CN Chapter 3

Which broadband wireless technology is based on the 802.11 standard?

• municipal Wi-Fi

• WiMAX

• CDMA

• UMTS

What is the approximate distance limitation for providing a satisfactory ADSL service from the central office to a customer?

• 3.39 miles or 5.46 kilometers

• 2.11 miles or 3.39 kilometers

• 6.21 miles or 10 kilometers

• 11.18 miles or 18 kilometers

What is a component of an ADSL connection that is located at the customer site?

• CO

• CPE

• SOHO

• DSLAM

What is the function of the DSLAM in a broadband DSL network?

• multiplexes individual customer DSL connections into a single upstream link

• communicates directly with customer cable modems to provide Internet services to customers

• separates voice from data signals

• separates POTS traffic from ADSL traffic

Which broadband technology would be best for a small office that requires fast upstream connections?

• DSL

• fiber-to-the-home

• cable

• WiMax

What are two WAN connection enhancements that are achieved by implementing PPPoE? (Choose two.)

• Encapsulating Ethernet frames within PPP frames is an efficient use of bandwidth.

• DSL CHAP features are included in PPPoE.

• PPP enables the ISP to assign an IP address to the customer WAN interface.

• An Ethernet link supports a number of data link protocols.

• CHAP enables customer authentication and accounting.

When PPPoE is configured on a customer router, which two commands must have the same value for the configuration to work? (Choose two.)

• dialer pool 2

• interface dialer 2

• ppp chap password 2

• interface gigabitethernet 0/2

• pppoe-client dial-pool-number 2

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

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.

Where is PPPoE configured on a Cisco router?

• on an Ethernet interface

• on the dialer interface

• on a serial interface

• on any physical interface