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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 hottest part of the computer?

Probably either the CPU or the video card, depending on what sort of application you are running.

How do you monitor the networks system?

Network Monitoring is a comprehensive, web-enabled, fault and performance management solution that gives you broad visibility across your network.

It Monitors and analyzes real-time, in-depth, network performance statistics for routers, switches, wireless access points, servers, and any other SNMP-enabled devices.

Try Orion Network Monitoring software.

And there are some freeware monitor to choose:

Wireshark

Capsa

How secure are peer to peer networks?

There is no security. P2P wasn't designed to be secure. Anyone can see what files you are downloading and sharing, and what you are searching for. But as long as there is no personal information on the files that you share, the only information about you as a person that they can get is your IP address, which isn't very useful. Your ISP and the police are the only people who can find out who you are using your IP address. You could make P2P slightly more secure by using an encrypted proxy. -DJ Craig

What protocols does Novell Netware use?

These two links provide an overview of the protocols used in Novell Netware: http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/netwarep.htm http://www.protocols.com/pbook/novel.htm

How do telephony companies monitor the broadband download of their customers?

Usually its done via SNMP. A device(s) within the network tracks the packets/bytes and this information can be retrieved by the core network via SNMP GET. There are also other devices that integrate AAA and a flow monitoring device to report more accurate information.

How can you configure a mobile device so it cannot connect to any network?

Configure the mobile device to use airplane mode, tap the settings app and turn Airplane Mode on which disables all antennas so the device can neither transmit nor receive signals.

Diagnostic tool used to collect data?

Dianostic tool is use to check the promble in your car,this is a website about dianostic tool:www.obd2works.com

Which protocol is network layer of tftp?

The network layer protocol of TFTP (Trivial File Transfer Protocol) is typically UDP (User Datagram Protocol). UDP is used for its simplicity and low overhead, making it well-suited for simple and fast file transfers.

Where can you download garageband for free?

You can't download Garageband on a windows, it's a Macintosh application.

Also, if you make music on it, exporting can only be done on a Macintosh.

But of course, you buy a mac, you get garageband for free.

How do you connect a router to cisco 1800?

To connect to a cisco 1800 series router, you need either a network connection that goes to the router, and then you would configure the router to allow telnet or you would need a console cable, also called a rollover or cisco cable and physical access to the device.

How can you connect a PC and laptop without a LAN card?

I can only think of two ways you can connect two computers if they don't have network cards: 1. Use a serial cable. All computers have serial ports, so this would be the easiest solution, though it will be a little slow. Look up directions online on how to do this. 2. If both computers have an IR (infra-red) port you can use that to connect the two. More input from FAQ Farmers: * or you can do it with a usb cable thingy, see it is like $5.00 and it works great if both have usb ports. by parallel cable by usb cable For newer macbooks hold down the t key to make it a drive then connect it to the desktop You can also buy ethernet / usb connectors. Pretty much its a wire with USB on one end and ethernet on the other. You just plug the USB side into your computer and now you have a ethernet port.

Recent trends in mechatronics?

Mechatronics is a technology feild created by the marriage of mechanically operated equipment and electronically controlled equipment (computer controls) in manufacturing. The introduction of Computer Numerically Controlled (CNC) machinery in the 1970's and the introduction of robot controlled equipment in the late 1980's to the late 1990's is what created mechatronics. The last link in the chain was the introduction of Programmable Logic Contols (PLC) in the mid to late 1990's. By joining all three of these technologies together, manufacturing from raw materials to finished and assembled product was possible through automation with minimal human in process labor.

Advantages disadvantages of embedded operating system?

An RTOS is not required for an embedded system but it can offer powerful advantages to the system developer. Without an RTOS the developer must write his own code to handle all of these functions. * Enables real-time, deterministic scheduling and task prioritization

* Abstracts away the complexities of the processor

* Provides a solid infrastructure constructed of rules and policies

* Simplifies development and improves developer productivity

* Integrates and manages resources needed by communications stacks and middleware

* Optimizes use of system resources

* Improves product reliability, maintainability and quality

* Promotes product evolution and scaling

A well-architected RTOS will handle these functions much more efficiently that a programmer could write the code. RTOS developers are expert in how to handle operations with a minimum of processor cycles.

Advantages of cluster computing?

Reduced Cost, Processing Power, Improved Network Technology, Scalability, Availability

List at least two differences between FDDI and Token Ring?

Token Ring

  • 1 Token on Network
  • 4 mbps or 16 mbps
  • 1 Ring
  • STP or UTP

FDDI

  • Multiple Tokens
  • 100 mbps
  • distance 100km
  • Fiber used in most implementations
  • Dual Ring

Internetworking with Cisco and Microsoft Technologies, pg. 237

What is the significance of packet size in a packet switching network?

The packet size is important because the network can then allow for flow control via a pre-determined 'window'. If there is a lot of PDUs travelling, the network can slow down the flow control, and reduce the packet window - so the receiving end can keep pace with the transmission - in an attempt to avoid a slowdown in network performance. However, in some instances the packet size can be set so that it cannot be fragmented.