Computer Networks

1. Network Applications and Services
   1. Email Services
      1. Protocols and Standards
         1. Simple Mail Transfer Protocol (SMTP)
         2. Post Office Protocol (POP3)
         3. Internet Message Access Protocol (IMAP)
      2. Email Clients and Servers
         1. Functionality and Features
         2. Security Considerations
      3. Spam Filtering and Management
         1. Techniques and Technologies
         2. User-configurable Filters
      4. Email Encryption
         1. Importance of Encryption
         2. Encryption Standards and Technologies
   2. Web Services
      1. World Wide Web
         1. Web Browsers and Servers
         2. Hypertext Markup Language (HTML) and Web Technologies
      2. Web Development Technologies
         1. Scripting Languages (JavaScript, PHP)
         2. Content Management Systems (CMS)
      3. Web Protocols
         1. HTTP and HTTPS
         2. WebSocket for Full-Duplex Communication
      4. Web Security
         1. Secure Sockets Layer/Transport Layer Security (SSL/TLS)
         2. Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF)
      5. Web Hosting Services
         1. Shared, Dedicated, and Cloud Hosting
   3. File Sharing
      1. File Transfer Protocol (FTP) and Secure FTP (SFTP)
         1. Overview and Use Cases
         2. Configuration and Security Considerations
      2. Peer-to-Peer File Sharing
         1. Applications and Platforms
         2. Legal and Ethical Issues
      3. Cloud Storage Solutions
         1. Features and Providers
         2. Data Synchronization and Collaboration
      4. Network Attached Storage (NAS)
         1. Use in Homes and Enterprises
         2. Integration with Other Network Services
   4. Voice over IP (VoIP)
      1. VoIP Protocols
         1. Session Initiation Protocol (SIP)
         2. H.323 Protocol Suite
      2. VoIP Systems and Hardware
         1. Software Applications and IP Phones
         2. VoIP Gateways
      3. Advantages and Limitations
         1. Cost Efficiency
         2. Quality of Service (QoS) Management
      4. Security Issues in VoIP
         1. Eavesdropping and VoIP Phishing
         2. Secure VoIP Solutions
   5. Video Conferencing
      1. Video Conferencing Platforms
         1. Popular Software Solutions
         2. Features and Capabilities
      2. Underlying Technologies
         1. Real-Time Transport Protocol (RTP)
         2. Video Compression Standards (H.264, VP9)
      3. Hardware Requirements
         1. Cameras, Microphones, and Display Systems
         2. Network Considerations for Bandwidth
      4. Applications in Various Sectors
         1. Education, Healthcare, and Business
      5. Challenges in Video Conferencing
         1. Latency and Bandwidth Management
         2. Security and Privacy Issues
   6. Messaging and Collaboration Tools
      1. Instant Messaging Protocols
         1. Extensible Messaging and Presence Protocol (XMPP)
         2. Proprietary Protocols (Slack, Microsoft Teams)
      2. Collaborative Platforms
         1. Document Sharing and Real-Time Editing
         2. Project Management Features
      3. Security Features in Collaboration Tools
         1. Data Protection and Encryption Options
      4. Integration with Other Network Services
         1. APIs and Unified Communication Platforms
   7. Streaming Services
      1. Audio and Video Streaming Technologies
         1. Over-the-Top (OTT) Media Services
         2. Streaming Protocols (RTMP, HLS)
      2. Content Delivery Networks (CDNs)
         1. Importance and Functionality
         2. Leading CDN Providers
      3. Modern Trends in Streaming
         1. On-Demand vs. Live Streaming
         2. Impact of 5G on Streaming Quality
      4. Challenges in Streaming Services
         1. Bandwidth Requirements and Optimization
         2. Coping with Latency and Buffering
   8. Cloud-based Applications
      1. Infrastructure as a Service (IaaS)
         1. Virtualization and Server Management
      2. Platform as a Service (PaaS)
         1. Development Environment Provision
      3. Software as a Service (SaaS)
         1. User Access and Application Delivery
   9. Network Management and Monitoring Tools as a Service
      1. Remote Network Management Solutions
         1. Features and Providers
      2. Network Performance Monitoring
         1. Key Metrics and Real-time Analytics
      3. Security Management Tools
         1. Threat Detection and Response Services