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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
A hub uses straight throught cabling from clients to the hub, and uses a cross-over cable with the up-link ports to connect hubs to hubs.
Usually, the cabling is UTP (Unshielded Twisted Pair) wiring.
True
Network+ Guide to Networks 5th Edition p370-371
How long does it take to set up a wireless router?
Usually they come preconfigured for non-secured networks and you need just to plug it in.
Why was cellular digital packet data created?
CPCD was adopted by companies with analog systems to make them more competitive with digital systems
Explain any two dynamic routing algorithms?
Dynamic or adaptive Routing algorithms in contrast change their routing decisions to reflect changes in topology and usually the traffic as well Dynamic routing attempts to solve this problem by constructing routing tables automatically, based on information carried by routing protocols, and allowing the network to act nearly autonomously in avoiding network failures and blockages.
Dynamic routing dominates the Internet. However, the configuration of the routing protocols often requires a skilled touch; one should not suppose that networking technology has developed to the point of the complete automation of routing.
How do an IP address and its subnet mask function together?
The subnet mask - expressed in binary - starts with a number of ones, followed by zeros. If (for example) the subnet mask is 255.255.255.0, this can also be written as /24 - that means that the first 24 bits are ones. In this example, that means that the first 24 bits of the IP address (in this case, exactly 3 bytes) are shared by all devices in the same subnet. So, if your IP address is 200.3.85.7, and the subnet mask is 255.255.255.0, all other computers in the same subnet will also start with 200.3.85.
What is the limiting factor in the time required to transfer a file using TFTP?
TFTP can transfer a maximum of 512 bytes per client server round trip with its stop and wait protocol.
Maximum throughput of TFTP = 512 bytes/ round trip time(client-server)
We assume for the Ethernet, the Round trip time = 3 ms
The maximum throughput is around 170,000 bytes/sec
What does UPC in fiber optic mean?
"UPC" its attenuation is smaller than the PC and it has a spherical cross-section
Where can one find information on artificial neural network?
An artificial neural network is a mathematical model inspired by biological neural networks. One can find more information about this subject online at Learn Artificial Neural Networks, Computer World, and Wikipedia.
Where can one purchase a Network Storage Adapter?
One can purchase a Network Storage adapter by going to the Walmart store. Walmart sells a large variety of electronic products, including Network Storage Adapters.
Where can one find a free home network storage?
Free home network storage on the web is not something that is currently available to home consumers. However, affordable rates can be found on sites like Amazon, Newegg, and Dell.
What is the purpose of a token in a token-passing network?
The token indicates current "ownership" of the ring, in that only one client at a time can have access to the network. If you don't have the token you can't do anything on the network. It also indicates the status of the ring, whether it is in use, available to transmit on, health status, etc.
What 2 tasks do dynamic routing protocols perform?
- Network discovery
- Update and maintain routing tables
What are benefits and disadvantages of open source network monitoring?
The benefits of open source network monitoring are: it allows for open communication and enhanced information delivery, targets a wider audience. Some disadvantages are resulting in loss of productivity, opens up possibility for hackers and fraudsters.
How do you connect two computers without using LAN ports?
Get a USB Direct Connect Cable, it is a USB cable that has a special crossover and more to it. This makes the USB cable act like an old NULL Modem cable from the early days. You then plug it into the USB ports on each computer install the software drivers and then set up file sharing and whatever else it has you do to make it network and your good to go.
Do Not use a regular USB cable, you will fry things...
Cuve Network appears to be a Philippine based network that offers social networking, multi level marketing and a promise to increase wealth. The opening page of the web site offers little information about the opportunity other than the promise of additional income.
A web site that promises money without setting out a clear description of what is required of the members might not be a scam but its promises need to be considered carefully.
Is a simple technique that addresses QoS issues by prioritizing traffic?
DiffServ (Differentiated Services)
The payload is what the computer virus is programmed to do. Some viruses do nothing more than copy themselves onto another PC, much like a real virus does from host to host. This is the simplest payload that a virus can have. However, just like viruses in nature, some computer viruses have a greater effect - maybe they steal files or data or allow someone else to take control over the PC while some will destroy some or all of the data on the computer. A virus can also have multiple payloads (in fact, any virus that does more than just spread has by default more than one payload) - perhaps it steals data and waits until some date in the future when it activates a new payload and deletes all the data on the drive or something similar.
bits, frames, packets, segments
What is the impact of computers on local communities?
What is the impact of computers on local communities
An overlay may be called a colored overlay, which is a transparency of various colors, laid over the printed page or computer screen to raise reading scores or improve reading, according to research at http://www.HowToLearn.com/filters.html or a collection of predefined data, including text and figures. figures can be straight lines, boxes, circles or obituary shapes.
How does route poisoning prevent routing loops?
Failed routes are advertised with a metric of infinity.
WAN = Wide Area Network WLAN = Wireless Local Area Network hope I helped
What is the starting pay for someone with an associate's degree in Information Technology?
That is a very broad question. It really depends on which field you decide to go into. (There are hundreds.) It also has a lot to do with your location as well. And last but definitely not least is any type of experience you may have that is related to the job you are trying to acquire. (A vague answer for a vague question.) Maybe 35k with little experience.
