Essential Networking and Internet Connectivity Concepts

Internet Fundamentals

1. Which definition describes the term Internet?
   A network of networks that connects countries around the world.
2. What type of connection point is a Point of Presence (POP)?
   Between an ISP and a home-based LAN.
3. What is the term for the group of high-speed links that connect ISPs?
   Internet backbone.
4. What device can act as a router, switch, and wireless access point in one package?
   ISR (Integrated Services Router).
5. What are the three characteristics of business-class ISP service?
   • High-speed connections
   • Additional webspace
   • Additional email accounts
6. What is an important characteristic of asymmetric Internet service?
   Upload speeds and download speeds are different.
7. What are the three elements necessary to properly connect to the Internet?
   • An IP address
   • A network connection
   • Access to an Internet Service Provider (ISP)
8. What term describes each router through which a packet travels when moving between source and destination networks?
   Hop.
9. What does the tracert command test?
   The path a packet takes to a destination.
10. What kind of end-user connectivity requires that an ISP has a DSLAM device in their network?
    Digital Subscriber Line (DSL) technology.
11. Why does an ISP require a CMTS device on their network?
    To connect to end users using cable technology.

Cabling and Network Standards

12. Refer to the chart. What type of cabling is shown?
    Fiber.
13. Refer to the chart. What type of cabling is shown?
    UTP (Unshielded Twisted Pair).
14. Which two places are most appropriate to use UTP cabling?
    • In a home office network
    • Inside a school building
15. What does the adherence to cabling standards ensure?
    Reliable data communications.
16. Refer to the chart. What kind of cable is shown?
    Crossover.
17. What connector is used to terminate Ethernet UTP?
    RJ-45.
18. Which two characteristics describe copper patch panels?
    Uses RJ-45 ports and organizes cable terminations.
19. What are two advantages of cable management?
    • Aids in the isolation of cabling problems
    • Protects cables from physical damage
20. What are two common causes of signal degradation when using UTP cabling?
    • Improper termination
    • The use of low-quality cables or connectors
21. What are three commonly followed standards for construction and installation of wiring?
    • Pinouts
    • Cable lengths
    • Types of connectors