單項選擇題Which statement about vlan operation on cisco catalyst switches is true?()

A.when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table
B.unkown unicast frames are retransmitted only to the ports that belong to the same vlan
C.ports between switches should be configured in access mode so that vlans can span across the ports
D.broadcast and multicast frames are retransmitted to ports that are configured on different vlan


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1.單項選擇題For the network 192.0.2.0/23, which option is a valid IP address that can be assigned to a host?()

A.192.0.2.0
B.192.0.2.255
C.192.0.3.255
D.192.0.4.0

3.單項選擇題

Refer to the exhibit.Which statement describes DLCI 17?()

 

A.DLCI 17 describes the ISDN circuit between R2 and R3.
B.DLCI17 describes a PVC on R2.It cannot be used on R3 or R1.
C.DLCI17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.DLCI17 describes the dial-up circuit from R2 and R3 to the service provider.

4.單項選擇題Which command shows your active Telnet connections?()

A.show session
B.show cdp neighbors
C.show users
D.show queue

5.多項選擇題Which two statements describe the advantages to the use of RIP over the use of OSPF?()

A.RIP requires less time to converge
B.RIP uses less bandwidth
C.RIP is less complex to configure
D.RIP demands fewer router resources
E.RIP has a more accurate metric

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