Online Quizzes

Using Traceroute

1. Traceroute is based on which protocol?

	ping
	DNS
	IP
	ICMP

2. What is a hop?

	A device on a network.
	An intermediate device in a string of devices linking two networks together.
	A default gateway used to get out to the internet.
	An ICMP packet functions as a hop while in traceroute mode.

3. What are some reasons that a traceroute might not make it to the destination? (choose all that apply)

	A firewall is blocking ICMP packets
	The connection to the remote site is down
	No route to the destination
	No DNS setup for the destination IP.
	A router along the path is over loaded
	The destination does not receive connectivity from the same ISP

4. What is an assymetric route?

	Packets go different routes from the source to the destination and vice versa.
	A route that has an odd number of hops
	When a traceroute does not successfully get to the destination
	When the hop times between one hop and another decrease instead of increase

Use the following traceroute to answer the next 3 questions.

[www]:[6:19pm]:[/home/training/www/backroom] > traceroute www.linksys.com
traceroute to webgod.linksys.com (216.237.149.161), 30 hops max, 40 byte packets
1  border1 (209.39.6.1)  0.588 ms  0.558 ms  0.553 ms
2  1.vcso.verio.net (207.55.202.1)  3.159 ms  0.923 ms  0.918 ms
3  i01.dllstx01.us.it.verio.net (157.238.228.13)  1.397 ms  1.388 ms  1.299 ms
4  fa-1-3-0.a10.dllstx01.us.ra.verio.net (129.250.120.141)  1.516 ms  1.582 ms 1.553 ms
5  ge-6-0-0.r02.dllstx01.us.bb.verio.net (129.250.31.48)  1.608 ms  1.780 ms  1.454 ms
6  p16-2-0-0.r00.crtntx01.us.bb.verio.net (129.250.3.164)  2.349 ms  2.353 ms 2.272 ms
7  p16-1-0-0.r00.plalca01.us.bb.verio.net (129.250.4.105)  36.422 ms  36.587 ms 36.349 ms
8  p16-0-0-0.r06.plalca01.us.bb.verio.net (129.250.2.161)  36.429 ms  36.453 ms 36.440 ms
9  paix.px.concentric.net (198.32.176.32)  36.527 ms  37.020 ms  36.317 ms
10  ge10-0.tran2.pal-ca.us.xo.net (64.220.0.18)  36.609 ms  37.410 ms  37.606 ms
11  ge5-3-0d3.RAR2.SanJose-CA.us.xo.net (64.220.0.46)  38.074 ms  38.580 ms  37.924 ms
12  p6-0-0.RAR1.LA-CA.us.xo.net (65.106.0.17)  45.470 ms  45.811 ms  45.585 ms
13  ge10-0.tran2.lax-ca.us.xo.net (64.220.0.82)  47.127 ms  46.527 ms  46.000 ms
14  p3-0.dist2.irv-ca.us.xo.net (64.0.0.174)  48.716 ms  48.303 ms  48.178 ms
15  216.237.149.161 (216.237.149.161)  48.568 ms  48.540 ms  48.216 ms
[www]:[6:19pm]:[/home/training/www/backroom] >

5. What ISP do you think provides connectivity to www.linksys.com?

	verio.net
	xo.net
	exodus.net
	linksys.net

6. Between which two hops did the largest increase in time occur?

	Hops 1 and 2
	Hops 6 and 7
	Hops 11 and 12
	Hops 14 and 15

7. In what city do you think that this site is hosted in?

	Dallas
	Palo Alto
	Los Angeles
	San Jose
	Irvine

Use the following traceroute to answer the following 2 questions:

[www]:[6:34pm]:[/home/rnejdl] > traceroute www.hyundai.com
traceroute to www.hyundai.com (203.240.193.120), 30 hops max, 40 byte packets
 1  border1 (209.39.6.1)  1.623 ms  0.556 ms  0.548 ms
 2  1.vcso.verio.net (207.55.202.1)  1.046 ms  0.729 ms  0.630 ms
 3  i01.dllstx01.us.it.verio.net (157.238.228.13)  1.370 ms  1.293 ms  2.967 ms
 4  ge-2-0-0.a11.dllstx01.us.ra.verio.net (129.250.120.142)  1.674 ms  1.463 ms
 1.436 ms
 5  ge-6-0.r00.dllstx01.us.bb.verio.net (129.250.31.49)  1.393 ms  1.749 ms  1.8
07 ms
 6  above-verio.dfw.above.net (208.185.156.21)  39.048 ms  39.014 ms  38.937 ms
 7  core2-dfw1-oc48.dfw2.above.net (64.125.31.250)  39.389 ms  39.209 ms  39.228
 ms
 8  core3-core2-oc48.dfw2.above.net (216.200.127.218)  38.975 ms  39.038 ms  39.
061 ms
 9  sjc2-dfw2-oc48.above.net (208.184.232.82)  39.085 ms  39.021 ms  39.028 ms
10  core3-core4-oc48.sjc2.above.net (208.184.102.197)  39.412 ms  38.969 ms  38.
954 ms
11  core6-sjc2-oc48-2.sjc1.above.net (208.184.102.205)  39.363 ms  39.126 ms  39
.131 ms
12  main1-core6-oc12-2.sjc1.above.net (64.125.31.54)  39.398 ms  39.274 ms  39.4
01 ms
13  216.200.138.11.onsetel.co.kr (216.200.138.11)  39.741 ms  40.110 ms  39.424
ms
14  202.30.156.249 (202.30.156.249)  204.235 ms  190.317 ms  187.704 ms
15  202.30.243.5 (202.30.243.5)  189.088 ms  187.804 ms  193.742 ms
16  apache.shinbiro.com (203.240.193.116)  188.790 ms  183.375 ms *
[www]:[6:34pm]:[/home/rnejdl] >

8. What ISP hosts the website, www.hyundia.com?

	verio.net
	shinbiro.com
	onsetel.com
	hyundia.net
	above.net

9. Where is www.hyundai.com located physically?

	Dallas, TX
	San Jose, CA
	Korea
	Unable to tell

10. What is a reason that the last hop may show one * for one of the 3 pollings that traceroute performed? (choose all that apply)

	The device does not have any reverse DNS setup
	The device is overloaded
	The device is a Cisco router
	The device is down