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Lec_3_BBA100student1.pptxComputer Networking and Cybersecurity
Dr. Hak J. Kim
Associate Professor
Department of Information Systems & Business Analytics
Educating for Personal and Professional Achievement
Today’s Menu
Computer Network Concepts
Internet
Cloud Computing
Cybersecurity
Cisco Packet Tracer Demo
Business Data Communication
Successful Data Communications
Information
Information and Communication Technologies (ICT)
Employees
Suppliers
Customers
Regulators
Facilities
Applications
Successful Business Process
Very challenging in large and geographically dispersed enterprises!
IP Networks
Information is transmitted to each device by networking technology
Local Area Network (LAN)
Wide Area Network (WAN)
Internet
The network of network using TCP/IP protocol suite
The largest network in the world
Internet
How to deliver data ?
Packet
IP addressing
Routing (Optimal Path)
Characteristics of Internet Protocol (IP)
Connectionless (packetized)
Hierarchical addressing
Best-effort delivery
IP Address
Communications Tasks
Encoding
Signaling
Modulation
Multiplexing
Transmission
De-Multiplexing
De-Modulation
Decoding
Cloud Computing
The delivery of computing resources (i.e., servers, storage, databases, networking, software, and more over the Internet
Cybersecurity
Remote Branch
VPN
VPN
Iron Port
Firewall
IPS
Web Server
Email Server
DNS
CSA
Hackers
IPSec (Cybersecurity Model)
Business Partner
with a Cisco Router
Regional Office with a Cisco PIX Firewall
SOHO with a Cisco
SDN/DSL Router
Mobile Worker with a Cisco VPN Client on a Laptop Computer
ASA
Legacy
Concentrator
Main Site
Perimeter
Router
Legacy Cisco
PIX
Firewall
IPsec
POP
Corporate
The C-I-A Model
Encryption
Hashing
Job Demands
Cisco Certificates
General
Focused
Expert: CCIE®
Professional: CCNP®, CCIP®, CCSP®,
CCVP™, CCDP®
Associate: CCNA®, CCDA®
Security
IP Communications
Wireless
Storage Networking
Optical
Advanced Routing and Switching
Foundation
Cisco Certified Entry Network
Technician (CCENT™)
NEW
CCNA Security
CCNA Voice
CCNA Wireless
NEW
Cisco Certificates
“Certifications validate your practical experience. You need Cisco certifications for any sort of networking role – it’s what employers demand”
Adrian Cassar
Business Systems Engineer, Budweiser UK
“Holding a Cisco certification enabled me to enter the career of my dreams, and now I have the opportunity to work for one of the most recognized productions studios in the world.”
Chris Cugno, Senior Network Engineer, DreamWorks Animation SKG
Cisco Network Academy
Cisco Packet Tracer
- Demo -
Educating for Personal and Professional Achievement
Next Session
Internet of Things (IoT)
Big Data
Business Analytics
