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301a BIG-IP LTM Specialist: Architect Set-Up & Deploy Questions and Answers

Questions 4

An LTM Specialist regularly provides analytics reports that show that traffic generated by different subnets within the organization. The LTM Specialist needs show the associate department names next the IP addresses in the reports.

Which step should the LTM Specialist take to meet this requirement?

Options:

A.

use an iRule to change the output of the report

B.

export the report and add the department names manually

C.

create VLANs for each subnet and set the name accordingly

D.

define active subnets and assign a name to certain subnets

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Questions 5

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

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Questions 6

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

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Questions 7

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

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Questions 8

Refer to the exhibit

Given the bigip conf extract shown where the servers only talk http on port 80, which node will receive the next user request?

Options:

A.

72.10.1.1

B.

10.1.1.1

C.

10.1.1.2 0

D.

10.1.1.3

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Questions 9

When importing a PEM formatted SSL certificate, which text needs to appear first in the file?

Options:

A.

--START CERTIFICATE....

B.

...BEGIN CERTIFICATE....

C.

...SECURITY CERTIFICATE....

D.

...SSL CERTIFICATE....

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Questions 10

The picture belongs to static content, you can configure static content cache in FS to meet this demand

An LTM Specialist must configure session persistence for a highly available, highly utilized web-based application.

* The following requirements are provided:

* http proxy setup for security

persistence information available to the HA peer in case of failover

The LTM Specialist needs to minimize additional burden on the LTM device to the greatest extent possible.

Which persistence profile should be used?

Options:

A.

Cookie insert

B.

Universal

C.

Source Address Affinity

D.

Destination Address Affinity

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Questions 11

An LTM Specialist configures a new HTTPS virtual server that contains a valid example.com ssl certificate. The LTM Special receives an error in the browser when connecting.

What must be added to the SSL Client profile to fix this issue?

Options:

A.

A sell-sign certificate

B.

A new example com certificate

C.

An intermediate certificate

D.

A public root certificate

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Questions 12

An HA pair of LTM devices that load balance multiple HTTPS applications utilizes highly customized RAM Cache and compression profiles on each virtual server. The LTM Specialist who is administering the HA pair regularly observes entines in the log similar to the following:

tmm tmm I708S1 011e0002.4. sweeper_update: aggressive mode activated (117504/138240 pages)

No DoS attacks arc occurring. No user problems have been reported. Which step should the LTM Specialist take to help mitigate the issue?

Options:

A.

change the Adaptive Reaping High watermark

B.

change the Adaptive Reaping Low watermark

C.

allocate less memory to the RAM cache feature

D.

use a OneConnect profile

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Questions 13

An LTM device receives a response string containing "error"

Which monitor type and parameter will mark the HTTP server as down?

Options:

A.

HTTP monitor, Receive String "error", and set the Reverse option to Yes

B.

HTTP monitor and Receive String "error'' ... flag is up

C.

HTTP monitor. Receive String "down", and set the Reverse option to Yes .... flag is

D.

HTTP monitor and Receive Disable String "error'' .... flag is disable

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Questions 14

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

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Questions 15

Refer to the exhibit.

The http monitor is applied to a pool All members are enabled One pool member stops responding TCP port 80. The server still responds to ping.

What is the resulting status of this pool member?

Options:

A.

Available (Enabled)

B.

Offline (Disabled)

C.

Unavailable (Disabled)

D.

Unknown (Enabled)

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Questions 16

A custom TCP application using a single server is being migrated to the LTM device. A server is being added to the pool. The application is known to violate the TCP protocol RFC. The application currently works without error from a user perspective.

Which virtual server type is appropriate in this situation?

Options:

A.

Stateless TCP protocol is not applicable

B.

Performance (Layer 4)-pure layer A forwarding

C.

forwarding (Layer 2) pure routing forwarding, pool cannot be specified

D.

Standard-tcp profile exists, RFC verification will be performed

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Questions 17

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

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Questions 18

An LTM Specialist upgrades the switching infrastructure and the backend servers on the LAN segments.

The LTM Specialist notices a 20% memory usage increase on the BIG-IP device while handling the same number of concurrent connections.

A comparison of statistics pre-upgrade and post-upgrade shows a significant reduction on the following:

-RTT between the BIG-IP device and the backend servers

-Packet drops in the switch

Time to First Byte (TTFB)

The LTM Specialist is concerned with the scalability of the number of concurrent connections with the new memory usage.

Which setting should be changed to reduce the memory usage on the BIG-IP device?

Options:

A.

Reduce the proxy buffer high setting on the server-side TCP profile

B.

Increase the receive window of the client-side TCP profile

C.

Increase the proxy buffer high setting on the server-side TCP profile

D.

Reduce the idle of the client-side TCP profile

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Questions 19

An LTM Specialist plans to enable connection mirroring for a virtual server in an HA environment.

What must the LTM Specialist consider before implementing the configuration change?

Options:

A.

Impact on system performance that might be noticeable

B.

The add-on license that is required for this feature to be available

C.

Creating the required separate interface for connection mirroring

D.

Decreased number of possible concurrent connections to that virtual server

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Questions 20

Six servers have a varying number of connections that change based on the user load.

Which load balancing method should an LTM Specialist apply to divided the web application traffic to the servers on the relative performance trend?

Options:

A.

Least Sessions

B.

Least Connections

C.

Predictive

D.

Ratio

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Questions 21

An application is sensitive to packet loss and unexpected session termination. A pair of LTM devices is configured in an Active/Standby high availability configuration. SNATS are NOT used and the virtual server contains a Universal Persistence profile.

which two actions must an LTM Specialist take to ensure the sessions are maintained between the client and server during an LTM device failover event while maintaining maximum uptime? (Choose two.)

Options:

A.

configure a serial failover cable for mirror traffic

B.

configure a OneConnect profile to mirror connections

C.

configure a VLAN and primary mirroring address for mirror traffic

D.

enable Mirroring for a virtual server and persistence profile

E.

enable Clone Pools for a virtual server and a persistence profile

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Questions 22

A new web application is being deployed Mutual SSL authentication must be used to authenticate clients.

Which of the following two tasks must be completed to meet the requirements? (Choose two)

Options:

A.

configure the server SSL profile with "Client Certificate" Set to require

B.

configure the client SSL profile with "Client Certificate" set to require

C.

instruct the desktop team to update the web browser to the most recent release

D.

generate a CSR to register a certificate with the CA

E.

configure the client SSL profile with the Trusted .Certificate Authorities

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Exam Code: 301a
Exam Name: BIG-IP LTM Specialist: Architect Set-Up & Deploy
Last Update: Nov 22, 2024
Questions: 147
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