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A.Forward DNS lookup
B.Reverse DNS lookup
C.RARP
D.Nslookup
答案
更多“How are servers able to conduct a simple authentication check using DNS？（)”相关的问题
第1题
－How _________ will you be able to finish the painting？
－In a couple of hours.
A．soon
B．often
C．long
D．fast
第2题
第3题
With a brain road map．we will be able to
A.know how particular ceHs work
B.store detailed images in our brain
C.find out the number of brain cells
D.operate on patients with brain disease
第4题
(76)
A．for
B．by
C．with
D．in
第5题
W: Yes, Sir. That's an out-of-town personal check. We wouldn't be able to cash it for you until the proceeds are collected from the paying bank.
Q: How will the bank deal with the man's check？
(18)
A．The bank will cash the check immediately.
B．The bank will issue a new bank account and deposit the money for him.
C．The bank will cash it for him until the proceeds are collected from the paying bank.
D．The bank will endorse the check before payment.
第6题
Most problems between teenagers and their parents yield best to (导致) joint planning and decision making. Within any particular family【25】are avoided and problems are solved when all of the persons take【26】in the situation,【27】in working it out.【28】parents and young people learn how to get【29】well with each other and develop skills in understanding and【30】understood, even the most difficult problems are relieved.
(36)
A．free
B．likely
C．able
D．curious
第7题
第8题
How can we get rid of garbage (垃圾) ？ Do we have enough energy sources to meet our future energy needs？
These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the same time it can save the land to hold garbage.
For a long time, people buried garbage or dumped (倾倒) it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas, but they are chemically similar to these fossil(化石) fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source.
Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.
Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.
What two problems can man solve by burning garbage？
A．The shortage of energy and air pollution.
B．The shortage of energy and the land to hold garbage.
C．Air pollution and the shortage of fossil fuel.
D．Air pollution and the shortage of land to hold garbage.
第9题
A.Routers
B.E-mail servers
C.DNS servers
D.Databases
第10题
D
This is not a diet (减肥食谱) or a hard ~exercise program. Nobody can stick to those for long. Instead, it's a simple way to make weight loss a natural part of the life you already live. And guess what？ It's fun! You don't have to give up the foods you love or do regular exercises. It's about balancing calories(平衡卡路里) in tiny ways that add up to big benefits (好处). You just use some tricks the "naturally thin" people do. Pick the ones you like, stick with them, and you'll lose weight and be strong!
Talk it UP Every time you pick Up the phone, stand up and walk around. Heavy people sit on average two and h half hours more every day than thin people, according to astudy.
Get face time We use e-mailso much that we've forgotten what our colleagues look like.
Pick a colleague or two who sit farthest from you: and deliver 10 of those daily messages in person. And go out of your way: go to a bathroom ora copy machine on another floor and take the stairs, of course.
Think about your drink Consider beer or wine instead of a frozen drink: A glass of regular beer has 140 calories and a serving of wine has 126 calories, while a strawberry daiquiri has about 300 and a margarita 340.
Reduce a total of 100 calories each day and you'll be able to lose about 10 pounds in a year. This is really not difficult to do.
47. What is mainly talked about in the passage？
A. How to do exercises daily.
B. How to lose weight easily.
C. How to work comfortably.
D: How to eat and drink regularly.
第11题
Ⅲ. Cloze (30 points)
Directions: For each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet.
Times have changed and the ideas of the young and the old about the same thing are often ill contra diction. For example, parents and teenagers often disagree about the amount of freedom and responsibility that young people (21) to have. The teenager is more independent and often wants to be (22) to choose his own friends, select his own courses in school, plan for his own vocational (23) , and earn and spend his own money, and generally (24) his own life in a more independent (25) than many parents are able to (26) .
Most problems (27) teenagers and their parents yield to (导致) (28) planning and decision making. Within ally particular family, (29) are avoided and problems are solved when all of the persons take (30) in the situation, and (31) in working it out. (32) parents and young people learn how to get (33) well with each other and develop skills in understanding and (34) understood, even (35) most difficult problems are relieved and a situation might appear that teenagers and their parents can some times see eye to eye.
21. A. is
B. should
C. will
D. are
