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What happens when two computers transmit through a hub simultaneously?
A collision occurs.
What do two way radios do function wise?
Two way radios can both transmit and receive signals. It uses two different radio frequencies to carry the two conversations simultaneously.
What type of multiple access service used in satellite?
In satellite communications, the most common multiple access techniques are Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), and Code Division Multiple Access (CDMA). TDMA allocates time slots for different users to transmit their signals, while FDMA assigns specific frequency bands to each user. CDMA uses unique codes to allow multiple users to share the same frequency band simultaneously. Each technique has its advantages and is chosen based on the specific requirements of the satellite communication system.
What is half and full duplex modem?
half duplex modem is each station can transmit and receive but not at the same time. full duplex modem is both stations can transmit and receive simultaneously.
How many pairs of stations can simultaneously communicate on ELAN?
In an Ethernet Local Area Network (ELAN), all stations can potentially communicate simultaneously with each other in a shared medium. However, due to the nature of Ethernet, only one pair of stations can effectively transmit data at any given moment to avoid collisions. Therefore, while multiple pairs can attempt to communicate, only one successful transmission occurs at a time unless using switches that create separate collision domains, allowing for multiple pairs to communicate simultaneously.
What are three common examples of frequency division multiplexing?
AM radio broadcasting uses frequency division multiplexing to allocate different frequencies to different radio stations. Cable television systems use frequency division multiplexing to transmit multiple channels simultaneously over a single cable. Cell phone networks use frequency division multiplexing to separate different users' calls on the same frequency band.
What is The use of multiple frequencies to transmit a signal?
spread-spectrum technology
What are contention based MAC?
Contention-based Medium Access Control (MAC) protocols are networking protocols that allow multiple devices to compete for access to a shared communication medium. In these protocols, devices transmit data whenever the medium is idle, leading to potential collisions if multiple devices transmit simultaneously. Common examples include Carrier Sense Multiple Access (CSMA) and its variations, such as CSMA/CD (Collision Detection) and CSMA/CA (Collision Avoidance). These protocols are widely used in wireless and wired networks to manage how devices communicate and share bandwidth efficiently.
To transmit and receive signals to and from multiple nodes in a three story house?
Omnidirectional
What are characteristics of broadband?
each channel can only transmit signals in one direction signals are transmitted as rf waves can be used to transmit multiple signals at once
What is the function of duplexer in a cell phone?
The way a duplex functions in a cell phone is by having a two - way communication in which both terminals can transmit simultaneously.
How would you describe broadband?
each channel can only transmit signals in one direction signals are transmitted as rf waves can be used to transmit multiple signals at once
