请帮忙给出正确答案和分析,谢谢!
第1题
A.Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.
B.Router C will use ICMP to inform Router B that Host 2 cannot be reached.
C.Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.
D.Router C will send a Destination Unreachable message type.
E.Router C will send a Router Selection message type.
F.Router C will send a Source Quench message type.
第2题
A.Router C will use ICMP to inform Host 1 that Host 2 cannot be reached
B.Router C will use ICMP to inform Router B that Host 2 cannot be reached
C.Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached
D.Router C will send a Destination Unreachable message type
E.Router C will send a Router Selection message type
F.Router C will send a Source Quench message type
第3题
A. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.
B. Router C will use ICMP to inform Router B that Host 2 cannot be reached.
C. Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.
D. Router C will send a Destination Unreachable message type.
E. Router C will send a Router Selection message type.
F. Router C will send a Source Quench message type.
第4题
A. The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled
B. Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up
C. Backup optimization is permanently disabled
D. Backup optimization is temporarily disabled because a redundancy-based retention policy is specified
第5题
A、Language functions as a way of shaping a person's experience.
B、Cultural thought patterns influence language usage and thingking.
C、The categories by which we understand the world are related to the way we organize language.
D、People cannot perceive concepts when they have no word in their language.
第6题
A neutral-news message is a type of message to which the receiver's reaction will be neither positive nor negative. ______
第7题
Which of the following statements is NOT correct?
A.Words and phrases are organized according to syntactic categories.
B.Lexical categories are commonly known as parts of speech.
C.Only major lexical categories are open categories.
D.Both major and minor lexical categories are open categories.
第8题
Definitions can be classified into two large categories, intensional definitions (which try to give the essence of a term) and extensional definitions (which proceed by listing the objects that a term describes).
第9题
Which one of the following categories does the speaker attach great importance to?
A.Material fife.
B.Sports fife.
C.Spiritual life.
D.Working life.
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