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【多项选择题】

What are the characteristic of link state routing protocols?（）

A、A. The exchange of advertisement is triggered by a change in the network.

B、B. All routers exchange routing tables with each other iIn a multipoint network.

C、C. Packets are routed based upon the shortest path to the destination.

D、D. Paths are chosen depending on the cost efficiency factor.

E、E. Every router in an OSPF area is capable of representing the entire network topology.

F、F. Only the designated router in an OSPF area can represent the entire network topology.

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第1题
[单选题] Automatic data conversion will occur if which of the following happens?（）

A、The client and server have different NLS_LANGUAGE settings.  B、The client and server character sets are not the same, and the database character set is not a strict superset of the client character set.  C、The client and server are in different time zones.  D、The client requests automatic data conversion.  E、The AUTO_CONVERT initialization parameter is set to TRUE.  

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第2题
[多选题] Which four statements correctly describe functions that are available in SQL? （）

A、INSTR returns the numeric position of a named character.  B、NVL2 returns the first non-null expression in the expression list.  C、TRUNCATE rounds the column, expression, or value to n decimal places.  D、DECODE translates an expression after comparing it to each search value.  E、TRIM trims the heading or trailing characters (or both) from a character string.  F、NVL compares two expressions and returns null if they are equal, or the first expression if they are not equal.  H、NULLIF compares two expressions and returns null if they are equal, or the first expression if they are not equal.  

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第3题
[多选题] Which four statements correctly describe functions that are available in SQL? （）

A、INSTR returns the numeric position of a named character.  B、NVL2 returns the first non-null expression in the expression list.  C、TRUNCATE rounds the column, expression, or value to n decimal places.  D、DECODE translates an expression after comparing it to each search value.  E、TRIM trims the heading of trailing characters (or both) from a character string.  F、NVL compares two expressions and returns null if they are equal, or the first expression of they are not equal.  H、NULLIF compares twp expressions and returns null if they are equal, or the first expression if they are not equal.  

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第4题
[多选题] Which four statements correctly describe functions that are available in SQL?（）

A、INSTR returns the numeric position of a named character.  B、NVL2 returns the first non-null expression in the expression list.  C、TRUNCATE rounds the column, expression, or value to n decimal places.  D、DECODE translates an expression after comparing it to each search value.  E、TRIM trims the heading of trailing characters (or both) from a character string.  F、NVL compares two expressions and returns null if they are equal, or the first expression of they are not equal.  H、NULLIF compares twp expressions and returns null if they are equal, or the first expression if they are not equal.  

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第5题
[多选题] Which four statements correctly describe functions that are available in SQL? （）

A、INSTR returns the numeric position of a named character.  B、NVL2 returns the first non-null expression in the expression list.  C、TRUNCATE rounds the column, expression, or value to n decimal places.  D、DECODE translates an expression after comparing it to each search value.  E、TRIM trims the heading of trailing characters (or both) from a character string.  F、NVL compares two expressions and returns null if they are equal, or the first expression of they are not equal.  H、NULLIF compares twp expressions and returns null if they are equal, or the first expression if they are not equal.  

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第6题
[] What does the Character Set Scanner command line utility do？（）

A、A.Reports only on any Unicode character conversions required.  B、B.Performs character set conversions to the new specified character set.  C、C.Scans on any character set conversion required， then converts the data.  D、D.Checks for any character definitions that will fail conversion to the new character set.  

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第7题
[] You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a pluggable database (PDB). The characteristics of the non-CDB are as follows: -Version: Oracle Database 12c Releases 1 64-bit -Character set: WE8ISO8859P15 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit The characteristics of the CDB are as follows: -Version: Oracle Database 12c Release 1 64-bit -Character set: AL32UTF8 -O/S: Oracle Linux 6 64-bit Which technique should you use to minimize down time while plugging this non-CDB into the CDB?（） You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a pluggable database (PDB). The characteristics of the non-CDB are as follows: -Version: Oracle Database 12c Releases 1 64-bit -Character set: WE8ISO8859P15 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit The characteristics of the CDB are as follows

A、A. Transportable database  B、B. Transportable tablespace  C、C. Data Pump full export / import  D、D. The DBMS_PDB package  E、E. RMAN  

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第8题
[单选题] You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB). The characteristics of the non-CDB are as follows: -Version: Oracle Database 11g Release 2 (11.2.0.2.0) 64-bit -Character set: AL32UTF8 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit The characteristics of the CDB are as follows: -Version: Oracle Database 12c Release 1 64-bit -Character Set: AL32UTF8 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit Which technique should you use to minimize down time while plugging this non-CDB into the CDB?（）

A、Transportable database  B、Transportable tablespace  C、Data Pump full export/import  D、The DBMS_PDB package  E、RMAN  

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第9题
[] Which two statements are true regarding the default behavior of the ORDER BY clause? （）

A、A.Null values are left out of the sort.  B、B.Character values are displayed from Z to A  C、C.Date values are displayed with the earliest value first.  D、D.Null values are displayed last for descending sequences.  E、E.Numeric values are displayed with the lowest values first.  

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第10题
[单选题] Structural traps are traps（）are formed because of a deformation in the rock layer （）contains the hydrocarbons.

A、that, that  B、what,what  C、what,that  D、that,what  

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