Basic of Transmission modes
Data flows in a single, fixed direction, meaning that the sender transmits information without any possibility of receiving feedback from the receiver. Examples include a traditional radio broadcast or a keyboard sending input to a monitor.
Simplex Mode
Which transmission mode requires separate transmit and receive channels to function efficiently?
Full duplex mode
Which transmission mode has the lowest bandwidth utilization efficiency?
Simplex only uses one-way communication, leaving half the channel's capacity unused at all times.
This twisted-pair cable connector is widely used in Ethernet networking and resembles a telephone plug but is larger.
RJ-45 connector
This type of transmission medium uses insulated copper wires twisted together to reduce interference.
Twisted Pair Cable
Data can be transmitted in both directions but not simultaneously. A device must wait for the other to finish transmitting before sending data back. A walkie-talkie is a classic example of this mode.
Half duplex mode
What transmission mode does Ethernet (IEEE 802.3) use in switch-based networks
Ethernet switches allow simultaneous sending and receiving of data on separate channels, making them Full-Duplex by design.
In Full-Duplex mode, how much bandwidth is required compared to Half-Duplex?
Full-Duplex requires dedicated pathways for both sending and receiving, consuming twice the bandwidth of Half-Duplex
This type of connector is commonly used in telephone wiring and connects landline phones to the network.
RJ 11 connector
This optical transmission medium transmits data using light signals instead of electrical signals.
fiber optic cable
A telephone system allowing both speakers to communicate at the same time without interruptions. This is different from a walkie-talkie, where one must wait for the other to stop speaking. Which transmission mode it follows?
Full-Duplex
What is the default transmission mode in traditional Wi-Fi (802.11) networks
Wi-Fi operates in Half-Duplex, meaning devices take turns transmitting and receiving data on the same channel, which can slow down performance under heavy traffic.
What factor primarily limits Half-Duplex transmission speeds in wired and wireless networks?
Devices must wait for the channel to be free before transmitting, introducing delays and reducing efficiency.
This bayonet-style connector is commonly used in radio frequency (RF) applications and military communications.
BNC connector
Among wired transmission media, this one provides the highest data transmission speed and is least affected by electromagnetic interference.
Fiber optic cable
Your old-school internet modem had to ‘dial-up’ and couldn’t receive calls while you were online. Which transmission mode was used
Why do fiber-optic networks generally use Full-Duplex communication?
Fiber optics utilize different wavelengths or separate fibers for bidirectional data flow, enabling higher speeds with minimal signal degradation
What is the theoretical maximum data throughput improvement of Full-Duplex over Half-Duplex in Gigabit Ethernet?
Full-Duplex Ethernet effectively doubles data transfer speed by eliminating the need to alternate between sending and receiving.
The standard impedance for coaxial cables used in cable TV and networking applications is typically this value.
This type of transmission does not require physical cables and relies on radio waves, microwaves, and infrared signal
Wireless Transmission
A self-driving car needs to send and receive sensor data at the same time for real-time decision-making. Which transmission mode is essential for this technology
Full duplex mode
What is the ability to transmit and receive data simultaneously, reducing latency and improving efficiency?
Full-Duplex eliminates waiting times seen in Half-Duplex, improving throughput and making it ideal for real-time applications like VoIP and video calls.
In 10GBASE-T Ethernet, how does Full-Duplex achieve simultaneous data transmission
Full-Duplex in 10GBASE-T Ethernet uses four twisted pairs for bidirectional transmission on each pair, l
Which type of transmission mode is implemented in bluetooth 5.2
Full duplex for audio streams
This type of twisted pair cable is unshielded, making it more susceptible to electromagnetic interference but still widely used in networking.
UTP