0
Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
What distinguishes switches from repeating devices such as hubs?
layer 3 switches require ip address but hub do not require
IMAP is short for Internet Message Access Protocol. IMAP is a mail retrieval protocol that was developed as a more sophisticated alternative to POP3 . POP3 Stands for post office protocol and was used earlier.
FTP hosting is File Transfer Protocal which means that it gives you a way to move your files such as back ups to another location for storage. Most companies charge a service charge starting around $5 a month.
Another name for an end user device?
A PC is an end-user device. For example, is someone purchases a software license, they would typically have to sign an EULA (end-user license agreement) to agree to be bound to the terms and conditions of the software manufacturer.
A "terminal" is another end-user device (for mainframe computers, etc.)
CCS maybe what your asking about. In theory, Xhtml 1.0 is content oriented and CCS2.1 is layout oriented.
the correct answer is postcript
Database applications are among the most common client-server implementations true or false?
The statement of "database applications are among the most common client-server implementations" is false. Database application main role is to enter and retrieve information from a computerized database.
In communication and computer network research, network simulation is a technique whereby a software program models the behavior of a network by calculating the interaction between the different network entities (routers, switches, nodes, access points, links etc.). Most simulators use discrete event simulation - the modeling of systems in which state variables change at discrete points in time.
There are both free/open-source and proprietary network simulators available. Examples of notable network simulators / emulators include:
Both commercial tools are available at deeply discounted prices to universities.
Source Port number is the unique application identification number of the service/application at sender side which sending data to the receiver. Using this source port number the receiver thus can identify which service/application has send this packet and to which application/service the receir should reply to if necessary.
-- By MyNarutoAnime
----
Why ISDN?
until 1980 networking system was dominant by analoge, with analog data communication only voice based apllications can be on, evaluation of humanity sceince lead to new aspect and new looks for next step, in 1980 they start to think about fully digital network in sence of new communation ability, sceintist think in ISDN it's appriviation for Integrated service digital network the meaning of integrated here means integrating more than one conventional service, i mean the integrate voice, data, voice and image processing and that not easy in analog.
ISDN working up houses phone line, meanwhile it make isolation between data and voice call, it's relible since it uses some protocols like x.25, LAPB and LAPD and x.25
in ISDN house you see every electrical indivitual has its own connection with ISDN modem, like phone, PC etc.
ISDN support varaity of speed there were different in technology applied some how per every indivitual contry like UK, US, Japan etc.
ISDN was the basic step for more furthere development in networking field.
the idea was behind ISDN is wise enough to make ISDN survive over decated, there idea was to make multi virtual channel in the same physical channel, those channels are controlled over x.25 protocol, LAPD and LAPD control D channels which is controller of the stream and user data the actual data stream send.
by combining those channel we can make an array of those channels that propotional to user need, cause in network every bit is coast supra money and bandwith.
What was the name of the network that resulted from the internet invention project?
The Internet started as Arpanet; today it is called the Internet.
The Internet started as Arpanet; today it is called the Internet.
The Internet started as Arpanet; today it is called the Internet.
The Internet started as Arpanet; today it is called the Internet.
Bits per second, bps, or a derivative like kbps (kilobit per second) or kB/s (kilobyte per second).
What is luke garrisons disease?
I think you are asking about Lou Gehrig's disease, also called Amyotrophic Lateral Sclerosis ( ALS). Its a disease of the nerve cells in the brain and spinal cord that control voluntary muscle movement. It usually affects people over 50 y/o and the cause is unknown, the average survival rate is 3-5 years form onset of symptoms.
Why is auto-negotiation not recommended for use in critical network data paths?
Its not recommended because the use of manually set configuration often led to duplex mismatches when two devices are connected.
Is full full duplex can be consider in the mode of communication of data in computer?
I wouldn't worry about this question until you've learnt English properly. But yes, data retrieval can be considered as half duplex or duplex as it can send a prompt then have data sent to it, or simply create a two way transmission in synchronous.
Does network monitor allow you to look inside of packets on the network?
Yes, a network monitor program is designed to show you all of the parts of a network packet.
Even your visited websites, chat messages or emails content. I saw a product name "WFilter" can do that.
How can you un-update your Facebook profile?
I really don't know I was googling that that's hownto unupdaten ur Facebook so if anybody knows please post it on my Facebook my Facebook name is Heba abulabbeh
How is looping problem solve by switches and by routers?
The looping problem solved by switches by using an algorithm named Spanning Tree algorithm and Routers by using Dijkstra's shortest path algorithm.
Switches handle the looping problem through making spanning tree.
Switches:
Switching handle the looping problem by building Spanning Tree.
Spanning Tree Algorithm:
There are possibilities in the extended LANs having loop like structure. Bridges and switch must be able to correctly handle loops. This addressed by having the bridge or switch run a distributed Spanning Tree Algorithm.
If you think of the extended LAN as being represented by a graph that has loops (cycles) then a spanning tree is a subgraph of this graph that covers (Spans) all the vertices, but contains no cycles. That is a spanning tree keeps all the vertices of the original graph, but throws out some of the edges.
Consider the following extended LAN with many bridges or switch forms loops.
If we remove some ports for the bridge or switch from the topology, the extended LAN reduced to a cyclic tree. The main idea of the spanning tree is for the bridge or switch to select the ports over which they will forward frame. The algorithm selects ports as follows.
- The spanning tree algorithm first selects the bridge with smallest id as the root of the spanning tree as described below.
- The root bridge or switch always forwards frames out over all of its ports.
- Each bridge computes the shortest path to the root and records the corresponding port. This port is also selected as the bridge or switch preferred path to the root.
- All the bridge or switch connected to a given LAN elect a single designated bridge that will be responsible for forwarding frames towards the root bridge.
Routers:
Routers rely on routing protocols to build shortest path to avoid routing loops. (Ex) Link State Routing protocol and Distance Vector Routing protocol.
Link State Routing protocol build routing table based on Dijkstra's algorithm and Distance Vector Routing protocol build routing table based on Bellman Ford algorithm.
- The local node may be the start (root) of the tree.
- The local node has cost 0 and makes itself as permanent node.
- From the list of tentative nodes -
- Find a node with lower cumulative cost and make it as permanent.
- Select the direction with the shortest cumulative cost.
- To examine each neighbor node of it that was the last permanent node.
- Repeat the steps until every node becomes permanent.
Which companies offer FreeBSD Dedicated Server packages?
There are several companies that offer FreeBSD Server packages. Some of these companies include Host Gator, Verio, Server Pronto, Colocation America, and Galaxy Visions.
