In which four clauses can a subquery be used?()
第1题:
Cisco Express Forwarding has been enabled on router TK1. With CEF, prefixes that require exception processing can be cached with one of which four special adjacencies? ()
第2题:
Which three statements are true regarding subqueries?()
第3题:
Which four types of objects can be thrown using the throw statement?()
第4题:
Which two statements are true about WHERE and HAVING clauses? ()
第5题:
Which two statements are true regarding the USING and ON clauses in table joins?()
第6题:
Has-a relationships should never be encapsulated.
Has-a relationships should be implemented using inheritance.
Has-a relationships can be implemented using instance variables.
Is-a relationships can be implemented using the extends keyword.
Is-a relationships can be implemented using the implements keyword.
An array or a collection can be used to implement a one-to-many has-a relationship.
第7题:
第8题:
One, two, three or four processors
One, two, or three processors
One, three, or four processors
One, two or four processors
第9题:
in the INTO clause of an INSERT statement
in the FROM clause of a SELECT statement
in the GROUP BY clause of a SELECT statement
in the WHERE clause of a SELECT statement
in the SET clause of an UPDATE statement
in the VALUES clause of an INSERT statement
第10题:
Error
Event
Object
Exception
Throwable
Runtime Exception
第11题:
A WHERE clause can be used to restrict both rows and groups.
A WHERE clause can be used to restrict rows only.
A HAVING clause can be used to restrict both rows and groups.
A HAVING clause can be used to restrict groups only.
A WHERE clause CANNOT be used in a query of the query uses a HAVING clause.
A HAVING clause CANNOT be used in subqueries.
第12题:
Error
Event
Object
Exception
Throwable
RuntimeException
第13题:
Which four are attributes of single row functions? ()
第14题:
A recently ordered server came standard with one 3.0GHz processor. It is capable of handling fourtotal processors. Which of the following processor combinations can be used in this server?()
第15题:
Which four types of object can be thrown using the throw statement?()
第16题:
Which three statements are true regarding single-row functions?()
第17题:
Both USING and ON clauses can be used for equijoins and nonequijoins
Amaximum of one pair of columns can be joined between two tables using the ON clause
The ON clause can be used to join tables on columns that have different names but compatible data types
The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause
第18题:
They can accept only one argument.
They can be nested up to only two levels.
They can return multiple values of more than one data type.
They can be used in SELECT, WHERE, and ORDER BY clauses.
They can modify the data type of the argument that is referenced.
They can accept a column name, expression, variable name, or a user-supplied constant as arguments.
第19题:
name
best-effort
burst
rate
host control
第20题:
第21题:
Kick
Drop
Forward
Null
Discard
Glean
Express
第22题:
Error
Event
Object
Throwable
Exception
RuntimeException
第23题:
cannot be nested
manipulate data items
act on each row returned
return one result per row
accept only one argument and return only one value
accept arguments which can be a column or an expression