Question 1

The active LTM device in a high-availability (HA) pair performs a failover at the same time the network team

reports an outage of a switch on the network.

Which two items could have caused the failover event? (Choose two.)

Options :

A : a VLAN fail-safe setting

B : a monitor on a pool in an HA group

C :

the standby LTM that was rebooted

D : an Auditor role that has access to the GUI

E : the standby LTM that lost connectivity on the failover VLAN

Answer: A,B

Question 2

An LTM Specialist is tasked with ensuring that the syslogs for the LTM device are sent to a remote syslog

server.

The following is an extract from the config file detailing the node and monitor that the LTM device is using for

the

remote syslog server:

monitor

Syslog_15002 {

defaults from udp

dest *:15002

}

node 91.223.45.231 {

monitor Syslog_15002

screen RemoteSYSLOG

}

There seem to be problems communicating with the remote syslog server. However, the pool monitor shows

that the remote server is up.

The network department has confirmed that there are no firewall rules or networking issues preventing the

LTM device from

communicating with the syslog server. The department responsible for the remote syslog server indicates that

there may

be problems with the syslog server. The LTM Specialist checks the BIG-IP LTM logs for errors relating to the

remote syslog

server. None are found. The LTM Specialist does a tcpdump:

tcpdump -nn port 15002, with the following results:

21:28:36.395543 IP 192.168.100.100.44772 > 91.223.45.231.15002: UDP, length 19

21:28:36.429073 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 169

21:28:36.430714 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 181

21:28:36.840524 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 169

21:28:36.846547 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 181

21:28:39.886343 IP 192.168.100.100.39499 > 91.223.45.231.15002: UDP, length 144

NotE. 192.168.100.100 is the self IP of the LTM device.

Why are there no errors for the remote syslog server in the log files?

Options :

A : The -log option for tcpdump needs to be used.

B :

The monitor type used is inappropriate.

C : The "verbose" logging option needs to be enabled for the pool.

D :

When the remote syslog sever fails, it returns to service before the timeout for the monitor has expired.

Answer: B

Question 3

An LTM HTTP pool has an associated monitor that sends a string equal to 'GET /test.html'.

Which two configurations could an LTM Specialist implement to allow server administrators to disable their

pool member servers without logging into the LTM device? (Choose two.)

Options :

A :

Set monitor to transparent and ask the server team to set string ‘TRANSPARENT’ in test.html.

B :

Set ‘receive string’ equal to 'SERVER UP and ask the server team to set string ‘SERVER DOWN’ in

test.html.

C :

Set ‘alias’ equal to 'SERVER DOWN’ and ask the server team to set string ‘SERVER DOWN’ in test.html.

D : Set ‘receive disable string’ equal to 'SERVER DOWN’ and ask the server team to set string ‘SERVER DOWN’ in test.html.

E :

Set ‘disable pool member’ equal to 'SERVER UP’ and ask the server team to set string ‘SERVER DOWN’

in test.html.

Answer: B,D

Question 4

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.)

Options :

A : VLAN Fail-safe

B : System Fail-safe

C : Gateway Fail-safe

D : Switch Board Failure

E : Link down on Failover

Answer: A,C

Question 5

A device on the network is configured with the same IP address as the management address of the active LTM

device, causing the management GUI to be inaccessible.

Which two methods should the LTM Specialist use to access the LTM device in order to change the

management IP address? (Choose two.)

Options :

A : Connect via ssh to the AOM IP address.

B :

Connect via ssh to the management address.

C :

Connect to the LTM device via serial connection.

D :

Connect a monitor and keyboard to the LTM device.

E :

Connect via ssh to the standby unit and connect via ssh across the serial link between the devices.

Answer: A,C

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