Ecotourism Essay Example | Topics and Well Written Essays - 500 words

Ecotourism - Essay Example Both cultural and natural resources are affected by the pollution. Water supply, coral reefs heritage sites, and beaches are affected through overuse. Littering, traffic emissions, increased noise, and sewerage production are some of the disadvantages that come with high tourism activities. Tourists have, in recent times, become jaded with destinations which they have been traditionally visiting over the years, and the current trend is visiting the rarely visited destinations which they feel are exciting. These places include; the Antarctica, Easter Islands, Galapagos Island, the Siberian Tundra, the Borneo forest, Papua New Guinea and the Amazon Rainforest. These destinations offer the best sites for ecotourism and are big sources of income to the revenue authorities of the countries they are found in. However, the carbon emissions that occur in the process of getting access to these areas and the infrastructure required to cater for tourists impacts natural surroundings. In the Similan Islands and Great Barrier Reef, divers try by all means to be careful not to damage the natural setting. They however take too many learners to the important aquatic resources. The learners disturb the natural resources by damaging the corals and polluting the natural habitats. Tourists in National Parks in Africa use jeeps. In many instances, occupants of these jeeps litter the parks, which may lead to poisoning and deterioration of the park’s natural environment and disturbs the animals’ natural feeding patterns. Despite the money earned from tour charges in such parks, the disadvantage comes about when such pollution leads to reduced numbers of game animals due to effects of environmental deterioration that force animals to move away. Tourism also brings income when beaches are visited. There are, however, not enough resources to cater for the needs of all the visitors. In such cases, refuse disposal and

Computer Network and Management Case Study Example | Topics and Well Written Essays - 7000 words

Computer Network and Management - Case Study Example When web cache receives the request, it first examines the cache’s inventory of stored objects to verify the existence of the requested web content. If the desired object is found, web cache determines the ‘freshness’ of the stored object by examining the object’s creation date, storage date, expiration date, and client and server preferences. If the stored object is found to be valid and up-to-date (fresh), then it is retrieved from the cache’s object store and sent as an HTTP response to the client, hence, saving time and bandwidth (Hofmann & Beaumont 2005). In case if the requested web object is not found, then the web cache transforms and forward the client request to the origin server, receives the response from the origin server, and forwards the response to the client. After sending the response to the client, web cache decides whether or not to store a copy of the object into its object store. This decision is based on (i) replacement rules, and (ii) dynamic object rules (Hofmann & Beaumont 2005). Web cache has finite capacity and therefore, once the cache is full, it is important to decide whether or not to store the current web object after removing and replacing some another stored object. There are several ways to select the object to be removed and replaced; some popular strategies listed by Hofmann & Beaumont (2005) are: Web cache uses dynamic object rules to find the approximate future value of the object through examining its characteristics in order to determine whether or not the object is valuable enough to be stored in the object store. Dynamic web content, such as stock quotes, news headlines, and weather reports changes very frequently and therefore, their value is dropped very rapidly. Personal information, such as family pictures, journals, and travel plans has a very low future value as it attracts only a few numbers of clients. Likewise, private