IEEE 802 standards Flashcards
(14 cards)
What is IEEE 802 in networking?
IEEE 802 is a set of standards developed by the Institute of Electrical and Electronics Engineers (IEEE) for Local Area Networks (LANs), Wireless LANs (WLANs), and Metropolitan Area Networks (MANs).
Which OSI layers do IEEE 802 standards primarily cover?
IEEE 802 standards mostly operate at the Physical Layer (Layer 1) and Data Link Layer (Layer 2) of the OSI model.
What is IEEE 802.3 and what is it used for?
IEEE 802.3 defines the Ethernet standard for wired LANs. It uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) to manage access to the network medium.
What is IEEE 802.11 and what is it used for?
IEEE 802.11 is the standard for wireless LANs, commonly known as Wi-Fi. It defines how wireless devices communicate and uses CSMA/CA for media access control.
What is IEEE 802.15 used for?
IEEE 802.15 defines standards for Wireless Personal Area Networks (WPANs), such as Bluetooth, Zigbee, and WirelessHART. These are used for short-range device communication.
What is the purpose of IEEE 802.1?
IEEE 802.1 defines standards for network bridging and management. It includes VLANs, Quality of Service (QoS), and Spanning Tree Protocols to manage traffic and prevent loops.
What is the main function of CSMA/CD in IEEE 802.3?
CSMA/CD manages how devices respond to collisions on Ethernet networks. Devices listen before sending data, and if a collision is detected, they wait and retry after a random delay.
What is the main function of CSMA/CA in IEEE 802.11?
CSMA/CA helps prevent collisions in wireless networks by requiring devices to listen and send a short handshake before transmitting, reducing the chance of simultaneous transmissions.
What is the difference between IEEE 802.3 and IEEE 802.11?
IEEE 802.3 is for wired Ethernet LANs and uses CSMA/CD, while IEEE 802.11 is for wireless LANs (Wi-Fi) and uses CSMA/CA.
What is the benefit of using IEEE 802 standards in networking?
They ensure interoperability and compatibility between devices from different manufacturers, providing reliable and consistent network communication protocols.
What is a VLAN and which IEEE standard manages it?
A VLAN (Virtual Local Area Network) is a network configuration that segments networks at Layer 2. It is managed using IEEE 802.1 standards.
What is the purpose of Quality of Service (QoS) in IEEE 802.1?
QoS prioritizes network traffic to ensure that important or time-sensitive data (like video calls) is transmitted smoothly without delay.
What is the Spanning Tree Protocol (STP) and why is it important?
STP is a protocol under IEEE 802.1 used to prevent network loops in Ethernet networks by disabling redundant paths until needed.
