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

質問 1

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.)

（A）Set 'disable pool member' equal to 'SERVER UP' and ask the server team to set string 'SERVER DOWN' in test.html.

（B）Set monitor to transparent and ask the server team to set string 'TRANSPARENT' in test.html.

（C）Set 'receive string' equal to 'SERVER UP 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 'alias' equal to 'SERVER DOWN' and ask the server team to set string 'SERVER DOWN' in test.html.

正解：C、D 解答を投票する

質問 2

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Refer to the exhibit.
An LTM Specialist sets up AVR alerts and notifications for a specific virtual server if the server latency exceeds 50ms. The LTM Specialist simulates a fault so that the server latency is consistently exceeding the 50ms threshold; however, no alerts are being received.
Which configuration should the LTM Specialist modify to achieve the expected results?

（A）The metric "Page Load Time" needs to be enabled to ensure that the correct information is collected.

（B）The rule should be adjusted to trigger when server latency is above 50ms.

（C）User Agents needs to be enabled to ensure the correct information is collected to trigger the alert.

（D）SNMP alerting should be enabled to allow e-mail to be sent to the support team.

正解：B 解答を投票する

質問 3

-- Exhibit-

-- Exhibit --
Refer to the exhibits.
Which URL on which server is causing the highest latency for users?

（A）/reflector.php on 172.16.20.2

（B）/Compress.HTML on 172.16.20.1

（C）/slow1.php on 172.16.20.3

（D）/slow2.php on 172.16.20.1

正解：C 解答を投票する

質問 4

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-- Exhibit -
Refer to the exhibits.
An LTM Specialist is troubleshooting an application configured on an LTM device on a one-armed configuration. The application is NOT working through the LTM device but does work when accessed directly via the application servers. The virtual server
192.168.1.211:443 is configured to SNAT using the address 192.168.1.144 and references a pool with the member 192.168.10.80:443. No Client or Server SSL profiles are associated. The LTM Specialist has collected two traffic captures to help determine the issue.
What is the problem with the configuration on the LTM device?

（A）Pool member is configured for SSL off-loading.

（B）Virtual server is configured without SSL Profiles.

（C）Pool member is configured to use wrong port.

（D）Virtual server is configured to use wrong port.

正解：C 解答を投票する

質問 5

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
The virtual server is listening on port 443.
What is the solution to the problem?

（A）Modify the virtual server TCP profile to disable Nagle's Algorithm.

（B）Add an SSL Client profile to the existing virtual server.

（C）Modify the virtual server HTTP Profile to 'Redirect RewritE.All'.

（D）Modify the virtual server HTTP Profile to 'Redirect RewritE.Matching'.

正解：C 解答を投票する

質問 6

-- Exhibit-

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Refer to the exhibits.
An LTM Specialist is troubleshooting an issue with one of the virtual servers on an LTM device, and all requests are receiving errors. Testing directly against the server generates no errors. The LTM Specialist has captured the request and response on both client and server sides of the LTM device.
What should the LTM Specialist do to fix this issue?

（A）Configure SNAT Automap on the virtual server.

（B）Set "redirect-rewrite" to "selective" in http profile.

（C）Remove "header-erase Host" in http profile.

（D）Assign OneConnect profile to the virtual server.

正解：C 解答を投票する

質問 7

An FTP monitor is NOT working correctly.
Which three pieces of information does the LTM Specialist need to provide to ensure a properly working FTP monitor? (Choose three.)

（A）FTP server port

（B）username

（C）FTP server IP address

（D）alias

（E）password

（F）File path

正解：B、E、F 解答を投票する

質問 8

Which command should the LTM Specialist use to determine the current system time?

（A）ntpq -p

（B）uname -a

（C）date

（D）time

正解：C 解答を投票する

質問 9

-- Exhibit-

-- Exhibit --
Refer to the exhibit.
An LTM Specialist is reviewing the virtual server configuration on an LTM device.
Which two actions should the LTM Specialist perform to minimize the virtual server configuration? (Choose two.)

（A）Combine 'acct_class' and 'marketing_class' into one class and update associations on the virtual server.

（B）Remove the 'default_class' from the virtual server.

（C）Remove the 'http' profile from the virtual server.

（D）Combine 'marketing_class' and 'default_class' into one class and update associations on the virtual server.

（E）Remove 'snat automap' from the virtual server.

正解：A、B 解答を投票する

質問 10

-- Exhibit-
-- Exhibit -
Refer to the exhibit.
An LTM Specialist has created a virtual server to load balance traffic to a pool of HTTPS servers. The servers use client certificates for user authentication. The virtual server has clientssl, serverssl, and http profiles enabled. Clients are unable to connect to the application through the virtual server. Clients are able to connect to the application servers directly.
What is the root cause of the problem?

（A）The LTM device does NOT trust the issuing CA of the client certificate.

（B）The application server does NOT support 2048-bit keys.

（C）The application server does NOT see the client certificate due to SSL offload.

（D）The clientssl profile is NOT set to require a client certificate.

正解：C 解答を投票する

質問 11

-- Exhibit- -- Exhibit -

Refer to the exhibits.
A virtual server has been configured for SSL offload on a single-arm network. On average, the virtual server will be handling 100,000 connections, with a peak of 130,000 connections. Between the virtual server and the web servers there is a single reverse proxy to provide site caching. The proxy is configured to perform source IP persistence before contacting the web servers. The site is logging users out immediately after logging them in.
What should the LTM Specialist do to resolve this issue?

（A）Change the virtual server server-side TCP profile to tcp-lan-optimized.

（B）Add a source address persistence profile to the virtual server.

（C）Configure the virtual server HTTP profile to insert an X-Forwarded-For header.

（D）Create an iRule to add client IP persistence to a SNAT pool member.

正解：D 解答を投票する

質問 12

An application is configured on an LTM device:
Virtual server: 10.0.0.1:80 (VLAN vlan301)
SNAT IP: 10.0.0.1
Pool members: 10.0.1.1:8080, 10.0.1.2:8080, 10.0.1.3:8080 (VLAN vlan302)
Which packet capture should the LTM Specialist perform on the LTM device command line interface to capture only client traffic specifically for this virtual server?

（A）tcpdump -ni vlan301 -s 0 'port 80 and host 10.0.0.1' -w /var/tmp/trace.cap

（B）tcpdump -ni vlan301 -s 0 'port 8080 and host 10.0.1.1 or host 10.0.1.2 or host 10.0.1.3' w /var/tmp/trace.cap

（C）tcpdump -ni 0.0:nnn -s 0 '(port 80 and host 10.0.0.1) or (port 8080 and host 10.0.1.1 or host 10.0.1.2 or host 10.0.1.3)' -w /var/tmp/trace.cap

（D）tcpdump -ni 0.0:nnn -s 0 'host 10.0.0.1' -w /var/tmp/trace.cap

（E）tcpdump -ni vlan302 -s 0 'port 8080 and host 10.0.1.1 or host 10.0.1.2 or host 10.0.1.3' w /var/tmp/trace.cap

正解：A 解答を投票する

質問 13

Which command will identify the active LTM device currently handling client traffic?

（A）tmsh list /sys ha-status

（B）tmsh show /cm traffic-group

（C）tmsh show /sys ha-status all-properties

（D）tmsh run /sys failover standby

（E）b ha table show

正解：B 解答を投票する

質問 14

An LTM device has been configured to log the reasons for generating TCP RST packets.
The following log entry occurs:
"01230140:3: RST sent from 192.168.1.100:80 to 192.168.1.124:39272, [0x112d82a:1721] {peer} TCP RST from remote system."
Which condition will trigger this log entry?

（A）The host at the other end terminated the TCP connection.

（B）A virtual server connection limit has been reached.

（C）The LTM device has reached the maximum number of allowed attempts to send the data segment to the affected TCP connection.

（D）The LTM device reset the connection because no pool members are available.

正解：A 解答を投票する

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

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