多项选择题

Which of the following IP addresses can be assigned to host devices?（）

A.205.7.8.32/27
B.191.168.10.2/23
C.127.0.0.1
D.224.0.0.10
E.203.123.45.47/28
F.10.10.0.0/13

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多项选择题

Which of the following are VLAN frame encapsulation types that may be configured on a Catalyst switch?（）

A. VTP
B. ISL
C. CDP
D. 802.1Q
E. 802.1p
F. LLC

单项选择题

Which statement describes a spanning-tree network that has converged?（）

A. All switch and bridge ports are in the forwarding state.
B. All switch and bridge ports are assigned as either root or designated ports.
C. All switch and bridge ports are in either the forwarding or blocking state.
D. All switch and bridge ports are either blocking or looping.

多项选择题

What are three valid reasons to assign ports on VLANs on a switch?（）

A. to make VTP easier to implement
B. to isolate broadcast traffic
C. to increase the size of the collision domain
D. to allow more devices to connect to the network
E. to logically group hosts according to function
F. to increase network security