单项选择题
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.
相关考题
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单项选择题
WhatisthefunctionoftheCiscoIOScommandipnatinsidesourcestatic10.1.1.5172.35.16.5？（）
A.It creates a global address pool for all outside NAT transactions.
B.It establishes a dynamic address pool for an inside static address.
C.It creates dynamic source translations for all inside local PAT transactions.
D.It creates a one-to-one mapping between an inside local address and an inside global address.
E.It maps one inside source address to a range of outside global addresses. -
多项选择题
WhatcananetworkadministratorutilizebyusingPPPLayer2encapsulation?(Choosethree.)（）
A.VLAN support
B.compression
C.authentication
D.sliding windows
E.multilink support
F.quality of service -
多项选择题
WhichtwostatementsbestdescribethewirelesssecuritystandardthatisdefinedbyWPA？（Choosetwo.）（）
A.It specifies use of a static encryption key that must be changed frequently to enhance security.
B.It requires use of an open authentication method.
C.It specifies the use of dynamic encryption keys that change each time a client establishes a connection.
D.It requires that all access points and wireless devices use the same encryption key.
E.It includes authentication by PSK
