CST3607 Class Notes 2018-11-08

Read / Do

CCNA Routing and Switching Study Guide 2nd Edition: Chapter 10: Layer 2 Switching

  • Read Chapter 10: Layer 2 Switching
  • Do the Written Labs
  • Answer the Review Questions
  • Do the Hands-on Labs
  • Listen to RunAs Radio: Show #442: Thinking Through Security Policy with Dana Epp
    • What does your security plan look like? Richard chats with Dana Epp about the ever increasing attack surface of our organizations and the ongoing battle to provide better tools and techniques to keep the lights on.

Chapter 15 Spanning Tree Protocol (STP) (R&S 2nd Ed.)

  • Read pages 602 – 618 (Enhanced Switching Technologies)

Exam 2

You must be able to correctly answer all of the Review Questions from each chapter.

This exam includes, but is not limited, to the following:

Chapter 5 (VLSM)

  • Block Size

Chapter 6: Cisco’s Internetworking Operating System (IOS)

  • Modes of Operation in Cisco IOS, how to get into each mode, and identify the CLI prompt for each mode.:
    • User EXEC (aka unprivileged mode)
    • Privileged EXEC
    • Global Configuration
    • Interface Configuration
  • Purpose and options of the Configuration Register
  • ROM Monitor (rommon)
  • What are the four types of memory used on a Cisco Router?
    • What information or files are stored in each type of memory?
  • What is the command to set an encrypted password using Cisco IOS?

Chapter 7: Components of a Cisco Router and Switch, CDP (Cisco Discover Protocol)

Chapter 8: Managing Cisco Devices

  • Define the Cisco router components.
    • Describe the functions of the bootstrap, POST, ROM monitor, mini-IOS, RAM, ROM, flash memory, NVRAM, and the configuration register.
  • What are the steps in the router boot sequence?
  • Managing the Configuration Register
  • Understanding the Configuration Register Bits
  • Checking the Current Configuration Register Value
  • Recovering Passwords
  • Interrupting the Router Boot Sequence
  • Changing the Configuration Register
  • Save the configuration from RAM to NVRAM

Chapter 9: IP Routing

  • Static routing
  • Dynamic routing
  • Distance Vector routing protocols
  • Link State routing protocols
  • Default Route
  • Default Gateway
  • Next Hop IP address (Neighbor router)
  • IP Routing Table
    • Prefix, Network Address, Next Hop IP address, Interface
    • Administrative distance
    • Metric
  • RIP (Routing Information Protocol)
    • What is the maximum hop count for RIP?
  • By default, what is the maximum hop count of IGRP-routed packets?
  • What are some Interior Gateway Protocols (IGP)?
  • What are some Exterior Gateway Protocols (EGP)?
  • Convergence on routers
  • Chapter 18: OSPF (Open Shortest Path First)
  • OSI Reference Model
    • All seven layers, their functions, protocols, etc.
  • Subnetting
    • block size to determine the subnet increments. (265 – “interesting octet”)

Chapter 18: OSPF

  • In OSPF, why is “Area Zero” a.k.a. backbone, important?

Describe How A Network Works

  • Describe the purpose and functions of various network devices.
  • Select the components required to meet a network specification.
  • Use the OSI reference model and its associated protocols to explain how data flows in a network.
  • Describe the purpose and basic operation of the protocols in the OSI reference model.
  • Determine the path between two hosts across a network.
  • Describe the components required for network and Internet communications.
  • Identify and correct common network problems at layers 1, 2, 3 and 7 using a layered model approach.
  • Differentiate between LAN/WAN operation and features.
  • Differentiate between IP addresses, MAC addresses, and at which phase and layer of the OSI Reference Model each type of address is used.

Diagnostics & Troubleshooting Commands

  • ICMP (Internet Control Message Protocol)
  • Traceroute and how TTL is used with Traceroute.
    • e.g. Does the router evaluate TTL before or after decrementing TTL, to determine if the packet should be forwarded?
  • ping
  • ipconfig /all
  • tracert (on Windows) or traceroute (on Linux)
  • show ip interface brief
  • show ip route
  • show ip protocol
  • show controllers s0/0 (To determine if a serial interface is DCE or DTE)
  • version

Forwarding Techniques

  • Techniques used to make the size of the routing table manageable.
  • Next-Hop Method
  • Network-Specific Method
  • Default Method

Delivery of a Packet

  • Direct Delivery
  • Indirect Delivery

Logical and Physical addressing during the forwarding process:

  • When a packet is destined for a different network, what address needs to be resolved by the source host?
    • Which protocol is used to resolve the address?
  • Autonomous System (AS)
  • Convergence (routing protocol)
  • Convergence (Switch) (Loop prevention)
  • Routing Tables
    • The minimum fields needed in a routing table:
      • (“Type” is not one of the minimum fields.)
  • Routing [within] an autonomous system
    • Which types/vectors of routing protocols are used for routing [within] an autonomous system?
    • Which routing protocols are used for routing [within] an autonomous system?
  • Routing [between] autonomous systems
    • Which types/vectors of routing protocols are used for routing [between] autonomous systems?
    • Which routing protocols are used for routing [between] autonomous systems?
  • Loop prevention in Routing Protocols

Leave a Comment