Which wavelength of optical signals can be amplified?

What network management system can monitor and control video headend equipment?

Which method is used to increase the bandwidth that is available in the upstream signal
path to each subscriber?

What is the modulation format used in Digital Video Broadcast-S?

In general, which technique is less expensive when automatic protection switching is
required to improve reliability in an optical link between a headend and a hub?

What are the two primary advantages of optical transmission at 1550 nm? (Choose two.)

When 3 Cisco gain-flattened ED FA is operated in the “constant gain’ mode, it has which
one of these characteristics?

When a high-power optical signal passes through a fiber, the photons can cause a “ringingof the crystal lattices within the glass fiber core. This ringing creates acoustic phonons,
which in turn interact with other photons of light. The result is an increase in noise in the
received RF signal. What is this phenomenon called?

If a customer requests redundant optical links between a hub and the nodes which solution
is possible using current Cisco products?

What is meant by the expression ‘amplifier cascade”?