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These categories are outlined in this paper with examples of the type of services provided by these categories of applications . Students told us they complete their schoolwork more quickly ; they are less likely to get stymied by material they do n't understand ; their papers and projects are more likely to draw upon up-to-date sources and state-of-the-art knowledge ; and , they are better at juggling their school assignments and extracurricular activities when they use the Internet . The Multi-Tiered Design for the Data Center is the first of these design options and is geared to support a tiered approach to serving HTTP applications . Beyond meeting the basic requirements of nondisruptive software upgrades and redundancy of all critical hardware components , the Cisco MDS 9500 Series software architecture offers an unparalleled level of availability . Switches at this layer operate exclusively as Layer 3 devices . Given the bad blood between TMPW and Forbes , it 's hardly a surprise that the article got published without too much of a look at the real facts . A move to a modular based switch brings with it a range of power supply options that can be used to meet these growth demands . Virtually all use the Internet to do research to help them write papers or complete class work or homework assignments . Allows different people to use the same PC and have different capabilities , so that users only get their assigned privileges no matter how they are logged onto the network-preventing unauthorized access . This mode aims to simplify the deployment and support replication services on all ports available in the fabric , both SSM FC ports and " normal " FC ports . In the 2002 CSI / FBI security survey , respondents noted that approximately 40 to 45 percent of all attacks on their systems occurred from sources residing on the internal network . Traffic from the destination to the source does not necessarily travel across the same physical link , because the switch on the destination side makes an independent decision about link traffic . High density ( 10GE ) and low latency switching are but a few of the key drivers that the network must deliver to make this design successful . These switch and host authentications are performed locally or remotely in each fabric . DirectEmployers , on the other hand , languishes in the niche job board levels of traffic ( its Alexa ranking suggests no more than 25,000 daily visitors ) . This graph can also be saved to the local machine . In the rare event that a supervisor module is reset , complete synchronization between the active and standby supervisors ensures stateful failover with no disruptions to traffic . While each Cisco MDS 9000 Family management feature or service can easily be categorized according to the definitions above , Cisco provides tools for a subset of the categories mentioned above . No communication is possible between devices in different VSANs except where explicitly allowed through the use of Inter-VSAN Routing . DirectEmployers could easily be a positive supplement to the offerings from other sources . The Cisco Catalyst 4500 Series , with more than 50 million ports deployed , is the most widely deployed modular platform in the industry , offering high-performance and high-density switching , A critical element in the success of this series has been its centralized architecture , which delivers flexibility , high availability , deployment and operational simplicity , and a secure feature-rich switching solution designed with investment protection in mind . These Wizards and Smartports can save hours of time for network administrators , eliminate human errors , and ensure that the configuration of the switch is optimized for these applications . In an economy where the average age is 60 , young employees will have no alternative but to attempt to maximize the middle of their earning years .