F5 F5 Certifications F50-531 Questions & Answers

• Question 61:

  Which two methods can be used to determine which BIG-IP is currently active? (Choose two.)

  A. The bigtop command displays the status.

  B. Only the active system's configuration screens are active.

  C. The status (Active/Standby) is embedded in the command prompt.

  D. The ifconfig -a command displays the floating addresses on the active system.

  Correct Answer: AC

• Question 62:

  As a part of the Setup Utility, the administrator sets the host name for the BIG-IP. What would be the result if the two systems in a redundant pair were set to the same host name?

  A. Host names do not matter in redundant pair communication.

  B. In a redundant pair, the two systems will always have the same host name. The parameter is synchronized between the systems.

  C. The first time the systems are synchronized the receiving system will be assigned the same self-IP addresses as the source system.

  D. When the administrator attempts to access the configuration utility using the host name, they will always connect to the active system.

  Correct Answer: C

• Question 63:

  When network fail-over is enabled, which of the following is true?

  A. The fail-over cable status is ignored. Fail-over is determined by the network status only.

  B. Either a network failure or loss of voltage across the fail-over cable will cause a fail-over.

  C. A network failure will not cause a fail-over as long as there is a voltage across the fail-over cable.

  D. The presence or absence of voltage over the fail-over cable takes precedence over network fail-over.

  Correct Answer: C

• Question 64:

  Where is connection mirroring configured?

  A. It an option within a TCP profile.

  B. It is an optional feature of each pool.

  C. It is not configured; it is default behavior.

  D. It is an optional feature of each virtual server.

  Correct Answer: D

• Question 65:

  Which statement is true regarding fail-over?

  A. Hardware fail-over is disabled by default.

  B. Hardware fail-over can be used in conjunction with network failover.

  C. If the hardware fail-over cable is disconnected, both BIG-IP devices will always assume the active role.

  D. By default, hardware fail-over detects voltage across the fail-over cable and monitors traffic across the internal VLAN.

  Correct Answer: B

• Question 66:

  Where is persistence mirroring configured?

  A. It is always enabled.

  B. It is part of a pool definition.

  C. It is part of a profile definition.

  D. It is part of a virtual server definition.

  Correct Answer: C

• Question 67:

  Which statement is true concerning SNAT's using auto-map?

  A. Only specified self-IP addresses are used as automap addresses.

  B. SNATs using automap will translate all client addresses to an automap address.

  C. A SNAT using automap will preferentially use a floating self-IP over a non-floating self-IP.

  D. A SNAT using automap can be used to translate the source address of all outgoing traffic to the same address regardless of which VLAN the traffic is sent through.

  Correct Answer: C

• Question 68:

  Which two statements are true about NATs? (Choose two.)

  A. NATs support UDP, TCP, and ICMP traffic.

  B. NATs can be configured with mirroring enabled or disabled.

  C. NATs provide a one-to-one mapping between IP addresses.

  D. NATs provide a many-to-one mapping between IP addresses.

  Correct Answer: AC

• Question 69:

  Which statement describes a typical purpose of iRules?

  A. iRules can be used to add individual control characters to an HTTP data stream.

  B. iRules can be used to update the timers on monitors as a server load changes.iRules can be used to update the timers on monitors as a server's load changes.

  C. iRules can examine a server response and remove it from a pool if the response is unexpected iRules can examine a server's response and remove it from a pool if the response is unexpected.

  D. iRules can be used to look at client requests and server responses to choose a pool member to select for load balancing.

  Correct Answer: A

• Question 70:

  A virtual server is listening at 10.10.1.100:80 and has the following iRule associated with it: when HTTP_REQUEST { if { [HTTP::header User-Agent] contains "MSIE" } { pool MSIE_pool } else { pool Mozilla_pool } If a user connects to http://10.10.1.100/foo.html and their browser does not specify a User-Agent, which pool will receive the request?

  A. MSIE_pool

  B. Mozilla_pool

  C. None. The request will be dropped.

  D. Unknown. The pool cannot be determined from the information provided.

  Correct Answer: B