Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt

... arrangement. An Overview of the OSI Model Paul Simoneau, Global Knowledge Course Director, Network+, CCNA, CTP The OSI Model: Understanding the Seven Layers of Computer Networks Copyright ©2006 ... com- bination of the two. The nature of these stacks is that the lower layers do their work in hardware or firmware (software that runs on specific hardware c...

Ngày tải lên: 24/01/2014, 09:20

... 100, sending Another way of minimizing the impact of the debug command is to buffer the debug messages and show them using the show log command once the debug has been turned off: Router4#configure ... in Router2. The basic rule is that the pinged device should also know how to send the reply back to the source of the ping. Cisco − Understanding the Ping and Tr...

Ngày tải lên: 13/11/2012, 11:22

... allocation does not reflect the composition of the UNFCCC, and does not reserve positions for the most vulnerable. Furthermore, there have been concerns over the eectiveness of the observer role on ... from the Oxford Institute of Energy Studies has pointed out: “Although NGOs have the right to make interventions during the meetings at the discretion of the c...

Ngày tải lên: 19/02/2014, 15:20

... components are the responsibility of the Metro Ethernet service provider and are the subject of the design guides referenced in the introduction of this document. Figure 10 Metro Access Tier The Metro ... branch include the nature of the service provider offering and scalability given the higher data rates now available to the branch with a FastEthernet or Giga...

Ngày tải lên: 21/12/2013, 06:15

... one splitter, the problem is between the central office (CO) and the splitter. However, the electronics at the ends of the PON cannot identify the exact location of the problem. The only way ... address the new challenges to higher profitability from the network. While still maintaining the core value of the ODF, service providers can increase the functio...

Ngày tải lên: 21/12/2013, 07:17

... This is the first in a series of briefs that focus on evaluative research into the use of alternative means of health communication; they include plain language, audiotapes, ... Searches of the medical and education literatures were conducted as part of a Health Literacy Project that is examining the communication needs of patients with limited literacy or other communi...

Ngày tải lên: 14/02/2014, 13:20

... activation of the ERK1 ⁄ 2 pathway [20]. Furthermore, the induction of miR-34a depends on the activation of ERK1 ⁄ 2 in K562 cells [21,22]. We have demonstrated that the activation of MEK ⁄ ERK ... stimulates the production of these miR- NAs and thus represses the expression of their target genes. TGF-b signaling is known to be involved in the epithelial–mesenchymal...

Ngày tải lên: 14/02/2014, 19:20

... using the stack-based method, whereas VT out-performed the stack-based method 23% of the time. In the majority of cases (62%), the two models required the same level of effort. However, all of the ... on the stack when b is processed. (2) A2. Some of the executives also signed letters on behalf of the Clinton program. B2. Nearly all of them praised the pre...

Ngày tải lên: 20/02/2014, 18:20

... central position to one on the extreme periphery of the network. Of note are the means for information receiving for the CGIAR centers and the Natural Resources College. With the exception of the ... individual sections of the DARS, not the DARS as a whole. Therefore, the main focus of the SNA is on interactions with individual DARS sections (listed in Table...

Ngày tải lên: 21/02/2014, 01:20

Ngày tải lên: 23/02/2014, 21:20