Ulf wants to ensure that a hacker cannot access his DNS zone files.What is the best ac

tion for his to take？()

A.Filter TCP port 23

B.Configure the firewall to block zone transfers and accept zone transfer requests only from specific hosts

C.Configure all routers to block zone transfers and encrypt zone transfer messages

D.Disable Nslookup

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更多“Ulf wants to ensure that a hac…”相关的问题

第1题

Ulf is a systems administrator.He sees that an attacker from a remote location is send

A.Bandwidth consumption

B.Hijacking of internal user resources

C.Polling

D.Use of an illicit server

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第2题

Why would Ulf refuse to run the command “chmod-Are 777/home/ulf”？（)

A.The command will copy all his files to a public directory

B.The command will allow everyone to read, write and execute all files in his directory

C.The command will create problems when his profile file initialises his user settings

D.The command is known to have security breaches associated with it, and should be avoided

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第3题

It can be really frustrating (使人沮丧的) for an overweight person to go to a gym and

work out with a positive attitude.All one has to do is walk by almost any nice gym and notice all the healthy, sweating, “skinny” members.Sometimes they stare at those of us who are, well, zaftig.It is easy to see the judgment behind their eyes.Who wants to put up with that？

Many people are self-conscious of their bodies and feel isolated when joining workout classes of while exercising, especially if they are larger than most of the others in the group.Now the fitness industry is finally paying attention.Popular gyms are catering (迎合) to overweight and weight conscious customers by dedicating areas where the “skinny” people are not allowed.

There are even gyms or programs that require members to be at least 50 pounds overweight to participate.

Trainers recommend functional fitness as a practical goal, rather than six-pack abs(六块腹肌).They often use text messages to stay in touch with customers.

Often at these specialized gyms, the trainers are overweight themselves, or working on their own weight goals, and this can help those people with anxiety caused by poor body image.The equipment has been designed for use by larger people.Wider seats, more cushioning, no mirrors, and tinted (有色的) windows for privacy, are all important changes.

Hopefully these types of gyms will successfully grow in numbers in the future.The idea is a very simple and potentially popular one.If it helps those of us who are bigger exercise more and improve our fitness level, it's a step in the right direction.

1.The word zaftig in Paragraph 1 is closest in meaning to ().

A.fat

B.healthy

C.friendly

2.We can infer from the first two paragraphs that ().

A.most large gym chains really don't want members to show up frequently

B.overweight people are often frustrated and pushed away by traditional gym industry

C.regular gyms don't accept overweight people to participate in their programs

3.What is the training goal in the gyms catering to overweight members？()

A.To achieve functional fitness.

B.To build six-pack abs.

C.To look like a fitness model.