F5 F5 Certifications 301B Questions & Answers

• Question 71:

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  Which profile could be removed or changed on this virtual server to reduce CPU load on the LTM device without increasing server side bandwidth usage?

  A. tcp

  B. http

  C. httpcompression

  D. optimized-caching

  Correct Answer: C

• Question 72:

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  An LTM Specialist is upgrading the LTM devices.

  Which device should be upgraded first?

  A. Device A

  B. Device B

  C. Device C

  D. Device D

  Correct Answer: C

• Question 73:

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  Which two items can be consolidated to simplify the LTM configuration? (Choose two.)

  A. /Common/vs1-https-redirect

  B. /Common/vs2-https-redirect

  C. /Common/vs3-https-redirect

  D. /Common/vs4-https-redirect

  E. /Common/vs5-https-redirect

  Correct Answer: AD

• Question 74:

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  Which pool can be removed without affecting client traffic?

  A. ftp_pool

  B. http_pool

  C. server1_80

  D. server_pool

  Correct Answer: D

• Question 75:

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  An LTM Specialist is reviewing the 'test' partition.

  Which objects, in order, can be removed from the partition?

  A. delete pool test1_pool, delete node 10.1.1.2

  B. delete node 10.1.1.2, delete pool test2_pool

  C. delete pool test1_pool, delete node 10.1.1.2, delete node 10.1.1.1

  D. delete virtual test1_vs, delete pool test2_pool, delete node 10.1.1.1

  E. delete pool test1_pool, delete pool test2_pool, delete node 10.1.1.3

  Correct Answer: A

• Question 76:

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  An LTM Specialist is reviewing the virtual server configuration on an LTM device.

  Which two actions should the LTM Specialist perform to minimize the virtual server configuration? (Choose two.)

  A. Remove 'snat automap' from the virtual server.

  B. Remove the 'http' profile from the virtual server.

  C. Remove the 'default_class' from the virtual server.

  D. Combine 'acct_class' and 'marketing_class' into one class and update associations on the virtual server.

  E. Combine 'marketing_class' and 'default_class' into one class and update associations on the virtual server.

  Correct Answer: CD

• Question 77:

  An LTM device pair is configured for failover and connection mirroring. The LTM devices are configured with virtual servers for HTTP, HTTPS with SSL offload, and SSH. An event occurs that causes a failover. HTTP and SSH sessions active at the time of failover remain active, but HTTPS sessions are dropped.

  What is the root cause of this problem?

  A. The SSL certificates on the LTM devices do NOT match.

  B. Connection mirroring is incompatible with clientssl profiles.

  C. SNAT automap was NOT enabled for the HTTPS virtual servers.

  D. Connection mirroring was NOT enabled for the HTTPS virtual servers.

  Correct Answer: B

• Question 78:

  A failover event is recorded in the following log messages:

  Jan 01 00:56:56 BIG-IP notice mcpd[5318]: 01070727:5: Pool /Common/my-pool member /Common/10.0.0.10:80 monitor status down.

  Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0045:5: Leaving active, group score 10 peer group score 20.

  Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0052:5: Standby for traffic group /Common/traffic-group-1.

  Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0018:5: Standby

  Jan 01 00:57:06 BIG-IP notice logger: /usr/bin/tmipsecd --tmmcount 4 ==> /usr/bin/bigstart stop racoon

  What is the cause of the failover?

  A. The HA group score changed.

  B. No traffic is seen on traffic-group-1.

  C. The peer device left the traffic group.

  D. The racoon service stopped responding.

  Correct Answer: A

• Question 79:

  A device group is made up of four members: LTM-A, LTM-B, LTM-C, and LTM-D. An LTM Specialist makes a configuration change on LTM-B. Later, a different LTM Specialist notices a "changes pending" message on all devices. When logged into LTM-D, the LTM Specialist attempts to config-sync to the device group. The sync operation fails.

  Why is the LTM Specialist on LTM-D unable to synchronize the configuration to the group?

  A. The changes made on LTM-B are invalid.

  B. LTM-D has the lowest commit-id of the group.

  C. NTP is NOT configured on the devices in the group.

  D. LTM-B is the device eligible to initiate a config-sync.

  Correct Answer: D

• Question 80:

  An HA pair of LTM devices configured in Active-Standby mode stops responding to traffic and causes an outage. The Active device becomes Standby, but the partner device stays in Standby mode instead of taking over as Active. A reboot and restart of the services brings the LTM device to Active mode for a short time, but then it goes into Standby mode again.

  Which two configuration components caused this condition? (Choose two.)

  A. VLAN Fail-safe

  B. System Fail-safe

  C. Gateway Fail-safe

  D. Switch Board Failure

  E. Link down on Failover

  Correct Answer: AC