

1000base LX

Allow a program or feature though Windows Firewall link

This new format sucks!

Those two technologies have nothing incomon except for the fact that both address mass storages. RAID is a technology to span data over multiple disks to either gain more speed (seldom e.g. RAID0) or gain redundancy so that the system remains functional when one of the mass storages fail (e.g. RAID1 or RAID5). SAN means that there is a dedicated network instead of a local bus connecting the hostadapter to the storage. These networks use often similar protocol as on a local buses (e.g. iSCSI). Data is not aqured on a file per file base like in a server instead the host requests the specific blocks he would like to read. Advantages of a SAN may be fast switch over of mass storages from one Node to an other (storage failover if a node fails), storage sharing (one big disk [might even be a RAID system] is split up into two or more "virtual" disks which are then handeled by the respective node) or a centralized fast access for backup storages. Important thing to know is: both technologies may be (and are often) combined to get the best of both worlds.

The Virtual Switching is a technology allowing multiple switching functions to happen in one physical device or single functional switching to happen in multiple physical devices across network, while in the situation of a real switch, switching is conducted in one physical switch. Virtual switching technology enables a single switch to be used for many different applications. Each different function may have its own discrete performance and security controls. Using virtual switching technology, Service providers can create a dynamic service mix, as desired, without requiring new hardware and enabling the gradual evolution to include new services or a common control plane. Virtual switching is a core concept in the Multiservice network switching architecture.

TCP of course because both programs check integrity of sent packages and the delivery status it can be accomplished with TCP (UDP does not support such features).

There are really three basic types of Network topologies. They are Star, Bus, and Ring. Let me explain them to you.

Star - All computers and devices are connected to a centrally located hub or switch. The hub or switch collects and distributes the flow of data within the network. It's better to use a switch than a hub because a switch transmits the data to the intended recipient rather than to all hosts on a network.

Bus - All computers and devices are connected in series to a single linear cable called a trunk or sometimes called a backbone. Both ends of the trunk must be terminated to stop the signal from bouncing back up the cable. Because the bus topology does not have a central point it is difficult to troubleshoot problems. Also, a break at any point along the bus can cause the entire network to go down.

Ring - In this topology, all computers and devices are connected to cable that forms a closed loop. Each computer on this type of topology acts like a repeater and boosts the signal before sending it to the next computer. It transmits data by passing a "token" around the network. Hence this type of network is commonly called a token ring network. Similar to the Bus topology, if one computer fails, the entire network goes down.

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If the IP address of a computer or server that you have recently accessed by its hostname has changed, if you attempt to access the host name again, it will not work. Windows maintains a DNS cache to store the names and IP addresses of systems that you access. If the IP address of one of those systems change before the item expires from the cache, you will need to flush your DNS cache. In windows, you can flush the DNS cache by performing these steps: # Click on Start, then click on Run # Type 'cmd' and click OK # At the command prompt, type in 'ipconfig /flushdns' and hit enter # After you get the success message, type in 'exit' and hit enter

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You should use an appropriate mask for any task which it likely to give off fumes or dust. Remember there are different kinds of masks for different jobs, make sure you choose the one for the job in hand. I hope this answers you question

I am assuming you have bulk cable available, RJ-45 connectors and a crimping tool. Wire one end of the cable using the T568-A wiring standard, and the other using T568-B. That's your crossover cable.

If it's just a direct connection from your laptop and pc, you need a CROSSOVER cable. Otherwise consider getting a USB pen drive if the data isn't that big. It plugs into your USB port and is very portable and also pretty cheap.