CCNA 200-301 Study Notes (2020) PDF

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CCNA Study Notes (2020) Based on CISCO LEARNING VIDEOS &MATERIALS Mohammad Mushfequr Rahman ------------------------------------------------------------- “My Lord, increase me in knowledge” (Quran 20:114) Contents Standardization .....................................................................

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CCNA Study Notes (2020) Based on CISCO LEARNING VIDEOS &MATERIALS Mohammad Mushfequr Rahman ------------------------------------------------------------“My Lord, increase me in knowledge” (Quran 20:114)

Contents Standardization ..................................................................................................................................... 10 OSI .................................................................................................................................................... 10 TCP/IP ............................................................................................................................................... 10 Metrics .................................................................................................................................................. 11 Availability ......................................................................................................................................... 11 Reliability........................................................................................................................................... 11 Scalability .......................................................................................................................................... 11 Summarization .................................................................................................................................. 11 Convergence ..................................................................................................................................... 11 Security ............................................................................................................................................. 11 Cost ................................................................................................................................................... 11 Virtualization ..................................................................................................................................... 11 Range ................................................................................................................................................ 12 Frequency/Amplitude ........................................................................................................................ 12 Bandwidth ......................................................................................................................................... 12 Throughput ....................................................................................................................................... 12 Congestion/Saturation....................................................................................................................... 12 Rate................................................................................................................................................... 12 Volume.............................................................................................................................................. 12 Latency-delay/Drop/Burst/Smooth .................................................................................................... 12 Load .................................................................................................................................................. 12 Network Functionalities......................................................................................................................... 12 Network Components ........................................................................................................................... 12 Traffic ................................................................................................................................................ 12 Data .................................................................................................................................................. 13 Operations ........................................................................................................................................ 13

Protocols ........................................................................................................................................... 13 Applications/processes ...................................................................................................................... 13 Ports.................................................................................................................................................. 13 Devices .............................................................................................................................................. 13 Interface ........................................................................................................................................ 13 Infrastructure .................................................................................................................................... 13 Media ................................................................................................................................................ 13 QoS ................................................................................................................................................... 13 QOS phases ................................................................................................................................... 15 Enterprise QoS Guidelines ............................................................................................................. 15 Models .......................................................................................................................................... 15 The DiffServ model has these characteristics ................................................................................. 16 DiffServ has these major benefits .................................................................................................. 16 DiffServ also has these drawbacks ................................................................................................. 16 Terminologies ................................................................................................................................ 16 Mechanism .................................................................................................................................... 16 Four-class policy ............................................................................................................................ 22 Four major problems affect quality on converged networks........................................................... 22 Management Technique ................................................................................................................ 22 Topology ........................................................................................................................................... 23 IOS .................................................................................................................................................... 23 Relay Agent ....................................................................................................................................... 23 Media.................................................................................................................................................... 23 baseband........................................................................................................................................... 23 Features ............................................................................................................................................ 24 Network Types ...................................................................................................................................... 24 LAN ................................................................................................................................................... 24 VPN ................................................................................................................................................... 25 Mode ............................................................................................................................................. 25 ISP Connectivity Options .................................................................................................................... 26 WAN.................................................................................................................................................. 26 WAN Connectivity Options............................................................................................................. 26 Dedicated ...................................................................................................................................... 26

Switched ........................................................................................................................................ 27 Internet based ............................................................................................................................... 28 WAN Components ......................................................................................................................... 30 WAN Devices ................................................................................................................................. 30 Topology........................................................................................................................................ 31 WIRELESS .......................................................................................................................................... 32 Components .................................................................................................................................. 32 Types ............................................................................................................................................. 32 Ad hoc ........................................................................................................................................... 32 Wifi Direct ..................................................................................................................................... 33 Infrastructure Mode ...................................................................................................................... 33 Centralized Architecture ................................................................................................................ 35 Control and Provisioning of Wireless Access Points ........................................................................ 36 Mapping SSIDs and VLANS ............................................................................................................. 36 Switch Config ................................................................................................................................. 37 Three types of VLAN in WLAN ........................................................................................................ 37 Work Bridge Group ........................................................................................................................ 37 Wifi Channels................................................................................................................................. 37 WIFI Config .................................................................................................................................... 38 DHCP ............................................................................................................................................. 38 DNS ............................................................................................................................................... 38 Network Time Protocol .................................................................................................................. 39 AAA ............................................................................................................................................... 39 Architecture and Virtualization .............................................................................................................. 39 Network Design ................................................................................................................................. 39 Poor Design ................................................................................................................................... 40 Spine-Leaf Design .......................................................................................................................... 40 Three Tier Design ........................................................................................................................... 41 Three Layers ...................................................................................................................................... 42 Enterprise Architecture...................................................................................................................... 44 Cloud ................................................................................................................................................. 45 Cloud Features............................................................................................................................... 45 Four Cloud Models......................................................................................................................... 46

Cloud Architecture ......................................................................................................................... 48 Virtualization ..................................................................................................................................... 49 Hypervisor Tasks ............................................................................................................................ 49 Types of full virtualizations ............................................................................................................ 49 Benefits ......................................................................................................................................... 49 Networking Virtualization .............................................................................................................. 50 Container....................................................................................................................................... 51 SDN ................................................................................................................................................... 51 Architecture................................................................................................................................... 52 SDN API ......................................................................................................................................... 52 SDN Programming ......................................................................................................................... 53 Model Driven ................................................................................................................................. 54 NETCONF ....................................................................................................................................... 56 Config Management ...................................................................................................................... 57 CISCO DNA......................................................................................................................................... 58 Software-Defined Access ............................................................................................................... 59 Cisco SD-Access Elements .............................................................................................................. 59 Benefits ......................................................................................................................................... 61 CISCO SD WAN .................................................................................................................................. 61 Components .................................................................................................................................. 62 Network Devices ................................................................................................................................... 63 The data plane ................................................................................................................................... 63 The control plane .............................................................................................................................. 64 The management plane ..................................................................................................................... 65 Switch ............................................................................................................................................... 67 Router ............................................................................................................................................... 68 Steps of Boot ................................................................................................................................. 68 File System ........................................................................................................................................ 69 Device Configuration ............................................................................................................................. 72 Duplex ............................................................................................................................................... 72 Duplex configuration guidelines ..................................................................................................... 72 Speed ................................................................................................................................................ 72 Console ............................................................................................................................................. 72

Route ................................................................................................................................................ 72 Addressing......................................................................................................................................... 73 IPv4 ............................................................................................................................................... 73 Classless interdomain routing (CIDR).............................................................................................. 73 Variable-length subnet masking (VLSM) ......................................................................................... 73 Network Address Translation (NAT) ............................................................................................... 73 Private IPv4 addresses space (Request for Comments [RFC] 1918) ................................................. 74 IPv6 ............................................................................................................................................... 74 Pv6-IPv4 Compatibility ....................................................................................................................... 78 VLAN ................................................................................................................................................. 79 Design Consideration ..................................................................................................................... 80 Port Configuration ......................................................................................................................... 80 Inter-VLAN Routing ............