A ZigBee module is a component that enables devices to communicate wirelessly using ZigBee protocol. It typically includes a microcontroller, ZigBee radio transceiver, and antenna, allowing devices to form a ZigBee network for data exchange over short distances. ZigBee is a wireless communication protocol designed for low-power, low-data-rate applications such as home automation, industrial control, … Read more
NFS (Network File System) is known for its role in facilitating distributed file access and sharing across heterogeneous networks. It allows users to access files and directories stored on remote servers as if they were local, regardless of the client’s operating system. NFS simplifies data sharing and collaboration within organizations by providing a seamless way … Read more
There are three main types of ZigBee networks: ZigBee Coordinator, ZigBee Router, and ZigBee End Device. The ZigBee Coordinator acts as the network controller and initiates the formation of the ZigBee network. It manages communication between devices and can also function as a bridge to other networks like Wi-Fi or Ethernet. ZigBee Routers extend the … Read more
IGMP (Internet Group Management Protocol) operates at Layer 3 (Network Layer) of the OSI model. Its primary function is to manage multicast group memberships within a network. IGMP enables hosts to inform routers about their interest in receiving multicast traffic for specific multicast groups. Routers use this information to efficiently deliver multicast packets only to … Read more
ZigBee is used for various applications primarily in the realm of wireless sensor networks and low-power, low-data-rate communications. It is commonly employed in smart home automation systems to connect and control devices such as smart lights, thermostats, door locks, and sensors. ZigBee’s mesh networking capability allows for reliable communication over extended distances and through obstacles, … Read more
EIGRP (Enhanced Interior Gateway Routing Protocol) and OSPF (Open Shortest Path First) are both routing protocols used in computer networks, but they differ in their operation and deployment scenarios. EIGRP is a proprietary Cisco routing protocol designed for efficient routing within enterprise networks. It uses a hybrid routing protocol that combines the benefits of distance-vector … Read more
The two main types of network security can be broadly categorized as preventive and detective measures. Preventive measures aim to stop security incidents from occurring by implementing controls such as firewalls, encryption, access controls, and authentication mechanisms. Detective measures, on the other hand, focus on identifying security breaches or incidents that have already occurred through … Read more
A wireless controller, such as a Wireless LAN Controller (WLC), functions by centralizing the management and coordination of wireless access points (APs) within a network. It operates as a dedicated device or software application that communicates with APs over the network. The WLC acts as a centralized point of control, allowing administrators to configure AP … Read more
Powerline networking utilizes existing electrical wiring within buildings to create a network connection. It allows devices to communicate and share data through the electrical outlets, effectively extending a network without the need for additional Ethernet cables or Wi-Fi signals. This technology is particularly useful in situations where Wi-Fi signals are weak or unreliable, or where … Read more
A LAN card, also known as a network interface card (NIC) or Ethernet adapter, is used to connect a computer or device to a local area network (LAN). Its primary function is to enable communication between the device and other devices or servers within the same LAN. The LAN card interfaces with the computer’s motherboard … Read more