JN0-102 · Question #302
Referring to the exhibit, which statement is correct? traceroute to 10.1.15.2 (10.1.15.2), 30 hops max, 40 byte packets 1 10.1.36.1 (10.1.36.1) 0.651 ms 7.834 ms 0.506 ms 2 10.1.23.1 (10.1.23.1) 0.5…
The correct answer is C. The asterisks indicate a response time out. In traceroute output, asterisks (***) indicate that no response was received from the corresponding hop within the default timeout period.
Question
Referring to the exhibit, which statement is correct? traceroute to 10.1.15.2 (10.1.15.2), 30 hops max, 40 byte packets 1 10.1.36.1 (10.1.36.1) 0.651 ms 7.834 ms 0.506 ms 2 10.1.23.1 (10.1.23.1) 0.5 ms 0.5 ms 0.5 ms 3 * * * 4 * * *
Options
- AThe packets have exceeded the time-to-live value.
- BThere is a loop.
- CThe asterisks indicate a response time out.
- DThe asterisks indicate that the traceroute is completed.
How the community answered
(29 responses)- A7% (2)
- B3% (1)
- C86% (25)
- D3% (1)
Why each option
In traceroute output, asterisks (***) indicate that no response was received from the corresponding hop within the default timeout period.
While a TTL value might have expired for the packet, the asterisks themselves directly signify a timeout (no response), not specifically that the TTL was exceeded.
A loop would typically show the same IP addresses repeatedly, not just timeouts, unless the loop leads to a black hole where no responses are sent back.
In a traceroute utility, asterisks (`* * *`) for a given hop indicate that the probe packets sent to that hop did not elicit any response within the configured timeout period, meaning a response timed out.
The asterisks indicate a failure to receive a response, not that the traceroute has completed; completion is indicated by reaching the destination or exceeding the maximum hop count.
Concept tested: Interpreting traceroute output
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fbook/configuration/xe-3s/f_ipapp-xe-3s-book/ipapp_fbook_chap010.html
Topics
Community Discussion
No community discussion yet for this question.