Explain public and private IP addressingCompleted 100 XP 2 minutes Devices and hosts that connect directly to the Internet require a public IPv4 address. However, hosts and devices that do not connect directly to the Internet do not require a public IPv4 address....
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例如:如果建立(a,b)顺序的索引,我们的条件只有b=xxx,是匹配不到(a,b)索引的;但是如果查询条件是a = 1 and b = 2或者b=2 and a=1就可以,因为优化器会自动调整a,b的顺序,并不需要严格按照索引的顺序来;再比如a = 1 and b = 2 and c > 3 and d = 4 如果建立(a,b,c,d)顺序的索引,d是用...
The really clever thing about the Internet is that it allows practically every computer on the planet to exchange information. That's a much bigger deal than it sounds. Back in the earlier days of computers, in the 1960s, 1970s, and 1980s, it was rare for computers to be able to ...
“The internet exposes people to slang and other dialects or words that are sometimes specific to a different group of people and their experiences. It’s a glimpse into a different view of the world when we learn other groups’ slang or technical terms.” ...
ExplainoExpo is an Interactive Internet Media Channel working with an objective to deliver best, reliable and authentic information related to eight different verticals. under this umbrella, we have a forte in the following eight domains. ARMED FORCES Indian Armed Forces Overview Entries Written Ex...
it gets all its energy from the incoming radio waves, typically 13.56MHz (per the International Standard ISO 18000). 2) The dipole antenna inside a PCMCIAwireless InternetWi-Fi card. This one works with 2.4GHz radio waves of wavelength 12.5cm, which is why it only needs to be about 6cm ...
Then it was a matter of finding free sounds on the internet. In total I had ~30 sound effects, and mapped out a plan to place them throughout the song. Sam dropped them in, approximately at the intended places, and then for what would be the only time with my fingers personally “wo...
in the past 30 years, the Internet has made a real impact on the way business is conducted worldwide. Its evolution has and continues to be fast, representing a challenge for all the commercial chain. Answer and Explanation: To explain the evolution of...
Public IPv4 addresses, which IANA assigns, must be unique. Usually, your ISP allocates to you one or more public addresses from its address pool. The number of addresses that your ISP allocates to you depends upon how many devices and hosts that you have to connect to the Interne...