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Certification Path
The F5 Certified Technology Specialists, Local Traffic Manager certification includes two certification exams that are the following:
- F5 LTM Specialist: Architect, Setup, and Deploy 301a Exam
- F5 LTM Specialist: Maintain and Troubleshoot 301b Exam
NEW QUESTION 31
An LTM Specialist configures an HTTP monitor as follows:
ltm monitor http stats_http_monitor { defaults-from http destination *:*
interval 5
recv "Health check: OK"
send "GET /stats/stats.html HTTP/1.1\\r\\nHost: www.example.com\\r\\nAccept-EncodinG. gzip,
deflate\\r\\nConnection: close\\r\\n\\r\\n"
time-until-up 0
timeout 16
}
The monitor is marking all nodes as down. A trace of the HTTP conversation shows the following:
GET /stats/stats.html HTTP/1.1
Host: www.example.com
Accept-EncodinG. gzip, deflate
Connection: close
HTTP/1.1 401 Authorization Required
DatE. Tue, 23 Oct 2012 19:38:56 GMT
Server: Apache/2.2.15 (Unix)
WWW-AuthenticatE. Basic realm="Please enter your credentials"
Content-LengtH. 480
Connection: close
Content-TypE. text/html; charset=iso-8859-1
Which action will resolve the problem?
- A. Add an NTLM profile to the virtual server.
- B. Add a valid username and password to the monitor.
- C. Use an HTTPS monitor with a valid certificate instead.
- D. Add a backslash before the colon in the receive string.
Answer: B
NEW QUESTION 32
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
An LTM Specialist is investigating intermittent page load issues being reported by users.
What should the LTM Specialist do to resolve the issue?
- A. Remove least connections load balancing method on virtual server.
- B. Remove HTTP monitor on the pool.
- C. Select least connections load balancing method on virtual server.
- D. Assign an HTTP monitor to the pool.
Answer: D
NEW QUESTION 33
-- Exhibit-
-- Exhibit -
Refer to the exhibit.
An LTM Specialist is performing an HTTP trace on the client side of the LTM device and notices there are many undesired headers being sent by the server in the response. The LTM Specialist wants to remove all response headers except "Set-Cookie" and "Location."
How should the LTM Specialist modify the HTTP profile to remove undesired headers from the HTTP response?
- A. Enter the desired header names in the 'Request Header Insert' field.
- B. Enter the desired header names in the 'Response Headers Allowed' field.
- C. Enter the undesired header names in the 'Request Header Erase' field.
- D. Enter the undesired header names in the 'Response Header Erase' field.
Answer: B
NEW QUESTION 34
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 wildcard certificate and use it on all *.example.com virtual servers
- C. create a 0.0.0.0:0 virtual server thus eliminating all virtual servers
- D. create a transparent virtual server thus eliminating all virtual servers
Answer: B
NEW QUESTION 35
An LTM device is monitoring three pool members. One pool member is being marked down.
What should the LTM Specialist enable to prevent the server from being flooded with connections once its monitor determines it is up?
- A. slow ramp timer
- B. manual resume
- C. packet shaping
- D. fastest load balance algorithm
- E. hold down timer
Answer: A
NEW QUESTION 36
-- Exhibit -
-- Exhibit -Refer to the exhibit.
The decoded TCPDump capture is a trace of a failing health monitor. The health monitor is sending the string shown in the capture; however, the server response is NOT as expected. The receive string is set to 'SERVER IS UP'.
What is the solution?
- A. Incorrect syntax in send string. 'HTTP/1.1' should be 'HTTP1.1'.
- B. Incorrect syntax in send string. 'Connection: Close' should be 'Connection: Open'.
- C. The GET request Host header field requires a host name.
- D. The /test_page.html does NOT exist on the web server and should be added.
Answer: D
NEW QUESTION 37
-- Exhibit-
-- 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 <mss 1450,nop,nop,sackOK>
00:25:07.598537 IP 195.56.67.90.https > 168.210.232.5.33159: S 2690691360:2690691360(0) ack 1920647965 win 4350 <mss 1460,sackOK,eol>
00:25:07.598851 IP 168.210.232.5.33160 > 195.56.67.90.https: S 2763858764:2763858764(0) win 8192 <mss 1450,nop,nop,sackOK>
00:25:07.598858 IP 195.56.67.90.https > 168.210.232.5.33160: S 1905576176:1905576176(0) ack 2763858765 win 4350 <mss 1460,sackOK,eol>
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 <mss 1460,nop,wscale 0,sackOK,eol>
What is the problem?
- A. The subnet masks of the pool members of pool WebServices1 and the f5 'Internal' Vlan are incorrect.
- B. The DNS entry for website.com is incorrect.
- C. The firewall is dropping the connection coming from the pool members returned to the client.
- D. The filters on the tcpdumps are incorrect.
- E. The virtual server 'WEBSERVICES1' is listening on the incorrect port.
Answer: C
NEW QUESTION 38
A new web application is hosted at www.example.net, but some clients are still pointing to the legacy web application at www.example.com.
Which iRule will allow clients referencing www.example.com to access the new application?
- A. when HTTP_DATA {
if {[HTTP::host] equals "www.example.*" }{
HTTP::redirect "http://www.example.net" }
} - B. when HTTP_RESPONSE {
if {[HTTP::host] equals "www.example.com" }{
HTTP::redirect "http://www.example.net" }
} - C. when HTTP_REQUEST {
if {[HTTP::host] equals "www.example.*" }{
HTTP::redirect "http://www.example.net" }
} - D. when HTTP_REQUEST {
if {[HTTP::host] equals "www.example.com" }{
HTTP::redirect "http://www.example.net" }
}
Answer: D
NEW QUESTION 39
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 packet capture tcpdump -ni vlan301 should be executed on the command line interface. There is no need to change profiles or PVA acceleration.
- B. The standard FastL4 profile should have PVA acceleration disabled. Then 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. Then the packet capture tcpdump -ni vlan301 should be executed on the command line interface.
- D. The LTM device is under light load. The traffic should be mirrored to a dedicated sniffing device. On the sniffing device, the packet capture tcpdump -ni vlan301 should be executed.
Answer: C
NEW QUESTION 40
-- Exhibit-
-- Exhibit -Refer to the exhibit. A layer 2 nPath routing configuration has been deployed. A packet capture contains a client
connection packet with the following properties:
Source IP: <Virtual Server>
Destination IP: <Client A>
At which two locations could the packet capture have been taken? (Choose two.)
- A. the internal interface of the Internet firewall
- B. the network interface of web server
- C. the DMZ interface of the Internet firewall
- D. the external VLAN interface of the LTM device
Answer: A,B
NEW QUESTION 41
-- Exhibit -
-- Exhibit -Refer to the exhibit. An LTM Specialist has created a virtual server to balance connections to a pool of application
servers and offload SSL decryption. Clients connect to the application at
https://www.example.com/. The virtual server is configured with a clientssl profile but no serverssl profile. The application servers are listening on ports 80 and 443. Users are unable to connect to the application through the virtual server but are able to connect directly to the application server.
What is the root cause of the error?
- A. The LTM device is redirecting users to HTTPS.
- B. The LTM device is chunking responses.
- C. The application servers are redirecting users to HTTPS.
- D. The pool members are configured with the wrong port.
Answer: C
NEW QUESTION 42
An LTM Specialist has a single HTTPS virtual server doing SSL termination. No server SSL profile is defined. The pool members are on the internal VLAN answering on HTTP port 80. Users with certain browsers are experiencing issues.
Which two locations are most appropriate to gather packets needed to determine the SSL issue? (Choose two.)
- A. LTM device's external VLAN
- B. LTM device's internal VLAN
- C. user's computer
- D. server interface
- E. LTM device's management interface
Answer: A,C
NEW QUESTION 43
An LTM Specialist is tasked with ensuring that the syslogs for the LTM device are sent to a remote syslog server.
The following is an extract from the config file detailing the node and monitor that the LTM device is using for the
remote syslog server:
monitor Syslog_15002 { defaults from udp dest *:15002
}
node 91.223.45.231 { monitor Syslog_15002
screen RemoteSYSLOG }
There seem to be problems communicating with the remote syslog server. However, the pool monitor shows that the remote server is up.
The network department has confirmed that there are no firewall rules or networking issues preventing the LTM device from
communicating with the syslog server. The department responsible for the remote syslog server indicates that there may
be problems with the syslog server. The LTM Specialist checks the BIG-IP LTM logs for errors relating to the remote syslog
server. None are found. The LTM Specialist does a tcpdump:
tcpdump -nn port 15002, with the following results: 21:28:36.395543 IP 192.168.100.100.44772 > 91.223.45.231.15002: UDP, length 19 21:28:36.429073 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 169 21:28:36.430714 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 181 21:28:36.840524 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 169 21:28:36.846547 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 181 21:28:39.886343 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 144
NotE. 192.168.100.100 is the self IP of the LTM device.
Why are there no errors for the remote syslog server in the log files?
- A. The monitor type used is inappropriate.
- B. The "verbose" logging option needs to be enabled for the pool.
- C. The -log option for tcpdump needs to be used.
- D. When the remote syslog sever fails, it returns to service before the timeout for the monitor has expired.
Answer: A
NEW QUESTION 44
-- Exhibit-
-- Exhibit -
Refer to the exhibits.
When observing the AVR statistics for the HTTPS_VS, an LTM Specialist realizes that HTTP status codes are NOT being recorded.
How should the LTM Specialist modify the configuration to record the HTTP status codes?
- A. enable Collected Entities, Response Codes on the analytics profile
- B. assign a streaming profile to the virtual server
- C. enable Statistics Logging Type, External on the analytics profile
- D. assign client SSL and server SSL profiles to the virtual server
Answer: A
NEW QUESTION 45
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
An LTM Specialist has uploaded a qkview to F5 iHealth.
Within the GUI, what is the correct procedure to comply with the recommendation shown in the
exhibit?
- A. Obtain product version image from images.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name. - B. Obtain product version image from downloads.f5.com.
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name. - C. Obtain product version image from release.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name. - D. Log a call requesting the product version image via websupport.f5.com
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name.
Answer: B
NEW QUESTION 46
-- 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.
How should the send string be modified to correct this issue?
- A. GET /\r\nHost: \r\n\r\n
- B. GET /\r\n\r\n
- C. GET /\r\nHTTP/1.0\r\n\r\n
- D. GET / HTTP/1.0\r\n\r\n
Answer: D
NEW QUESTION 47
-- Exhibit- -- Exhibit -
Refer to the exhibits.
A customer requests to offload SSL for an internal website. The front page of the website loads correctly; however, selecting links on the page fails.
How should the LTM Specialist fix the issue?
- A. Create a new HTTP profile.
Enable redirect rewrite.
Add the new HTTP profile to the VS. - B. Create a new Server SSL profile.
Enable Proxy SSL.
Add the Server SSL profile to the VS. - C. Create a new SNAT pool.
Add internal network IPs to the SNAT pool.
Add the SNAT pool to the VS. - D. Create a new HTTP profile.
Enable Insert X-Forwarded-For.
Add the new HTTP profile to the VS.
Answer: A
NEW QUESTION 48
Given the iRule:
when HTTP_REQUEST {
if {([HTTP::username] ne "") and ([HTTP::password] ne "") } {
log local0. "client ip [IP::remote_addr] credentials provided [HTTP::username] [HTTP::password]"}
else {
pool old_application_pool
}
}
The associated virtual server has a default pool named new_application_pool.
Which functionality does the iRule provide?
- A. Allows clients without credentials to access the old_application_pool and logs the attempted access of clients without credentials to the new_application_pool.
- B. Allows clients without credentials to access the old_application_pool and logs the access of clients with credentials to the new_application_pool.
- C. Allows clients with credentials to access the old_application_pool and logs the access of clients without credentials to the new_application_pool.
- D. Allows clients with credentials to access the old_application_pool and logs the attempted access of clients with credentials to the new_application_pool.
Answer: B
NEW QUESTION 49
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
An LTM Specialist is performing an HTTP trace on the client side of the LTM device and notices there are many undesired headers being sent by the server in the response. The LTM Specialist wants to remove all response headers except "Set-Cookie" and "Location."
How should the LTM Specialist modify the HTTP profile to remove undesired headers from the HTTP response?
- A. Enter the desired header names in the 'Request Header Insert' field.
- B. Enter the desired header names in the 'Response Headers Allowed' field.
- C. Enter the undesired header names in the 'Request Header Erase' field.
- D. Enter the undesired header names in the 'Response Header Erase' field.
Answer: B
NEW QUESTION 50
-- Exhibit-
-- Exhibit -
Refer to the exhibits.
An LTM Specialist uses the information in the logs to determine the cause of a failover event in a high-availability (HA) pair.
What caused the failover?
- A. The process bcm56xxd received SIGTERM from the watchdog process.
- B. The system was administratively rebooted.
- C. The overdog process crashed.
- D. The configuration reload request caused the config to reload and the device to failover.
Answer: B
NEW QUESTION 51
An LTM device pool has suddenly been marked down by a monitor. The pool consists of members
10.0.1.1:443 and 10.0.1.2:443 and are verified to be listening. The affected virtual server is
10.0.0.1:80.
Which two tools should the LTM Specialist use to troubleshoot the associated HTTPS pool monitor via the command line interface? (Choose two.)
- A. tcpdump
- B. ssldump
- C. telnet
- D. curl
Answer: B,D
NEW QUESTION 52
......
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