In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

[Q]: Article: It's hard not to feel cheated and over-charged when you receive unexpected roaming charges while traveling abroad--whether they come from making phone calls or checking e-mails. Jeff Gardner received an $ 11,000 bill from Verizon after spending four days in Jamaica. Before the trip, Mr. Gardner, who runs a fly-fishing business in Grayling, Michigan, said he called Verizon to find out what it would cost to use his cellphone for calls and his wireless card to check e-mails while in Jamaica. He said he was told that calls would be about $ 2 a minute and that there would be no extra charges for data as he was on an unlimited plan. _ . "I don't mind paying a fair amount for fair service, but $11,000 for four days is ridiculous," said Mr. Gardner, who used his phone carefully and economically on the trip. He also tried to check and send e-mails using his wireless card, but quickly gave up after the e-mails didn't go through. Still, his Verizon bill said more than 500,000 kilobytes of data was delivered while he was in Jamaica, an amount Mr. Gardner said is 100 times what he normally uses in a month. As travelers increasingly use smart phones abroad in the same way they do at home--to check e-mails, update Facebook and Twitter and pull up online maps--many are facing costly roaming fees, which providers charge when customers use their phones outside their service area. In fact, roaming charges have gotten so out of hand that the Federal Communications Commission has proposed a plan that would require wireless companies to send their customers a voice or text message when they are approaching their plan's limit, when they have reached that limit and when they are starting to result in roaming fees.
Answer: To find out information about roaming charges.
[A]: Why did Jeff Gardner call Verizon before his trip to Jamaica?

[Q]: Article: Inventor, physicist, surveyor, astronomer, biologist, artist... Robert Hooke was all there and more. Some say he was the greatest experimental scientist of the 17th century. In the course of his work, he cooperated with famous men of science like Isaac Newton, and the great architect, Christopher Wren. Hooke's early education began at home, under the guidance of his father. He entered Westminster School at the age of 13, and from there went to Oxford, where he came in contact with some of the best scientists in England. Hooke impressed them with his skills at designing experiments and inventing instruments. In 1662, at he age of 28, he was named Curator of Experiments at the newly formed Royal Society of London- meaning that he was responsible for demonstrating new experiments at the society's weekly meeting. Hooke accepted the job, even though he knew that the society had no money to pay him! Watching living things through a microscope was one of his favourite pastimes . He invented a compound microscope for this purpose. One day while observing a cork under a microscope, he saw honeycomb-like structures. There were cells -the smallest units of life. In fact, it was Hooke who invented the term "cell" as the boxlike cells of the cork reminded him of the cells of a monastery . Another achievement of Hooke's was his book Micrographia, which introduced the enormous potential of the microscope. It contains fascinating drawings of the thing he saw under the microscope. The book also includes, among other things, ideas on gravity, light and combustion that may have helped scientists like Newton when they were developing their own theories on these phenomena . Hooke made valuable contributions to astronomy too. A crater on the moon is named after him in honour of his services to this branch of science.
Answer: He liked designing experiments.
[A]: Which is the possible reason why Hooke accepted the job as Curator of Experiments?

[Q]: Article: China supports international efforts to secure cyberspace but believes each nation's "Internet sovereignty " must be respected, a top Chinese official said at a cyber security conference on Tuesday. "China, like many other countries, is very concerned about cyber security," said Liu Zhengrong, deputy director general of the Internet Affairs Bureau of the State Council Information Office. "China faces severe cyber security threats," Liu told participants here at the Worldwide Cyber Security Summit, a gathering of government and business leaders from 40 countries hosted by the EastWest Institute think tank. "International cooperation is much needed to safeguard international cyberspace," Liu said. But "Internet sovereignty of each country needs to be respected," the Chinese official added. "Different national and cultural conditions" should be taken into account. Liu declined to answer repeated questions about cyber attacks last year on Google which the Internet giant said originated in China and led to the California company's decision to reroute its searches through Hong Kong. "The Chinese government firmly opposes cyber attacks in any form and Chinese law clearly states that any hackers will be held responsible for their actions," he said. Liu said China itself is a "a major victim of cyber attacks and network viruses" and has laws in place to deal with hackers. "Internet-related crimes (in China) are showing a steady upward trend," Liu said. "We suffer big economic losses from hacking networks and viruses - around $1 billion dollars (6.8 billion yuan) a year." In 2009, Chinese law enforcement authorities investigated about 48,000 cases, a 37 percent increase over 2008, he said. While China has a dynamic Internet population of more than 400 million users and millions of bloggers, there is no "absolute freedom" on the Web, Liu said. "I don't think there is absolute freedom in this world," he said. "When you are speaking via the Internet you must obey laws and respect others' lawful rights." Last Thursday, Wang Chen, minister of the State Council Information Office, said China has been actively promoting a real-name registration system for Internet and cell phone users to better manage Internet information and services. China needs laws that will step up monitoring for "harmful information" and block "overseas hostile forces from infiltrating through the Internet," Wang said. Last week, China tightened its State Secrets law, holding Internet and mobile phone operators responsible for customers who try to leak State secrets. Some 400 government officials, business leaders and cyber security experts are attending the summit, which features three days of discussions on ways to protect the world's digital infrastructure from electronic threats.(427)
Answer: To protect digital infrastructure in the world.
[A]:
What was the top issue of Worldwide Cyber Security Summit?