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Pass F5 Networks Certification Study Materials 301b Exam With 210 Questions
NEW QUESTION 10
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 11
A stand-alone LTM device is to be paired with a second LTM device to create an active/standby pair. The current stand-alone LTM device is in production and has several VLANs with floating IP addresses configured. The appropriate device service clustering (DSC) configurations are in place on both LTM devices.
Which two non-specific DSC settings should the LTM Specialist configure on the second LTM device to ensure no errors are reported when attempting to synchronize for the first time? (Choose two.)
- A. VLANs
- B. default route
- C. self IP addresses
- D. pools
Answer: A,C
NEW QUESTION 12
-- 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 13
-- Exhibit-
-- Exhibit -
Refer to the exhibit.
An LTM Specialist creates a virtual server to load balance traffic to a pool of HTTPS servers. The servers use client certificates for user authentication. The virtual server has clientssl, serverssl, and http profiles enabled. Clients are unable to connect to the application through the virtual server, but they are able to connect to the application servers directly.
Which change to the LTM device configuration will resolve the problem?
- A. Install the server certificate/key and enable Proxy SSL.
- B. Install the client's issuing Certificate Authority certificate on the LTM device.
- C. Use the serverssl-insecure-compatible serverssl profile.
- D. Configure the clientssl profile to require a client certificate.
Answer: A
NEW QUESTION 14
-- Exhibit- -- Exhibit -
Refer to the exhibits.
Users are able to access the application when connecting to the virtual server but are unsuccessful when connecting directly to the application servers. The LTM Specialist wants to allow direct access to the application servers.
Why are users unable to connect directly to the application servers?
- A. The router does NOT have a route to the server subnet.
- B. The LTM device does NOT have a SNAT on the External VLAN.
- C. The LTM device does NOT have an IP Forwarding virtual server on the Internal VLAN.
- D. The web server does NOT have a correct default gateway.
- E. The LTM device does NOT have an IP Forwarding virtual server on the External VLAN.
Answer: D
NEW QUESTION 15
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 16
-- Exhibit -
-- Exhibit --
Refer to the exhibits.
An LTM device has been configured for load balancing a number of different application servers.
Configuration changes need to be made to the LTM device to allow administrative management of the servers in 172.16.10/24, 172.16.20/24, and 172.16.30/24 networks. The servers require outbound access to numerous destinations for operations.
Which solution has the simplest configuration changes while maintaining functionality and basic security?
- A. Remove 172.16.10.0:0/24, 172.16.20.0:0/24, and 172.16.30.0:0/24, and keep 0.0.0.0:0/0.0.0.0 enabled on all VLANs.
- B. Enable 172.16.10.0:0/24, 172.16.20.0:0/24, and 172.16.30.0:0/24 on egress VLAN(s), and enable
0.0.0.0:0/0.0.0.0 on ingress VLAN(s). - C. Replace 172.16.10.0:0/24, 172.16.20.0:0/24, and 172.16.30.0:0/24, with 172.16.0.0:0/16, and keep
0.0.0.0:0/0.0.0.0. - D. Enable 172.16.10.0:0/24, 172.16.20.0:0/24, and 172.16.30.0:0/24 on ingress VLAN(s), and enable
0.0.0.0:0/0.0.0.0 on egress VLAN(s).
Answer: D
NEW QUESTION 17
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 18
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. UDP IP ToS
- C. The pool has Reselect Retries set to 0.
- D. TCP idle timeout
Answer: D
NEW QUESTION 19
In preparation for a maintenance task, an LTM Specialist performs a "Force to Standby" on LTM device Unit 1. LTM device Unit 2 becomes active as expected. The maintenance task requires the reboot of Unit 1. Shortly after the reboot is complete, the LTM Specialist discovers that Unit 1 has become active and Unit 2 has returned to standby.
What would cause this behavior?
- A. A traffic group is configured with Auto Failback, and Unit 1 is the default device.
- B. Unit 1 is set with the redundancy state preference of active in devices groups.
- C. Unit 1 is set with the redundancy state preference of active in high availability.
- D. A device group is configured with Auto Failback, and Unit 1 is the default device.
Answer: A
NEW QUESTION 20
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
Which step should an LTM Specialist take next to finish upgrading to HD1.3?
- A. Install hotfix to HD1.3
- B. Activate HD1.3
- C. Install image to HD1.3
- D. Relicense HD1.3
Answer: B
NEW QUESTION 21
Which command line interface command will check if the BIG-IP platform contains a packet velocity ASIC (PVA)?
- A. tmsh show /sys hardware pva status
- B. bigpipe platform show | grep -i pva
- C. tmsh show /ltm hardware | grep -i pva
- D. tmsh show /sys hardware | grep -i pva
Answer: D
NEW QUESTION 22
These log entries can have different root causes:
Jun 28 05:01:21 LTM_A notice mcpd[27545]: 0107143a:5: CMI reconnect timer: enabled
Jun 28 05:01:21 LTM_A notice mcpd[27545]: 01071431:5: Attempting to connect to CMI peer
1.1.1.2 port 6699
Jun 28 05:01:21 LTM_A notice mcpd[27545]: 01071432:5: CMI peer connection established to
1.1.1.2 port 6699
Jun 28 05:01:26 LTM_A notice mcpd[27545]: 0107143a:5: CMI reconnect timer: disabled, all peers are connected
Which two commands should be used to obtain additional information on these entries? (Choose two.)
- A. tmsh show /sys mcpd
- B. bigstart status mcpd
- C. tmsh modify /sys db log.mcpd.level value debug
- D. tmsh modify /sys db log.cmi.level value debug
Answer: B,C
NEW QUESTION 23
A BIG-IP Operator has made a grave error and deleted a few virtual servers on the active LTM device fronting the web browsing proxies. The BIG-IP Operator has NOT yet performed a configuration sync.
Which command should the LTM Specialist execute on the active LTM device to force a failover to the standby node and restore web browsing?
- A. tmsh /sys failover standby
- B. tmsh run /sys failover standby
- C. tmsh run /sys failover status standby
- D. tmsh /sys failover status standby
Answer: B
NEW QUESTION 24
-- 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 25
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
An LTM Specialist is upgrading the LTM devices.
Which device should be upgraded first?
- A. Device D
- B. Device B
- C. Device A
- D. Device C
Answer: D
NEW QUESTION 26
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "Unable to connect" in the browser, although connections directly to the pool member show the application is functioning correctly. The LTM device configuration is:
ltm virtual /Common/vs_https { destination /Common/10.10.1.110:443 ip-protocol udp mask 255.255.255.255 pool /Common/pool_https profiles { /Common/udp { } } translate-address enabled translate-port enabled vlans-disabled }
ltm pool /Common/pool_https { members { /Common/172.16.20.1:443 { address 172.16.20.1 } } }
What issue is the LTM Specialist experiencing?
- A. The pool member is marked down administratively.
- B. The virtual server is configured for the incorrect protocol.
- C. The pool member is marked down by a monitor.
- D. The virtual server is disabled on all VLANs.
Answer: B
NEW QUESTION 27
Which iRule will instruct the client's browser to avoid caching HTML server responses?
- A. when HTTP_RESPONSE {
if {[HTTP::header Content-Type] contains "html"} {
HTTP::header insert Pragma "no-cache"
HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT"
HTTP::header replace Cache-Control "no-cache,no-store,must-revalidate"
}
} - B. when HTTP_RESPONSE {
if {[HTTP::header Content-Type] equals "html"} {
HTTP::header insert Pragma "no-cache"
HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT"
HTTP::header replace Cache-Control "no-cache,no-store,must-revalidate"
}
} - C. when HTTP_REQUEST {
if {[HTTP::header Content-Type] contains "html"} {
HTTP::header insert Pragma "no-cache"
HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT"
HTTP::header replace Cache-Control "no-cache,no-store,must-revalidate"
}
} - D. when HTTP_REQUEST {
if {[HTTP::header Content-Type] equals "html"} {
HTTP::header insert Pragma "no-cache"
HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT"
HTTP::header replace Cache-Control "no-cache,no-store,must-revalidate"
}
}
Answer: A
NEW QUESTION 28
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "Unable to connect" in the browser, although connections directly to the pool member show the application is functioning correctly. The LTM configuration is:
ltm virtual /Common/vs_https { destination /Common/10.10.1.110:443 ip-protocol udp mask 255.255.255.255 pool /Common/pool_https profiles { /Common/udp { } } translate-address enabled translate-port enabled vlans-disabled }
ltm pool /Common/pool_https { members { /Common/172.16.20.1:443 { address 172.16.20.1 } } }
How should the LTM Specialist resolve this issue?
- A. Remove an HTTP monitor from the pool.
- B. Enable the pool member on the correct VLAN.
- C. Add an HTTP profile to the virtual server.
- D. Select the correct protocol for the virtual server.
Answer: D
NEW QUESTION 29
......
Exam Blueprint
As was mentioned above, the F5 301B-LTM Specialist: Maintain and Troubleshoot test is the 2nd one in the series that the professional needs to pass to complete his or her F5-CTS, LTM certification. This exam verifies that candidates are able to perform basic F5 product designing and implementation tasks while knowing how to improve the efficacy of the Application Delivery Network. The score comes with two-year validity and requires one to get recertified before the expiration date.
All the F5 exams follow almost the same pattern. F5 301B is 90-minute long and consists of 80 questions. Out of these, only 70 are scored and the remaining 10 are beta or pilot items. The test is computer-based and the questions are mostly provided in the multiple-choice format while some of the tasks may be of the scenario-based type. The passing score is 245 out of 350. Finally, the registration fee is $180, excluding the local taxes.
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