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F5 301b Practice Test - Questions Answers

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Question 1

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An LTM Specialist is troubleshooting an issue where one LTM device in a three LTM device group is failing to synchronize after a synchronize to group command is issued. The LTM Specialist verifies t

Question 2

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An LTM Specialist configures two LTM devices in a high-availability pair with trusts established and device groups configured properly using network failover. After several months, the LTM Specialis

Question 3

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An HA pair of LTM devices configured in Active-Standby mode stops responding to traffic and causes an outage. The Active device becomes Standby, but the partner device stays in Standby mode instead

Question 4

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A device group is made up of four members: LTM-A, LTM-B, LTM-C, and LTM-D. An LTM Specialist makes a configuration change on LTM-B. Later, a different LTM Specialist notices a 'changes pending' mess

Question 5

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. An LTM Specialist is troubleshooting a sync-failover group of three BIG-IP LTM devices. The command used is 'tmsh run cm watch-devicegroup-devi

Question 6

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. Based on the output of the tmsh interface show command, what is the issue?

Question 7

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-- Exhibit -- -- Exhibit -- Refer to the exhibit. A failover has just occured on BIG-IP1. BIG-IP2 is now active and manages traffic as expected. Both Bigip's are set with a gateway failsafe to

Question 8

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-- 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

Question 9

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-- 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 t

Question 10

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A failover event is recorded in the following log messages: Jan 01 00:56:56 BIG-IP notice mcpd[5318]: 01070727:5: Pool /Common/my-pool member /Common/10.0.0.10:80 monitor status down. Jan 01 00:56

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?

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?

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?

Question 1

An LTM Specialist is troubleshooting an issue where one LTM device in a three LTM device group is failing to synchronize after a synchronize to group command is issued. The LTM Specialist verifies there are no packet filters, port lock down, or network issues preventing the connection.

What are two reasons the synchronization group is having issues? (Choose two.)

Certificates expired on all of the peer LTM devices.

Certificates stored for the device trusts on all of the peer LTM devices are corrupted.

Admin passwords changed on one of the peer LTM devices that are able to synchronize.

Admin password changed on the LTM device NOT receiving the synchronized configurations.

Certificates stored for the device trusts on the LTM device NOT receiving the configuration are corrupted.

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Question 2

An LTM Specialist configures two LTM devices in a high-availability pair with trusts established and device groups configured properly using network failover. After several months, the LTM Specialist notices that changes made to one LTM device do NOT cause the synchronization status to update to 'changes pending,' and this device does NOT synchronize with the device group.

Which two steps should the LTM Specialist take to identify the issue? (Choose two.)

Verify that NTP is synchronized.

Verify the network connectivity between the devices.

Verify that the devices are not using self-signed certificates.

Verify that ConfigSync is using the management IP address.

Verify that port lockdown on the ConfigSync interface is set to allow port 1026.

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Question 3

An HA pair of LTM devices configured in Active-Standby mode stops responding to traffic and causes an outage. The Active device becomes Standby, but the partner device stays in Standby mode instead of taking over as Active. A reboot and restart of the services brings the LTM device to Active mode for a short time, but then it goes into Standby mode again.

Which two configuration components caused this condition? (Choose two.)

VLAN Fail-safe

System Fail-safe

Gateway Fail-safe

Switch Board Failure

Link down on Failover

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Question 4

A device group is made up of four members: LTM-A, LTM-B, LTM-C, and LTM-D. An LTM Specialist makes a configuration change on LTM-B. Later, a different LTM Specialist notices a 'changes pending' message on all devices. When logged into LTM-D, the LTM Specialist attempts to config-sync to the device group. The sync operation fails.

Why is the LTM Specialist on LTM-D unable to synchronize the configuration to the group?

The changes made on LTM-B are invalid.

LTM-D has the lowest commit-id of the group.

NTP is NOT configured on the devices in the group.

LTM-B is the device eligible to initiate a config-sync.

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Question 5

-- Exhibit --

Refer to the exhibit.

An LTM Specialist is troubleshooting a sync-failover group of three BIG-IP LTM devices. The command used is 'tmsh run cm watch-devicegroup-device.'

What does the output mean?

Configuration is synchronized between all the devices.

Configuration is not synchronized. Some modifications have been done on bigipA.

Configuration is not synchronized. Some modifications have been done on bigipB.

Configuration is not synchronized. Some modifications have been done on bigipC.

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Question 6

-- Exhibit --

Refer to the exhibit.

Based on the output of the tmsh interface show command, what is the issue?

There is a duplex mismatch on the management interface.

Interfaces 2.1 and 2.2 are defective and need replacement.

Flow Control is NOT configured on the management interface.

There are too many drops on inbound traffic on interface 1.1.

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Question 7

-- Exhibit --

Refer to the exhibit.

A failover has just occured on BIG-IP1. BIG-IP2 is now active and manages traffic as expected. Both Bigip's are set with a gateway failsafe to check the reachability of the main border router. Switches have performed as expected.

Where should the LTM Specialist check for potential issues?

Network Interface 2.1 of BIG-IP 2

Network Interface 2.1 of BIG-IP 1

Network Interface 2.2 of BIG-IP 2

Network Interface 2.2 of BIG-IP 1

Network Interface 1.1 of BIG-IP 1

Network Interface 1.1 of BIG-IP 2

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Question 8

-- 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 all outbound 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?

HA Group

Auto Failback

VLAN Failsafe

Gateway Failsafe

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Question 9

-- 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?

The HA-group will disable the trunk my_trunk.

The HTTP application will be unavailable via the LTM device.

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

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

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