Packet forwarded between two routers do not carry VLAN tags?

• A.TRUE
• B.FALSE

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Which of the following descriptions regarding IPv6 addresses are correct? (Choose two)

• A.IPv6 extension headers are processed randomly.
• B.IPv6 extension headers are processed in order.
• C.IPv6 addresses are 128 bits in length.
• D.IPv6 addresses are 64 bits in length.

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By default, how long is the lease time of the lP address assigned by the DHCP server?

• A.1 h
• B.24h
• C.18h
• D.12h

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As shown in the figure, if the switch runs STP with default parameters, which of the following ports will be elected as the designated port?

• A.Port G0/0/1 of Switch A
• B.HUB's E0/0/1 port
• C.HUB's E0/0/2 port
• D.Port G0/0/2 of Switch A

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Tracer program is an application layer program, which uses the transport protocol is

• A.ICMP
• B.TCP
• C.ARP
• D.UDP

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