A group of hosts are physically connected to the same switch. The hosts are used by employees of different departments and therefore do not need to directly exchange data on a regular basis.Which technology can a network administrator deploy to reduce unnecessary broadcast traffic between these hosts?（）

单项选择题A network administrator needs to configure a serial link between the main office and a remote location. The router at the remote office is a non-Cisco router.How should the network administrator configure the serial interface of the main office router to make the connection?（）

A.
B.
C.
D.

单项选择题Refer to Topic TestKing.com in iPAD document.Which switch is the root bridge for VLAN 1?（）

A.TestKingD
B.TestKing1
C.TestKing2
D.TestKing3

多项选择题Refer to Topic TestKing.com in iPAD document.Which ports on TestKing3 are operating as trunks?（）

A.Fa0/1
B.Fa0/3
C.Fa0/4
D.Fa0/6
E.Fa0/9
F.Fa0/12

单项选择题Refer to Topic TestKing.com in iPAD document.To which port of TestKing3 is router VLAN-R1 connected?（）

A. Fa 0/1
B. Fa 0/3
C. Fa 0/6
D. Fa 0/8
E. Fa 0/9
F. Fa 0/12

单项选择题Refer to Topic TestKing.com in iPAD document.What interface did Sw-AC3 associate with source MAC address 0010.5a0c.ffba?（）

A.Fa0/1
B.Fa0/3
C.Fa0/6
D.Fa0/8
E.Fa0/9
F.Fa/12