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Free F5 BIG-IP LTM Specialist (301b) Practice Questions & Answers 2026 Part1

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Question #1
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C

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Question #2
An LTM Specialist has just captured trace /var/tmp/trace.cap for site www.example.com while listening on virtual address 10.0.0.1:443 configured on partition Application A. The data payload being captured is SSL encrypted.Which command should the LTM Specialist execute to decrypt the data payload?
A. ssldump -Aed -nr /var/tmp/trace
B. ssldump -Aed -nr /var/tmp/trace
C. ssldump -Aed -nr /var/tmp/trace
D. ssldump -Aed -nr /var/tmp/trace
View answer
Correct Answer: B
Question #3
An LTM Specialist has just captured trace /var/tmp/trace.cap for site www.example.com while listening on virtual address 10.0.0.1:443 configured on partition Application A. The data payload being captured is SSL encrypted.Which command should the LTM Specialist execute to decrypt the data payload?
A. ssldump -Aed -nr /var/tmp/trace
B. ssldump -Aed -nr /var/tmp/trace
C. ssldump -Aed -nr /var/tmp/trace
D. ssldump -Aed -nr /var/tmp/trace
View answer
Correct Answer: B
Question #4
There is a fault with an LTM device load balanced trading application that resides on directly connected VLAN vlan-301. The application virtual server is 10.0.0.1:80 with trading application backend servers on subnet 192.168.0.0/25. The LTM Specialist wants to save a packet capture with complete payload for external analysis.Which command should the LTM Specialist execute on the LTM device command line interface?
A. tcpdump -vvv -w /var/tmp/trace
B. tcpdump -vvv -s 0 -w /var/tmp/trace
C. tcpdump -vvv -nni vlan-301 -w /var/tmp/trace
D. tcpdump -vvv -s 0 -nni vlan-301 -w /var/tmp/trace
View answer
Correct Answer: D
Question #5
Which iRule will reject any connection originating from a 10.0.0.0/8 network?
A. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::remote_addr] mask 8]switch $remote_ip {"10
B. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 8]switch $remote_ip {"10
C. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::client_addr] mask 255
D. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 255
View answer
Correct Answer: C
Question #6
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C
Question #7
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #8
An LTM Specialist has just captured trace /var/tmp/trace.cap for site www.example.com while listening on virtual address 10.0.0.1:443 configured on partition Application A. The data payload being captured is SSL encrypted.Which command should the LTM Specialist execute to decrypt the data payload?
A. ssldump -Aed -nr /var/tmp/trace
B. ssldump -Aed -nr /var/tmp/trace
C. ssldump -Aed -nr /var/tmp/trace
D. ssldump -Aed -nr /var/tmp/trace
View answer
Correct Answer: B
Question #9
There is a fault with an LTM device load balanced trading application that resides on directly connected VLAN vlan-301. The application virtual server is 10.0.0.1:80 with trading application backend servers on subnet 192.168.0.0/25. The LTM Specialist wants to save a packet capture with complete payload for external analysis.Which command should the LTM Specialist execute on the LTM device command line interface?
A. tcpdump -vvv -w /var/tmp/trace
B. tcpdump -vvv -s 0 -w /var/tmp/trace
C. tcpdump -vvv -nni vlan-301 -w /var/tmp/trace
D. tcpdump -vvv -s 0 -nni vlan-301 -w /var/tmp/trace
View answer
Correct Answer: D
Question #10
In which file would the LTM Specialist find virtual server configurations?
A. igip
B. igip_sys
C. igip_base
D. rofile_base
View answer
Correct Answer: A
Question #11
-- 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. AEnable Strict Resume
B. BChange Secure Renegotiation to 'Request
C. CEnable ProxySSL option in the server SSL profile
D. DChange to different ciphers on the server SSL profile
View answer
Correct Answer: B
Question #12
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #13
An LTM Specialist must perform a hot fix installation from the command line.What is the correct procedure to ensure that the installation is successful?
A. import the hot fix to the /var/shared/images directory check the integrity of the file with an md5 checksumtmsh apply sys software hotfix volume
B. import the hot fix to the /var/shared/images directory check the integrity of the file with an md5 checksumtmsh install sys software hotfix
C. import the hot fix to the /shared/images directorycheck the integrity of the file with an md5 checksumtmsh apply sys software hotfix volume
D. import the hot fix to the /shared/images directorycheck the integrity of the file with an md5 checksumtmsh install sys software hotfix
View answer
Correct Answer: D
Question #14
An LTM device is load balancing telnet and ssh applications in a client/server environment experiencing significant packet delay.Which setting in the TCP profile should reduce the amount of packet delay?
A. disable Bandwidth Delay
B. disable Nagle's Algorithm
C. enable Proxy Maximum Segment
D. increase Maximum Segment Retransmissions
View answer
Correct Answer: B
Question #15
There is a fault with an LTM device load balanced trading application that resides on directly connected VLAN vlan-301. The application virtual server is 10.0.0.1:80 with trading application backend servers on subnet 192.168.0.0/25. The LTM Specialist wants to save a packet capture with complete payload for external analysis.Which command should the LTM Specialist execute on the LTM device command line interface?
A. tcpdump -vvv -w /var/tmp/trace
B. tcpdump -vvv -s 0 -w /var/tmp/trace
C. tcpdump -vvv -nni vlan-301 -w /var/tmp/trace
D. tcpdump -vvv -s 0 -nni vlan-301 -w /var/tmp/trace
View answer
Correct Answer: D
Question #16
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #17
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. he pool has Reselect Retries set to 0
B. CP idle timeout
C. DP IP ToS
D. he virtual server has no persistence
View answer
Correct Answer: B
Question #18
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C
Question #19
A web application is meant to log the URI of the resource that responded to the client's initial Request-URI.Which HTTP header will supply this information?
A. ia
B. railer
C. erver
D. eferer
View answer
Correct Answer: D
Question #20
An LTM device is load balancing SIP traffic. An LTM Specialist notices that sometimes the SIP request is being load balanced to the same server as the initial connection.Which setting in the UDP profile will make the LTM device more evenly distribute the SIP traffic?
A. nable Datagram LB
B. isable Datagram LB
C. et Timeout to Indefinite
D. et Timeout to Immediate
View answer
Correct Answer: A
Question #21
There is a fault with an LTM device load balanced trading application that resides on directly connected VLAN vlan-301. The application virtual server is 10.0.0.1:80 with trading application backend servers on subnet 192.168.0.0/25. The LTM Specialist wants to save a packet capture with complete payload for external analysis.Which command should the LTM Specialist execute on the LTM device command line interface?
A. tcpdump -vvv -w /var/tmp/trace
B. tcpdump -vvv -s 0 -w /var/tmp/trace
C. tcpdump -vvv -nni vlan-301 -w /var/tmp/trace
D. tcpdump -vvv -s 0 -nni vlan-301 -w /var/tmp/trace
View answer
Correct Answer: D
Question #22
In which file would the LTM Specialist find virtual server configurations?
A. bigip
B. bigip_sys
C. bigip_base
D. profile_base
View answer
Correct Answer: A
Question #23
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #24
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #25
There is a fault with an LTM device load balanced trading application that resides on directly connected VLAN vlan-301. The application virtual server is 10.0.0.1:80 with trading application backend servers on subnet 192.168.0.0/25. The LTM Specialist wants to save a packet capture with complete payload for external analysis.Which command should the LTM Specialist execute on the LTM device command line interface?
A. tcpdump -vvv -w /var/tmp/trace
B. tcpdump -vvv -s 0 -w /var/tmp/trace
C. tcpdump -vvv -nni vlan-301 -w /var/tmp/trace
D. tcpdump -vvv -s 0 -nni vlan-301 -w /var/tmp/trace
View answer
Correct Answer: D
Question #26
Which iRule will reject any connection originating from a 10.0.0.0/8 network?
A. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::remote_addr] mask 8]switch $remote_ip {"10
B. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 8]switch $remote_ip {"10
C. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::client_addr] mask 255
D. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 255
View answer
Correct Answer: C
Question #27
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C
Question #28
An LTM Specialist is troubleshooting a problem on an eCommerce website. The user browses the online store using port 80, adding items to the shopping cart. The user then clicks the "Checkout" button on the site, which redirects the user to port 443 for the checkout process. Suddenly, the user's shopping cart is shown as empty. The shopping cart data is stored in memory on the server, and the default source address persistence profile is used on both virtual servers.What is the issue?
A. he port 80 and port 443 connections are balanced to the same node
B. he port 80 and port 443 connections are balanced to different nodes
C. he port 80 pool member is deleting the user's session cookie
D. he port 443 pool member is deleting the user's session cookie
View answer
Correct Answer: B
Question #29
An LTM Specialist has configured a virtual server for www.example.com, load balancing connections to a pool of application servers that provide a shopping cart application. Cookie persistence is enabled on the virtual server. Users are able to connect to the application, but the user's shopping cart fails to update. A traffic capture shows the following:Request: GET /cart/updatecart.php HTTP/1.1 Host: www.example.com Connection: keep-alive Cache-Control: max-age=0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.4 (KHTML,like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-EncodinG.gzip,deflate,sdch Accept-LanguagE.en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 CookiE.BIGipServerwebstore_pool=353636524.20480.0000Response:HTTP/1.1 200 OKDatE.Wed, 24 Oct 2012 18:00:13 GMTServer: Apache/2.2.22 (Ubuntu)X-Powered-By: PHP/5.3.10-1ubuntu3.1Set-CookiE.cartID=647A5EA6657828C69DB8188981CB5; path=/;domain=wb01.example.comKeep-AlivE.timeout=5, max=100Connection: Keep-AliveContent-TypE.text/htmlNo changes can be made to the application.What should the LTM Specialist do to resolve the problem?
A. nable source address persistence as a fallback persistence method
B. reate a universal persistence profile on the cartID cookie
C. reate a cookie persistence profile with "match across services" enabled
D. se an iRule to rewrite the cartID cookie domain
View answer
Correct Answer: D
Question #30
An LTM Specialist has just captured trace /var/tmp/trace.cap for site www.example.com while listening on virtual address 10.0.0.1:443 configured on partition Application A. The data payload being captured is SSL encrypted.Which command should the LTM Specialist execute to decrypt the data payload?
A. ssldump -Aed -nr /var/tmp/trace
B. ssldump -Aed -nr /var/tmp/trace
C. ssldump -Aed -nr /var/tmp/trace
D. ssldump -Aed -nr /var/tmp/trace
View answer
Correct Answer: B
Question #31
An LTM Specialist is working with an LTM device configured with 10 virtual servers on the same domain with a different key/cert pair per virtual. For examplE. www.example.com; ftp.example.com; ssh.example.com; ftps.example.com.What should the LTM Specialist do to reduce the number of objects on the LTM device?
A. create a 0 port virtual server and have it answer for all protocols
B. create a 0
C. create a transparent virtual server thus eliminating all virtual servers
D. create a wildcard certificate and use it on all *
View answer
Correct Answer: D
Question #32
Which iRule will reject any connection originating from a 10.0.0.0/8 network?
A. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::remote_addr] mask 8]switch $remote_ip {"10
B. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 8]switch $remote_ip {"10
C. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::client_addr] mask 255
D. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 255
View answer
Correct Answer: C
Question #33
An LTM Specialist uploaded new releases .iso and .md5 files titled "BIGIP-FILENAME" via the GUI.Which commands are run via the command line from the root directory to verify the integrity of thenew .iso file?
A. d /var/shared/images md5sum --check BIGIP-FILENAME
B. d /shared/images md5sum --check BIGIP-FILENAME
C. d /var/shared/images md5sum --check BIGIP-FILENAME
D. d /shared/images md5sum --check BIGIP-FILENAME
View answer
Correct Answer: D
Question #34
An LTM Specialist must perform a packet capture on a virtual server with an applied standard FastL4 profile. The virtual server 10.0.0.1:443 resides on vlan301.Which steps should the LTM Specialist take to capture the data payload successfully while ensuring no other virtual servers are affected?
A. The standard FastL4 profile should have PVA acceleration disabled
B. The packet capture tcpdump -ni vlan301 should be executed on the command line interface
C. A new FastL4 profile should be created and applied to the virtual server with PVA acceleration disabled
D. The LTM device is under light load
View answer
Correct Answer: C
Question #35
The pool members are serving up simple static web content.The current virtual server configuration is given as follows:tmsh list ltm virtual simpleltm virtual simple {destination 10.10.10.10:80ip-protocol tcpmask 255.255.255.255profiles {http { }httpcompression { }oneconnect { }tcp { }}snat automapvlans-disabled}tmsh list ltm pool simple_poolltm pool simple_pool {members {10.10.10.11:80 {address 10.10.10.11 }10.10.10.12:80 {address 10.10.10.12 }10.10.10.12:80 {address 10.10.10.13 }}}Which three objects in the virtual server configuration can be removed without disruptingfunctionality of the virtual server? (Choose three.)
A. tcp
B. http
C. oneconnect
D. snat automap
E. httpcompression
View answer
Correct Answer: BCE
Question #36
What is the correct command to reset an LTM device to its default settings?
A. tmsh reset-all default
B. tmsh set /sys config defaults
C. tmsh load /sys config default
D. tmsh /util bigpipe reset-factory-defaults
View answer
Correct Answer: C
Question #37
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C
Question #38
Which iRule will reject any connection originating from a 10.0.0.0/8 network?
A. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::remote_addr] mask 8]switch $remote_ip {"10
B. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 8]switch $remote_ip {"10
C. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::client_addr] mask 255
D. when CLIENT_ACCEPTED {set remote_ip [IP::addr [IP::local_addr] mask 255
View answer
Correct Answer: C
Question #39
Internet clients connecting to a virtual server to download a file are experiencing about 150 ms of latency and no packet loss.Which built-in client-side TCP profile provides the highest throughput?
A. cp
B. cp-legacy
C. cp-lan-optimized
D. cp-wan-optimized
View answer
Correct Answer: D
Question #40
A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.Which iRule provides the proper functionality?
A. when HTTP_DATA {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
B. when HTTP_RESPONSE {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
C. when HTTP_REQUEST {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
D. when HTTP_OPEN {if {[HTTP::header exists X-Forwarded-For]}{pool pool_a} else {pool pool_b}}
View answer
Correct Answer: C

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