Connectivity Verification Flashcards
What is indicated by a successful ping to the ::1 IPv6 address?
IP is properly installed on the host.
A user complains that the workstation cannot access the network. The network technician asks the user to issue the ping 127.0.0.1 command. What is the purpose of using this command?
To verify that the TCP/IP stack is operational.
What process is used in ICMPv6 for a host to verify that an IPv6 address is unique before configuring it on an interface?
DAD (Duplicate Address Detection)
A network administrator can successfully ping the server at www.cisco.com, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed?
Traceroute
A user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?
When the value of the Hop Limit field reaches zero.
Which ICMPv6 message is sent when the IPv6 hop limit field of a packet is decremented to zero and the packet cannot be forwarded?
Time Exceeded
What message is sent by a host to check the uniqueness of an IPv6 address before using that address?
Neighbor Solicitation
Which protocol is used by ping to test connectivity between network hosts?
ICMP (Internet Control Message Protocol)
A user issues a ping 2001:db8:3040:114::88 command and receives a response that includes a code of 3. What does this code represent?
Port Unreachable
A user issues a ping 192.168.219.8 command and receives a response that includes a code of 0. What does this code represent?
Network Unreachable
What characterizes a traceroute utility?
It identifies the routers in the path from a source host to a destination host.
Why would a manager need to use the tracert command?
To display a list of the near-side router interfaces between the source device and the destination device.
Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?
ICMPv6
