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Understanding of functional and technical aspects of Troubleshooting basic hardware issues
The following will be discussed in this section:
- How to interpret the output from an EUD and determine if the test passed or failed
- How to identify which tasks the buttons on the LCD perform
- Given a possible issue, determine which log file entries to review
- Understand the relationship between interfaces, trunks, VLANs and their status/statistics
- How to correlate the LCD message to message in the corresponding log file
- How to locate the LCD on an F5 Platform
- Indicate which logs would contain debugging information
- How to download output from the unit an EUD was run on
- Given a log file, determine the nature of a hardware issue
- How to reboot an F5 platform into the EUD
NEW QUESTION 125
Refer to the exhibit.
According to the shown Configuration Utility stings What is the setting of the User Directory configuration under the Authentication submenu?
- A. Default system configuration
- B. Managed
- C. Local
- D. Remote-TACACS+
Answer: D
NEW QUESTION 126
A BIG-IP Administrator is conducting maintenance on one BIG-IP appliance in an HA Pair. Why should the BIG-IP Administrator put the appliance into FORCED_OFFLINE state?
- A. To terminate connections to the management IP and decrease persistent connections
- B. To allow new connections to Virtual Servers and ensure the appliance becomes active
- C. To terminate existing connections to Virtual Servers and prevent the appliance from becoming active
- D. To preserve existing connections to Virtual Servers and reduce the CPU load
Answer: C
NEW QUESTION 127
A BIG-IP Administrator has configured a BIG-IP cluster with remote user authentication against dcOl f5trn.com. Only local users can successfully log into the system. Configsync is also failing.
Which two tools should the 8IG-IP Administrator use to further investigate these issues? (Choose two)
- A. ntpq
- B. pwck
- C. dig
- D. pam_timestamp_check
- E. passwd
Answer: A,E
NEW QUESTION 128
Refer to the exhibit.
A BIG-IP Administrator creates a new Virtual Server. The end user is unable to access the page. During troubleshooting, the administrator learns that the connection between the BIG-IP system and server is NOT set up correctly.
What should the administrator do to solve this issue?
- A. Set Address Translation to Auto Map, configure a SNAT pool, and have pool members in the same subnet of the servers
- B. Set Address Translation to SNAT and have self-IP configured in the same subnet of servers
- C. Disable Address Translation
- D. Set Address Translation to SNAT and configure a specific translation address
Answer: D
Explanation:
The status of the pool can be seen that the members are all up, indicating that the network from F5 to the server is no problem, so there is no need to configure selfip on the same subnet. The monitor is normal but the access is not normal, you have to consider the problem of snat, you can configure automap or configure snat and specify snat ip.
NEW QUESTION 129
A configuration change is made on the standby member of a device group.
What is displayed as "Recommended Action" on the Device Management Overview screen?
- A. Force active member of device group to standby
- B. Synchronize the active member configuration to the group.
- C. Synchronize the standby member configuration to the group
- D. Activate device with the most recent configuration
Answer: C
NEW QUESTION 130
A BIG-IP Administrator needs to configure the BIG-IP system to perform load balancing for FTP servers running passive mode FTP.
How should the administrator configure the Virtual Server to perform this load balancing?
- A. A Standard Virtual Server + FTP profile
- B. A Performance Layer 4 Virtual Server + FTP profile
- C. A Message Routing Virtual Server
- D. A Forwarding Virtual Server
Answer: A
NEW QUESTION 131
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?
- A. Create a Floating Set IP Address
- B. Change Auto Last Hop to enabled
- C. Set Port Lockdown of Set IP to Allow All
- D. Assign a physical interface to the new VLAN
Answer: D
NEW QUESTION 132
Which Virtual Server type should be used to load balance HTTP traffic to a pool of servers?
- A. Standard
- B. Forwarding (Layer 2)
- C. Stateless
- D. Forwarding (IP)
Answer: A
NEW QUESTION 133
Assuming there are open connections through an active system's virtual servers and aEl fo av ielr occurs, by default, what happens to the connections.
- A. LongEllived connections such as Telnet and FTP are maintained,
but shortEllived connections such as HTTP are lost. - B. All open connections are lost, but new connections are initiated by the newly active BIGElIP, resulting in minimal client downtime.
- C. All open connections are lost.
- D. All open connections are maintained.
- E. When persistence mirroring is enabled, open connections are maintained even if a fEl aoilver occurs.
Answer: C
NEW QUESTION 134
When configuring a pool member's monitor, which three association options are available. (Choose three.)
- A. do not assign any monitor to the specific member
- B. inherit the node's monitor
- C. assign a monitor to the specific member
- D. inherit the pool's monitor
- E. configure a default monitor
Answer: A,C,D
NEW QUESTION 135
Which two statements are true about NATs. (Choose two.)
- A. NATs provide a manyEltoElone mapping between IP addresses.
- B. NATs support UDP, TCP, and ICMP traffic.
- C. NATs provide a oneEltoElone mapping between IP addresses.
- D. NATs can be configured with mirroring enabled or disabled.
Answer: B,C
NEW QUESTION 136
A BIGJP Administrator needs to load a UCS file but must exclude the license file. How should the administrator perform this task?
- A. From the CLI with command(tmos)< tmsh load /sys ucs <ucs filename> no-license
- B. From the GUI, select the UCS file and click restore
- C. From the CLI with command U tmsh load /$ys ucs <ucs filename> no-license
- D. From the GUI, select the UCS file, unchcck the license box, and click restore
Answer: C
NEW QUESTION 137
A BIG-IP Administrator opens a case with F5 Support. The support engineer requests the BIG-IP appliance chassis serial number.
Which TMSH command will provide this information?
- A. . list /sys software
- B. list/sys diags
- C. show /sys hardware
- D. show /sys version
Answer: C
NEW QUESTION 138
Refer to the exhibit.
How many nodes are represented on the network map shown?
- A. Four
- B. One
- C. Three
- D. Two
Answer: C
NEW QUESTION 139
A site has assigned the ICMP monitor to all nodes and a custom monitor, based on the HTTP template, to a pool of web servers. The HTTP based monitor is working in all cases. The ICMP monitor is failing for 2 of the pool member 5 nodes.
All other settings are default. What is the status of the monitor is working in all cases?
- A. All pool members are up since the HTTPbased monitor is successful.
- B. The pool members whose nodes are failing the ICMPbased monitor will be marked disabled.
- C. All pool members are down since the ICMPbased monitor is failing in some cases.
- D. The pool members whose nodes are failing the ICMPbased monitor will be marked unavailable.
Answer: D
NEW QUESTION 140
Refer of the exhibit.
The 816-IP Administrator runs the command shown and observes a device trust issue between BIG-IP devices in a device group. The issue prevents config sync on device bigip3.local.
What is preventing the config sync?
- A. Next Active Load factor is 0 on bigip1.local
- B. Both devices are standby
- C. Next Active Load factor is 1 on bigip1.local
- D. Time Delta to local system is 12
Answer: A
Explanation:
Option A should be bioip3.local?. if choose bigip3.local, you should choose A.
NEW QUESTION 141
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?
- A. Change Load Balancing method to Ratio (member)
- B. Change Load Balancing method to Ratio (node)
- C. Change Default Persistence Profile setting to cookie
- D. Change Default Persistence Profile setting to sipjnfo
Answer: C
NEW QUESTION 142
Assuming there are open connections through an active system's NAT and aEl fo av ielr occurs, by default, what happens to those connections.
- A. All open connections will be maintained.
- B. The "Mirror" option must be chosen on the NAT and the setting synchronized prior to the connection establishment.
- C. LongEllived connections such as Telnet and FTP will be maintained while shortEllived connectio ns such as HTTP will be lost.
- D. All open connections will be lost.
- E. All open connections are lost, but new connections are initiated by the newly actiEl vI eP, BIG resulting in minimal client downtime.
Answer: A
NEW QUESTION 143
On the VCMP system, a BIG-IP host administrator imports a new ISO image into the host's /shared/images folder. The new ISO images that reside on the vCMP host are available for installation on the guest. How should the BIG-IP Administrator install one image from within the guest?
- A. Run the following command on host
tmsh install sys software block-device-image image_name volume < volume_name> - B. Run the following command on guest
tmsh install sys software block-device-image image_name volume < volume_name> - C. Install the new software on the host and wait for it to automatically be installed on all guests.
- D. Run the following command on guest
tmsh install sys software image image_name volume < volume_name>
Answer: A
NEW QUESTION 144
A BIG-IP Administrator must configure the BIG-IP device to send system log messages to a remote syslog server In addition, the log messages need to be sent over TCP for guaranteed delivery. What should the BIG-IP Administrator configure?
- A. syslog-ng
- B. Request Logging Profile
- C. HSL Logging
- D. Remote Logging
Answer: D
NEW QUESTION 145
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