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多选题
Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.（）
A
All OSPF networks require the use of multiple areas
B
Multiple OSPF areas must connect to area 0
C
Single area OSPF networks must be configured in area 1
D
Areas can be assigned any number from 0 to 63535
E
Area 0 is called the backbone area
F
Each OSPF area need to be configured with a loopback interface
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更多 “多选题Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.（）AAll OSPF networks require the use of multiple areasBMultiple OSPF areas must connect to area 0CSingle area OSPF networks must be configured in area 1DAreas can be assigned any number from 0 to 63535EArea 0 is called the backbone areaFEach OSPF area need to be configured with a loopback interface” 相关考题
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The amount of fluid displaced per revolution of an axial piston rotary pump is dependent on the angle formed between the cylinder block and valve plateD
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考题
单选题Which statement is true regarding the INTERSECT operator?（）A
It ignores NULL values B
Reversing the order of the intersected tables alters the result C
The names of columns in all SELECT statements must be identical D
The number of columns and data types must be identical for all SELECT statements in the query
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单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A
The VERSIONS BETWEEN clause may be used in DML statements.B
The VERSIONS BETWEEN clause may be used in DDL statements.C
The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D
The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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单选题Which of the following is not true regarding IOS default settings for administrative distance?（）A
EIGRPinternal：90B
OSPFexternal：110C
EIGRPexternal：90D
RIP：120E
OSPFinternal：110
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