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| Certification Vendor: | F5 |
|---|---|
| Exam Name: | F5 BIG-IP Administration Data Plane Concepts (F5CAB2) |
| Exam Number: | F5CAB2 |
| Available Languages: | English |
| Related Certifications: | F5 BIG-IP Administrator F5 Certified Administrator (F5-CA) F5 Application Delivery Fundamentals |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Recommended Training: | F5 BIG-IP Fundamentals Training |
| Exam Registration: | F5 Training & Certification Portal |
| Sample Questions: | F5 F5CAB2 Sample Questions |
| Exam Way: | Online proctored or authorized testing center (varies by region) |
| Pre Condition: | Basic networking knowledge and familiarity with TCP/IP concepts are recommended. |
| Official Syllabus URL: | https://www.f5.com/services/training-certification |
As practice makes perfect, we offer three different formats of F5CAB2 exam study material to practice and prepare for the F5CAB2 exam. Our F5 F5CAB2 practice test simulates the real BIG-IP Administration Data Plane Concepts (F5CAB2) (F5CAB2) exam and helps applicants kill exam anxiety. These F5CAB2 practice exams provide candidates with an accurate assessment of their readiness for the F5CAB2 test.
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NEW QUESTION # 56
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
Explanation:
In the BIG-IP system object hierarchy, health monitors can be applied at three levels: Node, Pool, and Pool Member.
* Pool Level (Properties): Applying a monitor at the Pool > Properties level is the most common and efficient administrative practice. When applied here, the monitor is inherited by all members of that pool. If the monitor fails for a specific member, that member is marked "down" specifically for that pool.
* Node Level: If a monitor is applied at the Node level (Local Traffic > Nodes), it checks the health of the physical IP address itself. If it fails, that node (and all pool members associated with it) is marked down globally across the entire system.
* Member Level: Applying a monitor at the Pool > Members level allows for specific "per-member" monitoring, which is usually only done if different members in the same pool require different health checks.
* The Specific Case: For a standard database pool like DB_Pool, the administrator should navigate to Local Traffic > Pools > DB_Pool > Properties and select the appropriate monitor (e.g., a custom TCP or Oracle monitor) from the "Health Monitors" configuration section.
NEW QUESTION # 57
What is required for a virtual server to support clients whose traffic arrives on the internal VLAN and pool members whose traffic arrives on the external VLAN?
Answer: D
Explanation:
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Virtual Servers have a setting calledVLAN and Tunnel Trafficwhich defines where the BIG-IP "listens" for new connections.4849
* Ingress Logic:A virtual server is an entry point. It must be enab50led on the VLAN where theClient resides. If a client is on the "51Internal" VLAN, the Virtual Server must be enabled there to receive the traffic.
* Egress Logic:The BIG-IP system uses theTMM Routing TableandSelf-IPsto reach pool members. It doesnotneed the Virtual Server to be "enabled" on the destination VLAN (External) to send traffic there.
* Default Behavior:By default, Virtual Servers are enabled on "All VLANs." However, if restricted for security, the administrator must ensure the Virtual Server is active on the client-facing (ingress) VLAN.
NEW QUESTION # 58
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?
Answer: A
Explanation:
TheForced Offlinestate is a critical administrative tool used during maintenance to ensure a device remains in a non-functional state relative to the traffic group.
* Preventing Active Status:When a device is in "Forced Offline," it is effectively disqualified from the HA election process. Even if the other peer fails, a device in Forced Offline willnotbecome active. This is vital during maintenance (like firmware upgrades or hardware replacement) to prevent an unstable or half-configured device from attempting to process traffic.
* Traffic Termination:Placing a device in Forced Offline triggers the system to stop accepting new connections and, depending on the configuration, can facilitate the termination of existing connections so that the administrator can perform work without the data plane actively utilizing system resources.
* Persistence Handling:Unlike the "Disabled" state, Forced Offline ignores persistence records, ensuring that no new traffic is steered to the device via session affinity.
NEW QUESTION # 59
The BIG-IP Administrator wants to provide quick failover between the F5 LTM devices that are configured as an HA pair with a single Self IP using the MAC Masquerade feature. The administrator configures MAC masquerade for traffic-group-1 using the following command:
`tmsh modify /cm traffic-group traffic-group-1 mac 02:12:34:56:00:00`
However, the Network Operations team identifies an issue with using the same MAC address across multiple VLANs. As a result, the administrator enables Per-VLAN MAC Masquerade to ensure a unique MAC address per VLAN by running:
`tmsh modify /sys db tm.macmasqaddr_per_vlan value true`
What would be the resulting MAC address on a tagged VLAN with ID 1501? (Choose one answer)
Answer: B
NEW QUESTION # 60
Refer to the exhibit.
The network team creates a new VLAN on the switches. The BIG-IP Administrator creates a new VLAN and a Self IP on the BIG-IP device, but the servers on the new VLAN are NOT reachable from the BIG-IP device.
Which action should the BIG-IP Administrator take to resolve this issue? (Choose one answer)
Answer: D
Explanation:
Comprehensive and Detailed Explanation (BIG-IP Administration - Data Plane Concepts):
For BIG-IP to send or receive traffic on a VLAN, that VLAN must be bound to a physical interface or a trunk. Creating a VLAN object and a Self IP alone is not sufficient to establish data-plane connectivity.
From the exhibit:
The VLAN (vlan_1033) exists and has a tag defined.
A Self IP is configured and associated with the VLAN.
However, traffic cannot reach servers on that VLAN.
This indicates a Layer 2 connectivity issue, not a Layer 3 or HA issue.
Why assigning a physical interface fixes the problem:
BIG-IP VLANs do not carry traffic unless they are explicitly attached to:
A physical interface (e.g., 1.1), or
A trunk
Without an interface assignment, the VLAN is effectively isolated and cannot transmit or receive frames, making servers unreachable regardless of correct IP addressing.
Why the other options are incorrect:
A . Set Port Lockdown to Allow All
Port Lockdown controls which services can be accessed on the Self IP (management-plane access), not whether BIG-IP can reach servers on that VLAN.
B . Change Auto Last Hop to enabled
Auto Last Hop affects return traffic routing for asymmetric paths. It does not fix missing Layer 2 connectivity.
D . Create a Floating Self IP address
Floating Self IPs are used for HA failover. They do not resolve reachability issues on a single device when the VLAN itself is not connected to an interface.
Conclusion:
The servers are unreachable because the VLAN has no physical interface assigned. To restore connectivity, the BIG-IP Administrator must assign a physical interface (or trunk) to the VLAN, enabling Layer 2 traffic flow.
NEW QUESTION # 61
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