An LTM Specialist needs to rewrite text within an HTML response from a web server. A client is sending the following HTTP request:
GET / HTTP/1.1
Host: www.example.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-LanguagE. en-US,en;q=0.5
Accept-EncodinG. gzip, deflate
Cache-Control: no-cache
Connection: keep-alive
CookiE. somecookie=1
HTTP/1.1 200 OK
Server: Apache/2.2.15 (Unix)
Last-ModifieD. Wed, 12 Aug 2009 00:00:30 GMT
Accept-Ranges: bytes
Content-LengtH. 1063
X-Cnection: close
Content-TypE. text/html; charset=UTF-8
Vary: Accept-Encoding
Content-EncodinG. gzip
Connection: Keep-Alive
Although a stream profile has been added to the virtual server, the content within the HTTP response is NOT being matched and therefore NOT modified.
Which header field is contributing to the issue?
Refer to the exhibit.
An organization is reporting slow performance accessing their Intranet website, hosted in a public cloud. All employees use a single Proxy Server with the public IP of 104.219.110.168 to connect to the Internet. What should the BIG-IP Administrator of the Intranet website do to fix this issue?
A BIG-IP Administrator contacts F5 Support, which identifies a suspected hardware failure. Which information should the BIG-IP Administrator provide to F5 Support?
The BIG-IP Administrator needs to perform a BIG-IP device upgrade to the latest version of TMOS. Where can the administrator obtain F5 documentation on upgrade requirements?
A 8IG-IP device is replaced with an RMA device. The BIG-IP Administrator renews the license and tries to restore the configuration from a previously generated UCS archive on the RMA device. The device configuration is NOT fully loading. What is causing the configuration load to fail?
An LTM Specialist is configuring a client profile to offload processing a new application Company policy requires that clients can resume session for up to 30 minutes, but must renegotiate a new session after that.
Which setting should the LTM Specialist change to satisfy this requirement?
A new web application is being deployed Mutual SSL authentication must be used to authenticate clients.
Which of the following two tasks must be completed to meet therequirements? (Choose two)
A 8IG-IP Administrator configures a Virtual Server to load balance traffic between 50 webservers for an
ecommerce website Traffic is being load balanced using the Least Connections (node) method.
The webserver administrators report that customers are losing the contents from their shopping carts
and are unable to complete their orders.
What should the BIG-IP Administrator do to resolve the issue?
An LTM Specialist is working with an LTM device configured with 10 virtual servers on the same domain with a different key/cert pair per virtual. For examplE. www.example.com; ftp.example.com; ssh.example.com; ftps.example.com.
What should the LTM Specialist do to reduce the number of objects on the LTM device?
An LTM Specialist discovers an issue with the custom http monitor that returns in a false positive status.
The end users cannot get the right website, but thehttp monitor marks the pool member UP.
What is causing the false positive result?
A BIG-IP Administrator uses backend servers to host multiple services per server. There are multiple virtual servers and pools defined, referencing the same backend servers.
Which load balancing algorithm is most appropriate to have an equal number of connections on each backend server?
A BIG-IP Administrator is performing maintenance on the active BIG-IP device of an HA pair. The BIG-IP
Administrator needs to minimize traffic disruptions.
What should the BIG-IP Administrator do to start the maintenance activity?
Refer to the exhibit
The network team creates a new VLAN on the switches. The BIG-IP Administrator needs to create a
configuration on the BIG-IP device. The BIG-IP Administrator creates a new VLAN and Self IP, but the
servers on the new VLAN are NOT reachable from the BIG-IP device.
Which action should the BIG-IP Administrators to resolve this issue?
An LTM Specialist configures a new virtual server with a single pool member. The LTM Specialist has NOT defined a health monitor for the pool, pool member or node.
What is the status of the virtual server?
A BIG-IP Administrator defines a device Self IP . The Self IP is NOT reachable from the network. What should the BIG-IP Administrator verify first?
Which command should an LTM Specialist use on the command line interface to show the health of RAID array hard drives?
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
An LTM Specialist configures a virtual server to perform client-side encryption while allowing the server-side traffic to be unencrypted. Application owners report that images are failing to load through the virtual server; however, images load when going directly to the server.
What is the problem with the images loading through the virtual server?
An LTM Specialist regularly provides analytics reports that show that traffic generated by different subnets within the organization. The LTM Specialist needs show the associate department names next the IP addresses in the reports.
Which step should the LTM Specialist take to meet this requirement?
A BIG-IP device is configured with both an internal external and two Corporate VLANs. The virtual server
has SNAT enabled and is set to listen on all VLANs Auto Last Hop is disabled. The Corporate users are on
10.0.0.0./24 and 172.16.0.0/12. The BIG-IP has a Self-IP on the 1.0.0.0.0./24 subnet.
Internet users are able to access the virtual server. Only some of the Corporate users are able to connect
to the virtual server A BIG-IP Administrator performs a tcpdump on the BIG-IP and verifies that traffic is
arriving from users in 10.0.0.0/24.
What should the BIG-IP Administrator do to correct this behaviour?
-- Exhibit –
-- Exhibit --
Refer to the exhibits.
Every monitor has the same Send String, Recv String, and an Alias of *:*. The LTM Specialist simplifies the configuration to minimize the number of monitors.
How many unique monitors remain?
A local user account (Users) on the BIG-IP device is assigned the User Manager role. Userl attempts to
modify the properties of another account (User2), but the action fails. The BIG-IP Administrator can
successfully modify the User2 account.
Assuming the principle of least privilege, what is the correct way to allow User 1 to modify User2
properties?
-- 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?
An LTM device is load balancing SIP traffic. An LTM Specialist notices that sometimes the SIP request is being load balanced to the same server as the initial connection.
Which setting in the UDP profile will make the LTM device more evenly distribute the SIP traffic?
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?
The pool members are serving up simple static web content.
The current virtual server configuration is given as follows:
tmsh list ltm virtual simple
ltm virtual simple {
destination 10.10.10.10:80
ip-protocol tcp
mask 255.255.255.255
profiles {
http { }
httpcompression { }
oneconnect { }
tcp { }
}
snat automap
vlans-disabled
}
tmsh list ltm pool simple_pool
ltm pool simple_pool {
members {
10.10.10.11:80 {
address 10.10.10.11 }
10.10.10.12:80 {
address 10.10.10.12 }
10.10.10.12:80 {
address 10.10.10.13 }
}
}
Which three objects in the virtual server configuration can be removed without disrupting functionality of the virtual server? (Choose three.)
An application is making heavy use of a large, high-quality JPEG image file. An LTM Specialist needs to enhance page load times without increasing server load.
Which profile should be applied to the virtual server to perform this task?
An LTM Specialist needs to create a pool with a set of monitor that checks both the pool members and corresponding application service ports. The pool members have services on port 80. The application service is on port 8009.
The LTM device should load balance traffic to the pool member when the pool member and corresponding application service pass monitor.
Which monitor and parameter set meets this requirement?
An LTM Specialist troubleshooting an issue looks at the following /var/log/ltm entries:
Oct 2 04:52:42 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Oct 2 05:37:16 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Oct 2 05:57:32 slot1/tmm2 crit tmm2[21729]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Oct 2 06:30:03 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Oct 2 06:37:44 slot1/tmm2 crit tmm2[21729]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Oct 2 06:47:05 slot1/tmm5 crit tmm5[21732]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)
Which configuration item should the LTM Specialist review to fix the issue?
Some users who connect to a busy Virtual Server have connections reset by the BIG-IP system. Pool member resources are NOT a factor in this behavior. What is a possible cause for this behavior?
-- 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?
Remote office users are having performance issues with a virtual hosted on the F5 LTM. The LTM Specialist reviews the configuration for the virtual server and determine that some settings are set with default profiles.
Which profile should the LTM Specialist enable to improve virtual server performance?
The picture belongs to static content, you can configure static content cache in FS to meet this demand
An LTM Specialist must configure session persistence for a highly available, highly utilized web-based application.
* The following requirements are provided:
* http proxy setup for security
persistence information available to the HA peer in case of failover
The LTM Specialist needs to minimize additional burden on the LTM device to the greatest extent possible.
Which persistence profile should be used?
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
A user is unable to access an HTTP application via a virtual server.
What is the cause of the failure?
The interface 1.1 of the BIG-IP device has been connected to a link dedicated to traffic on VLAN 120. What should the BIG-IP Administrator do to receive traffic from the VLAN?
Given this as the first packet displayed of an ssldump:
2 2 1296947622.6313 (0.0001) S>CV3.1(74) Handshake
ServerHello
Version 3.1
random[32]=
19 21 d7 55 c1 14 65 63 54 23 62 b7 c4 30 a2 f0
b8 c4 20 06 86 ed 9c 1f 9e 46 0f 42 79 45 8a 29
session_id[32]=
c4 44 ea 86 e2 ba f5 40 4b 44 b4 c2 3a d8 b4 ad
4c dc 13 0d 6c 48 f2 70 19 c3 05 f4 06 e5 ab a9
cipherSuite TLS_RSA_WITH_RC4_128_SHA
compressionMethod NULL
In reviewing the rest of the ssldump, the application data is NOT being decrypted.
Why is ssldump failing to decrypt the application data?
Refer to the exhibit.
An LTM device has a virtual server mapped to www.f5.com. Users report that when they connect to
/resources/201.1.2h.l_l.com they are unable to receive content.
What is the likely cause of the issue?
A BIG-IP Administrator makes a configuration change to the BIG-IP device. Which file logs the message regarding the configuration change?
In the BIG-IP Configuration Utility, a user requests a single screen view to determine the status of all Virtual Servers and associated pool members, as well as any iRules in use. Where should the BIG-IP Administrator instruct the user to find this view?
Which three HTTP headers allow an application server to determine the client's language compatibility, browser, operating system type, and compression compatibility? (Choose three.)
Which Virtual Server type should be used to load balance HTTP traffic to a pool of servers?
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
Which step should an LTM Specialist take to utilize AVR?
Refer to the exhibit.
A user notifies the BIG-IP Administrator that https://remote company.com is NOT accessible. Remote
access to company resources must be encrypted.
What should the BIG-IP Administrator do to fix the issue?
-- 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. However, the monitor is marking the member as down. The LTM Specialist captures the monitor traffic via tcpdump.
What is the issue?
An LTM Specialist has a OneConnect profile and HTTP profile configured on a virtual server to load balance an HTTP application.
The following HTTP headers are seen in a network trace when a client connects to the virtual server:
Clientside:
GET / HTTP/1.1
Host: 192.168.136.100
User-Agent: Mozilla/5.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-EncodinG. gzip, deflate
Connection: keep-alive
Serverside:
HTTP/1.1 200 OK
DatE. 5 Jun 1989 17:06:55 GMT
Server: Apache/2.2.14 (Ubuntu)
Vary: Accept-Encoding
Content-EncodinG. gzip
Content-LengtH. 3729
X-Cnection: close
Content-TypE. text/html
The LTM Specialist notices the OneConnect feature is working incorrectly.
Why is OneConnect functioning incorrectly?
A BIG-IP Administrator is checking the BIG-IP device for known vulnerabilities. What should the 8IG-IP Administrator upload to BIG-IP iHealth for further analysis?
Refer to the exhibit.
Which two pool members should be chosen for a new connection? (Choose two.)
-- Exhibit –
-- Exhibit --
Refer to the exhibits.
When observing the AVR statistics for the HTTPS_VS, an LTM Specialist realizes that HTTP status codes are NOT being recorded.
How should the LTM Specialist modify the configuration to record the HTTP status codes?
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?
-- 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?
Internet clients connecting to a virtual server to download a file are experiencing about 150 ms of latency and no packet loss.
Which built-in client-side TCP profile provides the highest throughput?
An LTM Specialist needs to upgrade all guests on a Viprion eight CMP guests.
What is the maximum number of guests that the LTM Specialist should upgrade at once?
An LTM Specialist is experiencing issues in a failover event. Certain long-lasting FTP event. Certain long-lasting FTP connections using a single node pool are forced to reconnect. The bigip.conf extract isshown:
What does the LTM Specialist need to change in the configuration to avoid this issue?
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?
An LTM device configuration is as shown:
An LTM device configuration is as shown
What should be the two expected outcomes based on this configuration? (Choose two.)
-- Exhibit –
-- Exhibit --
Refer to the exhibits.
A customer requests to offload SSL for an internal website. The front page of the website loads correctly; however, selecting links on the page fails.
How should the LTM Specialist fix the issue?
Six servers have a varying number of connections that change based on the user load.
Which load balancing method should an LTM Specialist apply to divided the web application traffic to the servers on therelative performance trend?
An application is expected to maintain more than 100,000concurrent TCP connections to a single pool member.
What is an appropriate SNAT configuration in this situation?
What is the status of a pool member when manual resume is enabled and a health check first fails and then passes?
Which command line interface command will check if the BIG-IP platform contains a packet velocity ASIC (PVA)?
A web application is configured as follows:
What should be modified to set a maximum request limit?
An LTM Specialist needs to add a pool that will load balanceMYSOL services. It has four members, each with differing hardware platforms. All pool members are already assigned to another pool for load balancing FTP traffic.
Which load balancing method is most effective when the LTM Specialist sets up the pool?
RADIUS authentication has been configured on the LTM device. The default remote user access requirements are as shown:
Which two items need to be configured in this situation? (Choose two)
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
A user is unable to access an application.
What is the root cause of the problem?
Given LTM device ltm log:
Sep 26 20:51:08 local/lb-d-1 notice promptstatusd[3695]: 01460006:5: semaphore mcpd.running(1) held
Sep 26 20:51:08 local/lb-d-1 notice promptstatusd[3695]: 01460006:5:
Sep 26 20:51:08 local/lb-d-1 warning promptstatusd[3695]: 01460005:4: mcpd.running(1) held, wait for mcpd
Sep 26 20:51:08 local/lb-d-1 info sod[3925]: 010c0009:6: Lost connection to mcpd - reestablishing.
Sep 26 20:51:08 local/lb-d-1 err bcm56xxd[3847]: 012c0004:3: Lost connection with MCP: 16908291 ... Exiting bsx_connect.cpp(174)
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0012:6: MCP Exit Status
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0012:6: Info: LACP stats (time now:1348717868) : no traffic
Sep 26 20:51:08 local/lb-d-1 info bcm56xxd[3847]: 012c0014:6: Exiting...
Sep 26 20:51:08 local/lb-d-1 err lind[3842]: 013c0004:3: IO error on recv from mcpd - connection lost
Sep 26 20:51:08 local/lb-d-1 notice bigd[3837]: 01060110:5: Lost connection to mcpd with error 16908291, will reinit connection.
Sep 26 20:51:08 local/lb-d-1 err statsd[3857]: 011b0004:3: Initial subscription for system configuration failed with error ''
Sep 26 20:51:08 local/lb-d-1 err statsd[3857]: 011b0001:3: Connection to mcpd failed with error '011b0004:3: Initial subscription for system configuration failed with error '''
Sep 26 20:51:08 local/lb-d-1 err csyncd[3851]: 013b0004:3: IO error on recv from mcpd - connection lost
.............skipping more logs.....
Sep 26 20:51:30 local/lb-d-1 notice sod[3925]: 01140030:5: HA proc_running bcm56xxd is now responding.
Sep 26 20:51:34 local/lb-d-1 notice sod[3925]: 01140030:5: HA proc_running mcpd is now responding.
Sep 26 20:51:34 local/lb-d-1 notice sod[3925]: 010c0018:5: Standby
Which daemon failed?
-- 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.
How should the send string be modified to correct this issue?
An LTM Specialist has noticed in the audit log that there are numerous attempts to loginto the Admin account. Theses attempts are sourced from a suspicious IP address range to the Configuration Utility of the LTM device.
How should the LTM Specialist block these attempts?
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
A user is unable to access a secure application via a virtual server.
What is the cause of the issue?
A BIG-IP Administrator is unable to connect to the management interface via HTTPS. What is a possible reason for this issue?
-- Exhibit –
-- Exhibit --
Refer to the exhibit.
A web application is configured to allow sessions to continue even after a user computer is shut down for the night. A new LTM device is configured to load balance the web application to several servers. The application owner reports that application users are logged out of the web application whenever their browser is restarted or computer is rebooted.
What is the problem?
-- 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 every three connections to the virtual server fails.
Which two actions will resolve the problem? (Choose two.)
Windows PC clients are connecting to a virtual server over a high-speed, low-latency network with no packet loss.
Which built-in client-side TCP profile provides the highest throughput for HTTP downloads?
An LTM device is monitoring three pool members. One pool member is being marked down.
What should the LTM Specialist enable to prevent the server from being flooded with connections once its monitor determines it is up?
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TESTED 20 May 2024
