TLE 3rd Quarter Monthly exam

• Peer-to-Peer Network:

  • Connected directly to each other
  • Equivalent capabilities and responsibilities
  • Has no central point
  • Allows certain files to be shared
  • Common in small offices
• Client/Server Network:

  • Requests information
  • Maintained by network administration
  • Data stored on a centralized file server
  • Shared printers are managed
  • Access requires proper permission, authorized username, and password
• Administration:

  • Implements data backup and security measures
  • Controls user access
• Network Security:

  • Failure to implement can affect users, computers, and the general public
  • Helps keep data and equipment safe
• Physical: theft, damage, or destruction of equipment
• Data: unauthorized access, corruption, denial of access, or theft of information
• Malicious Threats:

  • Intend to cause damage
• Accidental Threats:

  • Unintentionally damage data
• External Threats:

  • Originate from outside the network
• Unstructured Attacks:

  • Exploit available resources, use passwords and scripts
• Structured Attacks:

  • Use code to breach security
• Virus:

  • Attaches to a small piece of software
  • When run, hides by attaching itself
  • Exceptionally dangerous as it can execute, infect, alter, or destroy
• Worm:

  • Self-replicating, duplicates its code
  • Does not need to attach to other programs
  • Harms the network by consuming resources
• Trojan Horse:

  • Technically a worm
  • Hidden in software, disguised as useful
  • Can reproduce or replicate itself
• Security Procedure:

  • Utilizes a security plan
• Antivirus/Virus Protection Software:

  • Detects, disables, and removes viruses, worms, and Trojans
• Security Policy:

  • Established by many organizations
• Data Encryption:

  • Uses codes and ciphers to prevent unauthorized access
• Port Protection:

  • Ensures every communication using TCP/IP is secure
• Firewall:

  • Acts as a barrier to protect the network from unauthorized access