单项选择题

A. tracert addressB. ping addressC. arp addressD. trace……

Which command can be used from a PC to verfy the connectivity between host that connect through path?（）

A. tracert address
B. ping address
C. arp address
D. traceroute address

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热门试题

单项选择题What is the function of the command switchport trunk native vlan 999 on a switch?（）

A. It designates VLAN 999 for untagged traffic.
B. It blocks VLAN 999 traffic from passing on the trunk.
C. It creates a VLAN 999 interface.
D. It designates VLAN 999 as the default for all unkown tagged traffic.

单项选择题Which IPsec security protocol should be used when confidentiality is required?（）

A. AH
B. MD5
C. PSK
D. ESP

单项选择题Which command can you use to manually assign a static IPV6 address to a router interface?（）

A. ipv6 address PREFIX_1::1/64
B. ipv6 autoconfig 2001:db8:2222:7272::72/64
C. ipv6 autoconfig
D. ipv6 address 2001:db8:2222:7272::72/64

单项选择题Why will a switch never learn a broadcast address?（）

A. Broadcast frames are never sent to swiches.
B. Broadcast addresses use an incorrect format for the switching table.
C. A broadcast address will never be the source address of a frame.
D. Broadcasts only use network layer addressing.
E. A broadcast frame is never forwarded by a switch.

单项选择题Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）

A. link bandwidth
B. hop count
C. link cost
D. administrative distance
E. link delay