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  • CCNA Training
    Spine-leaf architecture is a modern network topology widely used in data centers and cloud environments It’s designed to offer improved scalability, high availability, and consistent low-latency communication
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    In this tutorial we will connect two routers via static route with GNS3 Static route and Dynamic route Static route tells the device exactly where to send traffic, no matter what
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    I have completed 9tut web explanation and also 2 books I am looking for some practice questions before I take the exam Does anyone some real type of question or exam that will help me to get prepare
  • CCNA Training » Subnetting Tutorial – Subnetting Made Easy - 9tut. com
    Table 1 – Default subnet mask range of each class Class A addresses begin with a 0 bit Therefore, all addresses from 1 0 0 0 to 126 255 255 255 belong to class A (1= 0 000 0001; 126 = 0 111 1110) The 0 0 0 0 address is reserved for default routing and the 127 0 0 0 address is reserved for loopback testing so they don’t belong to any class
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    In this article we will learn about the OSPF Routing Protocol Open-Shortest-Path-First (OSPF) is the most widely used interior gateway protocol routing protocol on the world because it is a public (non-proprietary) routing protocol while its biggest rival, EIGRP, is a Cisco proprietary protocol so other vendors can’t use it (edit: EIGRP has become a public routing protocol since 2013)
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    Router(dhcp-config)#domain-name 9tut com: Configure a domain-name: Router(dhcp-config)#lease 0 12: Duration of the lease (the time during which a client computer can use an assigned IP address) The syntax is “lease {days[hours] [minutes] | infinite}” In this case the lease is 12 hours The default is a one-day lease
  • CCNA Training » WAN Tutorial - 9tut. com
    WAN Devices Terminologies WAN includes many devices and terminologies so you should grasp them Below are the most popular ones: + Router: a device provides internetworking and WAN access interfaces that connect to the provider network + Data Terminal Equipment (DTE): Typically, DTE is the router (at the customer side) + Data Communications Equipment (DCE): provides a clocking signal used





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