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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 is the networking software?
1.Alyuda NeuroIntelligence
NeuroIntelligence is neural network software designed to assist experts in solving real-world problems. Aimed at solution of real-world problems, NeuroIntelligence features only proven algorithms and techniques, is fast and easy-to-use.
2.ShareTheNetShareTheNet lets you share your low cost Internet connection across your network. Using ShareTheNet, all of the computers on your network can do their own work on the Internet as though they have their own connection. ShareTheNet allows just about any network software to use the Internet. No more funbling with SOCKS settings for each package on every machine. And ShareTheNet is ultra-secure right out of the box. You don't have to worry about hackers viewing and changing your private files.
3.Network Statistics
This utility helps you see what exactly is happening with your network connection. Determine if networking software is in use that you don't know about or keep an eye on your throughput. Also simplifies releasing and renewing adapter IP addresses, viewing network providers, data throughput and protocol details in Windows 98, ME, NT, 2000 and XP.
To learn more on the website http://www.globalshareware.com/Utilities/.I hope it can help you with the problom.
What layer of the OSI model does Internet Protocol belong to?
IP is a layer 3 (network layer) protocol used for routing
How long are Ethernet Mac addresses?
Ethernet addresses are 48 bits long - not 32 bits long like IP addresses. Different single network standards have different address lengths. Ethernet addresses are called MAC addresses for other reasons, Media Access Control.
What is a collection of computers connected together called?
It is called a network. If there are computers are connected to each other in the same building or immediate area, then they are considered to be part of a Local Area Network (LAN). If they are connected to other LANs around the world, then they are part of a Wide-Area Network (WAN). A famous WAN many are familiar with is the Internet.
This protocol would be the NIC (Network Interface Card). The NIC takes frames from layer 2 and converts them into electrical siginal's
How is math used in computer networking?
In computer networking Math and binary operation are used in calculating subnet masks or in subnetting or in supernetting etc.
Why optical fiber is slowly replacing copper cables in telecommunicaton?
Fiber lasts longer than copper, it has less signal attenuation, and its bandwidth capacity is much greater. It's just an all around better medium than copper.
Plus, it costs almost exactly the same to deploy fiber as it does copper in new outside plant deployments - so you get all the benefits of fiber for no additional cost.
Oject connected to a network is know as what?
The answer to this question depends on HOW the device is used on the network. If the device is used to store data from other computers it is called a server. If it is used to access data from other computers or the server it is called a client.
What are the advantages of UDP?
The advantages of TCP over UDP are quite clear, as TCP guarantees that the sent data actually arrives, that it arrives in order and that there are no duplicates, while UDP provides none of these guarantees (only offers "best effort" policy). Unlike TCP, UDP does not provide any flow and congestion control.
On the surface, an unreliable transport protocol like UDP may not seem very worthwhile or desirable. But in fact, UDP can be very useful in certain situations, and it enjoys one key advantage over TCP - speed. The reliability features built into TCP can be expensive in terms of overhead at execution time.
Therefore, many applications find UDP well-suited for their needs, for the following reasons:
No connection establishmentWhile TCP uses a three-way handshake before it starts to transfer data, UDP just blasts away without any formal preliminaries. Thus, UDP does not introduce any delay to establish a connection. This feature is most useful to applications which exchange sporadic and low-volume data.
No connection stateTCP maintains connection state in the end systems. This connection state includes receive and send buffers, congestion control parameters, and sequence and acknowledgment number parameters. This state information is needed to implement TCP's reliable data transfer service and to provide congestion control. UDP, on the other hand, does not maintain connection state and does not track any of these parameters. For this reason, a server devoted to a particular application can typically support many more active clients when the application runs over UDP rather than TCP.
Small segment header overheadThe TCP segment has 20 bytes of header overhead in every segment, whereas UDP only has 8 bytes of overhead. TCP needs more header fields in order to guarantee reliability, while UDP, that gives no guarantees, does not.
Unregulated send rateTCP has a congestion control mechanism that throttles the sender when one or more links between sender and receiver becomes excessively congested. This throttling can have a severe impact on real-time applications, which can tolerate some packet loss but require a minimum send rate. On the other hand, the speed at which UDP sends data is only constrained by the rate at which the application generates data, the capabilities of the source (CPU, clock rate, etc.) and the access bandwidth to the Internet. We should keep in mind, however, that the receiving host does not necessarily receive all the data. When the network is congested, a significant fraction of the UDP-transmitted data could be lost due to router buffer overflow. Thus, the receive rate is limited by network congestion even if the sending rate is not constrained.
Lower latencyWith TCP, if a packet is lost, but the next packet makes it through, the kernel will withhold that packet until the earlier packet can be re-sent. This is because TCP is a guaranteed, in-order, stream protocol. This means that "fresh" data will sit in the kernel, becoming "stale", while waiting for the TCP timeout to be retransmitted (a minimum of 3 seconds for a lost packet). This is why UDP is usually better for games, voice conferencing, and other low-latency applications.
Broadcast and multicastBeing a connection-oriented protocol, TCP does not support broadcast and multicast. Therefore, applications that require this kind of service will have to use UDP as a transport protocol.
Application flexibilityThe fact that UDP lacks built-in reliability mechanisms can be considered an advantage from the application designer's point of view. Building reliability directly into the application allows the application to "have its cake and eat it too". That is, application processes can communicate reliably without being constrained by the transmission rate constraints imposed by TCP's congestion control mechanism. Application-level reliability also allows an application to tailor its own application-specific form of error control.
For example, an interactive real-time may occasionally choose to retransmit a lost message, provided that round trip network delays are small enough to avoid adding significant playout delays. In fact, many of today's proprietary streaming applications do just this: they run over UDP, but they have built acknowledgements and retransmissions into the application in order reduce packet loss.
Can you describe fiber optic cable?
An optical fiber cable is a cable containing one or more optical fibers. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed.
How can you clean laptop for more room?
- you get a wipe and clean it
- then dry it up
- keep a cloth on it til completely dry
What is call switching and line switching?
Line switching, also referred to as circuit switching, is how landline phone systems connect. This method uses a dedicated line to connect the calls. Call switching refers to the way calls are handled on a mobile network.
What is difference between web server and proxy server?
What is the difference between a packet filter and a proxy?
Preface
So you think you know what a proxy is? Well if you are familiar with the old Web Proxy servers please forget everything you thought you knew about proxies. We are talking about something very different. The old proxy servers took web requests from clients and checked to see if it had that page already cached, and if not, it would then redirect the client request to the internet, if the request was allowed. A linear flowchart would look something like:
- Client request for KnowtheNetwork.com -> Proxy checks cache -> Not found, forward request
- Client request for Google.com -> Proxy checks cache -> Cached page found, replies w/ cached page
- Client request for badwebsite.com -> Proxy checks cache -> Proxy denies the request based on policy
A modern day proxies are entirely different.
A crash or (system crash) in computing is a condition where a program (either an application or part of the operating system) stops performing its expected function and also stops responding to other parts of the system. Often the offending program may simply appear to freeze. If this program is a critical part of the operating system kernel the entire computer may crash.
Definition of peer to peer network?
http://en.wikipedia.org/wiki/Peer-to-peer
What is an accurate descripition of an unstructured peer to peer application
How do you enable wireless on your e-system 4113 laptop?
To enable wireless you will have to check two things.
1. Whether the wireless button on the laptop is turned on or turned off.
The wireless button is found on the laptop's keyboard or on the side of the laptop.
The wireless button will have an icon of wireless antenna.
If the light on the wireless button is amber then it is turned off. If the light is blue then it is turned on.
2. We can also enable the wireless from the HP wireless assistant.
Click on the start button- in the start serach field write (HP wireless assistant)-- Turn on the wireless network.
What is the purpose of the Primary Domain Controller on a Windows network?
The server holding the PDC emulator role will cause the most problems if it is unavailable. This would be most noticeable in a mixed mode domain where you are still running NT 4 BDCs and if you are using downlevel clients (NT and Win9x). Since the PDC emulator acts as a NT 4 PDC, then any actions that depend on the PDC would be affected (User Manager for Domains, Server Manager, changing passwords, browsing and BDC replication).
In a native mode domain the failure of the PDC emulator isn't as critical because other domain controllers can assume most of the responsibilities of the PDC emulator.
Connector at the end of the Ethernet cable?
The one that looks like an over-sized phone plug is called "RJ-45"
What is the name of the hardware component that enables a computer to send and receive data?
This could be a modem or network card most commonly, but can also be a large number of other devices. It depends on the method of sending and receiving- A CD burner or floppy drive can send and receive data, just not in an entirely automated process.
What is a computer or device on a network that handles shared network resources called?
Application server is incorrect.
The correct answer is System Software
