F5 LTM Specialist: Maintain & Troubleshoot 301b Question # 39 Topic 4 Discussion

F5 LTM Specialist: Maintain & Troubleshoot 301b Question # 39 Topic 4 Discussion

301b Exam Topic 4 Question 39 Discussion:
Question #: 39
Topic #: 4

-- Exhibit –

301b Question 39

-- Exhibit --

Refer to the exhibit.

Users receive an error when attempting to connect to the website https://website.com. The website has a DNS record of 195.56.67.90. The upstream ISP has confirmed that there is nothing wrong with the routing between the user and the LTM device.

The following tcpdump outputs have been captured:

External Vlan, filtered on IP 168.210.232.5

00:25:07.598519 IP 168.210.232.5.33159 > 195.56.67.90.https: S 1920647964:1920647964(0) win 8192

00:25:07.598537 IP 195.56.67.90.https > 168.210.232.5.33159: S 2690691360:2690691360(0) ack 1920647965 win 4350

00:25:07.598851 IP 168.210.232.5.33160 > 195.56.67.90.https: S 2763858764:2763858764(0) win 8192

00:25:07.598858 IP 195.56.67.90.https > 168.210.232.5.33160: S 1905576176:1905576176(0) ack 2763858765 win 4350

Internal Vlan, filtered on IP 168.210.232.5

00:31:46.171124 IP 168.210.232.5.33202 > 192.168.100.20.http: S 2389057240:2389057240(0) win 4380

What is the problem?


A.

The filters on the tcpdumps are incorrect.


B.

The DNS entry for website.com is incorrect.


C.

The virtual server 'WEBSERVICES1' is listening on the incorrect port.


D.

The firewall is dropping the connection coming from the pool members returned to the client.


E.

The subnet masks of the pool members of pool WebServices1 and the f5 'Internal' Vlan are incorrect.


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