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What else can I help you with?
What collision detection system is used in wireless networks?
actually in wireless networks, collision detection does not work. The radio is a half-duplex channel, so it can not send and detect for the collision at the same time. Moreover the the sender can't necessarily hear what receiver is receiving, so it can't tell if collision has occurred. Instead CSMA with collision avoidance is used. So, the sender only sends when it senses the channel is free and reserves the channel by sending RTS and CTS to avoid collisions.
Does Ethernet uses CSMA CA?
No, Ethernet does not use Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). Instead, Ethernet employs Carrier Sense Multiple Access with Collision Detection (CSMA/CD). In CSMA/CD, devices listen to the network before transmitting and can detect collisions that occur, allowing them to retransmit after a random delay. CSMA/CA is primarily used in wireless networks, such as Wi-Fi, to help prevent collisions from occurring in the first place.
Why do wireless Ethernet networks attract hackers?
Wireless networks are wireless so they flout in the air, like radio waves. Then a hacker can hook on and gain access.
Are current wireless Ethernet networks in the US are based on the IEEE 8023 standard?
no
How many different types of wireless networks are?
Wifi, Internet(wireless), Ethernet(wireless), Mifi (sounds funny but it really is a network.)
Why are wireless ethernet networks more challenging to set up than wired networks?
Mostly because of security issues and EMI.
Define a wormhole attack in wireless sensor networks?
http://www.scribd.com/doc/3101991/Distributed-wormhole-attack-detection-in-wireless-sensor-networks
What device connects networks?
A device with wireless connectivity or Ethernet ports, which otherwise connects a series of devices in a network topology.
Are Wireless networks faster than other network types?
No, wireless networks tend to be slower than wired networks but they offer more range and you don't need a whole lot of wires. Wireless routers normally have Ethernet ports so you can have a mix of wired and wireless if you desire. The speed difference between the two is barely noticeable, well that's my opinion.
What is a wireless sensor?
A Wireless sensor network, according to UbiBot, is a collection of devices that can exchange data gathered from a monitored field using wireless networks. The data is routed across numerous nodes and connects to other networks via a gateway, such as wireless Ethernet.
What does use the ethernet protocol like csmaca scpc csmacd and slotted ALOHA?
The Ethernet protocol primarily uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD) for managing network access, allowing devices to listen for a carrier signal before transmitting data. In contrast, Slotted ALOHA is a simpler protocol that divides time into discrete slots, allowing devices to send data at the beginning of a time slot, but it has a higher chance of collisions. CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance), often used in wireless networks, listens for a carrier and waits to transmit to reduce collision likelihood. Each protocol has its own advantages and trade-offs in terms of efficiency and collision management.
Each computer that is part of a network must have what?
Every computer that is connected to a local area network or LAN should have an Ethernet card. For wireless networks, computers should have a wireless adapter.
