LTM Specialist: Maintain & Troubleshoot (301b) Free Practice Test

Question 1

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Refer to the exhibit.
A server administrator notices that one server is intermittently NOT being sent any HTTP requests. The server logs display no issues. The LTM Specialist notices log entries stating the node (172.16.20.1) status cycling between down and up. The pool associated with the virtual server (10.10.1.100) has a custom HTTP monitor applied.
Which tcpdump filter will help trace the monitor?

A. tcpdump -i external port 80 and host 172.16.20.1

B. tcpdump -i internal port 80 and host 172.16.1.31

C. tcpdump -i external port 80 and host 10.10.1.100

D. tcpdump -i internal port 80 and host 172.16.1.33

Correct Answer: B

Question 2

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. Enable HTTP monitoring on the pool.

B. Add a ClientSSL profile to the virtual server.

C. Disable SNAT Automap on the virtual server.

D. Remove the HTTP profile from the virtual server.

Correct Answer: D

Question 3

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-- Exhibit -
Refer to the exhibit.
An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The LTM Specialist performs a capture on the server side of the LTM device.
What is the issue with the application?

A. PORT command disallowed

B. data connection failing

C. LIST command disallowed

D. command connection failing

Correct Answer: B

Question 4

A device on the network is configured with the same IP address as the management address of the active LTM device, causing the management GUI to be inaccessible.
Which two methods should the LTM Specialist use to access the LTM device in order to change the management IP address? (Choose two.)

A. Connect via ssh to the management address.

B. Connect to the LTM device via serial connection.

C. Connect a monitor and keyboard to the LTM device.

D. Connect via ssh to the standby unit and connect via ssh across the serial link between the devices.

E. Connect via ssh to the AOM IP address.

Correct Answer: B,E

Question 5

An LTM device is running BIG-IP v10.2.0 software. The LTM Specialist is tasked with upgrading the LTM device to BIG-IP v11.2.0 HF1. The LTM Specialist starts the upgrade process by selecting the uploaded Hotfix and installing to an unused volume. After 10 minutes,the LTM Specialist checks the status of the upgrade process and notices that the process is stalled at 0%.
What should the LTM Specialist verify?

A. the LTM device has been restarted into maintenance mode

B. the LTM device has an available Internet connection via the management interface

C. the selected volume has sufficient space available

D. the base software version exists on the LTM device

Correct Answer: D

Question 6

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_REQUEST {
if {[HTTP::host] equals "www.example.*" }{
HTTP::redirect "http://www.example.net" }
}

B. when HTTP_REQUEST {
if {[HTTP::host] equals "www.example.com" }{
HTTP::redirect "http://www.example.net" }
}

C. when HTTP_DATA {
if {[HTTP::host] equals "www.example.*" }{
HTTP::redirect "http://www.example.net" }
}

D. when HTTP_RESPONSE {
if {[HTTP::host] equals "www.example.com" }{
HTTP::redirect "http://www.example.net" }
}

Correct Answer: B

Question 7

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Refer to the exhibits.
Users are able to access the application when connecting directly to the web server but are unsuccessful when connecting to the virtual server. Return traffic bypasses the LTM device using Layer 2 nPath routing.
Which configuration change resolves this problem?

A. Enable a SNAT pool on the LTM device.

B. Configure the virtual server to listen on port 80 on the LTM device.

C. Disable address translation on the LTM device.

D. Configure a route on the web server to the client subnet.

E. Configure the VIP address on the loopback interface of the web server.

Correct Answer: E

Question 8

A web application sends information about message integrity and content life time to the client.
Which two HTTP headers should be used in sending the client information? (Choose two.)

A. Content-Length

B. Content-Range

C. Content-MD5

D. Expires

E. Expect

F. ETag

Correct Answer: C,D

Question 9

Which two subsystems could the LTM Specialist utilize to access an LTM device with lost management interface connectivity? (Choose two.)

A. ALOM

B. AOM

C. ILO

D. SCCP

Correct Answer: B,D

Question 10

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Refer to the exhibits.
A virtual server has been configured for SSL offload on a single-arm network. On average, the virtual server will be handling 100,000 connections, with a peak of 130,000 connections. Between the virtual server and the web servers there is a single reverse proxy to provide site caching. The proxy is configured to perform source IP persistence before contacting the web servers. The site is logging users out immediately after logging them in.
What should the LTM Specialist do to resolve this issue?

A. Create an iRule to add client IP persistence to a SNAT pool member.

B. Change the virtual server server-side TCP profile to tcp-lan-optimized.

C. Configure the virtual server HTTP profile to insert an X-Forwarded-For header.

D. Add a source address persistence profile to the virtual server.

Correct Answer: A

Question 11

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
Which step should an LTM Specialist take next to finish upgrading to HD1.3?

A. Install image to HD1.3

B. Relicense HD1.3

C. Install hotfix to HD1.3

D. Activate HD1.3

Correct Answer: D

Question 12

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 checksum tmsh install sys software hotfix <hotfix_name>.iso volume <volume_name>

B. import the hot fix to the /shared/images directory check the integrity of the file with an md5 checksum tmsh install sys software hotfix <hotfix_name>.iso volume <volume_name>

C. import the hot fix to the /shared/images directory check the integrity of the file with an md5 checksum tmsh apply sys software hotfix volume <volume_name> <hotfix_name>.iso

D. import the hot fix to the /var/shared/images directory check the integrity of the file with an md5 checksum tmsh apply sys software hotfix volume <volume_name> <hotfix_name>.iso

Correct Answer: B

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F5 LTM Specialist: Maintain & Troubleshoot (301b) Free Practice Test