[多项选择]Which two differentiators make RSTP the preferred protocol for preventing Layer 2 loops in a switchednetwork environment?（） (Choose two.)
A. Features such as UplinkFast and BackboneFast are compatible with RSTP.
B. An RSTP that is based on Cisco products generally performs better than the Cisco proprietary 802.1D enhancements.
C. Cisco proprietary enhancements are not transparent.
D. Information about port roles is sent to all switches.
E. RSTPs that are based on Cisco products require no additional configuration.

[多项选择]Which two differentiators make RSTP the preferred protocol for preventing Layer 2 loops in aswitched network environment?（） (Choose two.)
A. Features such as UplinkFast and BackboneFast are compatible with RSTP.
B. An RSTP that is based on Cisco products generally performs better than the Cisco proprietary 802.1D enhancements.
C. Cisco proprietary enhancements are not transparent.
D. Information about port roles is sent to all switches.
E. RSTPs that are based on Cisco products require no additional configuration.

[多项选择]Which two of these statements regarding RSTP are correct? （）
A. RSTP cannot operate with PVST+.
B. RSTP defines new port roles.
C. RSTP defines no new port states.
D. RSTP is a proprietary implementation of IEEE 802.1D STP.
E. RSTP is compatible with the original IEEE 802.1D STP.

[多项选择]Which two states are the port states when RSTP has converged?（）
A. blocking
B. learning
C. discarding
D. forwarding
E. listening

[单项选择]Which command enables RSTP on a switch?（）
A. spanning-tree mode rapid-pvst
B. spanning-tree uplinkfast
C. spanning-tree backbonefast
D. spanning-tree mode mst

[多项选择]Which are the two options to which a menu can be assigned?（） (Choose two.)
A. menu
B. functions
C. data group
D. responsibility
E. functional group

[多项选择]Which are the two prerequisites before setting up Flashback Data Archive? （）(Choose two.)
A. Flash recovery area must be defined
B. Undo retention guarantee must be enabled.
C. Database must be running in archivelog mode.
D. Automatic undo management must be enabled.
E. The tablespace in which the Flashback Data Archive is created must have automatic segment space Management (ASSM).

[多项选择]Which two kinds of failures make the Data Recovery Advisor (DRA)generate a manual checklist? （）
A. failures because a data file is renamed by error
B. failures when no standby database is configured
C. failures that require no archive logs to be applied for recovery
D. failures due to loss of connectivity-for example, an unplugged disk cable

[多项选择]Which two RSTP port roles include the port as part of the active topology？（）
A. root
B. designated
C. alternate
D. backup
E. forwarding
F. learning

[单项选择]

Passage Five Which of your two hands do you use more Very few of us can use both hands equally well. Most of us are right-handed. Only about five people out of a hundred are left-handed. New-born babies can take hold of things with either of their hands, but. in about two years they usually use their right hands. Scientists have found that monkeys like to use one of their hands more than the other, but it can be either hand. There are as many right-handed monkeys as there are left-handed ones. Next time when you visit a zoo, you’ll see that some of them will use their right hands and others will use their left hands. But most of the people use their right hands better and this makes life difficult for those left-handed people. We live in a right-handed world.

We live in a right-handed world. It means （）
A. all the people are right-handed
B. life is hard fbr left-handed people
C. left-handed people can't live
D. there is another left-handed world