Networking: Routing and Router Devices

A router operates at the network layer of the OSI model and at the internet layer of the TCP/IP model.

Routing is a mechanism that selects a way for data to be transmitted from the source to the destination.

A routing algorithm is just a piece of hardware that determines the best path by which a packet may be sent.

The metric used by routing algorithms to identify the optimum path for packet delivery can be hop count, bandwidth, latency, and current load on the network.

One of the main functions of a router is to act as an intermediary between networks.

When a router receives a packet, it examines the source IP address to determine the best path for the packet to reach its destination.

Routers use routing protocols and algorithms to build and maintain a routing table.

NAT allows multiple devices in a private LAN to share a single public IP address.

Routers can implement access control lists (ACLs) to filter incoming and outgoing packets based on specific criteria.

Routers can interconnect networks that use different technologies, such as Ethernet, Wi-Fi, and WAN technologies.

Routers use various metrics and algorithms to determine the best path for forwarding data.

Routers can adapt to changes in the network topology and automatically update their routing tables using dynamic routing protocols.

Routers can prioritize certain types of traffic over others using Quality of Service (QoS).

Routers forward the packet directly to the destination host without using next-hop routers.

NAT replaces the public IP addresses of the LAN devices with its private IP address.

QoS helps manage network congestion by guaranteeing unlimited bandwidth for all traffic types.

A router operates at the ______ layer of the OSI model and at the internet layer of the TCP/IP model.

Routing algorithms are used to route ______.

The measure used by routing systems to identify the optimum path for packet delivery is the ______.

The routing algorithm creates and maintains the routing table for the path decision ______ process.

Three main functions of a router include data packet ______, network address filtering, and acting as an intermediary between networks.

When a router receives a packet, it examines the destination IP address and consults its ______ to determine the best path for the packet to reach its destination.

Routers use routing protocols and algorithms to build and maintain a routing ______.

NAT is a technique used by routers to allow multiple devices in a private local area network (LAN) to share a single public IP ______.

Routers can implement access control lists (ACLs) to filter incoming and outgoing packets based on specific ______.

Routers can interconnect networks that use different technologies, such as Ethernet, Wi-Fi, and wide-area network (WAN) technologies like T1, DSL, or ______ connections.

Routers use various metrics and algorithms to determine the best ______ for forwarding data.

Routers can adapt to changes in the network topology and automatically update their routing tables by using dynamic routing ______.

Routers can prioritize certain types of traffic over others using Quality of ______ (QoS).

The router then forwards the packet to the appropriate next-hop router or directly to the ______ host.

Routing: Routers use routing protocols and algorithms to build and maintain a routing ______.

Routers can interconnect networks that use different technologies, such as Ethernet, Wi-Fi, and wide-area network (WAN) technologies like T1, DSL, or ______ connections.