Question 1

A BIG IP system load balances connections to a web application. A TCP-based Denial of Service attack against the web application is occurring, which has caused very high memory utilization on the LTM device due to stale TCP connections.

Which TCP profile option should be used to reduce memory utilization?

Options :

A : Idle timeout

B : Reset on timeout

C : Slow Start

D : Multipath TCP

Answer: A

Question 2

A design requires the LTM device to become HA standby when the one of the two physical interface on the External trunk is down the External trunk is an interface on the External VLAN

Which TMOS command enables this behavior?

Options :

A : tmsh modify net van External failsafe enabled

B : tmsh create sys ha-group External trunks add Externally

C : tmsh create sys ha-group External trunks add External threshold 2 weight 101)

D : tmsh create sys ha-group External trunks add ( External( attribute percent up-members 100))

Answer: C

Question 3

One LTM device in an HA pair of LTM devices is unable to reach its default gateway. An HA Failover event needs to happen.

Which configuration item enables this behavior?

Options :

A : iRule

B : Gateway Fail Safe

C : Gateway pool monitor

D : Gateway pool

Answer: B

Question 4

Exhibit.

Other-Image-4401f5183-2bb7-4027-a7be-479f8930a09a

An LTM Specialist needs to configure VS^HTTP and VS_DB for an online shopping site. The VS HTTP passes the client requests to the webservers. The webservers query the database servers through the VS_DB. Initially, the LTM Specialist finds the database servers directly return the packets to the webservers.

which setting must be enabled for the configuration to function correctly?

Options :

A : VS_HTTP snat auto map

B : VS.HTTP auto last hop

C : VS DB auto last hop

D : VS_DB snat auto map

Answer: C

Question 5

AN LTM Specialist receives reports that an external company application is having reliability issues. The F5 Administrator finds the following in /vat/log/ltm file.

The LTM Specialist determines that the F5 LTM device is entering into Aggressive Mode Adaptive Reaping, which is causing the site reliability issues.

What is the most likely reason that the LTM device has entered into Aggressive Mode Adaptive Reaping?

Options :

A : The LTM device exceeds licensed traffic limits.

B : The site has too many licensed modules.

C : The LTM device has not provisioned AVR

D : The site is under DDOS attack

Answer: D

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