Which two of these are character

第1题：

第2题：

By default, which character indicates the UNIX shell prompt?（）

• A、#
• B、>
• C、$
• D、%

第3题：

第4题：

Which two tasks can you perform using only the TO_CHAR function? （）

• A、convert 10 to 'TEN'
• B、convert '10' to 10
• C、convert 10 to '10'
• D、convert 'TEN' to 10
• E、convert a date to a character expression
• F、convert a character expression to a date

第5题：

When a database administrator chooses the dimensions for an MDC table, which two characteristics should beconsidered?（）

• A、the query transaction rate 
• B、numeric data versus character data  
• C、extent size  
• D、the cardinality of the candidate columns  
• E、prefetch size 

第6题：

Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）

• A、 A must contain all of the characters defined in B
• B、 A must be Unicode
• C、 The encoded values in A must match the encoded values in B for all characters defined in B 
• D、 A must be a multibyte character set
• E、 The encoded values in A must match the encoded values in B for all numeric and alphabetic character

第7题：

Which two are character manipulation functions? （）

• A、TRIM
• B、REPLACE
• C、TRUNC
• D、TO_DATE
• E、MOD
• F、CASE

第8题：

第9题：

In a design situation, there are multiple character sets that can properly encode your data. Which three should influence your choice of character set?（）

• A、Syntax when writing queries involving JOINS
• B、Memory usage when working with the data 
• C、Character set mapping index hash size
• D、Disk usage when storing data

第10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.