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.

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热门试题

单项选择题How does using the service password encryption command on a router provide additional security? （）

A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router

单项选择题What is the maximum data rate specified for IEEE 802.11b WLANs?（）

A. 10 Mbps
B. 11 Mbps
C. 54 Mbps
D. 100 Mbps

单项选择题Which protocol should be used to establish a secure terminal connection to a remote network device? Select the best response.（）

A. ARP
B. SSH
C. Telnet
D. WEP
E. SNMPv1
F. SNMPv2

单项选择题Running both IPv4 and IPv6 on a router simultaneously is known as what?（）

A. 4to6 routing
B. 6to4 routing
C. binary routing
D. dual-stack routing
E. NextGen routing

单项选择题What is an appropriate use of a default route?（）

A. to provide routing to a local web server
B. to provide routing from an ISP to a stub network
C. to provide routing that will override the configured dynamic routing protocol
D. to provide routing to a destination that is not specified in the routing table and which is outside the local network