400 Chapter A: Answers to the "Do I Know This Already?" Quizzes and Q&A Sections
13
A branch office must connect to the central site over Frame Relay at 64 kbps. No growth
is expected for the next two years, at which time Frame Relay connectivity for two satellite
sites will be added at 64 kbps. What router platform would you recommend?
The 3600 series router is recommended.
14
The administration is considering supplying routers for all their ISDN dial-up users. The
network administrators are comfortable with the IOS and must implement the dialup for
20 users over the next few months. What equipment would you propose for the central
office and the SOHOs?
800s at the SOHOs and a 3600 at the central office are recommended.
Answers to Chapter 3 "Do I Know This Already?" Quiz
1
Which router is best used as a central site router: 2611, 3640, or 1004?
The 3640 router provides more power than the 2611 or 1004. Therefore, it is the best
choice of the three for a central site router.
2
Which router best serves as a small office or home office (SOHO) router for
telecommuters: 7200, 700, or 7500?
The 700 router is best suited for the role of a SOHO router. The 7200 and 7500 routers are
suited for roles as core routers.
3
Which WAN technology is best suited for providing high-density dial-up access for remote
users?
Primary Rate Interface (PRI) is best suited due to the number of independent access
channels it makes available to users.
4
Which WAN technology is best suited for variable bandwidth (low-speed to high-speed)
deployments that enable the connection of multiple branch offices to a central site?
Frame Relay is typically deployed in a hub and spoke topology and allows for 56-kbps to
45-Mbps connectivity.
5
What does a green LINK LED signify on an Ethernet interface?
A green LINK LED signifies that the connection to the Ethernet network has been
properly established.
6
On a 1600 router, what is the CD LED?
The CD LED is the Carrier Detect indicator. This light signifies that the service provider
signal is being received on the interface.