which technology is recommended to provide the underlying transport?

If a teleworker is required to access the branch office via a secure IPSEC VPN connection, which
technology is recommended to provide the underlying transport?

A.
ISDN

B.
Metro Ethernet

C.
Frame Relay

D.
ADSL

E.
ATM

Explanation:

Enterprise Teleworker Design
Al the remote edges of the network is another branch office known as enterprise teleworkers.
Cisco developed a solution called Cisco Virtual Office Solution, which was designed with the
enterprise teleworker in mind. As organizations continually try to reduce costs and improve
employee productivity, working from home is becoming an increasingly popular option for
businesses and organizations. This approach allows employees to manage their work schedules

more effectively and increase their productivity. This also results in greater job satisfaction and
flexibility in the work schedules. The work-from-homo teleworker is an extension of the enterprise
and serves as the basis for the enterprise teleworker solution.
Hnterprisc teleworkers need to be differentiated from the occasional remote worker. The full-time
enterprise teleworker has more extensive application access and requirements than the
occasional remote worker. Occasionally, remote users connect to the corporate network at a
hotspot, but generally they do not have the same application demands of an enterprise teleworker.
Generally, enterprise teleworkers connect to a local ISP through a cable or DSL connection in their
residence.
The ClSGO Virtual Office Solution for the Hnterprisc Teleworker is implemented using the Cisco
800 series ISRs. Each ISR has integrated switch ports that then connect to the user’s broadband
connection. The solution uses a permanent always-on IPsec VPN tunnel back to the corporate
network. This architecture provides for centralized IT security management, corporate-pushed
security policies, and integrated identity services. In addition, this solution supports the enterprise
teleworker needs through advanced applications such as voice and video. For example, the
enterprise teleworker can take advantage of toll bypass, voicemail, and advanced IP phone
features not available in the PSTN.