Which two commands are required to enable multicast on a router， knowing that the receivers only  supports IGMPv2？（）

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  A . ip pim rp-address B . ip pim ssm C . ip pim sparse-mode D . ip pim passive

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• Which two operations are NOT performed by the DUPLICATE command in Recovery Manager （RMAN） while duplicating a running database？（）

  A .  Creating the control file for the duplicate database B .  Restoring the target data files to the duplicate database C .  Performing complete recovery using all available backups D .  Generating a new， unique DBID for the duplicate database E .  Copying the online redo log files from the target database to the duplicate database

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• Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true？（）

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• Two switches are connected through a trunk link.which two commands show that there is a native VLAN mismatch on that link?（）

  A . show interfaces interface B . show vlan bri C . show interfaces interface switchport D . show interface interface trunk E . show interfaces vla

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• Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.)（）

  A . It establishes a static route to the 172.16.3.0 network. B . It establishes a static route to the 192.168.2.0 network. C . It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. D . It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. E . It uses the default administrative distance. F . It is a route that would be used last if other routes to the same destination exist.

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• Examine the command： SQL> ALTER USER skd ACCOUNT LOCK； Which two statements are true after the command is executed（）

  A . The SKD user cannot log in to the database instance. B . The objects owned by the SKD user are not accessible to any user. C . The other users can access the objects owned by the SKD user， on which they have access. D . The password for the SKD user expires and the user is forced to change the password at the next log i

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• Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4?（）

  A . It establishes a static route to the 172.16.3.0 network. B . It establishes a static route to the 192.168.2.0 network. C . It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. D . It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. E . It uses the default administrative distance. F . It is a route that would be used last if other routes to the same destination exist.

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• 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.

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