Excessive internet use
-
Internet addiction is one of the fast-growing addictive behaviors and is a significant public health problem affecting a large number of people worldwide. Excessive use of the internet among university students increases their risk of internet addiction and related negative consequences.
8p vigeorgia2711 30-11-2020 32 2 Download
-
The Internet may serve as a suitable environment for discriminated adolescents as they may consider the online space as the place where they have possibility to build social ties they are missing in their offline life or manage their self-presentation.
7p vimoscow2711 28-08-2020 9 1 Download
-
When the need arises to protect selected user workstations from intrusion and virus epidemics, the administrator usually has to visit each computer to manually install and configure its firewall to comply with corporate security policies. Practically always, the same settings and tools are used with each workstation. In complex distributed networks this requires an administrator to spend a lot of time duplicating the same sets of operations multiple times. Moreover, the administrator must manually reapply all modifications made by each individual user.
8p khongmuonnghe 04-01-2013 46 4 Download
-
The Internet has brought about many changes in the way organizations and individuals conduct business, and it would be difficult to operate effectively without the added efficiency and communications brought about by the Internet. At the same time, the Internet has brought about problems as the result of intruder attacks, both manual and automated, which can cost many organizations excessive amounts of money in damages and lost efficiency.
199p cao_can 02-01-2013 74 8 Download
-
Both shaping and policing mechanisms are used in a network to control the rate at which traffic is admitted into the network. Both mechanisms use classification, so they can differentiate traffic. They also use metering to measure the rate of traffic and compare it to the configured shaping or policing polic y. The difference between shaping and policing can be described in terms of their rate-limiting implementation: n Shaping meters the traffic rate and delays excessive traffic so that it stays within the desired rate limit.
1p trungha 28-08-2009 128 18 Download
-
Step 1 Use the show interfaces ethernet EXEC command to determine the status of the router Ethernet interfaces. The presence of many cyclicredundancy- check (CRC) errors but not many collisions is an indication of excessive noise. Step 2 Check cables to determine whether any are damaged. Step 3 Look for badly spaced taps causing reflections. Step 4 If you are using 100BASE-TX, make sure you are using Category 5 cabling and not another type, such as Category 3.
1p laquang 28-08-2009 96 3 Download
-
The SFET supports cross-connect applications in which limited rack space is available. The SFET can be used as a demarcation or interface point between service providers and businesses/campuses, or as an interface point between outside plant (OSP) and intrafacility fiber cable (IFC). The cross-connect capability allows service providers to turn up new services on demand. The SFET has 32" (81.28 cm) of vertical rack space and is designed to accommodate fiber connectors, splicing and fiber management panels....
8p thuyvan 13-08-2009 79 4 Download