CCNA 4 Chapter 6

  1. What are two characteristics of a PPPoE configuration on a Cisco customer router? (Choose two.)

    • The PPP configuration is on the dialer interface.
    • An MTU size of 1492 bytes is configured on the Ethernet interface.
    • The Ethernet interface does not have an IP address.
    • The customer router CHAP username and password are independent of what is configured on the ISP router.
    • The dialer pool command is applied to the Ethernet interface to link it to the dialer interface.
  2. Fill in the blank.

    DOCSIS specifies the MAC sub-layer as a Layer 2 requirement that defines either a deterministic access method, TDMA, or S-CDMA.

  3. How is voice traffic affected when the customer uses ADSL technology?

    • No special equipment is needed to separate voice and data signals.
    • Voice traffic is interrupted if the ADSL service fails.
    • ADSL signals can distort voice transmissions.
    • Voice signals are on a separate wire pair from ADSL signals.
  4. What functionality is required on routers to provide remote workers with VoIP and videoconferencing capabilities?

    • IPsec
    • QoS
    • VPN
    • PPPoE
  5. Which networking technology will ensure reliable and secure remote access when a teleworker connects to a corporate network?

    • an encrypted VPN tunnel
    • routers with QoS capability
    • a VoIP and videoconferencing capable connection
    • broadband (cable or DSL) access to the corporate network
  6. In which layer of the TCP/IP protocol model does IPsec apply security to network data?

    • application
    • transport
    • internet
    • network access
  7. What are two Layer 2 WAN technologies that can provide secure remote connections between corporate branch offices? (Choose two.)

    • LTE
    • Frame Relay
    • leased lines
    • QoS
    • IPsec
  8. Which two network components does a teleworker require to connect remotely and securely from home to the corporate network? (Choose two.)

    • VPN client software or VPN-enabled router
    • multifunction security appliance
    • broadband Internet connection
    • VPN server or concentrator
    • authentication server
  9. Which two OSI Layer 1 specifications does DOCSIS define for a cable Internet connection? (Choose two.)

    • a deterministic media access method
    • channel bandwidth
    • modulation technique
    • VPN tunneling requirements
    • the separation of the voice and data transmissions
  10. Which cable network communication technology is secure, extremely resistant to noise, and employs spread-spectrum technology?

    • FDMA
    • CDMA
    • TDMA
    • S-CDMA
  11. Which technology provides a secure connection between a SOHO and the headquarters office?

    • VPN
    • WiMax
    • QoS
    • PPPoE
  12. Which standard specifies the channel frequencies and the deterministic access method of cable networks?

    • DOCSIS
    • LTE
    • WiMAX
    • 802.16
  13. What advantage does DSL have compared to cable technology?

    • DSL upload and download speeds are always the same.
    • DSL is faster.
    • DSL has no distance limitations.
    • DSL is not a shared medium.
  14. Which medium is used for delivering data via DSL technology through PSTN?

    • fiber
    • copper
    • radio frequency
    • wireless
  15. Which DSL technology provides higher downstream bandwidth to the user than upstream bandwidth?

    • ADSL
    • SDSL
    • CDMA
    • TDMA
  16. Which broadband wireless technology is based on the 802.11 standard?

    • municipal Wi-Fi
    • WiMAX
    • CDMA
    • UMTS
  17. Which type of long distance telecommunication technology provides point-to-point connections and cellular access?

    • WiMax
    • municipal Wi-Fi
    • satellite
    • mobile broadband
  18. What are two disadvantages of employing teleworkers in an organization? (Choose two.)

    • increased usage of sick or vacation days
    • increased difficulty of tracking task progress
    • slower customer service response times
    • the need to implement a new management style
    • increase in office expenses
  19. A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

    • satellite
    • DSL
    • WiMax
    • cable
  20. Which broadband technology would be best for a user that needs remote access when traveling in mountains and at sea?

    • Wi-Fi Mesh
    • mobile broadband
    • WiMax
    • satellite
  21. Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492?

    • to enable CHAP authentication
    • to reduce congestion on the DSL link
    • to accommodate the PPPoE headers
    • to establish a secure tunnel with less overhead
  22. Fill in the blank. Use only an acronym.
    PPPoE creates a PPP tunnel through the DSL connection for the purpose of sending PPP frames.

  23. Match each type of broadband wireless technology with the correct description. (Not all options are used.)CCNA4_Ch6_001

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