What is the routing table in CCNA?

In CCNA (Cisco Certified Network Associate) certification and networking terminology, the routing table refers to a critical component within a router’s operating system that stores information about available routes to different network destinations. It is maintained dynamically by routing protocols or configured manually by network administrators. The routing table is fundamental to the router’s decision-making … Read more

What is the routing table method?

The routing table method refers to the process by which routers and layer 3 switches construct and maintain routing tables to facilitate packet forwarding across interconnected networks. This method involves dynamically learning and updating routing information using routing protocols such as RIP, OSPF, EIGRP, or BGP. Routers exchange routing updates with neighboring routers to build … Read more

What is the function of mirroring?

Mirroring, technology, typically refers to the process of replicating or duplicating the display of one device onto another. For example, screen mirroring allows you to display the screen of a smartphone, tablet, or computer onto a larger screen like a TV or projector. In network or server contexts, mirroring involves duplicating network traffic from one … Read more

What is port forwarding vs VPN?

Port forwarding and VPN (Virtual Private Network) serve different purposes in networking but can sometimes complement each other depending on the specific use case. Port forwarding involves redirecting incoming network traffic from one port on a router or firewall to another port on a different device or server within a private network. It is commonly … Read more

What is STP in routing and switching?

STP (Spanning Tree Protocol) in routing and switching is a network protocol used to prevent loops in Ethernet networks where multiple paths between switches could cause broadcast storms and network instability. STP operates by dynamically selecting a single “root bridge” among interconnected switches and then disabling redundant paths to ensure a loop-free topology. It accomplishes … Read more

What is port forwarding used for?

Port forwarding is used to redirect incoming network traffic from one port on a router or firewall to another port on a different device or server within a private network. It enables external users or devices to access specific services or applications hosted on devices behind the router or firewall. Common applications include hosting websites, … Read more

What are the benefits of VLAN tagging?

VLAN tagging offers several benefits in network management and operation. It allows network administrators to logically segment a physical network into multiple virtual LANs (VLANs), each representing distinct broadcast domains. By assigning VLAN tags to Ethernet frames, switches can identify and forward traffic based on VLAN membership, regardless of the physical port the traffic enters. … Read more

What are the functions of MAC?

The functions of MAC (Media Access Control) encompass several key roles in computer networking and communication protocols. Firstly, MAC addresses uniquely identify devices within a network, serving as their physical address. This allows devices to communicate with each other over Ethernet or Wi-Fi networks, ensuring data packets are correctly routed to their intended destinations based … Read more

What is VLAN tagging used for?

VLAN tagging is essential for segmenting and organizing network traffic within a single physical network infrastructure. It allows network administrators to logically group devices into separate broadcast domains, or VLANs, regardless of their physical location on the network. By assigning VLAN tags to network frames, switches can direct traffic more efficiently, improving network performance and … Read more

How does Wireshark capture the packets?

Wireshark captures packets by monitoring network interfaces in promiscuous mode, allowing it to intercept and record all packets passing through the interface. When Wireshark is running, it captures packets by listening to the network traffic on the specified interface or interfaces, capturing both incoming and outgoing packets for analysis. To capture HTTP packets specifically in … Read more