CCNA Router and Switch eSIM



CCNA Router and Switch eSIM is part of a recommended learning path from Cisco Systems that can include simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press.Titles in this series provide officially developed exam preparation materials that offer interactive learning, assessment, and networking simulation experience to help Cisco Career Certification candidates learn concepts and understand the application of networking concepts in a real-world setting.


CCNA Router and Switch eSIM improves upon the traditional interactive multimedia learning experience for networkers who are:


  • Preparing for the CCNA exam,
  • New to the networking field, or 
  • Practitioners who want to perfect their hands-on configuration skills. 

CCNA Router and Switch eSIM combines on two CD-ROMs tools that not only provide intermediate- to late-stage hands-on test preparation but also provide help in translating theoretical learning to real-world application. Network simulations, tutorial activities, practice test questions, and other electronic learning tools result in a comprehensive and interactive package for CCNA self-study.


CCNA Router and Switch eSIM is part of a recommended learning path from Cisco Systems that can include simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. 


  • Open and freely configurable software-based network simulation environment enables hands-on exploratory activities and experimentation
  • Three network environments: five routers, three switches, and two switches with one router
  • Develop and implement your own IP addressing schemes
  • Save and load your router and switch configurations
  • Ability to configure Cisco 2500 Series routers, Cisco 1900 Series switches, VLANs, ACLs, and hosts within the simulation environment
  • Syntax-oriented labs, instructional videos, visual training, and self-assessment questions are included to provide additional skills training and CCNA preparation
 
CCNA Router and Switch eSIM also includes the following self-study learning tools:


  • Lab activities Enter router commands, drag and drop objects, and answer questions on topics ranging from IP address classes to basic router configuration to extended ACLs. They are designed to make sure you have a full understanding of router command syntax.

  • 200 CCNA Flashcard questions Choose from among the CCNA skill areas, set the amount of time and the number of questions, choose whether questions are ordered or random, and build your own practice CCNA exam.

  • Video lessons Expert instructors guide you through processes, such as subnetting Class C IP addresses; complex topics, such as dedicated and switched WAN technologies; and the various components of selected Cisco devices. This expert guidance delivers specific topics in an easy-to-comprehend format.

  • PhotoZooms Zoom in for close-up views of high-quality photographs of networking equipment and other products such as cables and diagnostic equipment. You can choose from various views, get detailed information on selected product parts, and zoom in for close-up views to familiarize you with these critical network environment devices.



This interactive self-study learning products on two CD-ROMs enable you to:

  • Practice with freely configurable software-based network scenarios
  • Work within three network environments
  • Develop your hands-on skills
  • Gain confidence for your CCNA exam


Get you CCNA Routers and Switches e-SIM, click the links below:
















CCNA CBT


CCNA is a certification by Cisco to help network associates to get into the certification mainstream. This certification leads them to more advanced certifications like CCNP and CCIE. This certification comprises of ICND 1 (Introduction to Communication and Network Devices Part 1)  and ICND 2(Introduction to Communication and Network Devices Part 2). To get certified, you need to pass both the exams i.e., ICND 1 and ICND 2. This CBT comes in 2 CDs. Below is the complete list of topics, CD wise, you will study in this CBT. 


Cisco CCNA/CCENT - Exam-Pack 640-822: ICND1:


CD 1 contains topics like:


- Welcome to Cisco CCENT!
- Foundations: What is a Network?
- Foundations: Living in the OSI World
- Basic TCP/IP: Addressing Fundamentals
- Basic TCP/IP: TCP and UDP Communication
- Basic TCP/IP: Understanding Port Numbers
- Basic TCP/IP: The Tale of Two Packets
- LANs: Welcome to Ethernet
- LANs: Understanding the Physical Connections
- LANs: Understanding LAN Switches
- LANs: Working with the Cisco Switch IOS
- LANs: Initial Setup of a Cisco Switch
- LANs: Configuring Switch Security
- LANs: Configuring Switch Security, Part 2
- LANs: Optimizing and Troubleshooting Switches
- Wireless: Understanding Wireless Networking
- Wireless: Wireless Security and Implementation
- Advanced TCP/IP: Working with Binary
- Advanced TCP/IP: IP Subnetting, Part 1
- Advanced TCP/IP: IP Subnetting, Part 2
- Advanced TCP/IP: IP Subnetting, Part 3
- Routing: Initial Router Configuration
- Routing: SDM and DHCP Server Configuration
- Routing: SDM and DHCP Server Configuration, Part 2
- Routing: Implementing Static Routing
- Routing: Implementing Dynamic Routing with RIP
- Routing: Internet Access with NAT and PAT
- Routing: WAN Connectivity
- Management and Security: Telnet, SSH, and CDP
- Management and Security: File Management
- Last Words for Test Takers

Cisco CCNA - Exam-Pack 640-816: ICND2:
 

CD 2 contains topics like:

- Review: Rebuilding the Small Office Network, Part 1
- Review: Rebuilding the Small Office Network, Part 2
- Review: Rebuilding the Small Office Network, Part 3
- Switch VLANs: Understanding VLANs
- Switch VLANs: Understanding Trunks and VTP
- Switch VLANs: Configuring VLANs and VTP, Part 1
- Switch VLANs: Configuring VLANs and VTP, Part 2
- Switch STP: Understanding the Spanning-Tree Protocol
- Switch STP: Configuring Basic STP
- Switch STP: Enhancements to STP
- General Switching: Troubleshooting and Security Best Practices
- Subnetting: Understanding VLSM
- Routing Protocols: Distance Vector vs. Link State
- Routing Protocols: OSPF Concepts
- Routing Protocols: OSPF Configuration and Troubleshooting
- Routing Protocols: EIGRP Concepts and Configuration
- Access-Lists: The Rules of the ACL
- Access-Lists: Configuring ACLs
- Access-Lists: Configuring ACLs, Part 2
- NAT: Understanding the Three Styles of NAT
- NAT: Command-line NAT Configuration
- WAN Connections: Concepts of VPN Technology
- WAN Connections: Implementing PPP Authentication
- WAN Connections: Understanding Frame Relay
- WAN Connections: Configuring Frame Relay
- IPv6: Understanding Basic Concepts and Addressing
- IPv6: Configuring, Routing, and Interoperating
- Certification: Some Last Words for Test Takers



Get your complete CCNA CBT(Computer Based Training) from the links below:

CD 1 : Part 1Part 2, Part 3

CD 2 : Part 1Part 2, Part 3






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Routing table



In computer networking a routing table, or Routing Information Base (RIB), is an electronic table (file) or database type object that is stored in a router or a networked computer. The routing table stores the routes (and in some cases, metrics associated with those routes) to particular network destinations. This information contains the topology of the network immediately around it. The construction of routing tables is the primary goal of routing protocols and static routes.
Routing tables are generally not used directly for packet forwarding in modern router architectures; instead, they are used to generate the information for a smaller forwarding table which contains only the routes which are chosen by the routing algorithm as preferred routes for packet forwarding, often in a compressed or pre-compiled format that is optimized for hardware storage and lookup. The remainder of this article will ignore this implementation detail, and refer to the entire routing/forwarding information subsystem as the "routing table".
Basics
A routing table utilizes the same idea as one would when using a map in package delivery. Whenever a node needs to send data to another node on a network, it needs to know where to send it. Whenever a device cannot directly connect to the destination node, it needs to find another way to send the package. Whenever a node does not know how to send the package it sends an IP packet to a gateway in the LAN. Since this is a complicated task to route the package to the correct destination, a gateway needs to keep track of the way to deliver this. A Routing Table is the way in which this data is stored, like a map. It is a database which keeps track of paths like a map and provides this information to the node requesting the data. Current router architecture separates the Control Plane function of the routing table from the Forwarding Plane function of the forwarding table
Hop-by-hop routing, each routing table lists, for all reachable destinations, the address of the next device along the path to that destination; the next hop. Assuming that the routing tables are consistent, the simple algorithm of relaying packets to their destination's next hop thus suffices to deliver data anywhere in a network. Hop-by-hop is the fundamental characteristic of the IP Internetwork Layer and the OSI Network Layer, in contrast to the functions of the IP End-to-End and OSI Transport Layers.
Function
During the process of routing, decisions of hosts and routers are aided by a database of routes known as the routing table. The routing table is not exclusive to a router. Depending on the routable protocol, hosts may also have a routing table that may be used to decide the best router for the packet to be forwarded. Host-based routing tables are optional for the Internet Protocol, as well as obsolete routable protocols such as IPX.
The types of entries in a routing table:
Network route: A route (path) to a specific Network ID in the internetwork. If it's a gateway, the G flag will appear next to that IP address.


Host Route: A route to a specific internetwork address (Network ID and Host ID). Host routes allow intelligent routing decisions to be made for each network address. Host routes are used to create custom routes to control or optimize specific types of network traffic. The H flag will appear next to IP addresses that belong to hosts.


Default route: A route that is used when no other routes for the destination are found in the routing table. If a router or end system (such as a PC running Microsoft Windows or Linux), cannot find a route for a destination, the default route is used.


Difficulties with routing tables
The need to record routes to large numbers of devices using limited storage space represents a major challenge in routing table construction. In the Internet, the currently dominant address aggregation technology is a bitwise prefix matching scheme called Classless Inter-Domain Routing (CIDR).
Since in a network each node presumably possesses a valid routing table, routing tables must be consistent among the various nodes or routing loops can develop. This is particularly problematic in the hop-by-hop routing model in which the net effect of inconsistent tables in several different routers could be to forward packets in an endless loop. Routing loops have historically plagued routing, and their avoidance is a major design goal of routing protocols.
Contents of routing tables
The routing table consists of at least three information fields:-
  1. the network id: i.e. the destination network id
  2. cost: i.e. the cost or metric of the path through which the packet is to be sent
  3. next hop: The next hop, or gateway, is the address of the next station to which the packet is to be sent on the way to its final destination
Depending on the application and implementation, it can also contain additional values that refine path selection:
  1. quality of service associated with the route. For example, the U flag indicates that an IP route is up.
  2. links to filtering criteria/access lists associated with the route
  3. interface: such as eth0 for the first ethernet card, eth1 for the second ethernet card, etc.
Routing tables also are a key aspect of certain security operations, such as unicast reverse path forwarding (uRPF). In this technique, which has several variants, the router also looks up, in the routing table, the source address of the packet. If there exists no route back to the source address, the packet is assumed to be malformed or involved in a network attack, and is dropped.
Network id
Cost
Next hop
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