301b Exam Question 171

An IT administrator wants to log which server is being load balanced to by a user with IP address
10.10.10.25.
Which iRule should the LTM Specialist use to fulfill the request?
  • 301b Exam Question 172

    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?
  • 301b Exam Question 173

    A failover event is recorded in the log messages:
    Jan 01 00:00:50 BIG-IP notice sod[5855]: 01140029:5: HA proc_running tmm fails action is go offline and down links.
    Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0050:5: Sod requests links down.
    Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0054:5: Offline for traffic group /Common/traffic-group-1.
    Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c003e:5: Offline
    Jan 01 00:00:50 BIG-IP notice logger: /usr/bin/tmipsecd --tmmcount 4 ==> /usr/bin/bigstart stop racoon Jan 01 00:00:50 BIG-IP info lacpd[5502]: 01160016:6: Failover event detected. (Switchboard failsafe disabled while offline)
    Jan 01 00:00:51 BIG-IP err bcm56xxd[5296]: 012c0010:3: Failover event detected. Marking external interfaces down. bsx.c(3633)
    Jan 01 00:00:51 BIG-IP info bcm56xxd[5296]: 012c0015:6: Link: 1.1 is DOWN Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143c:5: Connection to CMI peer 10.0.0.3 has been removed
    Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143a:5: CMI reconnect timer: enabled Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 01071431:5: Attempting to connect to CMI peer 10.0.0.3 port
    6699
    What is the cause of the failover?
  • 301b Exam Question 174

    -- Exhibit -

    -- Exhibit -
    Refer to the exhibit.
    A company uses a complex piece of client software that connects to one or more virtual servers (VS) hosted on an LTM device. The client software is experiencing issues. An LTM Specialist is tasked with finding the cause of the problem.
    The LTM Specialist has the tcpdump extract and knows the client software has at least one connection to a VS on port 1990. However, when a tcpdump runs on the internal VLAN, there is no record of port 1990 in the tcpdump.
    Why is there no record of port 1990 in the tcpdump?
  • 301b Exam Question 175

    A virtual server for a set of web services is constructed on an LTM device. The LTM Specialist has created an iRule and applied this iRule to the virtual server:
    when HTTP_REQUEST {
    switch [HTTP::uri] {
    "/WS1/ws.jsp" {
    log local0. "[HTTP::uri]-Redirected to JSP Pool"
    pool JSP
    }
    default { log local0. "[HTTP::uri]-Redirected to Non-JSP Pool"
    pool NonJSP
    }
    }
    }
    However, the iRule is NOT behaving as expected. Below is a snapshot of the log:
    /WS1/ws.jsp-Redirected to JSP Pool
    /WS1/ws.jsp-Redirected to JSP Pool
    /WS1/ws.jsp-Redirected to JSP Pool
    /WS1/WS.jsp-Redirected to Non-JSP Pool
    /ws1/WS.jsp-Redirected to Non-JSP Pool
    /WS1/ws.jsp-Redirected to JSP Pool
    /ws1/ws.jsp-Redirected to Non-JSP Pool
    What is the problem?