Part 23 of C# .NET Bootcamp: String Parsing

In this lesson, you will learn about how to parse string inputs.

Part 11 of C# .NET Bootcamp: The .NET Documentation

In this lesson, you are going to learn about how to get help from the .NET documentation.

How did the decline of the court and the rise of the warrior class shape the evolution of Buddhist aesthetic, spiritual, and philosophical concepts? Find out in this illuminating lecture, which covers the massive growth of Pure Land Buddhism (the dominant form in Japan today) and the two main schools of Zen Buddhism.

Part 51 of C# .NET Bootcamp: Exception Handling in C# language

Part 16 of C# .NET Bootcamp: ⁣Program Arguments

In this lesson, you are going to learn about Program Arguments in the C# language and its compiler

Part 16 of Computer Networking Fundamentals: Routers

Routers

At the end of this episode, I will be able to:

1. Describe the basics of routers and the routing process.

Learner Objective: Describe the basics of routers and the routing process.

Description: In this episode, the learner will identify the basics of routing and the routing process.

• Introduction to Network Hardware
  • Routers+
    • Routers - a connectivity device that determines the short path to send traffic. Routers can send traffic to networks that they are not connected to. Routers use IP addresses to determine where to send traffic and operates on layer 3 of the OSI model.
    • Routing table - this routing element is a database that lists all the routes known to the router. These tables can be populated dynamically with a routing protocol or statically through manual configuration.
      • Components
        • Default route - is a route that routes traffic with no specific address of the next hop. In client computers this is typically the address of the default gateway.
        • Network Destination - the network IDs of known destination networks.
        • Netmask - the subnet mask for the destination network.
        • Gateway - the IP address of the next hop to which the packet will be forwarded.
        • Interface - this IP address or outgoing interface that connects to the destination network.
        • Metric - a value assigned call a cost assigned to reach the destination network. The lower the cost, the better the route.
    • Static vs. dynamic routing
      • Static routing - these are manually defined routes that are configured by and admin. These routes will not change if a shorter route is learned by dynamic routing protocols.
      • Dynamic routing - these are routes that are learning through routing protocols and communication with adjacent routers sharing routing information.
    • Routing protocols
      • Routing Information Protocol (RIP) - this is a dynamic routing protocol also known as a distance vector protocol that uses a hop count and the routing metric to determine the shortest path.
      • Open Shortest Path First (OSPF) - this is a dynamic routing protocol also known as a link state routing protocol. OSPF is a complex routing protocol that uses the topology information of the nearest neighbor routers to determine the shortest path.
      • Border Gateway Protocol (BGP) - this is a dynamic routing protocol used to determine the shortest path to route traffic across the Internet.
    • The routing process
      • When a router receives an IP packet, the router uses the destination IP address in the packet to determine where to send the packet. The router inspects it's routing table to identify the short path (route) to send the data.
    • Network Address Translation (NAT) - this is a routing technique that allows network devices within a LAN area network, using private IP addresses, to send traffic across the Internet by translating private and public IP addresses.

Examine the life and times of one of the era's great travel writers. Following the journey of al-Masudi gives you a broad tour of the Islamic Golden Age and its history. After reviewing his biography and reflecting on his reasons for traveling, you will survey the many subjects he wrote about, from geography and geology to the strategy of backgammon.