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Questions # 11:

An organization’s development team creates an application to put behind the F5 LTM device. The application can be quite load intensive at first, and then evens out over time. The team’s load balancing method needs to select a pool after taking into account the pool member’s response over the time to avoid landing on a busy pool member.

Which of the following load balancing methods meets this requirement?

Options:

A.

Fastest (application)

B.

Predictive (member)

C.

Dynamic (node)

D.

Observed (member)

Expert Solution
Questions # 12:

Exhibit.

Question # 12

The server team has recently configured the three new DNS servers shown for the data center. No current DNS servers are currently configured on the LTM device.

Which command should be used to configure the LTM device to use the new DNS servers?

Options:

A.

tmsh create/systins name-servers add {192 168.1.2.192.168.100.1O0.192.168.2O0.2OO}

B.

tmsh change /sysdns name-servers add {192.168.1.2.192.168.100.100.192.168.200.200}

C.

tmsh modify/sysdns name-servers add {192.168.1.2.192.168.100.100.192.168.200.200}

D.

tmsh set/sysdns name-servers add {192.168.2.192.168.100.100.192.168.200.200}

Expert Solution
Questions # 13:

An LTM Administrator receives an email from the NOC stating that the switch connected to the backend server was shut down for maintenance. The BIG-IP device handles only UDP traffic. The BIG IP device did not fail over to a DR location when no pool members were available.

When the LTM Administrator checks the pool, it confirms that the monitor is still marking UP the pool member.

A tcpdump of the traffic shows the following output:

Question # 13

A list of the monitor configuration shows the following:

Question # 13

Which two modifications to the LTM configuration will mark this pool member down, when the switch is down? (Choose two.)

Options:

A.

increase the timeout to three times the interval

B.

add a reverse string to the game monitor

C.

enable reverse and wait for the next connection

D.

also assign a gatewayjcmp monitor to the pool

E.

enable manuai-resume on the same monitor

Expert Solution
Questions # 14:

An LTM Specialist to configure a backend server to be disabled it takes longer than 30 seconds to respond to a request.

Which values should the LTM Specialist enter for interval and timeout?

Options:

A.

Interval 10, timeout 30

B.

Interval 10, timeout 31

C.

Interval 30, timeout 30

D.

Interval 30, timeout 91

Expert Solution
Questions # 15:

An LTM Specialist needs to force only FTP traffic, sourced from subnet 10.10.10.0/24 to virtual server 10.10.20.1 to the new FTP1 server. The following virtual servers are configured on the LTM device:

Traffic sourced from 10.10.10/24 must use the specific pool member for load balancing.

Which configuration change is needed to meet the requirements?

Options:

A.

Create a new virtual server for traffic sourced from 10.10.10.0/24 on port 80 that is destined to 10.10.20.1/32, and create a new pool has only the pool member FTP1 defined.

B.

Add FTP1 to the pool assigned to the MyVS4 virtual server, and remove all other pool members from the pool.

C.

Create a new virtual server for traffic sourced from 10.10.10.0/24 on traffic sourced from 10.10.10./24 on port 21 that is destined to 10.10.20.1/32, and create a new pool that has only the pool member FTP1 defined.

D.

Add FTP1 to the pool assigned to the MyVS2 virtual server, and remove all other pool member from the pool.

Expert Solution
Questions # 16:

An LTM Specialist observes decreased performance and intermittent connection reap LTM system.

Question # 16

Based on the configuration, which action will address these issues?

Options:

A.

Use an optimized TCP profile.

B.

Use a FastL4 profile on the virtual server

C.

Use a default caching profile on the virtual server.

D.

Use a shorter idle timeout on the TCP profile.

Expert Solution
Questions # 17:

AN LIM Specialist must upgrade the VCMP Guest active/standby LTM pair from version 11.3 to 11.5.3 on two VCMP Hosts.

where should the LTM Specialist import the latest 11.5.3 ISO images?

Options:

A.

to the primary VCMP Host and the active Guest instance

B.

to both VCMP Hosts

C.

to the secondary vCMP Host and the standby Guest instance

D.

to the VCMP Guest instances

Expert Solution
Questions # 18:

An LTM Specialist needs to create an iRule that creates persistence records based on a JSESSIONID cookie. If a persistence record already exists, then the iRule must persist the client connection according to the existing record.

Which persistence profile enables the iRule to meet these requirements?

Options:

A.

Universal

B.

SSL

C.

Destination Address Affinity

D.

Cookie

E.

Source Address Affinity

Expert Solution
Questions # 19:

An application is expected to maintain more than 100,000 concurrent TCP connections to a single pool member.

What is an appropriate SNAT configuration in this situation?

Options:

A.

A SNAT pool with 4 IP addresses

B.

SNAT automap enabled

C.

A static SNAT

D.

A SNAT pool with IP address

Expert Solution
Questions # 20:

Exhibit.

Question # 20

Webserver_pool consists of 6 members. phpAuction_80_pool consists of 2 members LTM1 is the current Active member.

LTM1 loses connectivity to 3 of the 6 members in the webserver_pool LTM2 still has connectivity to all

servers.

What is the expected failover behavior?

Options:

A.

LTM1 Standby / LTM2 Standby

B.

LTM1 Active /LTM2 Active

C.

LTM1 Active / LTM2 Standby

D.

LTM1 Standby / LTM2 Active

Expert Solution
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