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Which keyword can protect a clas

题目

Which keyword can protect a class in a package from accessibility by the classes outside the package（）。

  • A、private
  • B、protected
  • C、final
  • D、don’t use any keyword at all （make it default）
参考答案和解析
正确答案:D
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相似问题和答案

第1题：

Keyword and blacklist filtering would be handled at which level in a network?()

A. Layer 2 managed switch

B. DHCP server

C. Hardware firewall

D. Bridge


参考答案：C

第2题：

（）are the three different coatings which can protect metal from corrosion.

  • A、Cement wash, bitumen and paint
  • B、Metal primers, undercoats and topcoats
  • C、Varnishes, heat-resistant paints and anti-fouling paints
  • D、Cement wash, primer and undercoat

正确答案:A

第3题：

Volatile:

a) What does the keyword volatile mean? Give an example

b) Can a parameter be both const and volatile? Give an example

c) Can a pointer be volatile? Give an example


正确答案：
 

第4题：

Which smb.conf configuration keyword determines the hostname resolution order？（）

  • A、 use ads
  • B、 name resolve order
  • C、 use nsswitch.conf
  • D、 use resolv.conf

正确答案:B

第5题：

Which two statements are true about the Cisco Classic （CBAC） IOS Firewall set？（）

  • A、It can be used to block bulk encryption attacks
  • B、It can be used to protect against denial of service attacks
  • C、Traffic originating from the router is considered trusted， so it is not inspected
  • D、Based upon the custom firewall rules， an ACL entry is statically created and added to theexisting ACL permanently
  • E、Temporary ACL entries that allow selected traffic to pass are created and persist for theduration of the communication session

正确答案:B,E

第6题：

Which statements concerning the switch construct are true？（）  

  • A、All switch statements must have a default label.
  • B、There must be exactly one label for each code segment in a switch statement.
  • C、The keyword continue can never occur within the body of a switch statement.
  • D、No case label may follow a default label within a single switch statement.
  • E、A character literal can be used as a value for a case label.

正确答案:E

第7题：

Which Cisco product family can simultaneously implement firewall, VPN, content security, network access control, virtualization, anD content filtering?（）

  • A、catalyst switches
  • B、adaptive security appliances
  • C、intrusion prevention systems
  • D、protect link gateway

正确答案:B

第8题：

Which command returns a list of commands in which a given keyword is used throughout the Junos hierarchies?()

A. help topic

B. help reference

C. help apropos

D. help tip


参考答案：C

第9题：

Which keyword is used with the show ip bgp neighbors [keyword] command to display all routes that are received and accepted from a neighbor?（）

  • A、paths
  • B、accepted-routes
  • C、advertised-routes
  • D、routes

正确答案:D

第10题：

Which four are true？（）

  • A、 Has-a relationships should never be encapsulated.
  • B、 Has-a relationships should be implemented using inheritance.
  • C、 Has-a relationships can be implemented using instance variables.
  • D、 Is-a relationships can be implemented using the extends keyword.
  • E、 Is-a relationships can be implemented using the implements keyword.
  • F、 An array or a collection can be used to implement a one-to-many has-a relationship.
  • G、 The relationship between Movie and Actress is an example of an is-a relationship.

正确答案:C,D,E,F

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