[多选题]Regarding the extended ping command; which of the statements below are true?(Select all valid answer choices)
正确答案 :BDE
The extended ping command is available from privileged EXEC mode.
With the extended ping command you can specify the timeout value.
With the extended ping command you can specify the datagram size.
解析:解析:Explanation:
[多选题]Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)
正确答案 :BD
It operates without collisions
It provides faster data transfer
解析:解析:Explanation:
[单选题]OSI七层模型中,数据链路层的数据封装名称为()
正确答案 :B
帧
[单选题]哪个ACL可允许主机10.220.158.10访问web服务器192.168.3.244()
正确答案 :D
access-list 101 permit tcp 10.220.158.10 0.0.0.0 host 192.168.3.224 eq 80
[单选题]OSI七层模型中,物理层的数据封装名称为()
正确答案 :A
比特
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