F5 301B Online Practice Questions and Exam Preparation

F5 301B Online Questions & Answers

• Question 121:

  An LTM Specialist has just manually failed the active LTM device over to the standby LTM device. The LTM Specialist notices the newly active LTM device is NOT currently receiving traffic. The LTM Specialist verifies the newly active device

  is responding to ARP but still no traffic is hitting the virtual servers. The LTM Specialist also notices that the virtual servers eventually start responding.

  What should be added to the configuration to resolve the problem?

  A. vlan failsafe
  B. floating self IP
  C. network failover
  D. MAC masquerading
  E. connection mirroring
  D. MAC masquerading

• Question 122:

  An LTM Specialist is troubleshooting a problem on an eCommerce website. The user browses the online store using port 80, adding items to the shopping cart. The user then clicks the "Checkout" button on the site, which redirects the user to port 443 for the checkout process. Suddenly, the user's shopping cart is shown as empty. The shopping cart data is stored in memory on the server, and the default source address persistence profile is used on both virtual servers. What is the issue?

  A. The port 80 pool member is deleting the user's session cookie.
  B. The port 443 pool member is deleting the user's session cookie.
  C. The port 80 and port 443 connections are balanced to the same node.
  D. The port 80 and port 443 connections are balanced to different nodes.
  D. The port 80 and port 443 connections are balanced to different nodes.

• Question 123:

  A high-availability (HA) pair configuration uses only the hardwire serial cable connection to determine device state. A power outage occurs to the PDU powering the active unit. The standby unit takes over the active role as expected. How is the peer unit able to determine the active unit is unavailable?

  A. voltage loss on serial cable
  B. no data stream received on serial port
  C. no response on management interface
  D. no heartbeat packets received on self IPs
  A. voltage loss on serial cable

• Question 124:

  Refer to the exhibit.

  

  An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The users are receiving the FTP error "500 Illegal PORT command." The virtual server is configured to SNAT using

  automap. The LTM Specialist performs a capture on the server side of the LTM device.

  Why is the server returning this error?

  A. LIST command disallowed
  B. PORT command disallowed
  C. Active IP address in PORT command
  D. Active IP address in LOGIN command
  C. Active IP address in PORT command

  ---

  Explanation/Reference:

• Question 125:

  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. The GET request Host header field requires a host name.
  B. Incorrect syntax in send string. 'HTTP/1.1' should be 'HTTP1.1'.
  C. The /test_page.html does NOT exist on the web server and should be added.
  D. Incorrect syntax in send string. 'Connection: Close' should be 'Connection: Open'.
  C. The /test_page.html does NOT exist on the web server and should be added.

  ---

  Explanation/Reference:

• Question 126:

  A customer needs to intercept all of the redirects its application is sending to clients. When a redirect is matched, the customer needs to log a message including the client IP address. Which iRule should be used?

  A. when HTTP_RESPONSE { if { [HTTP::is_3xx] } { log local0. "redirecting client ip address [IP::addr [IP::remote_addr]]" } }
  B. when HTTP_REQUEST { if { [HTTP::is_301] } { log local0. "redirecting client ip address [IP::addr [IP::remote_addr]]" } }
  C. when HTTP_REQUEST { if { [HTTP::is_redirect] } { log local0. "redirecting client ip address [IP::addr [IP::remote_addr]]" } }
  D. when HTTP_RESPONSE { if { [HTTP::is_redirect] } { log local0. "redirecting client ip address [IP::addr [IP::remote_addr]]" } }
  D. when HTTP_RESPONSE { if { [HTTP::is_redirect] } { log local0. "redirecting client ip address [IP::addr [IP::remote_addr]]" } }

• Question 127:

  Refer to the exhibit.

  

  An administrator created a monitor to a pool member web server, which resulted in a pool member that is marked red. The administrator knows the web server is working when it is accessed from another computer. What should the administrator do to correct the problem?

  A. Change the default gateway on the server.
  B. Create a SNAT in the LTM device configuration.
  C. Change the route to the client in the LTM configuration.
  D. Change the username and/or password on the monitor.
  D. Change the username and/or password on the monitor.

  ---

  Explanation/Reference:

• Question 128:

  Which command line interface command will check if the BIG-IP platform contains a packet velocity ASIC (PVA)?

  A. bigpipe platform show | grep -i pva
  B. tmsh show /sys hardware pva status
  C. tmsh show /sys hardware | grep -i pva
  D. tmsh show /ltm hardware | grep -i pva
  C. tmsh show /sys hardware | grep -i pva

• Question 129:

  A web application is meant to log the URI of the resource that responded to the client's initial Request-URI. Which HTTP header will supply this information?

  A. Via
  B. Server
  C. Trailer
  D. Referer
  D. Referer

• Question 130:

  Refer to the exhibit.

  

  A user is unable to access an HTTP application via a virtual server. What is the cause of the failure?

  A. The host header requires a host name.
  B. The virtual server is in the disabled state.
  C. The Connection: Keep-Alive header is set.
  D. There is no pool member available to service the request.
  D. There is no pool member available to service the request.

  ---

  Explanation/Reference: