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【单选题】

Which statement about the ip classless router command is true?（）

A、The ip classless command is enabled by default in recent versions of IOS.

B、The ip classless command should only be enabled when static routing is being used instead of a routing protocol.

C、The ip classless command should be enabled by the network administrator whenever RIPv1 or IGRP is being used.

D、The ip classless command should be enabled by the network administrator whenever OSPF, RIPv2, or EIGRP is being used.

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第3题
[多选题] In which four clauses can a subquery be used?（）

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第4题
[多选题] In which four clauses can a subquery be used? （）

A、in the INTO clause of an INSERT statement  B、in the FROM clause of a SELECT statement  C、in the GROUP BY clause of a SELECT statement  D、in the WHERE clause of a SELECT statement  E、in the SET clause of an UPDATE statement  F、in the VALUES clause of an INSERT statement  

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第5题
[多选题] Which two statements are true about terms in a routing policy?（）

A、A then statement is mandatory in a term  B、If a term does not contain a from statement, all routers match  C、If a term does not contain a from statement, the Junos OS will not commit  D、A then statement is not mandatory in a term  

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第6题
[单选题] Evaluate this SQL statement: In the statement, which capabilities of a SELECT statement are performed?（）

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第7题
[多选题] Which three statements are true about terms in a policy?（）

A、The order of the terms in a policy is irrelevant.  B、The action is specified in a then statement.  C、Terms are optional in a policy.  D、The match condition can be identified with a from statement.  E、A from statement is mandatory in a term.  

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第8题
[多选题] Which two statements are true about terms in a routing policy?（）

A、A routing policy cannot have more than one term.  B、If a term does not contain a from statement, all routes match.  C、If a term does not contain a from statement, the Junos OS will not commit.  D、A then statement is not mandatory in a term.  

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第9题
[多选题] Which three are true?（）

A、A MERGE statement is used to merge the data of one table with data from another.  B、A MERGE statement replaces the data of one table with that of another.  C、A MERGE statement can be used to insert new rows into a table.  D、A MERGE statement can be used to update existing rows in a table.  

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第10题
[多选题] Which three are true? （）

A、A MERGE statement is used to merge the data of one table with data from another.  B、A MERGE statement replaces the data of one table with that of another.  C、A MERGE statement can be used to insert new rows into a table.  D、A MERGE statement can be used to update existing rows in a table.  

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