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F5 BIG-IP Local Traffic Manager (LTM) Specialist: Maintain & Troubleshoot 301b Exam
F5 BIG-IP Local Traffic Manager (LTM) Specialist: Maintain & Troubleshoot 301b Exam is related to F5 Certified Technology Specialists Certification. This 301b Exam validates the ability to do all major task such as design, implement, maintain and troubleshoot of advanced F5 product features to enhance the effectiveness of an Application Delivery Network. This 301b exam also tests the candidates have strong understanding the process of underlying principles from SSL-based VPN implementation to symmetric or asymmetric acceleration and have the ability to draw on that insight to integrate Local Traffic Manager into existing networks as well as new implementations. Network Administrator and Network Engineer. usually, hold or pursue this certification and you can expect the same job roles after completion of this certification.
Exam Domains Overview
301B exam is based on three domains and tries to testify candidate’s knowledge on various topics, including the following:
- Troubleshoot basic performance issues
The last section assesses if the test-taker is aware of LTM device logs issues, can find what can cause them, and what are the ways to construct a viable solution. Other skills needed include the ability to find out why LTM device failover problems arise as well as high availability and/or sync failure. Finally, applicants should know how to interpret log file messages, and more.
- Troubleshoot basic hardware issues
As the title suggests, the second module is dedicated to the key issues and some of the most common ways to deal with them. This part of the outline is quite extensive and consists of 15 sub-domains. By going through all of them, the applicants will learn more about what all it takes to determine which iRule to use to resolve an application issue, the iRule functionality, how to correctly interpret the AVR information for defining performance issues as well as the LTM device misconfiguration, and how to choose the appropriate HTTP/HTTPS application headers.
Finding out the HTTP/HTTPS application errors & their solutions, comparing the traces to determine the root cause of an HTTP/HTTPS application problem and the best way to resolve it, finding out the right protocol analyzer tool, and identifying from where to gather the protocol analyzer data are also covered well in this exam domain along with the topic such as how to define monitor issues and solutions for them.
- Maintain Application and LTM Device Health
This first section intends to check how the candidate determines the appropriate profile setting modifications in a given scenario along with sub-set of an LTM configuration, LTM device statistics, finding out the appropriate upgrade and recovery steps, ways to minimize application outages, benefits of custom alerting, and setting up custom alerts.
AVR alerting capabilities, vCMP environment upgrading, SCF and UCS files, performance statistics, and buffer settings in the TCP profile are some of the skills included in this exam domain.
NEW QUESTION 81
An LTM Specialist has set up a custom SNMP alert.
Which command line tool should the LTM Specialist use to test the alert?
- A. logtest
- B. snmptest
- C. testlog
- D. logger
Answer: D
NEW QUESTION 82
-- Exhibit-
-- Exhibit -
Refer to the exhibits.
After upgrading LTM from v10 to v11, users are unable to connect to an application. The virtual server is using a client SSL profile for re-terminating SSL for payload inspection, but a server SSL profile is being used to re-encrypt the request.
A client side ssldump did NOT show any differences between the traffic going directly to the server and the traffic being processed by the LTM device. However, packet capture was done on the server, and differences were noted.
Which modification will allow the LTM device to process the traffic correctly?
- A. Enable Strict Resume.
- B. Change Secure Renegotiation to "Request."
- C. Change to different ciphers on the server SSL profile.
- D. Enable ProxySSL option in the server SSL profile.
Answer: B
NEW QUESTION 83
An LTM Specialist is investigating reports from users that SSH connections are being terminated unexpectedly. SSH connections are load balanced through a virtual server. The users experiencing this problem are running SQL queries that take upwards of 15 minutes to return with no screen output. The virtual server is standard with a pool associated and no other customizations.
What is causing the SSH connections to terminate?
- A. The virtual server has no persistence.
- B. The pool has Reselect Retries set to 0.
- C. TCP idle timeout
- D. UDP IP ToS
Answer: C
NEW QUESTION 84
-- Exhibit -
-- Exhibit -Refer to the exhibits.
Every monitor has the same Send String, Recv String, and an Alias of *:*. The LTM Specialist simplifies the configuration to minimize the number of monitors.
How many unique monitors remain?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: C
NEW QUESTION 85
-- Exhibit - -- Exhibit -Refer to the exhibit.
An LTM device is used to load balance web content over a secure channel.
The developers of the web content have done a trace using an HTTP profiler application. They believe that allowing the LTM device to compress traffic to the client will improve performance. The client can utilize GZIP or deflate compression algorithms.
An LTM Specialist must implement the compression.
The LTM Specialist has completed the following actions:
1.Create the relevant profile.
2.Apply the relevant profile to the virtual server (VS).
After applying the relevant profile, the LTM device is failing to compress the traffic. Instead, the traffic is being served with an error.
What is the problem?
- A. The LTM device CANNOT SSL offload the traffic in order to read and compress it.
- B. The incorrect compression algorithm is applied to the compression profile.
- C. The Protocol Profile (Client) option of "Allow Compression" needs to be enabled.
- D. The Protocol Profile (Server) option of "Allow Compression" needs to be enabled.
Answer: A
NEW QUESTION 86
A web developer has created a custom HTTP call to a backend application. The HTTP headers being sent by the HTTP call are:
GET / HTTP/1.1
User-Agent: MyCustomApp (v1.0)
Accept: text/html
Cache-Control: no-cache
Connection: keep-alive CookiE. somecookie=1
The backend server is responding with the following:
HTTP/1.1 400 Bad Request DatE. Wed, 20 Jul 2012 17:22:41 GMT Connection: close
Why is the HTTP web server responding with a HTTP 400 Bad Request?
- A. The web server is NOT expecting a keep-alive connection.
- B. The web server is configured to accept HTTP 1.0 requests only.
- C. The client request does NOT include a Host header.
- D. The User-Agent header contains an invalid character.
Answer: C
NEW QUESTION 87
-- 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 pool member is responding with a 404.
- B. The request is NOT being received by the pool member.
- C. The HTTP headers are compressed.
- D. The pool member is responding without HTTP headers.
Answer: D
NEW QUESTION 88
Given this as the first packet displayed of an ssldump:
2 2 1296947622.6313 (0.0001) S>CV3.1(74) Handshake ServerHello Version 3.1 random[32]= 19 21 d7 55 c1 14 65 63 54 23 62 b7 c4 30 a2 f0 b8 c4 20 06 86 ed 9c 1f 9e 46 0f 42 79 45 8a 29 session_id[32]= c4 44 ea 86 e2 ba f5 40 4b 44 b4 c2 3a d8 b4 ad 4c dc 13 0d 6c 48 f2 70 19 c3 05 f4 06 e5 ab a9 cipherSuite TLS_RSA_WITH_RC4_128_SHA compressionMethod NULL
In reviewing the rest of the ssldump, the application data is NOT being decrypted.
Why is ssldump failing to decrypt the application data?
- A. The application data is encrypted with SSLv3.
- B. The BigDB Key Log.Tcpdump.Level needs to be adjusted.
- C. The data is contained within a resumed TLS session.
- D. The application data is encrypted with TLSv1.
Answer: C
NEW QUESTION 89
Given LTM device ltm log:
Sep 26 20:51:08 local/lb-d-1 notice promptstatusd[3695]: 01460006:5: semaphore mcpd.running(1) held
Sep 26 20:51:08 local/lb-d-1 notice promptstatusd[3695]: 01460006:5:
Sep 26 20:51:08 local/lb-d-1 warning promptstatusd[3695]: 01460005:4: mcpd.running(1) held,
wait for mcpd
Sep 26 20:51:08 local/lb-d-1 info sod[3925]: 010c0009:6: Lost connection to mcpd - reestablishing.
Sep 26 20:51:08 local/lb-d-1 err bcm56xxd[3847]: 012c0004:3: Lost connection with MCP:
16908291 ... Exiting bsx_connect.cpp(174)
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0012:6: MCP Exit Status
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0012:6: Info: LACP stats (time
now:1348717868) : no traffic
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0014:6: Exiting...
Sep 26 20:51:08 local/lb-d-1 err lind[3842]: 013c0004:3: IO error on recv from mcpd - connection
lost
Sep 26 20:51:08 local/lb-d-1 notice bigd[3837]: 01060110:5: Lost connection to mcpd with error
16908291, will reinit connection.
Sep 26 20:51:08 local/lb-d-1 err statsd[3857]: 011b0004:3: Initial subscription for system
configuration failed with error ''
Sep 26 20:51:08 local/lb-d-1 err statsd[3857]: 011b0001:3: Connection to mcpd failed with error
'011b0004:3: Initial subscription for system configuration failed with error '''
Sep 26 20:51:08 local/lb-d-1 err csyncd[3851]: 013b0004:3: IO error on recv from mcpd -
connection lost
.............skipping more logs.....
Sep 26 20:51:30 local/lb-d-1 notice sod[3925]: 01140030:5: HA proc_running bcm56xxd is now
responding.
Sep 26 20:51:34 local/lb-d-1 notice sod[3925]: 01140030:5: HA proc_running mcpd is now
responding.
Sep 26 20:51:34 local/lb-d-1 notice sod[3925]: 010c0018:5: Standby
Which daemon failed?
- A. bcm56xxd
- B. promptstatusd
- C. sod
- D. mcpd
- E. lind
Answer: D
NEW QUESTION 90
-- Exhibit -
-- Exhibit --
Refer to the exhibits.
An LTM Specialist is reconfiguring a virtual server to redirect all clients to HTTPS. Testing reveals that the redirect is functioning incorrectly. As part of the troubleshooting process, the LTM Specialist performs a packet capture.
What is the issue?
- A. The virtual server is missing a clientssl profile.
- B. The virtual server is incorrectly processing the HTTP request.
- C. The redirect is sending the client to the incorrect location.
- D. The redirect is causing an infinite loop.
Answer: C
NEW QUESTION 91
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "The connection was reset" in the browser, although connections directly to the pool member show the application is functioning correctly.
ltm pool srv1_https_pool { members { 192.168.2.1:https{ address 192.168.2.1 } } } ltm virtual https_example_vs { destination 192.168.1.155:https ip-protocol tcp mask 255.255.255.255 pool srv1_https_pool profiles { http { } tcp { } } snat automap vlans-disabled }
How should the LTM Specialist resolve this issue?
- A. Remove the HTTP profile from the virtual server.
- B. Add a ClientSSL profile to the virtual server.
- C. Enable HTTP monitoring on the pool.
- D. Disable SNAT Automap on the virtual server.
Answer: A
NEW QUESTION 92
An LTM Specialist loads a UCS file generated on a different LTM device and receives the following error message:
"mcpd[2395]: 01070608:0: License is not operational (expired or digital signature does not match contents)"
Which command should the LTM Specialist use to prevent the error?
- A. tmsh show /sys license
- B. bigpipe config save /config.ucs
- C. tmsh load /sys /ucs rma <path/to/UCS>
- D. tmsh load /sys ucs <path/to/UCS> no-license
- E. tmsh show /sys hardware
Answer: D
NEW QUESTION 93
When re-licensing an LTM device from the command line interface, which tmsh command should the LTM Specialist use to generate the required information to provide on the F5 licensing portal?
- A. tmsh generate /sys dossier
- B. tmsh run /util get-dossier
- C. tmsh install /sys license registration-key
- D. tmsh list /sys registration-key
Answer: B
NEW QUESTION 94
An HTTP 1.1 application utilizes chunking.
Which header should be used to notify the client's browser that there are additional HTTP headers at the end of the message?
- A. From
- B. Trailer
- C. ETag
- D. Expect
Answer: B
NEW QUESTION 95
An LTM Specialist sees these entries in /var/log/ltm:
Oct 25 03:34:31 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Oct 25 03:34:32 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Oct 25 03:34:32 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Oct 25 03:34:32 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Oct 25 03:34:32 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Oct 25 03:34:33 tmm warning tmm[7150]: 01260017:4: Connection attempt to insecure SSL server (see RFC5746) aborteD. 172.16.20.1:443 Assume 172.16.20.0/24 is attached to the VLAN "internal." What should the LTM Specialist use to troubleshoot this issue?
- A. curl -d - -k https://172.16.20.1
- B. tcpdump -i internal host 172.16.20.1 > /shared/ssl.pcap
ssldump < /shared/ssl.pcap - C. ssldump -i internal host 172.16.20.1
- D. tcpdump -s 64 -i internal -w /shared/ssl.pcap host 172.16.20.1
ssldump -r /shared/ssl.pcap
Answer: C
NEW QUESTION 96
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
Which pool can be removed without affecting client traffic?
- A. server_pool
- B. http_pool
- C. ftp_pool
- D. server1_80
Answer: A
NEW QUESTION 97
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Updated PDF (New 2021) Actual F5 301b Exam Questions: https://www.freepdfdump.top/301b-valid-torrent.html
