This Study Guide is based on the current pool of exam questions for the 640-604 – Switching 3.0 exam. As
such it provides all the information required to pass the Cisco 640-604 exam and is organized around the
specific skills that are tested in that exam. Thus, the information contained in this Study Guide is specific to
the 640-604 exam and does not represent a complete reference work on the subject of Building Cisco
Multilayer Switched Networks.
In recent years, great advancements have been made in understanding the mechanisms of the functioning
of the human brain. Technological developments such as functional magnetic resonance
imaging (fMRI), positron emission tomography (PET), and magnetoencephalography (MEG) have
made possible the mapping of the images of cerebral activity from hemodynamic, metabolic or electromagnetic
Carbon Nanotubes and Nanodevices Carbon nanotubes, discovered in 1991, are molecular structures which consist of graphene cylinders closed at either end with caps containing pentagonal rings. Carbon nanotubes are produced by vaporizing carbon graphite with an electric arc under an inert atmosphere. The carbon molecules organize a perfect network of hexagonal graphite rolled up onto itself to form a hollow tube. Buckytubes are extremely strong and flexible and can be single- or multi-walled.
Trend Micro has taken the multilayered security approach to the next level of
sophistication with its Trend Micro Threat Management Services network security
Threat Management Services provides an additional security layer that greatly
strengthens an organization's security infrastructure by monitoring the network for
active infections that have successfully infiltrated. Once the threat discovery occurs,
in real time, the network overwatch layer intercepts the attack and performs
automated containment and remediation.