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NEW QUESTION 83
An LTM Specialist has been asked to configure a virtual server to distribute connections between a pool of two application servers with addresses 172.16.20.1 and 172.16.20.2. The application servers are listening on TCP ports 80 and 443. The application administrators have asked that clients be directed to the same node for both HTTP and HTTPS requests within the same session.
Virtual servers vs_http and vs_https have been created, listening on 1.2.3.100:80 and 1.2.3.100:443, respectively.
Which configuration option will result in the desired behavior?
- A. Create pool http_pool with members 172.16.20.1:80 and 172.16.20.2:80 Create pool https_pool with members 172.16.20.1:443 and 172.16.20.2:443 Assign http_pool as the default pool for vs_http Assign https_pool as the default pool for vs_https Create a source address persistence profile with "match across services" enabled Assign the persistence profile to vs_http and vs_https
- B. Create pool app_pool with members 172.16.20.1:any and 172.16.20.2:any Assign app_pool as the default pool for both vs_http and vs_https Disable port translation for vs_http and vs_https
- C. Create pool http_pool with members 172.16.20.1:80 and 172.16.20.2:80 Create pool https_pool with members 172.16.20.1:443 and 172.16.20.2:443 Assign http_pool as the default pool for vs_http Assign https_pool as the default pool for vs_https Create an SSL persistence profile with "match across virtual servers" enabled Assign the persistence profile to vs_http
- D. Create pool http_pool with members 172.16.20.1:80 and 172.16.20.2:80 Assign pool http_pool as the default pool for both vs_https and vs_https Disable port translation for vs_https Create an SSL persistence profile with "match across virtual servers" enabled Assign the persistence profile to vs_http.
Answer: A
NEW QUESTION 84
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 0.0:nnn -s 0 'host 10.0.0.1' -w /var/tmp/trace.cap
- B. 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
- C. 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
- D. 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
- E. tcpdump -ni vlan301 -s 0 'port 80 and host 10.0.0.1' -w /var/tmp/trace.cap
Answer: E
NEW QUESTION 85
There are three servers in the pool: 172.16.20.1, 172.16.20.2, and 172.16.20.3, with the virtual IP address
10.0.20.88.
A user CANNOT connect to an HTTP application. To understand the problem and find a solution, the LTM Specialist runs two concurrent traces on the LTM device, with the following results:
Trace on client side:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes
22:22:07.423759 IP 172.16.20.100.53875 > 10.0.20.88.80: S 998346084:998346084(0) win 5840 <mss
1460,sackOK,timestamp 67942058 0,nop,wscale 4>
22:22:07.424056 IP 10.0.20.88.80 > 172.16.20.100.53875: S 4671780:4671780(0) ack 998346085 win
4380 <mss 1460,nop,wscale 0,nop,nop,timestamp 2392362490 67942058,sackOK,eol>
22:22:07.424776 IP 172.16.20.100.53875 > 10.0.20.88.80: . ack 1 win 365 <nop,nop,timestamp 67942058
2392362490>
22:22:07.424790 IP 172.16.20.100.53875 > 10.0.20.88.80: P 1:149(148) ack 1 win 365
<nop,nop,timestamp 67942058 2392362490>
22:22:07.424891 IP 10.0.20.88.80 > 172.16.20.100.53875: . ack 149 win 4528 <nop,nop,timestamp
2392362491 67942058>
22:22:12.024850 IP 10.0.20.88.80 > 172.16.20.100.53875: R 1:1(0) ack 149 win 4528
6 packets captured
6 packets received by filter
0 packets dropped by kernel
Trace on server side:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on internal, link-type EN10MB (Ethernet), capture size 96 bytes
22:22:07.424881 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380 <mss
1460,nop,wscale 0,nop,nop,timestamp 2392362491 0,sackOK,eol>
22:22:08.424893 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380 <mss
1460,nop,wscale 0,nop,nop,timestamp 2392363491 0,sackOK,eol>
22:22:09.625082 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380 <mss
1460,nop,wscale 0,nop,nop,timestamp 2392364691 0,sackOK,eol>
22:22:10.825194 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380 <mss
1460,sackOK,eol>
4 packets captured
4 packets received by filter
0 packets dropped by kernel
What should the LTM Specialist do to solve the problem?
- A. Modify the monitor of the pool.
- B. Configure the virtual server to use SNAT.
- C. Enable the virtual server.
- D. Edit the packet filter rules.
Answer: B
NEW QUESTION 86
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
Which step should an LTM Specialist take to utilize AVR?
- A. license the device for AVR
- B. reboot the device
- C. provision AVR
- D. install the AVR add-on
Answer: C
NEW QUESTION 87
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
An LTM Specialist has uploaded a qkview to F5 iHealth.
Within the GUI, what is the correct procedure to comply with the recommendation shown in the exhibit?
- A. Obtain product version image from release.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name. - B. Log a call requesting the product version image via websupport.f5.com
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name. - C. Obtain product version image from images.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name. - D. Obtain product version image from downloads.f5.com.
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name.
Answer: D
NEW QUESTION 88
An LTM Specialist has set up a custom SNMP alert.
Which command line tool should the LTM Specialist use to test the alert?
- A. snmptest
- B. logger
- C. testlog
- D. logtest
Answer: B
NEW QUESTION 89
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
Which URL should be reported to the server/application team as getting user-visible errors?
- A. /page14.cgi
- B. /env.cgi
- C. /browserspecific.html
- D. /reflector.php
Answer: A
NEW QUESTION 90
Which procedure should an LTM Specialist follow to move a configuration from a 1500 to a 1600 hardware platform during an upgrade?
- A. tmsh save sys backup file filename.scf copy the file from the /var/local/scf directory from one device to the other tmsh load sys backup file filename.scf
- B. tmsh save sys config file filename.scf copy the file from the /var/local/ucs directory from one device to the other tmsh load sys config file filename.scf
- C. tmsh save sys backup file filename.scf copy the file from the /var/local/ucs directory from one device to the other tmsh load sys backup file filename.scf
- D. tmsh save sys config file filename.scf copy the file from the /var/local/scf directory from one device to the other tmsh load sys config file filename.scf
Answer: D
NEW QUESTION 91
A OneConnect profile is applied to a virtual server. The LTM Specialist would like the client source IP addresses within the 10.10.10.0/25 range to reuse an existing server side connection.
Which OneConnect profile source mask should the LTM Specialist use?
- A. 0.0.0.0
- B. 255.255.255.128
- C. 255.255.255.255
- D. 255.255.255.224
- E. 255.255.255.0
Answer: B
NEW QUESTION 92
An LTM device pair is configured for failover and connection mirroring. The LTM devices are configured with virtual servers for HTTP, HTTPS with SSL offload, and SSH. An event occurs that causes a failover.
HTTP and SSH sessions active at the time of failover remain active, but HTTPS sessions are dropped.
What is the root cause of this problem?
- A. The SSL certificates on the LTM devices do NOT match.
- B. SNAT automap was NOT enabled for the HTTPS virtual servers.
- C. Connection mirroring was NOT enabled for the HTTPS virtual servers.
- D. Connection mirroring is incompatible with clientssl profiles.
Answer: D
NEW QUESTION 93
-- 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 pool member is responding without HTTP headers.
- D. The HTTP headers are compressed.
Answer: C
NEW QUESTION 94
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. Use an HTTPS monitor with a valid certificate instead.
- B. Add an NTLM profile to the virtual server.
- C. Add a valid username and password to the monitor.
- D. Add a backslash before the colon in the receive string.
Answer: C
NEW QUESTION 95
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_DATA {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
}
} - B. when HTTP_OPEN {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
}
} - C. when HTTP_REQUEST {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
}
} - D. when HTTP_RESPONSE {
if {[HTTP::header exists X-Forwarded-For]}{
pool pool_a
} else {
pool pool_b
}
}
Answer: C
NEW QUESTION 96
An LTM Specialist connects to an LTM device via the serial console cable and receives unreadable output.
The LTM Specialist is using the appropriate cable and connecting it to the correct serial port.
Which command should the LTM Specialist run through ssh to verify that the baud rate settings for the serial port are correct on the LTM device?
- A. tmsh show /ltm console
- B. tmsh list /sys console
- C. tmsh show /sys console
- D. tmsh edit /sys console
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 97
-- 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 timeout is too short.
- B. The response is compressed.
- C. The monitor is NOT configured to follow the redirect.
- D. The send string is incorrect.
Answer: D
NEW QUESTION 98
-- Exhibit -
-- Exhibit --
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. Remove "header-erase Host" in http profile.
- C. Assign OneConnect profile to the virtual server.
- D. Set "redirect-rewrite" to "selective" in http profile.
Answer: B
NEW QUESTION 99
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?
- A. Pool2
- B. Pool3
- C. Pool4
- D. Pool1
Answer: C
NEW QUESTION 100
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "Unable to connect" in the browser, although connections directly to the pool member show the application is functioning correctly. The LTM device configuration is:
ltm virtual /Common/vs_https {
destination /Common/10.10.1.110:443
ip-protocol udp
mask 255.255.255.255
pool /Common/pool_https
profiles {
/Common/udp { }
}
translate-address enabled
translate-port enabled
vlans-disabled
}
ltm pool /Common/pool_https {
members {
/Common/172.16.20.1:443 {
address 172.16.20.1
}
}
}
What issue is the LTM Specialist experiencing?
- A. The pool member is marked down by a monitor.
- B. The virtual server is disabled on all VLANs.
- C. The pool member is marked down administratively.
- D. The virtual server is configured for the incorrect protocol.
Answer: D
NEW QUESTION 101
-- 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 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?
- A. tcpdump -i external port 80 and host 10.10.1.100
- B. tcpdump -i internal port 80 and host 172.16.1.31
- C. tcpdump -i internal port 80 and host 172.16.1.33
- D. tcpdump -i external port 80 and host 172.16.20.1
Answer: B
NEW QUESTION 102
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