多选题Which two statements are true about precedence values in policy?（） (Choose two.)A1 is the default precedence.BA lower number is preferred.CA higher number is preferred.D100 is the default precedence.

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第3题：

Which two statements about static NAT are true? （）(Choose two.)

• A、Static NAT can only be used with destination NAT.
• B、Static NAT rules take precedence over overlapping dynamic NAT rules.
• C、NAT rules take precedence over overlapping static NAT rules.
• D、A reverse mapping is automatically created.

正确答案:B,D

第4题：

Which two statements are true regarding L2TP? （）(Choose two.)

• A、Tunnels are initiated by the LAC
• B、Tunnels are initiated by the LNS
• C、By default, subscriber authentication occurs on the LNS
• D、By default, subscriber authentication occurs on the LAC

正确答案:A,C

第5题：

Which two statements are true with regard to policy ordering? （）(Choose two.)

• A、The last policy is the default policy, which allows all traffic.
• B、The order of policies is not important.
• C、New policies are placed at the end of the policy list.
• D、The insert command can be used to change the order.

正确答案:C,D

第6题：

Which two statements are true about precedence values in policy?（） (Choose two.)

• A、1 is the default precedence.
• B、A lower number is preferred.
• C、A higher number is preferred.
• D、100 is the default precedence.

正确答案:B,D

第7题：

Which two statements are true about the duplexing of the backups taken by RMAN? （）(Choose two.)

• A、It's only supported for the backups performed on the tape
• B、It is not supported for backup operations that produce image copies
• C、Duplex backups need a parallelism for the device to be equal to number of copies
• D、Duplex backups can be performed to either disk or tape, but cannot be performed on tape and disk simultaneously

正确答案:B,D

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第14题：

Which two statements are true about L2TP tunnels?（） (Choose two.)

• A、Traffic is clear text
• B、Traffic is encrypted 
• C、They are initiated by the LNS
• D、They are initiated by the LAC

正确答案:A,D

第15题：

Which two statements about the best effort model for QoS are true？（）

• A、delay sensitive packets are given preferential treatment
• B、the default policy identifies a delay sensitive class and default class
• C、the default policy identifies a delay sensitive class， best effort class， and default class
• D、the model is highly scalable
• E、the model is still predominant on the internet F the model provides guaranteed service

正确答案:D,E

第16题：

Which two statements are true about pool-based source NAT? （）(Choose two.)

• A、PAT is not supported.
• B、PAT is enabled by default.
• C、It supports the address-persistent configuration option.
• D、It supports the junos-global configuration option.

正确答案:B,C

第17题：

Which two statements are true regarding route preference?（）

• A、Lower preference values are more preferred than higher preference values.
• B、You can modify the default preference values for any of the routing information sources.
• C、By default, a static route is more preferred than a RIP route.
• D、A static route is always preferred over a direct route.

正确答案:A,C

第18题：

Which two statements are true regarding the system-default security policy [edit security policies default-policy]?（）(Choose two.)

• A、Traffic is permitted from the trust zone to the untrust zone.
• B、Intrazone traffic in the trust zone is permitted.
• C、All traffic through the device is denied.
• D、The policy is matched only when no other matching policies are found.

正确答案:C,D

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