单项选择题
Which of these ports does syslog use to send messages to a syslog server？（）
A. TCP 502
B. TCP 514
C. TCP 520
D. UDP 502
E. UDP 514
F. UDP 520
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相关考题
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WhichoftheseisabenefitofESM？（）
A. supports multiple MIBs
B. includes NetFlow， NBAR， and IP SLA software subsystems
C. includes NetFlow， syslog， and IP SLA software subsystems
D. includes a predefined framework for filtering and correlating messages
E. supports two logging processes so output can be sent in standard and ESM format -
单项选择题
WhichoftheseisaLayer2transportarchitecturethatprovidespacket-basedtransmission optimizedfordatabasedonadual（counter-rotating）ringtopology？（）
A. DTP
B. RPR
C. SDH
D. CWDM
E. DWDM -
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OneofyourcustomerswishestousetheNAStoperformDHCPfunctionsanddoesnotcurrently haveaLayer3gatewayinitsproductionnetwork.Whichgatewaymodeisappropriateforthis customer？（）
A. Virtual Gateway
B. Real-IP Gateway
C. NAT Gateway
D. IP-IP Gateway
