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Java认证考试

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Which two statements are true about the security-related tags in a valid Java EE deployment descriptor?()

  • A、Every  tag must have at least one  tag.
  • B、A  tag can have many  tags.
  • C、A given  tag can apply to only one  tag.
  • D、A given  tag can contain from zero to many  tags.
  • E、It is possible to construct a valid  tag such that,for a given resource,no user rolescan access that resource.
正确答案:B,E
答案解析:
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