Paper 5

COMPUTER NETWORKS

This unit specifies competencies required to recognize foundations of graphic design. It involves: applying Computing skills, Identifying key features of a computer network, Identifying functions of a computer network and identifying designing a network.

On completion, a candidate should be able to

Apply Computing skills
Identify key features of a computer network
Identify functions of a computer Network
Identify network protocols and standards
Design a Network

Content

1
Apply Computing skills
Apply Computing skills
1. Definition of key terms
  1. Computer
  2. Data
  3. Sharing
  4. Processing
  5. Information
2. Computer hardware
  1. Peripheral devices
  2. Ports
  3. Cables
  4. Network card
3. Computer software
  1. Operating system
  2. Networking software
  3. Drivers
4. Application areas of computer
5. Benefits of using computers
6. Computer safety precautions
2
Identify key features of a computer network
Identify key features of a computer network
1. Network topologies
  1. Logical Topologies
  2. Physical Topologies
  3. Mesh Topology.
  4. Star Topology.
  5. Bus Topology.
  6. Ring Topology.
  7. Hybrid Topology.
2. Advantages and disadvantages of the different network topologies
3. Medium Access control, CSMA/CD, Token, polling
4. Network cables
  1. Unshielded Twisted Pair (UTP) Cable.
  2. Shielded Twisted Pair (STP) Cable.
  3. Coaxial Cable.
  4. Fibre Optic Cable.
5. Network types
  1. Personal Area Network (PAN)
  2. Local Area Network (LAN)
  3. Wireless Local Area Network (WLAN)
  4. Campus Area Network (CAN)
  5. Metropolitan Area Network (MAN)
  6. Wide Area Network (WAN)
  7. Storage-Area Network (SAN)
  8. System-Area
  9. Network (also known as SAN)
3
Identify functions of a computer Network
Identify functions of a computer Network
1. Definition of terms
  1. Computer network
  2. Internet
  3. Intranet
  4. Extranet
  5. World Wide Web(WWW)
  6. Node
  7. Server
2. Components of a network
  1. Hub
  2. Bridge
  3. Switch
  4. Router
  5. Hub
  6. Network Interface Card(NIC)
3. Transmission Media
  1. Guided
  2. Non-guided
4. Functions of a computer network
4
Identify Computer network protocols
Identify Computer network protocols
1. Protocols
  1. OSI model layers
  2. TCP/IP protocol
  3. OSI protocols and TCP protocols comparison
  4. HTTP
  5. HTTPs
  6. FTP
  7. POP3
  8. IMAP
  9. SMTP
  10. UDP
2. IP addresses
  1. Types ■ Private ■ Public ■ APIPA
  2. IPv4 and IPV6 address types
  3. Unicast, broadcast and multicast
  4. Sub netting IPv4 and IPV6.
  5. Variable Length subnet masking(IPv4)
  6. Routing Algorithms
3. Subnet mask Functions of network components
5
Design a Network
Design a Network
1. Network Design
  1. Hierarchical model network design
  2. Flat model network design
  3. Modular Network Design
  4. Campus Network Design Topology
  5. Enterprise Edge Topology
2. Network designing
3. Availability Manageability
4. Network requirements
  1. Speed
  2. Reliability
  3. Scalability
  4. Fault tolerance
  5. Security
  6. Quality of service
5. Network Design sketch
  1. Title
  2. Owner
  3. Author
  4. Symbols
  5. Key
6. Explore CADE network design tool