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CCNA Training,
MCSE Training, A+ Certification, MCSA, CCNP, Network+,
Security+, CISSP, MCSD, CCSP, |
MCSE CCNA CCNP boot camp, #1
Bootcamp Training Institute in UK, USA
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MCSE Guide
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MCSE : Security Specialist
GET
CERTIFIED IN JUST 18 DAYS - 2003 PATH
Our MCSE 2003: Security+ Program:
- Allows you to achieve your certifications in a fraction of the
time of 'traditional training' while delivering industry-leading
exam passing percentages
- Helps students grasp complex technical concepts more easily by
identifying and catering to individual student learning styles
through a mixed visual, auditory and kinesthetic-tactual delivery
system
- Enhances retention by employing accelerated learning techniques
focused on committing information to long-term memory
A bridge is a device that passes data packets between multiple
network segments that use the same communications protocol. A
bridge passes one signal at a time. If a packet is destined for
a computer within the sender’s own network segment, the bridge
retains the packet within that segment. If the packet is
destined for another segment, it passes the packet to that
segment.
MAC Addresses
As traffic passes through the bridge, information about the
sending computers’ MAC addresses is stored in the bridge’s
memory. The bridge uses this information to build a table based
on these addresses. As more data is sent, the bridge develops a
bridging table that identifies each computer and its location on
network segments. When the bridge receives a packet, the source
address is compared to the source address listed in the
table. If the source address is not present in the table, it is
added to the table. The bridge then compares the destination
address with the destination address listed in the table. If a
bridge recognizes the location of the destination address, it
forwards the packet to this address. If it does not recognize
the destination address, it forwards the packet to all segments.
Use a bridge to:
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Expand the length of a segment.
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Provide for an increased number of computers on the network.
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Reduce traffic bottlenecks resulting from an excessive
number of attached computers.
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Split an overloaded network into two separate networks,
thereby reducing the amount of traffic on each segment and
making each network more efficient.
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Link dissimilar physical cables, such as twisted-pair and
coaxial Ethernet cables.
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