单选题The auto-complete feature in the JUNOS CLI is triggered by which method?（）A space bar for both command and variable completionB space bar for command completion；tab key for variable completionC space bar for variable completion；tab key for command comp

第1题：

The auto-complete feature in the JUNOS CLI is triggered by which method?（）

• A、space bar for both command and variable completion
• B、space bar for command completion；tab key for variable completion
• C、space bar for variable completion；tab key for command completion
• D、tab key for variable and command completion；space bar for command completion

第2题：

A customer needs to remove an unnecessary, but active paging space called paging00 on an AIX 5L system.  Which of the following procedures should be used to properly remove the paging space with the least amount of disruption?（）

• A、Remove the paging space with the rmps command. 
• B、Disable the paging space with the chps command, swapoff /dev/paging00, and remove the paging00 logical volume with the rmps command. 
• C、Reboot the system and disable the paging space with the rmps command. 
• D、Disable the paging space with the chps command, swapoff /dev/paging00, reboot the system, remove the paging00 logical volume with the rmps command. 

第3题：

Which command will increase the contiguous free space of a file system without having to add additional partitions？（）

• A、chfs
• B、fsck
• C、chlv
• D、defragfs

第4题：

During a password recovery, what is the next step after configuring the system to boot into single-user mode?（）

• A、Reset the root password.
• B、Press the space bar.
• C、Type recovery.
• D、Press the "Enter" key.

第5题：

You issued the following statement：   SQL>ALTER DATABASE ENABLE RESUMABLE TIMEOUT n；   What will be the result of issuing the above statement？（）

• A、The command will not execute successfully because TIMEOUT is an invalid clause with the ALTER DATABASE ENABLE RESUMABLE command.
• B、 The command will not execute successfully because resumable space allocation is enabled at the session level.
• C、 The command will execute successfully and resumable space will be allocated at the session level.
• D、 The command will execute successfully and resumable space will be allocated at the instance level.

第6题：

You issued the following command at the UNIX environment：   % setenv ORA_SDTZ ’OZ_TZ’   What will be the impact of issuing the above command？（）  

• A、 The operating system local time zone will be set for a user session using the operating system environment variable.
• B、 The database local time zone will be set for a user session using the operating system environment variable.
• C、 The operating system local time zone will be set for the database using the operating system environment
• D、 The database local time zone will be set for the database using the operating system environment variable.

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第13题：

Which command （without options） would you use to display how much space is available on all mounted partitions？（）

第14题：

Which environment variable must be changed in a user’s profile so that upon login， the command prompt identifies the server？（）

• A、PMT
• B、PS1
• C、PRT
• D、PT1

第15题：

Which of the following statements about declaration are true？（）         

• A、 Declaration of primitive types such as boolean， byte and so on does not allocate memory space for the variable.
• B、 Declaration of primitive types such as boolean， byte and so on allocates memory space for the variable.
• C、 Declaration of nonprimitive types such as String， Vector and so on does not allocate memory space for the object.
• D、 Declaration of nonprimitive types such as String， Vector ans so on allocates memory space for the object.

第16题：

Evaluate the following command and its output：   SQL>SELECT * FROM dba_temp_free_space；  TABLESPACE_NAME TABLESPACE_SIZE ALLOCATED_SPACE FREE_SPACE  LMTEMP 250609664 101048576 149561088 Which two statements correctly interpret the output？（）

• A、 FREE_SPACE indicates only the space that is currently unallocated.
• B、 ALLOCATED_SPACE indicates only the space currently allocated and in use.
• C、 FREE_SPACE indicates only the space that is currently allocated and available for reuse.
• D、 ALLOCATED_SPACE indicates both the space currently allocated and used，and the space that is available for reuse.
• E、 FREE_SPACE indicates both the space that is currently allocated and available for reuse，and the space that is currently unallocated.

第17题：

You discover an out-of-space condition in the database. You decide to suspend a session for five minutes. You issue the following command to suspend the session：   ALTER SESSION ENABLE RESUMABLE；   Which command could you issue to enable the resumable space allocation feature at the session level？（）  

• A、 ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 5；
• B、 ALTER SYSTEM ENABLE RESUMABLE_TIMEOUT = 5；
• C、 ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 300；
• D、 ALTER SYSTEM ENABLE RESUMABLE TIMEOUT = 300；

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