单项选择题
To which of these does IP multicast send packets?（）
A. a single host
B. a subset of hosts
C. all hosts sequentially
D. all hosts simultaneously
相关考题
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单项选择题
Which of these ports does syslog use to send messages to a syslog server?（）
A.TCP502
B.TCP514
C.TCP520
D.UDP502
E.UDP514
F.UDP520 -
单项选择题
Which of these is a benefit of ESM?（）
A. supports multiple MIBs
B. includesNetFlow, NBAR, and IP SLA software subsystems
C. includesNetFlow, 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
How does ERS use the VLAN tag?（）
A. to provide service internetworking
B. to support transparency for Layer 2 frames
C. as a connection identifier to indicate destination
D. as a mapping to the DLCI in service internetworking
E. to provide a trunk by which all VLANs can navigate from one site to one or multiple sites
