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Wireless Networking and WiFi
Questions concerning setting up and troubleshooting a wireless network from Netgear, Linksys, Actiontec or other manufacturers
2,897 Questions
What is the explanation for the types of Switching systems?
There are three type of switching system such as circuit switching ,packet switching , massage switching.
Which protocol used for routing?
A routing protocol is a protocol that routers use to tell each other about available routes. Some of the routing protocols include RIP, EIGRP, OSPF, IS-IS, BGP.
You have to choices. The first one is to use so called MAC filter. For that you have to know MAC addresses for all your network devices connected to router. The MAC filter can be used in two ways: Black list and White list. Black list describes which adapter should not be allowed (this logic is called - everybody except specified). White list defines address which only have excess to the router. It's much better to use White list because it's harder to trick.
Another option is to use security for your network. When you use secured networks you have to enter a password which is defined by router owners (you). Just log in your router change the administrative password, go in wireless settings and enable a secured network, choose password and you are protected.
Packet Jitter is the variation in the delay of received packets. At the sender they are sent evenly spaced intervals, but due to traffic congestion, improper queuing or configuration errors they come at unequal intervals.
What is the maximum recommended distance between a wireless device and its wireless access point?
300 feet
security
How does Mobile Network works?
Without base stations mobile phones will not work and we cannot connect our customers' calls. Base stations are often called masts or antennas, as these are the most visible parts.
Mobile phones use radio frequency (RF) fields to send and receive calls, texts, emails, pictures, web, TV and downloads. An RF signal is sent to the nearest base station, which sends the signal to a digital telephone exchange and on to the main telephone network. This connects the signal to the receiving phone, again via a base station (if it is another mobile phone).
Mobile phones connect to the base station providing the best signal - usually the nearest. As a person moves away from the base station the signal becomes weaker, so the mobile phone automatically adjusts its own RF field strength to maintain the minimum level needed to communicate with the base station.
The area covered by a base station is known as a cell.
Each cell is usually split into three sectors, which overlap with the sectors of neighbouring cells to create an uninterrupted network. When people travel, the signal is passed from one base station to the next, and typically never has to travel further than the nearest base station.
The size and shape of each cell is determined by the features of the surrounding area, such as buildings, trees and hills, which can block signals. Cells are largest in flat open landscapes, where they can cover up to a five kilometre radius. Cells in urban areas cover up to a two kilometre radius. The smallest cells are in built up areas, where micro-cell base stations are used to provide extra coverage and capacity.
Each base station can only handle a limited number of calls at a time. In areas of high demand, additional antennas are sometimes added to a base station to send and receive more calls and other mobile services, or an extra base station is installed.
All this means that a large number of base stations are needed to allow more people to use mobile phones, from more locations, and for coverage to be continuous when moving around.
How do you turn on wireless on gateway sx2110g-uw24?
The original configuration of the Gateway SX2110G-UW24 did not include wireless networking. If your model has a wireless networking device, make sure the drivers are installed and updated from the Device Manager tool.
Non-vendor specific routing protocols?
RIP and OSpf are non-proprietary protocol
eigrp is a proprietary protocol i.e it is a vendor specific
9 and 11 9 and 11 Try IRQ9 and IRQ10. IRQ 9, 10, and 11 have no default assignment (Chap 6 Network+ Guide to Networks)
Read more: Which_two_irq's_can_you_assign_to_a_NIC_without_causing_a_conflict_with_preassigned_devices
naa unna keta nee enna thirupi kekura vekama ila...........
Why might you choose to enter a wep key manually instead of using a passphrase?
A passphrase is easier to remember than it is with a web-key, therefore easier to crack/break/guess.
Why a packet has limit of 63 characters?
A packet does not have a limit of 63 characters - depending on the protocol it may have a total size of 1508 and beyond; the actual data is somewhat smaller but not limited to 63 characters.
For Ethernet frames, 64 characters is closer to the minimum size for data.
How do you know when to change the wireless adapter?
You would change the wireless adapter when it no longer works or you want to use a newer standard. Sometimes you might want to install a different one when you need a longer range or want to install one that uses an external antenna.
How does underwater wireless sensor network work?
They use acoustic modems, which is a like a modem for your computer but rather than sending data as electrical signals through the copper phone wires, acoustic modems send data as acoustic waves under water.
