Computer Networking

A multimeter can be used to test that cables are straight-through and not a cross-over. I've used a battery and torch bulb, with two wires as probes, to test cables without any problems. Take care to place each probe on the correct contacts at each end of the cable.

If you cannot connect to the remote server by host name, but can by IP address-which utility should be used to identify the cause of the problem?

iCloud takes your purchased music, books, apps and your mail, calendar, documents and photos and stores them on an Apple server. Then you can, using Apple ID, access it from any other compatible device. Compatible devices are: iPod Touch, iPhone, Mac and PC

A. To configure a route to the first Layer 3 device on the network ...

A router

the inventor of star topology is Sean Ross Remigio that connect the pc to stars.

Token Passing

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Yes.

A computer's memory is nothing but a bunch of switches... "On" or "Off"

So everything must be represented in a series of 1's and 0's, representing the "on" and "off" of the bits.

The bits are in groups of 8, called a Byte.

So, for example, if you were to save the letter "T", it would be saved as:

01010100

Error detection at data link level is achieved by using a Frame Check Sequence (FCS) method like Parity, Checksum Calculation or Cyclic Redundancy Check (CRC).

In windows start the command line "cmd.exe" and type: ipconfig /all this should show you your adapters IP

Physical

CSMA/CD operates at the physical layer is the bottom level in the OSI (open systems interconnection) seven layer model, which is used to standardize and simplify definitions with regard to computer networks. This layer defines all physical and electrical specifications for devices used to interface to the network, and it deals with data only in terms of rawbits (i.e., it does not recognize MAC addresses, IP addresses and packets).

whether networks or anywhere else, iso stands for International Organisation for Standards...

One of the most famous ISO international body organization that focuses on publishing ISO standards relating to computer network standards is the American National Standards Institute or simply ANSI.

All you have to do is run a CAT-5 cable from one of the ports on your wirless router to the Uplink on your HUB....also keep in mind that when you plug something into the uplink port sometimes there is another port that you MUST LEAVE OPEN in order for the hub to work properly....to find out if this is the case look up the router on the manufacturer's website....and if you don't know what model it is or you're having trouble finding out the manufacturer usually you can find a sticker on the hub that has a combination of letters and/or numbers....take one of them at a time and google them....usually at least one of the numbers will let you know what company makes it and you can go from there

Computer Networks : Computers are connected generally in the same physical location, using different styles e.g. Token ring, Star, Serial connection, etc. Also called as LAN, Local Area Nerwork. U will find it in a library, small offices, in the same building, computer labs, cyber cafe's etc, etc. or computer network can be set up in your home also ...

Distrubuted Systems : Also can be considered as a type of computer network but in a much large scale. Generally called as WAN, or Wide Area Network. Different computers are connected at different physical locations across cities, states, etc. Using distributed systems, various computer programs can be run or executed remotely irrespective of physical locations, so as to use the more meomory and processing power of other computers.

aux

Application layer is designed to convert user data to language that can be understood by Presentation layer. For instance, http is at Application layer and converts people language to language that can be understood by browsers.

Internet Protocol, IP, is a data oriented protocol used for communicating data across a packet switched internetwork. It is one of the main components of our ability to connect to the internet. The most current and popular network layer protocol is IPv4.

The simple answer is that there aren't enough wires; RJ11 has 4 wires, and RJ-45 uses 8 wires. In addition, the RJ11 wire is not twisted, so there is a problem with crosstalk.

Two of the most common "Communication Protocols" are typically ( not always ) referred to together. Transmission Control Protocol, and Internet Protocol. Although they are both communication protocols, they are not the same thing. They are referred to together only when necessary, such as configuring a PC's network, as you are configuring both. Both have been around since mid 70's when they were invented, but TCP was never "added." They are just referred to together when appropriate.

network card

Yes. USB cables, bluetooth, there are many other ways.