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NEW QUESTION # 45
A network administrator is planning to add a trunk to a single BIG-IP system. What does a trunk provide?
(Pick the 2 correct responses below)
Answer: A,C
Explanation:
In the F5 BIG-IP ecosystem, atrunkis a logical grouping of two or more physical interfaces that the system treats as a single data path. This configuration is based on the Link Aggregation Control Protocol (LACP) or static link aggregation.
Trunks provide two primary benefits to the data plane:
* Increased Bandwidth:By aggregating multiple physical interfaces (e.g., combining two 10Gbps interfaces), the aggregate throughput of the logical connection is increased. This allows the BIG-IP to handle higher traffic volumes than a single interface could support.
* Link Redundancy:Trunks provide high availability at the physical layer. If one physical interface within the trunk fails or the cable is disconnected, the BIG-IP system automatically redistributes traffic across the remaining active interfaces in the trunk. This prevents a single cable or port failure from causing a network outage.
Why the other options are incorrect:
* Option C:While VLAN tags are often usedontrunks, the ability to use tagged VLANs is a property of theVLANconfiguration and 802.1Q tagging, not the trunk itself. A single interface can support tagged VLANs without being part of a trunk.
* Option D:Trunks are agnostic to the type of application traffic (such as VoIP) passing through them.
They operate at Layer 2 to provide a reliable pipe for any Layer 3+ traffic.
NEW QUESTION # 46
An application is configured so that the same pool member must be used for an entire session, and this behavior must persist across HTTP and FTP traffic. A user reports that a session terminates and must be restarted after the active BIG-IP device fails over to the standby device.
Which configuration settings should the BIG-IP Administrator verify to ensure proper behavior when BIG-IP failover occurs? (Choose one answer)
Answer: D
Explanation:
This scenario combines session continuity, multiple protocols (HTTP and FTP), and HA failover behavior, which directly implicates persistence handling across devices and services.
Key Requirements Breakdown
Same pool member for entire session
Session must survive failover
Session must span multiple services (HTTP and FTP)
Why Persistence Mirroring + Match Across Services Is Required
Persistence Mirroring
Ensures persistence records are synchronized from the active BIG-IP to the standby BIG-IP.
Without mirroring:
After failover, the standby device has no persistence table
Clients are load-balanced again
Sessions break, forcing users to restart
Persistence mirroring is essential for session continuity during failover Match Across Services Allows a single persistence record to be shared across multiple virtual servers / protocols Required when:
HTTP and FTP must use the same pool member
Multiple services are part of a single application session
Together, these settings ensure:
Persistence survives device failover
Persistence is honored across HTTP and FTP
Why the Other Options Are Incorrect
A . Cookie persistence and session timeout
Cookie persistence only applies to HTTP and does not address FTP or failover synchronization.
B . Stateful failover and Network Failover detection
Stateful failover applies to connection state, not persistence records, and does not link HTTP and FTP sessions.
D . SYN-cookie insertion threshold and connection low-water mark
These are DoS / SYN flood protection settings, unrelated to persistence or HA behavior.
NEW QUESTION # 47
Which two statements describe differences between the active and standby systems? (Choose two.)
Answer: A,E
Explanation:
The primary distinction between Activ41e and Standby units revolves around which unit is currently processing traffic.
* Traffic Objects (C & E): The unit in the 43Active state is the only one that answers ARP requests for Virtual Server addresses and Floating Self-IPs. The Standby unit remains "quiet" for these addresses to avoid IP conflicts on the network.
* Monitors (A - False): Both the Active and Standby units perform health monitors on pool members by default. This ensures that the Standby unit is ready to take over with an up-to-date view of the pool's health.
* Failover (B - False): A failover trigger (like a VLAN fail-safe) causes the Active unit to go Standby and the Standby unit to go Active; it affects both.
* Management (D - False): Configuration changes can technically be made on either unit (though it is best practice to make them on the Active unit) and then synchronized to the peer.
NEW QUESTION # 48
A BIG-IP Administrator needs to apply a health monitor for a pool of database servers named DB_Pool that uses TCP port 1521.
Where should the BIG-IP Administrator apply this monitor?
Answer: A
NEW QUESTION # 49
A development team needs to apply a software fix and troubleshoot one of its servers. The BIG-IP Administrator needs to immediately remove all connections from the BIG-IP system to the back-end server.
The BIG-IP Administrator checks the Virtual Server configuration and finds that a persistence profile is assigned to it. What should the BIG-IP Administrator do to meet this requirement?
Answer: A
Explanation:
Managing the lifecycle of a pool member requires understanding the difference between "Disabled" and
"Forced Offline" states, especially when persistence is involved.
* Disabled (User-Disabled): This state allows existing connections and persistent sessions to continue until they naturally time out or are closed by the client/server. It only preventsnewsessions from being established.
* Forced Offline: This state is more restrictive; it allows existing connections to complete butrejectsall new connections, including those with existing persistence records.
* Immediate Removal: Neither "Disabled" nor "Forced Offline" will instantly kill currently active, established TCP connections. To meet the requirement of "immediately" removing all connections, the administrator must first set the member toForced Offline(to prevent persistence from bringing in new traffic) and then use the command line (e.g., tmsh delete sys connection ss-server-addr [IP]) to clear the current connection table entries.
NEW QUESTION # 50
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