Cisco Certified Network Associate (CCNA) Ferdous Ali Israt Senior Engineer, DigiCon Telecommunication Ltd. (MiME) CCNA, JNCIA, MTCNA M.Sc, B.Sc in EEE, University of Dhaka Experience: 4.5+ years Contact No.: +8801754088033 Email: ferdousaliisrat@gmail.com Index: Lecture-1 • • • • • • • • • • About “Cisco” An Overview of CCNA Certification Exam CCNA Exam Modules Excluded Topics from Old CCNA Necessary Cisco URLs Basics of Networking Benefits of Networking Types of Network Requirements for Network Configuration Common Networking Devices About “Cisco” • American multinational company located in California • Started in 1984 • Deals with manufacturing, designing, selling, networking equipments • Also deals with product certifications • Inventor of routers An Overview of CCNA Certification Exam • • • • • • • • • Exam code: 200-301 Started from 24th February 2020 Total marks in the exam: 1000 (fixed) Total number of questions: 102 (+/-) Types of questions: i. Objective (MCMA) 90+/-, (ii) Drag and Drop 12+/-, (iii) Simulation 4+/Duration of the exam: 2.5 hours Pass marks: 825 Exam medium: Online Certificate validity: 3 years CCNA Exam Modules • Network Fundamentals – routers, switches, cabling, TCP and UDP, IPv4 and IPv6 (Marks: 20%) • Network Access – VLANs and trunking, EtherChannel (Marks: 20%) • IP Connectivity - IP routing (static, default), OSPFv2 (Marks: 25%) • IP Services – NAT, NTP, DHCP, SNMP, DNS, SSH, QoS (Marks: 10%) • Security Fundamentals – VPN, wireless security, port security, ACL, AAA (Marks: 15%) • Automation and Programmability – REST APIs, Puppet, Chef, JSON (JavaScript, Object Notation), SDN (Software Defined Network) (Marks: 10%) Excluded Topics from Old CCNA • • • • Network Fundamentals – OSI model LAN Switching – Frame, VTP, Switch stack Routing – EIGRP, RIPv2, OSPFv3, Inter-VLAN routing WAN – PPP, MLPPP, PPPoE, GRE, BGP, WAN access Old certifications: • CCNA Routing & Switching • CCNA Data Center • CCNA Security • CCNA Voice Necessary Cisco URLs • Certification tracking: https://cp.certmetrics.com/cisco/en/login > CERTIFICATIONS Username: himel.univdhaka.apece@gmail.com Password: *********** • Networking Academy (NetAcad): https://www.netacad.com Username: himel.univdhaka.apece@gmail.com Password: *********** Basics of Networking • Interconnection of devices for data sharing or for communication is called networking. Benefits of Networking • Resource Sharing: Hardware resources (sharing computer, printer, scanner etc.) and software resources (sharing a data between a network or file sharing i.e. FTP, Email) • Communication: Communication between to devices/PC’s i.e. Email, chatting, video conference • Critical Storage: Storage of data from one computer to another computer in case of damage of the main machine Types of Network • Local Area Network (LAN): All devices are connected to a switch only. • Metropolitan Area Network (MAN): All devices are connected through switches and routers in a metropolitan area (e.g. Dhaka). • Wide Area Network (WAN): Two or more distinct areas (or, districts/cities) are connected. • Campus Area Network (CAN): Inside a campus (e.g. most of the universities in Bangladesh) • Personal Area Network (PAN): Network inside a device. Requirements for Network Configuration • Network using devices (i.e., PC, phone, printer) • Operating System (e.g. Windows, Linux) • Network Interface Card (NIC) • Drivers • Communication media (cable, connection, Wi-Fi) • Protocols (e.g. IP, TCP, HTTP, FTP) Common Networking Devices Repeater • Acts as a signal booster or amplifier • Used in Coaxial cable network • Maximum 4 repeaters can be connected in a cable network Common Networking Devices Hub • Used to connect multiple devices • Known as multiport repeater • Each port creates a broadcast signal to find any device, this process is repeated each and every time to find any MAC address. • Slower data communication • Multiple works cannot be possible at the same time, half duplex • Works on 10mbps Common Networking Devices Bridge • Provides connections between LAN’s • Also perform a check to the data whether it should cross the bridge or not. • It makes each port of the network more efficient. Common Networking Devices Switch • It is also used to connect multiple devices • Switch contains a RAM and creates a MAC Address list with the corresponding port i.e. MAC Address Table. MAC Addresses are collected at the first time of broadcasting from any port. This process is not repeated for the next time of communication • More faster data communication, known as intelligent hub • Multiple works can be done at the same time, full duplex • Works on 10/100/1000 mbps Common Networking Devices Router • Routers are used to connect multiple networks • Router was first founded by CISCO in 1984 • Now a days lots of companies i.e. Juniper, MikroTik, Huawei are manufacturing routers • Router separates the broadcast domain, finds best path to the destination, forwards packets, filters the packets Thanks!!!
