300-135 新题疑问Q20

andsonwu

QUESTION 20
Which two statements about traceroute are true? (Choose two.)
) Y3 g& R7 o6 H4 k( w% XA. It supports a variety of IP header options, including verbose.
B. The DF bit is set by default.
C. The TTL value can be set to 0.
5 `' k( R5 [* F5 N1 eD. The default probe count for each TTL level is 3.
1 W: z8 U# l) z/ T5 T( U6 rE. Extended traceroute operation can use a modified data pattern.
8 c6 _* O% L6 t, ]3 y/ [& v. cCorrect Answer: DE
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另一种答案为 A，D
https://www.cisco.com/c/en/us/su ... ace.html#ext_troute
3 l1 n. M9 D) c9 R: nLoose, Strict, Record, Timestamp, Verbose[none]:       
* x9 {: X: u( _IP header options. You can specify any combination. The traceroute command issues prompts for the required fields. Note that the traceroute command will place the requested options in each probe; however, there is no guarantee that all routers (or end nodes) will process the options.

andsonwu

E. data pattern 好像ping才有

hor5651

thank you