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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: System Upgrade and Maintenance | 20% | - Upgrade procedures
|
| Topic 2: Management Connectivity and Configuration | 20% | - Management network setup
|
| Topic 3: Software Image Management | 20% | - Image acquisition and storage
|
| Topic 4: Licensing | 20% | - Module licensing and provisioning
|
| Topic 5: Securing BIG-IP | 20% | - Management security
|
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NEW QUESTION # 65
An administrator is in the process of reactivating the license using the interface displayed in the exhibit.
What is the address of the license server to which the BIG-IP device must be able to establish an outbound connection in order to use the Automatic Activation Method ?
Answer: B
Explanation:
When you choose Automatic as the activation method in the License > Re-activate screen, the BIG-IP device itself contacts F5's license activation service over the Internet.
For successful automatic activation:
* The BIG-IP must have outbound network connectivity (typically via the management interface).
* DNS resolution and routing must allow it to reach the F5 license activation host (the one shown in option D).
* The device sends its dossier and registration key to that service and receives an updated license file in return, which is then installed automatically.
The other hostnames in the options are not used by BIG-IP for license activation, so they cannot be correct in the context of Automatic Activation .
NEW QUESTION # 66
Which one of the following is a port and protocol combination allowed by the Allow Default setting for Port Lockdown?
Answer: C
Explanation:
Port Lockdown controls which ports and protocols a Self IP will respond to.
The Allow Default setting permits only a predefined set of BIG-IP internal and required service ports.
The Allow Default list includes:
TCP 443 HTTPS (Management/TMUI access via Self-IP)
TCP 4353 CMI (device sync)
TCP/UDP ports related to HA communication
Other essential internal F5 ports
Why TCP 443 is correct:
It is one of the officially allowed ports under Allow Default.
It enables HTTPS/TMUI access through a Self IP.
NEW QUESTION # 67
In order to configure allowed IP addresses forSSH accessto a BIG-IP device, the BIG-IP Administrator has issued the commands shown in the exhibit.
Which IP addresses will have SSH access after issuing the shown commands?
(Choose two.)
Answer: B,C
Explanation:
From the exhibit, the administrator performs the following actions:
* Displays the current SSH allow configuration:
tmsh list sys sshd allow
allow { ALL }
* Replaces the existing SSH allow list with a specific subnet:
tmsh modify sys sshd allow replace-all-with { 10.0.0.0/24 }
* Confirms the updated configuration:
tmsh list sys sshd allow
allow { 10.0.0.0/24 }
This configuration restricts SSH access to only hosts that fall within the10.0.0.0/24network.
Evaluation of the options
A). 10.0.0.100
This address is within the 10.0.0.0/24 subnet and is a valid host address, so SSH access is permitted.
B). 10.0.0.254
This address is also within the 10.0.0.0/24 subnet and is a valid host address, so SSH access is permitted.
C). 10.0.0.256
This is not a valid IP address because an IPv4 octet cannot exceed 255.
D). 100.0.1.10
This address is outside the configured 10.0.0.0/24 subnet and will not be allowed.
E). 100.0.0.10
This address is also outside the configured subnet and will not be allowed.
NEW QUESTION # 68
Which port is an exception to the Port Lockdown function of Self-IPs if a device-group synchronization cluster is configured?
Answer: A
Explanation:
Self-IPs implement a security feature known as Port Lockdown, which limits which services are reachable on a Self-IP.
However, certain services required for BIG-IP device-to-device communication bypass Port Lockdown to ensure cluster and HA functionality.
TCP 4353
TCP port 4353 is used by Device Service Clustering (DSC) for:
Device trust establishment
Configuration synchronization
Failover communication
Because BIG-IP devices must always be able to communicate for HA functions to remain operational, port 4353 is exempt from Port Lockdown rules.
NEW QUESTION # 69
How is a BIG-IP software upgrade typically performed?
Answer: C
Explanation:
Upgrades are manually initiated through the Configuration utility by uploading the software image and applying it.
NEW QUESTION # 70
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