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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 port number is assigned to email servers?
generally smtp is on 25 and pop3 is on 110. but there are different ports for different types of mail servers too.
Which protocol provides no address information or port number?
the 28837 port of the ip servementate general stopper
Why computers are used in schools?
Computers are useful in schools because they provide a whole new way of learning. It provides easy research and also interactive learning sources, such as bbc. It is also practical as it means that you can save items easily and you can save paper and it is useful for those of us who have poor handwriting. I know that I like having computers at my school because they allow for independence and give us a break from listening to teachers non-stop.
What is the different between igp protocol bgp protocol?
Interior Gateway Protocol IGB runs between two routers in the same autonomous system AS, whereas EGP runs between routers that belong to different AS's. Both protocols are two flavours of BGP.
Disadvantage of Next Generation network?
- NGN technology is still under research anddevelopment.
- Lack of Standardization and governing body.
- Difficult to make it work with existing technology and convert the whole system as well
How do you insert not attach pictures in a mail text?
You call your son, or child whom is age 5 and he will figure it out. LOL You call your son, or child whom is age 5 and he will figure it out. LOL
Mac & llc
i am using samsung monte,when i am synchronising ,they used to write profile name,sync ceategory etc.i dnt knw that.what will i do?
s
Network monitor.
What is the Comparison between an IP softswitch and an IP PBX hardware system?
A IP softswitch is a controlling device for connecting/managing telephone calls while an IP PBX is a phone system used for transmitting voice, video and other data over networks like the internet.
Do wireless signals use cellular towers?
If you are using a wireless router for your internet connection, no. If you are using, lets say one of those Verizon internet cards, Yes those are connected to there Cell Towers.
How do you connect your iPhone to your home network?
Go in to settings, then select "Wi-Fi" then, select "on" if turned off. It should then scan for wireless networks and produce a list. A pad lock means the network is secure and requires a password. Select the network you require, then connect, entering the password if required. NOTE, IT MIGHT BE ILLEGAL IN YOUR COUNTRY TO CONNECT TO A PRIVATE NETWORK WITHOUT PERMISSION, EVEN IF NOT SECURED!!
Where is the computer service center in chromepet?
Dear friend,
To service computer or laptop Right place in chromepet is Minerva Computers,opp.to Arasan Mahal,Next to Nilgris Super Market.Contact 9750607050.
Which company provides network load balancing services?
Barracuda load balancing service is one that is advertised. It is advertised as one of the most affordable in business today.The barracuda distributes traffic among servers to optimal performance.
What are physical communication media?
# Twisted pair - Wire twisted to avoid crosstalk interference. It may be shielded or unshielded. #* UTP-Unshielded Twisted Pair. Normally UTP contains 8 wires or 4 pair. 100 meter maximum length. 4-100 Mbps speed. #* STP-Shielded twisted pair. 100 meter maximum length. 16-155 Mbps speed. Lower electrical interference than UTP. # Coaxial - Two conductors separated by insulation such as TV 75 ohm cable. Maximum length of 185 to 500 meters. ## Thinnet - Thinnet uses a British Naval Connector (BNC) on each end. Thinnet is part of the RG-58 family of cable*. Maximum cable length is 185 meters. Transmission speed is 10Mbps. Thinnet cable should have 50 ohms impedance and its terminator has 50 ohms impedance. A T or barrel connector will have no impedance. Maximum thinnet nodes are 30 on a segment. One end of each cable is grounded. ## Thicknet - Half inch rigid cable. Maximum cable length is 500 meters. Transmission speed is 10Mbps. Expensive and is not commonly used. (RG-11 or RG-8). A vampire tap or piercing tap is used with a transceiver attached to connect computers to the cable. 100 connections may be made. The computer has an attachment unit interface (AUI) on its network card which is a 15 pin DB-15 connector. The computer is connected to the transceiver at the cable from its AUI on its network card using a drop cable. Maximum thicknet nodes are 100 on a segment. One end of each cable is grounded. 3. Fiber-optic - Data is transmitted using light rather than electrons. Usually there are two fibers, one for each direction. Cable length of 2 Kilometers. Speed from 100Mbps to 2Gbps. This is the most expensive and most difficult to install, but is not subject to interference. Two types of cables are: 1. Single mode cables for use with lasers has greater bandwidth and costs more. Injection laser diodes (ILD) work with single mode cable. 2. Multimode cables for use with Light Emitting Diode (LED) drivers. All signals appear to arrive at the same time. P intrinsic N diodes or photodiodes are used to convert light to electric signals when using multimode.
{| ! Media ! Distance(meters) ! Speed ! Approx Cost/station | UTP 100 4-100Mbps $90 STP 100 16-155Mbps $125 Thinnet 185 10Mbps $25 Thicknet 500 10Mbps $50 Fiber 2000 100Mbps-2Gbps $250 (multimode) |}
Color coding for straight cable?
To know colour coding of straight cable we need to know some basic facts like where it is use and from where we can generate it.The answeres are crossover or we say straight cable is used for connecting different devices like pc- hub or pc-hub etc,and we can generate it from the basic colour coding of 568a standard.But the question is how?as 568a standard is a standard for twisted pair but its comes under the subcategory of unshield twisted pair cable.so,lets come to the main ans,so here we go--
568a colour coding is
green=gr,white=w,orange=or,blue=bl and brown=br(short form)
1.gr/w
2.gr
3.or/w
4.bl
5.bl/w
6.or
7.br/w
8.br
As we can see above the colour coding of 568a cables{straight(use to connect dissimilar devices like pc-hub)} the basic of colour coding.we can generate the colour coding for cross cable from it-
Straight
As it is
Straight
1.gr/w
1.gr/w
2.gr
2.gr
3.gr/w
3.gr/w
4.bl
4.bl
5.bl/w
5.bl/w
6.gr
6.gr
7.br/w
7.br/w
8.br
8.br
What is the code for Howrse to get past the admins school network site?
There is no way to do that. If your school has blocked the site, you can ask them to unblock it, but there is no way to get around it.
How you can share a newly created folder with other users?
we need to share a newly created folder with other users.
What is QoS mapping as in for a wireless network?
QoS mapping for a wireless network - Mapping of QoS names of one protocol (e.g GSM GPRS) to the names of another protoco (e.g. WAP 3GPP.) More genrally, mapping of one QoS lassification to another.
