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F5 301b Practice Test - Questions Answers, Page 16

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Question 151

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A company uses a complex piece of client software that connects to one or more virtual servers (VS) hosted on an LTM device. The client softwar

Question 152

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM device is used to load balance web content over a secure channel. The developers of the web content have done a trace using an HTTP pro

Question 153

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A virtual server is set up on an LTM device as follows: Virtual server address 78.24.213.79 Default Persistence ProfilE. source_addr, 600s.

Question 154

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A client attempts to connect from a Google Chrome browser to a virtual server on a BIG-IP LTM. The virtual server is SSL Offloaded. When the cl

Question 155

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM Specialist configures a virtual server to load balance to a pool of FTP servers. File transfers are failing. The virtual server is confi

Question 156

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The LTM Specialist per

Question 157

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The users are receivin

Question 158

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM Specialist configures a virtual server that balances HTTP connections to a pool of three application servers. Approximately one out of e

Question 159

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A server administrator notices that one server is intermittently NOT being sent any HTTP requests. The server logs display no issues. The LTM S

Question 160

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A layer 2 nPath routing configuration has been deployed. A packet capture contains a client connection packet with the following properties: S

Related questions

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?

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 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?

A client is attempting to log in to a web application that requires authentication. The following HTTP headers are sent by the client: GET /owa/ HTTP/1.1 Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ= User-Agent: curl/7.26.0 Host: 10.0.0.14 Accept: */* Accept-EncodinG. gzip,deflate The web server is responding with the following HTTP headers: HTTP/1.1 401 Unauthorized Content-TypE. text/html Server: Microsoft-IIS/7.5 WWW-AuthenticatE. NTLM DatE. Wed, 16 Aug 1977 19:12:31 GMT Content-LengtH. 1293 The client has checked the login credentials and believes the correct details are being entered. What is the reason the destination web server is sending an HTTP 401 response?

Question 151

-- Exhibit --

Refer to the exhibit.

A company uses a complex piece of client software that connects to one or more virtual servers (VS) hosted on an LTM device. The client software is experiencing issues. An LTM Specialist must determine the cause of the problem. The LTM Specialist has the tcpdump extract. The client loses connection with the LTM device.

Where is the reset originating?

the local switch

the application server

the device initiating the connection

the destination device of the initial connection

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Question 152

-- Exhibit --

Refer to the exhibit.

An LTM device is used to load balance web content over a secure channel.

The developers of the web content have done a trace using an HTTP profiler application. They believe that allowing the LTM device to compress traffic to the client will improve performance. The client can utilize GZIP or deflate compression algorithms.

An LTM Specialist must implement the compression.

The LTM Specialist has completed the following actions:

1. Create the relevant profile.

2. Apply the relevant profile to the virtual server (VS).

After applying the relevant profile, the LTM device is failing to compress the traffic. Instead, the traffic is being served with an error.

What is the problem?

The incorrect compression algorithm is applied to the compression profile.

The LTM device CANNOT SSL offload the traffic in order to read and compress it.

The Protocol Profile (Client) option of 'Allow Compression' needs to be enabled.

The Protocol Profile (Server) option of 'Allow Compression' needs to be enabled.

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Question 153

-- Exhibit --

Refer to the exhibit.

A virtual server is set up on an LTM device as follows:

Virtual server address 78.24.213.79

Default Persistence ProfilE. source_addr, 600s.

Pool NamE. Pool1

Pool Members: 10.72.250.52:80 and 10.72.250.60:80 (both on Internal Vlan)

There are several current connections to the virtual server, and pool member 10.72.250.52:80 has been set to a 'Disabled' state.

A tcpdump on the Internal Vlan shows traffic going to 10.72.250.52:80.

How soon after the persistence table query was run can existing connections be refreshed/renewed to ensure that no requests are sent to 10.72.250.52?

196 seconds

460 seconds

539 seconds

590 seconds

591 seconds

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Question 154

-- Exhibit --

Refer to the exhibit.

A client attempts to connect from a Google Chrome browser to a virtual server on a BIG-IP LTM. The virtual server is SSL Offloaded. When the client connects, the client receives an SSL error. The client receives the same errors when trying Mozilla Firefox and Internet Explorer browsers.

The LTM Specialist does an ssldump on the virtual server and receives the results as per the exhibit.

How should this be resolved?

Set the virtual server to listen on port 443 (HTTPS).

Upgrade the client to support the appropriate SSL cipher suite.

Select the appropriate 'SSL Profile (Client)' in the virtual server settings.

Adjust the SSL key length in the SSL profile to match the minimum required by the client.

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Question 155

-- Exhibit --

Refer to the exhibit.

An LTM Specialist configures a virtual server to load balance to a pool of FTP servers. File transfers are failing. The virtual server is configured as follows:

ltm virtual ftp_vs {

destination 10.10.1.103:ftp

ip-protocol tcp

mask 255.255.255.255

pool ftp_pool

profiles {

tcp { }

}

vlans-disabled

}

Which change will resolve the problem?

Add an FTP monitor to the pool.

Add an FTP profile to the virtual server.

Enable loose initiation in the TCP profile.

Increase the TCP timeout value in the TCP profile.

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Question 156

-- Exhibit --

Refer to the exhibit.

An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The LTM Specialist performs a capture on the server side of the LTM device.

What is the issue with the application?

data connection failing

LIST command disallowed

PORT command disallowed

command connection failing

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Question 157

-- Exhibit --

Refer to the exhibit.

An LTM Specialist is investigating reports that users are unable to perform some commands through an FTP virtual server. The users are receiving the FTP error '500 Illegal PORT command.' The virtual server is configured to SNAT using automap. The LTM Specialist performs a capture on the server side of the LTM device.

Why is the server returning this error?

LIST command disallowed

PORT command disallowed

Active IP address in PORT command

Active IP address in LOGIN command

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Question 158

-- Exhibit --

Refer to the exhibit.

An LTM Specialist configures a virtual server that balances HTTP connections to a pool of three application servers. Approximately one out of every three connections to the virtual server fails.

Which two actions will resolve the problem? (Choose two.)

Assign a custom HTTP monitor to the pool.

Enable SNAT automap on the virtual server.

Verify that port lockdown is set to allow port 80.

Verify the default gateway on the application servers.

Increase the TCP timeout value in the default TCP profile.

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Question 159

-- Exhibit --

Refer to the exhibit.

A server administrator notices that one server is intermittently NOT being sent any HTTP requests. The server logs display no issues. The LTM Specialist notices log entries stating the node (172.16.20.1) status cycling between down and up. The pool associated with the virtual server (10.10.1.100) has a custom HTTP monitor applied.

Which tcpdump filter will help trace the monitor?

tcpdump -i internal port 80 and host 172.16.1.31

tcpdump -i external port 80 and host 10.10.1.100

tcpdump -i internal port 80 and host 172.16.1.33

tcpdump -i external port 80 and host 172.16.20.1

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