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F5 BIG-IP LTM Specialist: Maintain and Troubleshoot (301b) Exam Materials-Question 7 Discussion

An LTM Specialist is unable to see any connections on the application server. In the LTM GUI, the server in the pool shows as down. The LTM Specialist runs a tcpdump to determine why the failure is occurring. Refer to the output shown: [root@ltm01:Active:Changes Pending] config # tcpdump -nni 0.0 host 10.100.98.69 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes 17:40:31. IP 10.84.98.51. > 10.100.98.69.80: S (0) win 10.84.98.51. R 0:0(0) ack win 0 What are two potential causes of this issue? (Choose two answers)

A. The HTTP monitor send string is NOT recognized by the server
B. The server is NOT listening on port 80
C. The LTM device has lost its route to the server
D. The LTM device is NOT receiving the correct response string
E. A firewall or other network device is blocking the traffic

Correct Answer: B,E

Brave-Dump Clients Votes

BD 50%

BE 50%

Comments

Anonymous User 2026-03-10 13:15:20

Selected Answers: B, D

Correct Answers

✅ B. The server is NOT listening on port 80
✅ D. The LTM device is NOT receiving the correct response string

E. A firewall or other network device is blocking the traffic ❌
Blocking would typically show no reply, not a server-generated RST.

Anonymous User 2026-04-23 04:48:49

Selected Answers: B, E

RST indicates that the three TCP handshakes failed. Option D assumes that the TCP connection has already been established, so option D is incorrect.