[单选] An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?（）

A . The PC has connectivity with a local host.
B . The PC has connectivity with a Layer 3 device.
C . The PC has a default gateway correctly configured
D . The PC has connectivity up to Layer 5 of the OSI model
E . The PC has the TCP/IP protocol stack correctly installed.

虽然情报信息管理制度进一步健全，但总体仍处于简单、滞后的管理状态。简述企业文化战略。容器设计应具备的基本因素？ Which statement about OSPF ASBR summary LSA is true？（） It is generated by an ASBR and indicates the reachability to an ABR located in another area.。 It is generated by ABR and indicates the reachability to an ASBR located in another AS.。 It is generated by ABR and indicates reachability to itself.。 It is generated by ABR and indicates the reachability to an ASBR located in another area.。 It is generated by ASBR and indicates the reachability to an ABR.。希腊化美术的特点？ An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?（）

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[单选] An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?（）

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