1.What is Stp ,And how it works? 2.What is Vlan and types ? 3.What is DHCP and DNS , how to work ? 4.What is OSI layer and define one to one ?

Question

Accepted Answer

STP is a network protocol that prevents loops in Ethernet networks. VLANs divide a network into separate broadcast domains. DHCP assigns IP addresses, DNS resolves domain names. OSI model defines networking functions in layers.

STP (Spanning Tree Protocol) prevents loops by blocking redundant paths in a network.
VLAN (Virtual Local Area Network) divides a network into separate broadcast domains to improve network performance and security.
DHCP (Dynamic Host Configuration Protocol) assigns IP addresses automatically to devices on a network.
DNS (Domain Name System) translates domain names into IP addresses for network communication.
OSI (Open Systems Interconnection) model defines networking functions in seven layers, with each layer responsible for specific tasks.
Example: Layer 1 of OSI model is the Physical layer, responsible for transmitting raw data over a physical medium.

Accepted Answer

STP (Spanning Tree Protocol):

STP is a network protocol used to prevent loops in Ethernet networks. It works by dynamically selecting a loop-free path through the network, while blocking redundant paths. This prevents broadcast storms and ensures that frames are forwarded only along the most efficient path.
VLAN (Virtual Local Area Network):

VLANs are logical segmentation of a physical network into multiple broadcast domains. They provide isolation and segmentation of network traffic, improving security, performance, and manageability. Common types of VLANs include:
Port-based VLANs: Devices are grouped into VLANs based on the physical switch port to which they are connected.
Tagged VLANs (802.1Q): Allows VLAN information to be carried across trunk links between switches.
Voice VLANs: Designed specifically for voice traffic, separating voice and data traffic on the same physical network.
DHCP (Dynamic Host Configuration Protocol) and DNS (Domain Name System):

DHCP is a network protocol used to dynamically assign IP addresses and network configuration parameters to devices on a network. It works by leasing IP addresses to devices for a specified period, eliminating the need for manual IP address configuration.
DNS is a hierarchical distributed naming system used to translate human-readable domain names (like www.example.com) into IP addresses. It functions like a distributed database, mapping domain names to IP addresses and facilitating the resolution of domain names to IP addresses.
OSI (Open Systems Interconnection) Model:

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven distinct layers. Each layer serves a specific purpose and interacts with adjacent layers to facilitate communication across a network.
For example, Layer 1 (Physical Layer) deals with the physical transmission of data over the network medium, while Layer 2 (Data Link Layer) is responsible for the reliable transmission of data frames between adjacent nodes on the same network

1.What is Stp ,And how it works? 2.What is Vlan and types ? 3.What is DHCP and DNS , how to work ? 4.What is OSI layer and define one to one ?

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