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How to study the F5 301b Exam
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Mandatory Prerequisites
The vendor states that one should have a valid F5-CA, BIG-IP certification before aiming at the F5 301B exam. One more eligibility requirement is to first secure the passing grades in 301A BIG IP LTM Specialist: Architect, Set up, Deploy Exam. This demonstrates a firm knowledge base and makes the whole path much easier.
Certification 301b Torrent & 301b Testdump
A whole new scope opens up to you and you are immediately hired by reputed firms. Even though the F5 301b certification boosts your career options, you have to pass the 301b Exam. This F5 301b exam serves to filter out the capable from incapable candidates.
F5 LTM Specialist: Maintain & Troubleshoot Sample Questions (Q52-Q57):
NEW QUESTION # 52
A failover event is recorded in the log messages:
Jan 01 00:00:50 BIG-IP notice sod[5855]: 01140029:5: HA proc_running tmm fails action is go offline and down links.
Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0050:5: Sod requests links down. Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0054:5: Offline for traffic group /Common/traffic-group-1.
Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c003e:5: Offline
Jan 01 00:00:50 BIG-IP notice logger: /usr/bin/tmipsecd --tmmcount 4 ==> /usr/bin/bigstart stop racoon Jan 01 00:00:50 BIG-IP info lacpd[5502]: 01160016:6: Failover event detected.
(Switchboard failsafe disabled while offline)
Jan 01 00:00:51 BIG-IP err bcm56xxd[5296]: 012c0010:3: Failover event detected. Marking external interfaces down. bsx.c(3633) Jan 01 00:00:51 BIG-IP info bcm56xxd[5296]: 012c0015:6: Link: 1.1 is DOWN Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143c:5: Connection to CMI peer 10.0.0.3
has been removed
Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143a:5: CMI reconnect timer: enabled
Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 01071431:5: Attempting to connect to CMI peer 10.0.0.3 port 6699
What is the cause of the failover?
- A. A switchboard failure caused system fail-safe to initiate the failover.
- B. TMM failed, and system fail-safe initiated the failover.
- C. TMM failed, and VLAN fail-safe initiated the failover.
- D. Loss of connection to CMI peer 10.0.0.3 initiated the failover.
Answer: B
NEW QUESTION # 53
A client (10.10.1.30) connecting to an HTTPS virtual server (10.10.1.100) with a clientssl profile is getting an SSL error.
Which options will trace this issue?
- A. tcpdump -i external -X -s 0 -vvv src host 10.10.10.30 and dst host 10.10.1.100 and port 443 > /shared/ssl_problem.cap ssldump -r /shared/ssl_problem.cap -n -x
- B. tcpdump -i external -X -e -nn -vvv -w /shared/ssl_problem.cap port 443 and host 10.10.1.30 ssldump -r /shared/ssl_problem.cap -n -x
- C. tcpdump -i external -s 0 -w /shared/ssl_problem.cap port 443 and host 10.10.10.30 and host 10.10.1.100 ssldump -r /shared/ssl_problem.cap -n -x
- D. tcpdump -i external -X -e -nn -vv port 443 and host 10.10.1.100 and host 10.10.1.30 > /shared/ssl_problem.cap ssldump -n -x < /shared/ssl_problem.cap
Answer: C
NEW QUESTION # 54
An application is configured on an LTM device:
Virtual server: 10.0.0.1:80 (VLAN vlan301)
SNAT IP: 10.0.0.1
Pool members: 10.0.1.1:8080, 10.0.1.2:8080, 10.0.1.3:8080 (VLAN vlan302)
Which packet capture should the LTM Specialist perform on the LTM device command line interface to capture only server traffic specifically for this application?
- A. tcpdump -ni 0.0:nnn -s 0 '(port 80 and host 10.0.0.1) or (port 8080 and host 10.0.1.1 or host 10.0.1.2 or host 10.0.1.3)' -w /var/tmp/trace.cap
- B. tcpdump -ni vlan301 -s 0 'port 80 and host 10.0.0.1' -w /var/tmp/trace.cap
- C. tcpdump -ni vlan302 -s 0 'port 8080 and (host 10.0.1.1 or host 10.0.1.2 or host 10.0.1.3)' -w /var/tmp/trace.cap
- D. tcpdump -ni 0.0:nnn -s 0 'host 10.0.0.1' -w /var/tmp/trace.cap
Answer: C
NEW QUESTION # 55
An LTM device has a virtual server configured as a Performance Layer 4 virtual listening on
0.0.0.0:0 to perform routing of packets to an upstream router. The client machine at IP address
192.168.0.4 is attempting to contact a host upstream of the LTM device on IP address 10.0.0.99.
The network flow is asymmetrical, and the following TCP capture displays:
# tcpdump -nnni 0.0 'host 192.168.0.4 and host 10.0.0.99' tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes
05:07:55.499954 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack
3267995082 win 1480 05:07:55.499983 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0 05:07:56.499960 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack
3267995082 win 1480 05:07:56.499990 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0 4 packets captured
Which option within the fastL4 profile needs to be enabled by the LTM Specialist to prevent the LTM device from rejecting the flow?
- A. Generate Initial Sequence Number
- B. Loose Initiation
- C. Loose Close
- D. Reset on Timeout
Answer: B
NEW QUESTION # 56
-- Exhibit-
-- Exhibit -Refer to the exhibit.
An LTM Specialist is troubleshooting an HTTP monitor that is marking a pool member as down. Connecting to the pool member directly through a browser shows the application is up and functioning correctly.
ltm monitor http http_mon { defaults-from http destination *:* interval 5 recv "200 OK" send "GET /\\r\\n" time-until-up 0 timeout 16 }
What is the issue?
- A. The request is NOT being received by the pool member.
- B. The pool member is responding without HTTP headers.
- C. The pool member is responding with a 404.
- D. The HTTP headers are compressed.
Answer: B
NEW QUESTION # 57
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