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Which two statements are true regarding the return values of

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Which two statements are true regarding the return values of property written hashCode and equals methods from two instances of the same class？（）
A

If the hashCode values are different， the objects might be equal.

B

If the hashCode values are the same， the object must be equal.

C

If the hashCode values are the same， the objects might be equal.

D

If the hashCode values are different， the objects must be unequal.

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相似问题和答案

第1题：

Which two statements are true regarding the default behavior of the ORDER BY clause? ()

A.Null values are left out of the sort.

B.Character values are displayed from Z to A

C.Date values are displayed with the earliest value first.

D.Null values are displayed last for descending sequences.

E.Numeric values are displayed with the lowest values first.


参考答案：C, E

第2题：

Which two statements are true regarding L2TP? ()(Choose two.)

A. Tunnels are initiated by the LAC

B. Tunnels are initiated by the LNS

C. By default, subscriber authentication occurs on the LNS

D. By default, subscriber authentication occurs on the LAC


参考答案：A, C

第3题：

Evaluate the following command:Which statement is true regarding the above command?()

A. The LOB matically compressed.

B. The LOB values are cached bvalues are autoy default in the buffer cache.

C. The LOB values are automatically stored in encrypted mode.

D. All LOB data that is identical in two or more rows in a LOB column share the same data blocks.


参考答案：D

第4题：

Which of the following statements are true？（） 

  • A、 The equals（） method determines if reference values refer to the same object.
  • B、 The == operator determines if the contents and type of two separate objects match.
  • C、 The equals（） method returns true only when the contents of two objects match.
  • D、 The class File overrides equals（） to return true if the contents and type of two separate objects        match.

正确答案:A,D

第5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 

正确答案:D

第6题：

Which two statements are true about precedence values in policy?() (Choose two.)

A. 1 is the default precedence.

B. A lower number is preferred.

C. A higher number is preferred.

D. 100 is the default precedence.


参考答案：B, D

第7题：

Which two statements are true regarding route preference?()

A. Lower preference values are more preferred than higher preference values.

B. You can modify the default preference values for any of the routing information sources.

C. By default, a static route is more preferred than a RIP route.

D. A static route is always preferred over a direct route.


参考答案：A, C

第8题：

Which two statements are true regarding the starting of the database instance using the following command?()SQL>STARTUP UPGRADE

A. It enables all system triggers.

B. It allows only SYSDBA connections.

C. It ensures that all job queues remain active during the upgrade process.

D. It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.


参考答案：B, D

第9题：

Which two statements are true regarding the return values of property written hashCode and equals methods from two instances of the same class？（）

  • A、 If the hashCode values are different， the objects might be equal.
  • B、 If the hashCode values are the same， the object must be equal.
  • C、 If the hashCode values are the same， the objects might be equal.
  • D、 If the hashCode values are different， the objects must be unequal.

正确答案:C,D

第10题：

Which two statements are true regarding high-availability chassis clustering？（）

  • A、A chassis cluster consists of two devices.
  • B、A chassis cluster consists of two or more devices.
  • C、Devices participating in a chassis cluster can be different models.
  • D、Devices participating in a chassis cluster must be the same models

正确答案:A,D

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