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The LTM Specialist is writing a custom HTTP monitor for a web application and has viewed the content by accessing the site directly via their browser. The monitor continually fails. The monitor configuration is: ltm monitor http /Common/exampleComMonitor { defaults-from /Common/http destination *:* interval 5 recv 'Recent Searches' send 'GET /app/feed/current\?uid=20145 HTTP/1.1 \\r\\nHost : www.example.com\\r\\nAccept-EncodinG. gzip, deflate \\r\\nConnection : close\\r\\n \\r\\n' time-until-up 0 timeout 16 } A trace shows the following request and response: Request: GET /app/feed/current?uid=20145 HTTP/1.1 Host www.example.com Accept-Encoding gzip, deflate Connection: close Response: HTTP/1.1 302 Moved Temporarily Date Wed, 17 Oct 2012 18:45:52 GMT Server Apache Location https://example.com/login.jsp Content-Encoding gzip Content-Type text/html;charset=UTF-8 Set-CookiE. JSESSIONID=261EFFBDA8EC3036FBCC22D991AC6835; Path=/app/feed/current?uid=20145 What is the problem?
An LTM Specialist configures the following iRule on an LTM device: when HTTP_REQUEST { if {[string tolower [HTTP::uri]] contains '/URI1/' } { pool Pool1 } elseif {[string tolower [HTTP::uri]] contains '/URI2/' } { pool Pool2 } elseif {[string tolower [HTTP::uri]] contains '/URI3/' } { pool Pool3 } else { pool Pool4} } Given the following request: http://www.example.comURI1/index.html?fu=bar&pass=1234 Which pool will be selected by the iRule?
An LTM Specialist configures an HTTP monitor as follows: ltm monitor http stats_http_monitor { defaults-from http destination *:* interval 5 recv 'Health check: OK' send 'GET /stats/stats.html HTTP/1.1\\r \\nHost : www.example.com\\r\\nAccept-EncodinG. gzip, deflate \\r\\nConnection : close\\r\\n \\r\\n' time-until-up 0 timeout 16 } The monitor is marking all nodes as down. A trace of the HTTP conversation shows the following: GET /stats/stats.html HTTP/1.1 Host: www.example.com Accept-EncodinG. gzip, deflate Connection: close HTTP/1.1 401 Authorization Required DatE. Tue, 23 Oct 2012 19:38:56 GMT Server: Apache/2.2.15 (Unix) WWW-AuthenticatE. Basic realm='Please enter your credentials' Content-LengtH. 480 Connection: close Content-TypE. text/html; charset=iso-8859-1 Which action will resolve the problem?
-- Exhibit -- -- Exhibit -- Refer to the exhibit. An administrator created a monitor to a pool member web server, which resulted in a pool member that is marked red. The administrator knows the web server is working when it is accessed from another computer. What should the administrator do to correct the problem?
Which three HTTP headers allow an application server to determine the client's language compatibility, browser, operating system type, and compression compatibility? (Choose three.)
set hsl [HSL::open -proto UDP -pool syslog_server_pool] HSL::send $hsl '<190> [HTTP::host] from [whereis [IP::client_addr] country continent state city zip] , IP: [IP::client_addr]' What do the following iRule commands do when they are used in the same iRule?
What is the effect of an iRule error such as referencing an undefined variable?
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.)
An LTM device is serving an FTP virtual server that has three pool members. The FTP pool members are monitored via TCP port 21. Customers are reporting that they are able to log in, but are sometimes unable to upload files to the server. Which monitor should the LTM Specialist configure to verify that the servers can handle file uploads?
-- 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, although the monitor is marking the member as down. As part of the troubleshooting, the LTM Specialist has captured the monitor traffic via tcpdump. How should the LTM Specialist resolve this issue?

Question 145 - 301b discussion

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-- Exhibit --

-- Exhibit --

Refer to the exhibit.

Users receive an error when attempting to connect to the website https://website.com. The website has a DNS record of 195.56.67.90. The upstream ISP has confirmed that there is nothing wrong with the routing between the user and the LTM device.

The following tcpdump outputs have been captured:

External Vlan, filtered on IP 168.210.232.5

00:25:07.598519 IP 168.210.232.5.33159 > 195.56.67.90.https: S 1920647964:1920647964(0) win 8192 <mss 1450,nop,nop,sackOK>

00:25:07.598537 IP 195.56.67.90.https > 168.210.232.5.33159: S 2690691360:2690691360(0) ack 1920647965 win 4350 <mss 1460,sackOK,eol>

00:25:07.598851 IP 168.210.232.5.33160 > 195.56.67.90.https: S 2763858764:2763858764(0) win 8192 <mss 1450,nop,nop,sackOK>

00:25:07.598858 IP 195.56.67.90.https > 168.210.232.5.33160: S 1905576176:1905576176(0) ack 2763858765 win 4350 <mss 1460,sackOK,eol>

Internal Vlan, filtered on IP 168.210.232.5

00:31:46.171124 IP 168.210.232.5.33202 > 192.168.100.20.http: S 2389057240:2389057240(0) win 4380 <mss 1460,nop,wscale 0,sackOK,eol>

What is the problem?

A.
The filters on the tcpdumps are incorrect.
Answers
A.
The filters on the tcpdumps are incorrect.
B.
The DNS entry for website.com is incorrect.
Answers
B.
The DNS entry for website.com is incorrect.
C.
The virtual server 'WEBSERVICES1' is listening on the incorrect port.
Answers
C.
The virtual server 'WEBSERVICES1' is listening on the incorrect port.
D.
The firewall is dropping the connection coming from the pool members returned to the client.
Answers
D.
The firewall is dropping the connection coming from the pool members returned to the client.
E.
The subnet masks of the pool members of pool WebServices1 and the f5 'Internal' Vlan are incorrect.
Answers
E.
The subnet masks of the pool members of pool WebServices1 and the f5 'Internal' Vlan are incorrect.
Suggested answer: D
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asked 24/09/2024
Nicholas Roy
43 questions
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