001+Good+Questions

The International Day of Good Questions = December 3rd. The International Day of Good Questions? = Please comment on today's session, to come up with good questions...and provide the most 3 interesting questions .. Thank you for a wonderful day.

Your Name:Rahma herzallah This is a sample template for us all to follow Q1. :ما هي المعايير المتبعة لاختيار كابل معين في تصميم الشبكة ؟ Answers : Must when choosing cables in a cable network design take into account appropriate high performance to suit the right job for example, we have three types of cables are: 1- Coaxial : thin coaxial 185m,diameter 0.6 cm, connect directly to network card , use in networks Base2-10. thick coaxial 500m, diameter 1.2 cm, backbone to connect sub networks to others, Up to distances farther. 2- Twisted pair : like phone cable ,from the inside consists of twisted binary connections of thin copper wire have two types UTP,STP. 3- Fiber optic : these cables have a very excellent feature which is the way data transfer by light rather than electricity is expensive and useless in small networks.

Q2: What the main function of repeaters,bridges,routers? Answer : Repeaters: are used to expand the network space it receives the signal and are strengthened and purified and then pass them to the desired goal. Bridges : main work being done by the bridge is the link between different networks, even if the two networks were using different protocols. Routers:it sends signals from one network to another, even if these networks separated by a number of subnets.

Q3: من الذي يحدد funictional needs? Answer : 1-management user 2- network SME (designer) 3- experts = my name :moaz shehade = = q1: = :ما هي المعايير المتبعة لاختيار كابل معين في تصميم الشبكة ؟ ansewr: معرفة الاحتياجات السرعة المطلوبة المسافة bandwith and security q2:what are the the benfits of net work in business today ? answer: Networking allows you to promote your business. Online networking has its own advantages including these.


 * **Huge Exposure:** Marketing your business online through [|social networking websites] gives you a huge number of prospective clients or customers. YouTube alone has 3.75 million user channels and growing. These are all prospective clients.


 * **More Pointed Exposure:** When you use a [|blog] to provide information on your product or service, you'll boost the number of people that come to your website specifically for your product or service. They've come online to look for a specific product or service, which you are delivering. You aren't marketing to people who may not need your service.


 * **Inexpensive:** Networking online is less expensive than any other type of advertising or marketing. Consider it the online version of word-of-mouth advertising. You could spend millions launching a product through commercials and advertising, or you could spend a few dollars to get a blog going, to register at a few social websites and to interact.


 * **Find Partners:** Networking is not always about getting the customer; social networking online can help you get the partners you need as well. Put up a [|MySpace] page and talk about the new product idea you have. Sell your idea to the 100+ million users on MySpace and find a partner to finance it.


 * **Gauge the Waters:** Networking in business is a fantastic way to find out what others think before you invest time and money on promotions that are not profitable. For example, use your [|Facebook] profile to gauge the interest in your local area in a new club concept you have.

q3:what after wifi? answer:(ngn)

A next-generation network (NGN) is a [|packet] -based [|network] which can provide services including Telecommunication Services and able to make use of multiple [|broadband], [|quality of Service] -enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It offers unrestricted access by users to different service providers. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. [|[1]] From a practical perspective, NGN involves three main architectural changes that need to be looked at separately:


 * In the core network, NGN implies a consolidation of several (dedicated or overlay) transport networks each historically built for a different service into one core transport network (often based on IP and Ethernet). It implies amongst others the migration of voice from a circuit-switched architecture ( [|PSTN] ) to [|VoIP], and also migration of legacy services such as [|X.25] , [|frame relay] (either commercial migration of the customer to a new service like IP VPN, or technical emigration by emulation of the "legacy service" on the NGN).
 * In the wired [|access network], NGN implies the migration from the dual system of legacy voice next to xDSL setup in local exchanges to a converged setup in which the [|DSLAMs] integrate //voice ports// or VoIP, making it possible to remove the voice switching infrastructure from the exchange. [|[2]]
 * In the cable access network, NGN convergence implies migration of constant bit rate voice to CableLabs [|PacketCable] standards that provide VoIP and [|SIP] services. Both services ride over DOCSIS as the cable data layer standard.

In an NGN, there is a more defined separation between the transport (connectivity) portion of the network and the services that run on top of that transport. This means that whenever a provider wants to enable a new service, they can do so by defining it directly at the service layer without considering the transport layer – i.e. services are independent of transport details. Increasingly applications, including voice, tend to be independent of the access network (de-layering of network and applications) and will reside more on end-user devices (phone, PC, [|set-top box] ).