Network+ Chapter1 - Intro to Networking

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Network+ Chapter1 - Intro to Networking
2011-04-05 19:13:59
Network Certification exam

Flashcards for the Network + Certification Exam
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  1. Describe a LAN
    A network restricted to a single geographic location. Its purpose is to interconnect workstation computers for the purpose of sharing files and resources. A LAN is typically high speed and cheaper to setup than a WAN.
  2. Describe a WAN
    A WAN is a network that spans more than one geographic location, often connecting separated LANs.
  3. Describe a MAN
    A MAN is confined to a certain geographic area, such as a university campus or city. Almost always bigger than a LAN and usually smaller than or equal to a WAN.
  4. Discribe a WPAN
    WPAN is a wireless personal area network. WPAN refers to the technologies involved in connecting devices in very close proximity to exchange data or resources.
  5. What is the maximum size of Peer to Peer networks vs Client/Server networks?
    • Peer to Peer - max of 10
    • Client/Server - only limited by server size, network hardware and budget. It can have thousands of connected systems.
  6. Compare Administration of Peer to Peer vs Client/Server networks.
    • Peer to Peer - Each individual is responsible
    • Client/Server - A skilled network admin is often required.
  7. Compare Security of Peer to Peer vs Client/Server networks.
    • Peer to Peer - Each individual is responsible
    • Client/Server - Security is managed from a central location but a skilled network admin is often required to correctly configure.
  8. Compare Cost and Implementation of Peer to Peer vs Client/Server networks.
    • Peer to Peer - Minimal startup cost and easy to configure and setup.
    • Client/Server - Requires dedicated equipment and specialized hardware and administration increasing network cost and usually requires skilled staff to setup.
  9. What is a VPN?
    A VPN extends a LAN by establishing a remote connection using a public network such as the internet.
  10. Describe the components of a VPN Connection:
    • A client - the computer that initiates the connection
    • Server - server authenticates connections from the client
    • Access Method - Must be used on an IP based network.
    • Protocols - establish, manage, and secure the data over the VPN connection. (PPTP, L2TP)
  11. Name some Advantages of VPN networking:
    • Reduced costs - using public internet saves money on dedicated lines.
    • Network scalability - Allows an organization to grow its remote client base without having to increase or modify an internet network.
    • Reduced support - Using the internet means organizations don't need to employ support personnel to manage VPN infrastuctures.
    • Simplified - It's easy for a network admin to add remote clients.
  12. Name some Disadvantages of VPN networking:
    • Security - Although security protocols are used, VPN Administrators must understand data security over public networks to ensure that data is not tampered with or stolen.
    • Reliability - Depends on the public network and is not under an organizations direct control.
  13. What is a VLAN?
    A group of connected computers that act as if they are on their own network segments.
  14. Describe some benefits of VLANs:
    • Increased security - with logical or virtual boundaries, network segments can be isolated
    • Increased performance - Reduces broadcast traffic throughout the network freeing up bandwidth
    • Organization - Network users and resources that are linked and communicate frequently can be grouped in a VLAN
    • Simplified administration - The network admin's job is easier when moving users between LAN segments, recabling, setting up new stations and reconfiguring new hubs and routers.
  15. What types of membership options are VLANs based on?
    • Protocol Based - TCP/IP or IPX
    • Port Based
    • MAC Address based