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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
How does SMTP mark the end of a message body?
The HTTP protocol simply declares the entire length of the message in part of the header called "Content-length header field".
Network Node
Computer Workstation
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Why are client server networks often installed in businesses instead of peer to peer networks?
First, I don't know that it's true that P2P networking doesn't exist in large IT environments. File/printer sharing and peer-to-peer applications, if the ports are opened on the local subnet, are frequently allowed, at least internally. Exposing P2P file-sharing apps outside of a corporate DMZ poses an unconscionable security hazard.
But from a centralized administration perspective--the more turnover you have with users, groups, apps, and access makes centralized administration the only effective solution for maximizing user uptime and network security.
What is a type of always-on connection that is established between two communications devices?
Dedicated
A bus network would suffer from signal bounce without what?
a specific resistor/ capacitor circuit connected to a 555 timer will create a debounce switch in synchronous format
Does wan stand for Wide Area Network?
A wide area network (WAN) is a geographically dispersed telecommunications network. The term distinguishes a broader telecommunication structure from a local area network (LAN). A wide area network may be privately owned or rented, but the term usually connotes the inclusion of public (shared user) networks. An intermediate form of network in terms of geography is a metropolitan area network (MAN).
Category 3 (Cat3) is a type of unshielded twisted-pair (UTP) cable. Category 3 refers to specifications that describes an ability to operate at frequencies of up to 16MHz. It was the cable of choice in the early days of twisted-pair Ethernet since it was designed to reliably transmit up to 10Mbit/sec. Though now eschewed in the Ethernet world in favor of Cat5e and Cat6, Cat3 still makes a very useful cable for telephone and Voice-over-IP applications.
How do you wireless connect samsung Blu-ray player to belkin router?
It may not be easy.
My assumption is that you want to listen to the TV without disturbing others in the room. This requires that your headphone connection should either cut off the TV's sound through the speakers, or should be independent of the TV's sound volume setting.
Many TVs have a sound jack, but not all of them cut off the speakers when a plug is inserted. The easiest way to hook up your wireless headphones to the TV is to plug the input to the transmitter into the TV's sound jack. But this will require the sound to be played at an audible level, and if the jack does not cut off the sound to the speakers, you may disturb others.
Some TVs have left-right sound outputs on the back or bottom of the set, usually marked with red and white jacks. If your TV has these, plug the transmitter for your wireless headphones into these jacks. They should be independent of the TV volume controls. But many TVs do not have sound outputs.
Finally, if you are watching TV through some device (like a blu-ray player) you may be able to plug the headphone transmitter into the player's stereo outputs. But if you're watching live sports, this won't help.
Advantages of Frequency Division Multiplexing?
FDM is the technique used to shift several base band signals to different higher frequencies, thus creating, in effect, a larger channel bandwidth because several signals can be sent over the same medium at the same time without interference with each other.
How many host can you have for 10.20.50.0 subnet mask 255.255.255.0?
253.
Valid addresses would be from 10.20.50.1 to 10.20.50.254
10.20.50.0 is the network address.
10.20.50.255 is the network broadcast address.
Any network with a subnet mask of 255.255.255.0 will support 253 hosts.
What is the characteristic of classful routing?
Classful routing protocols do not carry subnet mask information on their routing updates. This makes them unsuitable for hierarchical addressing that require Variable Length Subnet Mask (VLSM) and discontiguous network. Classless routing protocols do carry subnet mask information on their routing updates.
RIP v1 and IGRP are classful routing protocols. RIP v2, EIGRP, OSPF, and BGP are classless routing protocol.
When running a classful routing protocol on a network, make sure you use the same subnet mask everywhere. Otherwise, routing black holes can occur.
Classless routing protocols extend the standard Class A, B, or C IP addressing scheme by using a subnet mask or mask length to indicate how routers must interpret an IP network ID. Classless routing protocols include the subnet mask along with the IP address when advertising routing information. Subnet masks representing the network ID are not restricted to those defined by the address classes, but can contain a variable number of high-order bits. Such subnet mask flexibility enables you to group several networks as a single entry in a routing table, significantly reducing routing overhead. Classless routing protocols includes RIP v2 and OSPF, Border Gateway Protocol version 4 (BGP4) and Intermediate System to Intermediate System (IS-IS).
It is maximum 12 mm and you will see it easy when you turn connector around and there are line in plastic marking the maximum measurement. If you untwist longer, there will be disturbance in network traffic.
1/2 Inch if you dont know what 12 mm is.
ipconfig
How do you upgrade a ten computer network?
First, you have to decide on the network topology you want to use. This will decide on the type of wiring necessary and any network connectivity devices.
Second, you have to decide whether this is a peer to peer network, or a client server network, which will also impact what software is installed on the network and how it is supported.
For 10 systems or less, a peer to peer network is a good choice; all you need is the wiring, and a simple device such as a hub or switch (a switch would be better). Then, wire all the systems to go to the switch, and configure the network interfaces on each device.
The Class B IPv4 address network ID is located in the?
The first 16 bits is the location of the Class B IPv4 address network ID based in classful addressing. 16 bit is an expression used for microcomputers with 16-bit microprocessors.
How do you get a club pogo promotion code?
go to http://pogo.com/wwmag you will get a free 30 day pass. Its good until July 2009
Why a laptop cannot detect wireless network?
The only reason your laptop would not recognize a wireless router is either you do not have a wireless network card or your network adapter card is not working. Also, there is a switch on the side of your laptop that has to be turned on for your wireless network to come on. Check the switch first, if that does not do it then go into Device Manager and right click on your network adapter card and see if it says that it is wireless.
If indeed it is a wireless modem, the most likely problem is that you do not have drivers.
For n devices in a network what is the number of cable links required for a star topology?
15 usually but it can change over time
What kind of information can be found using a packet sniffer?
Ethernet Frame Type
TCP Sequence Number
Source IP Address
1 What is the primary reason for development of IPv6?
First, IPv4 is limited in the number of addresses. When it was developed, 4 billion addresses seemed more than sufficient, but that was before the days of ubiquitous personal computers, smart phones, and even the World Wide Web. Now there are millions of web servers on the Internet, and billions of people. Every device needs a unique address (this isn't strictly accurate - firewalls, NAT, proxy servers and connection sharing helps some). It is estimated that IP address for the Internet will "run out" within a year.
IPv6 is a 128-bit address scheme, allowing for 3,400,000,000,000,000,000,000,000,000,000,000,000,000 addresses. That's 6,500,000,000,000,000,000,000,000 addresses for every square meter on Earth.
Next, IPv4 provides no facility for good security. Some techniques have been used to layer security protocols on top of TCP, but IP spoofing, man-in-the-middle attacks, and other hacks still leave network connections vulnerable.
There are other reasons as well, but I'll let someone else address those.
The easiest way would be to capture the sprinkler water and fill a 5gallon bucket and time your self. When the buckets full then divide the time it took by 5 and you have your GPM.
