Computer Networking

ping 127.0.0.1

CompTIA A+ page 972

The function of a router is to switch and filter packets, and to route traffic between different networks, thereby reducing the size of "collision zones". Broadcast zones are basically all that define a network. Therefore, if a router were to forward broadcasts, it would actually be joining the two networks together into one larger network, which, aside from security implications, would create a giant collision zone and reduce network performance.

PKI must use asymmetric encryption because it is managing the keys in many cases. This implies the use of public and private key pairs, which is asymmetric.

Check on the Related Link to look for the Fastest Internet in your Area.

If you are in a small home network and not in a Domain try;

ping -a xxx.xxx.xxx.xxx (replace x with the IP Address)

If you are in a larger network with a DNS Server you can use;

nslookup xxx.xxx.xxx.xxx

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It used to be that Ethernet networks were slower than fiber, T1 and T3 lines. However, Ethernet now has the gigabyte standard, which sends information across the wires at 100 gigabits per second, which is a reasonable speed for home users with several computers networked together. Ethernet is fast enough to transfer large files across a network without waiting hours for the file to complete the transfer.

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Ethernet cables are a standard, so it makes it easy for a user to purchase the right equipment and quickly install the cabling. For instance, if the user purchases a router or hub at the local computer hardware store, the Ethernet cables can be simply inserted into each port on the hardware devices. Computers often come pre-built with Ethernet network adapters, so users can insert cables quickly into the computer without any kind of network administration knowledge. For this reason, most household networks use Ethernet cabling standards.

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Finding other types of cables like coax or fiber is more difficult for the average home user. Users who accidentally break a cable can find a replacement at almost any computer store. This makes it convenient to purchase equipment and replace any cables that break. It is also easy to find hardware that supports Ethernet connections. Most local computer hardware stores stock shelves with Ethernet network adapters, hubs and routers that conform to the Ethernet standard.

Read more: [http://www.ehow.com/list_5907620_advantages-ethernet-protocol.html#ixzz2R9mRs1n4 The Advantages of Ethernet Protocol | eHow.com] [http://www.ehow.com/list_5907620_advantages-ethernet-protocol.html#ixzz2R9mRs1n4 http://www.ehow.com/list_5907620_advantages-ethernet-protocol.html#ixzz2R9mRs1n4]

Each network card is imprinted with a MAC (Media Access Control) address, which is a 48-bit hexadecimal code that is unique to each card. The MAC address will look something like 00A0CC5CFF5C.

ok The protocol is HTTPs and the port number is 443

conquerorthecomputer.blogspot.com

GSM (Global System for Mobile communication) is a digital mobile telephone system that is widely used in Europe and other parts of the world. High-Speed Circuit-Switched Data (HSCSD)is circuit-switched wireless data transmission for mobile users at data rates up to 38.4 Kbps POTS stands for Plain Old Telephone System GPRS (General Packet Radio Services) is a packet-based wireless communication service that, when available in 2000, promises data rates from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users. Integrated Services Digital Network (ISDN) is a set of CCITT/ITU standards for digital transmission over ordinary telephone copper wire as well as over other media. IDSL is a system in which digital data is transmitted at 128 Kbps on a regular copper telephone line (twisted pair) from a user to a destination using digital (rather than analog or voice) transmission, bypassing the telephone company's central office equipment that handles analog signals. IDSL uses the Integrated Services Digital Network (Integrated Services Digital Network) Basic Rate Interface in ISDN transmission code. 1. Possible answers: cable modem and DSL

A modem is a device that allows a single computer to connect to the internet, it requires a username and password to connect usually. A router connects multiple computers and is always connected. It does NOT require a username or password to connect to the internet. Routers can also be wireless, whereas modems can not.

Of the 128-byte internal RAM of the 8051, only 16 bytes are bit-addressable. The rest must be accessed in byte format. The bit-addressable RAM locations are 20H to 2FH.

they give advice and support

In the early 1980s, the International Standards Organization (ISO) developed the Open Systems Interconnect (OSI) model, which was defined in ISO standard 7498-1, to standardize the way devices communicate on a network. This model has seven layers In the early 1980s, the International Standards Organization (ISO) developed the Open Systems Interconnect (OSI) model, which was defined in ISO standard 7498-1, to standardize the way devices communicate on a network. This model has seven layers

It is a Local Area Network (LAN). It is the type of computer network commonly found in a house or on small business premises.

1. Physical layer

To connect to a remote computer, that computer must be turned on and connected to the network or the internet and one needs to permission to connect. Click the "Start" button and then in the "search box" type "remote desktop connection". In the list of results click "remote desktop connection". In the "computer" field, type the name of the computer that you want to connect to and then click "connect". Enter your username and password and then click "OK". Now you can use the remote computer.

1. straigth cable are more effective than the crossover cable....

1. Easy Communication and Speed It is very easy to communicate through a network. People can communicate efficiently using a network with a group of people. They can enjoy the benefit of emails, instant messaging, telephony, video conferencing, chat rooms, etc. 2. Ability to Share Files, Data and Information This is one of the major advantages of networking computers. People can find and share information and data because of networking. This is beneficial for large organizations to maintain their data in an organized manner and facilitate access for desired people. 3. Sharing Hardware Another important advantage of networking is the ability to share hardware. For an example, a printer can be shared among the users in a network so that there's no need to have individual printers for each and every computer in the company. This will significantly reduce the cost of purchasing hardware. 4. Sharing Software Users can share software within the network easily. Networkable versions of software are available at considerable savings compared to individually licensed version of the same software. Therefore large companies can reduce the cost of buying software by networking their computers. 5. Security Sensitive files and programs on a network can be password protected. Then those files can only be accessed by the authorized users. This is another important advantage of networking when there are concerns about security issues. Also each and every user has their own set of privileges to prevent them accessing restricted files and programs. 6. Speed Sharing and transferring files within networks is very rapid, depending on the type of network. This will save time while maintaining the integrity of files.

2 of the 4 pairs are actually used. However, if the connection works at 1 Gbps, then all 4 pairs are used.

2 of the 4 pairs are actually used. However, if the connection works at 1 Gbps, then all 4 pairs are used.

2 of the 4 pairs are actually used. However, if the connection works at 1 Gbps, then all 4 pairs are used.

2 of the 4 pairs are actually used. However, if the connection works at 1 Gbps, then all 4 pairs are used.

a computer, a router, a server... they're all nodes.

There really is no default subnet mask - any network equipment that you set up will require a netmask be provided. The netmask you provided only refers to a specific host; the network on which the host resides can be split up in numerous ways, depending on how the network admins set it up.

DNS

To load up web pages we use the HTTP protocol which runs on port 80 and HTTPS port 443. Of course there are many more protocols than just that. I will list some below...

For associating host names...

DNS Port 53

For web based email.

IMAP port 143

No. The Magicjack has to plug into the USB port of a computer, and the computer has to be on for the phone to work.

It's a type of computer cable where some of the strands inside are "crossed over" compared to a "straight through" cable. You only need a crossover cable if you are connecting a computer directly to another computer. If you are connecting a computer to any other device like a switch, or a router, then you use a straight through cable, which are easier to find and cheaper. You can google for a crossover cable and it will show you a picture of which pins are crossed over.