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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 enterprise network monitoring system?
it is kinda software that can help organizations to monitor and manage all Internet behaviors on their networks.
- Monitor and archive all Internet activities including web surfing, Email contents, chatting contents by instant messengers, transferred files and so on.
- Filter certain websites, emails, messengers and file transfers.
- Block P2P software, online stream, Internet games, stock software and others.
- Real time monitor of online messengers, web surfing, file transfers and all Internet links.
- Various kinds of graphics statistics of chatting, web surfing, email...
Very useful software for these purpose is 10-Strike Network Monitor or LANState. The last one can not only monitor the network, but discover its topology and build network map.
What does business use to protect data during transmission?
The process is used by all the payment companies and banks for secure data transfer.The information once sent through network can be hacked in and leaked.The process to protect that is called Encryption.The Encryption are of different levels like 72 bit 128 bit.
What is the maximum length for fiber optic cable?
Single-Mode Fiber Optics: 20 Miles
Multi-Mode Fiber Optics: 3000 Feet
This is the maximum length you can have for each type of cable without using something such as a hub to continue the signal.
What are the ways of reducing load on routers?
Basically, the more antennas you have the faster your network can perform. Say you have 10 computers on your network with one router that only has one antenna. That one antenna is sending and receiving the requests for ten computers. when you incorporate additional routers, there are more antennas to manage the load from the ten computers. Also, if you set up a second wireless router as an access point in a different location than your primary router, you can double your wireless range.
What is the most popular type of networking cable?
P2P (peer-to-peer) networks are more often used in the home because they cost less than clitn/server network and are easier to configure and maintain.
in other words STRIAGHT THROUGH
What is class B address range?
A class B address range is all the addresses that start with binary 10, or decimal 128-192. As originally defined, the first two bytes (octets) indicate the network; the last two bytes are reserved for the host. That is, a class B network has about 65,000 available addresses.
How do you send pictures from computer to Verizon phone?
There are a couple of options....You could buy a micro SD card...or...
Step 1
Create an account at vzwpix.com
Step 2 Once you have an account created, take a picture with your Verizon Wireless cell phone.
Step 3 Go to the menu portion of your cell phone and scroll over to "Get It Now."
Step 4 Select "Get PIX & FLIX" or AKA "Picture & Video"
Step 5 Select "MY PIX" or AKA "My Pictures"
Step 6 Select whichever album your pictures are in.
Step 7 Scroll through your pictures and select a picture that you would like to upload to your Verizon Wirless Pictures account. You can only upload one picture at a time.
Step 8 Once you are at the picture, press the button on your keypad that takes you to "Options." Normally, this button will be labeled on the screen of your phone.
Step 9
Now, select the screen that says "Send", then select "To PIX Place". This will automatically send your pictures to your vzwpix.com account.
Done!
Congratulations! You now have pictures to post on Facebook, MySpace, or your favorite forum. No need for a fancy shmancy cable or SD card.
Or, if you simply want to transfer pictures to your phone, you can send them via PIX message to a helpful friend and have him send them back once you get your new phone activated.
161 UDP and TCP
snmp is a network management systems to monitor network-attached devices for conditions that warrant administrative attention
Advantages of a server based network?
A client-server network is commonly used for medium to large business networks. In this type of setup, a server manages the sharing of network resources. The computers in client-server network rely on one or more central management points to access shared network resources such as printers, scanners, folders and files. A client-server network is more appropriate for medium size to larger networks because delivery and access to resources are more easily managed from a central control point. Servers are designed to cope with many simultaneous connections from users that need to access resources at the same time. Security and access control is more easily managed with this type of network and is considered extremely important by most organizations. The network administrator that manages the server(s) decides on access rights for users. A user may be allowed access to some shared resources but denied access to others. Normally, a user must authenticate themselves to a server before accessing any resources. Administrators manage users by creating accounts for them. each with their own username and password. Managing user accounts from a central location is one of the advantages of this type of client-server networks. Moreover, when network users save their data to file servers, administrators can back up the data easily and regularly to another location. Relying on a single server would mean relying on a single central connection point and the entire network would grind to a halt if it failed. Many client-server networks use more than one server as an extra precaution against a server failing. Advantages * More scalable than peer-to-peer networks * There is a central management point for sharing resources * More easily administered due to the central management point * More secure than peer-to-peer networks * Data can be backed up from one central location JAWID RAIZ
BCAS -KANDY Campus
What is a range of ip address?
A public ip (or external ip) is the one you get from your ISP. This is the one used across the internet.
Whereas the one you get from your router is a private ip (usually its a 192.168.x.x one).
If, for some reason, you don't know what is your external IP-address, you can use one of available on-line detection tools: see related link.
What are the various physical and wireless transmission media?
Physical Media
Twisted-Pair Cable
Coaxial Cable
Fiber-Optic Cable
Wireless Media
Broadcast Radio
Cellular Radio
Microwaves
Communication Satellite
What is the link between language ideology and power?
Language shapes ideology and ideology shapes language. This discursive interaction can shown by the interrelatedness of words and ideas. Attributing masculine pronouns to God shows a bias towards one gender; For example, the words 'sinister' or 'adroit' rooted in left-hand and right-handedness shows our (then) beliefs towards right-handed or left-handed people.By the way, ideology is defined by van Dijk as a set of beliefs shared by a community. So, don't assume ideologies as bad THINGS. So, humanism is as much an ideology as is communism.
What are disadvantages of global area network?
A network is one in which hosts are connected to a mainframe computer . These hosts can exchange information with each other. Global area network is advantageous because it has a wider range .
A batch is either a sandbank or a field or patch of ground near to a stream.
A batch can also refer to a quantity of bread baked at one time, or a quantity of anything in one single operation.
It's when the IP address defined in a code in explicite way, for exmaple ip="160.12.12.12".
The alternative, is when the IP address got it's value from reading specific interface/other data.
multiple-user, multitask (MUMT)
What is the purpose of time to live field within a packet header?
There may sometimes be a problem, usually temporary, that data is sent back and forth, or goes around in a loop, due to some routing error. If this happens, the data will eventually be discarded. Every time a packet is re-sent, the TTL is reduced by one; when it goes down to zero, the packet "dies".
List the components required to connect four PC's in ad hoc mode?
A hub, 4 CAT5 Cables, and every computer needs a NIC if they arent on-board.
How much does it cost for a wireless router?
Depends on which kind of wireless cards your are running. There is Wireless B/G and Wireless N.
The b/g cost about $20 if you go to a retail store, but sometimes you can find them for around $5-$10 at second hand stores or sites like Craigslist.com.
If you are running wireless N which is the newest one, then you are looking at $50+ at retail stores.
What are the advantages of Ipsec over ssl vpn?
Virtual Private Network Advantages :Users working at home can use the VPN connections to connect to their company's private network. Organizations can use VPN connection to establish connections with geographically separate offices using the public network like internet. Communication over VPN connection is more secure because VPN uses the following two protocols for data encryption:
Point-to-Point Tunneling Protocol (PPTP) Layer Two Tunneling Protocol (L2TP) with Internet Protocol security (IPSec)
What is the use of ping in networking?
Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer.
Ping is used to identify if there is an internet connection and how fast it is.
