CCNA Revision (Session 2-1)

Channel:

MoMo-ElSafty - محمد الصفتي

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15,700

Published on August 12, 2023 12:27:58 AM ● Video Link: https://www.youtube.com/watch?v=8M6RjxN665k

Duration: 18:47

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12

1. Last Session Review
2. Network Models
• OSI Model
• TCP/IP MODEL
Group of Components
End Device: PC, PlayStation, TV
Intermediate Devices: Switches, Routers, Hubs.
Connectivity: Wired (Copper & Fiber)
Wireless
Connected Together
Topology:
Point to point,
Ring topology,
Mesh Topology,
Bus topology,
Star topology.
To provide a Service
Data Service: Browsing, File upload, file download, and E-Mail
Voice service
Video service
Smell service Virtual
Touch service Reality
Taste service Service
IoT (Internet of Things)
HUB
Physical Topology = Star topology
Logical Topology = Bus topology
SWITCH
Physical Topology= Star Topology
Logical Topology= Mesh Topology
LAN (local area network)
Only 100 Meter
Ethernet 10 MBPS
Fast Ethernet 100 MBPS
Giga Ethernet 1000 MBPS = 1 GIGA
10 GIGA Ethernet 10 GBPS
100 GIGA Ethernet = 100 000 000 000 bits per second
WAN (wide area Network)
DSL (Digital subscriber line)
7.5 KM without Repeater
X25
Frame relay
ATM (Asynchronous Transfer Mode)
PPP (Point to Point Protocol)
HDLC (High-Level Data Link Control) -(CISCO) 15000 KM / 40 GBPS بيشتغل على راوترات سيسكو بس
بين ايرلاندا والولايات المتحمدة الامريكية عابرة للمحيط الاطلنطى
MPLS (Multi-protocol label Switching) بيشتغل على اى راوتر (Standard)