301b無料問題集「F5 LTM Specialist: Maintain & Troubleshoot」

質問 1

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
A user is unable to access an HTTP application via a virtual server.
What is the cause of the failure?

（A）The Connection: Keep-Alive header is set.

（B）The virtual server is in the disabled state.

（C）The host header requires a host name.

（D）There is no pool member available to service the request.

正解：D 解答を投票する

質問 2

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
A pair of LTM devices is configured for HA.
What happens if the pool member server with IP address 10.0.0.4 becomes totally
unresponsive to the active LTM device, but is still responsive to the standby LTM device?

（A）The HA-group will initiate a fail-over because the HA-Group score will be zero.

（B）The HA-group will initiate a fail-over because the threshold is set to 2.

（C）The HTTP application will be unavailable via the LTM device.

（D）The HA-group will disable the trunk my_trunk.

正解：B 解答を投票する

質問 3

In preparation for a maintenance task, an LTM Specialist performs a "Force to Standby" on LTM device Unit 1. LTM device Unit 2 becomes active as expected. The maintenance task requires the reboot of Unit 1. Shortly after the reboot is complete, the LTM Specialist discovers that Unit 1 has become active and Unit 2 has returned to standby.
What would cause this behavior?

（A）Unit 1 is set with the redundancy state preference of active in devices groups.

（B）Unit 1 is set with the redundancy state preference of active in high availability.

（C）A device group is configured with Auto Failback, and Unit 1 is the default device.

（D）A traffic group is configured with Auto Failback, and Unit 1 is the default device.

正解：D 解答を投票する

質問 4

A web application requires knowledge of the client's true IP address for logging and analysis purposes. Instances of the application that can decode X-Forwarded-For HTTP headers reside in pool_a, while pool_b instances assume the source IP is the true address of the client.
Which iRule provides the proper functionality?

（A）when HTTP_REQUEST { if {[HTTP::header exists X-Forwarded-For]}{ pool pool_a } else { pool pool_b } }

（B）when HTTP_RESPONSE {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
} }

（C）when HTTP_OPEN { if {[HTTP::header exists X-Forwarded-For]}{ pool pool_a } else { pool pool_b } }

（D）when HTTP_DATA {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
}
}

正解：A 解答を投票する

質問 5

-- Exhibit-

-- Exhibit -Refer to the exhibit.
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "The connection was reset" in the browser. Connections directly to the pool member show the application is functioning correctly.
What is the issue?

（A）The virtual server is configured with the incorrect SNAT address.

（B）The virtual server is processing encrypted traffic as plain-text HTTP.

（C）The pool member default gateway is set incorrectly.

（D）The pool member is failing the monitor check.

正解：B 解答を投票する

質問 6

An LTM device is load balancing telnet and ssh applications in a client/server environment experiencing significant packet delay.
Which setting in the TCP profile should reduce the amount of packet delay?

（A）disable Bandwidth Delay

（B）enable Proxy Maximum Segment

（C）increase Maximum Segment Retransmissions

（D）disable Nagle's Algorithm

正解：D 解答を投票する

質問 7

-- Exhibit-

-- Exhibit -Refer to the exhibit.
An LTM Specialist is troubleshooting an HTTP monitor that is marking a pool member as down. Connecting to the pool member directly through a browser shows the application is up and functioning correctly.
ltm monitor http http_mon { defaults-from http destination *:* interval 5 recv "200 OK" send "GET /\\r\\n" time-until-up 0 timeout 16 }
What is the issue?

（A）The request is NOT being received by the pool member.

（B）The pool member is responding with a 404.

（C）The HTTP headers are compressed.

（D）The pool member is responding without HTTP headers.

正解：D 解答を投票する

質問 8

-- Exhibit- -- Exhibit -

Refer to the exhibit.
An LTM Specialist is troubleshooting a new HTTP monitor on a pool. The pool member is functioning correctly when accessed directly through a browser. However, the monitor is marking the member as down. The LTM Specialist captures the monitor traffic via tcpdump.
What is the issue?

（A）The server is marking the connection as closed.

（B）The pool member is rejecting the monitor request.

（C）The monitor request is NOT returning the page body.

（D）The 'time-until-up' setting on the monitor is incorrect.

正解：C 解答を投票する

質問 9

-- Exhibit-

-- Exhibit -Refer to the exhibit.
An HTTP monitor always marks the nodes in the pool as down. The monitor's definition and the HTTP headers from the monitor request and response are provided.
What is the issue?

（A）The monitor is NOT configured to follow the redirect.

（B）The response is compressed.

（C）The send string is incorrect.

（D）The monitor timeout is too short.

正解：C 解答を投票する

質問 10

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
Which two items can be consolidated to simplify the LTM configuration? (Choose two.)

（A）/Common/vs2-https-redirect

（B）/Common/vs3-https-redirect

（C）/Common/vs4-https-redirect

（D）/Common/vs5-https-redirect

（E）/Common/vs1-https-redirect

正解：C、E 解答を投票する

質問 11

-- Exhibit-

-- Exhibit -
Refer to the exhibit.
A pair of LTM devices are deployed in a high-availability (HA) pair as the diagram shows. After inserting a new rule on the firewalls, the LTM devices become Standby. The rule drops alloutbound sessions to the Internet. Only inbound connections are allowed from the Internet. There are no other changes to the environment.
What triggered the LTM device failover?

（A）Auto Failback

（B）VLAN Failsafe

（C）HA Group

（D）Gateway Failsafe

正解：D 解答を投票する

質問 12

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
Which step should an LTM Specialist take to utilize AVR?

（A）reboot the device

（B）provision AVR

（C）install the AVR add-on

（D）license the device for AVR

正解：B 解答を投票する

301b 無料問題集「F5 LTM Specialist: Maintain & Troubleshoot」

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