值得信賴的F5CAB3最新題庫資源&保證F5 F5CAB3考試成功 - 準確的F5CAB3熱門考題現在有許多IT培訓機構都能為你提供F5 F5CAB3 認證考試相關的培訓資料,但通常考生通過這些網站得不到詳細的資料。因為他們提供的關於F5 F5CAB3 認證考試資料都比較寬泛,不具有針對性,所以吸引不了考生的注意力。 最新的 F5-CA F5CAB3 免費考試真題 (Q14-Q19):問題 #14
Which type of Virtual Server requires the use of a FastL4 profile?
A. Stateless
B. Standard
C. Performance (HTTP)
D. Performance (Layer 4)
答案:D
問題 #15
In a pool there are 2 pool members (older servers) that can handle fewer connections than the other 3 newer servers.
Which load balancing method would allow more traffic to be directed to the newer servers? (Choose one answer)
A. Least Connections (member)
B. Global Availability
C. Round Robin
D. Weighted Least Connections (member)
答案:D
解題說明:
This scenario requires unequal load distribution based on server capacity. The newer servers must receive more connections than the older ones, while still dynamically accounting for active connection counts.
According to BIG-IP Administration: Data Plane Configuration documentation:
Weighted Least Connections (member) combines:
Connection awareness (least connections)
Administrator-defined weights (ratios) to reflect server capacity
Pool members with higher weights receive proportionally more new connections than members with lower weights, even when using the same load balancing algorithm.
Why B is correct:
Allows assigning higher weights to newer servers and lower weights to older servers Ensures smarter traffic distribution based on both capacity and real-time load Why the other options are incorrect:
A . Global Availability
Used for disaster recovery and site failover, not intra-pool load distribution.
C . Round Robin
Distributes connections evenly without considering server capacity.
D . Least Connections (member)
Balances only by current connection count and does not account for differences in server performance or capacity.
Correct Resolution:
Use Weighted Least Connections (member) and assign higher weights to newer servers so they receive more traffic while protecting older servers from overload.
問題 #16
How will the BIG-IP system distribute the traffic based on the configuration below?
pool my_pool {
lb_mode fastest
min_active_members 2
member 10.12.10.7:80 priority 3
member 10.12.10.8:80 priority 3
member 10.12.10.9:80 priority 3
member 10.12.10.4:80 priority 2
member 10.12.10.5:80 priority 2
member 10.12.10.6:80 priority 2
member 10.12.10.1:80 priority 1
member 10.12.10.2:80 priority 1
member 10.12.10.3:80 priority 1
}
(Pick the 2 correct responses below)
A. If both the priority 1 group and the priority 2 group have fewer than two members available, traffic is directed to the priority 3 group
B. Connections are first distributed to all pool members with priority 3 when all the pool members with priority 3 are available
C. If both the priority 3 group and the priority 2 group have fewer than two members available, traffic is directed to the priority 1 group
D. Connections are distributed to all pool members with priority 2 if one pool member with priority 3 is down
答案:B,C
解題說明:
The configuration provided utilizes Priority Group Activation in conjunction with the min_active_members setting. Priority groups allow an administrator to define primary servers and "backup" servers within the same pool. The BIG-IP prioritizes traffic based on the assigned priority number, with the highest number receiving traffic first.
In this specific configuration, the priority 3 group is the primary group. Therefore, connections are first distributed to all pool members with priority 3 as long as they are available. The system will continue to use only the priority 3 group unless the number of available members in that group falls below the min_active_members value, which is set to 2.
If the priority 3 group has fewer than two active members, the BIG-IP "activates" the next available priority group (priority 2) and distributes traffic among the remaining members of priority 3 and all members of priority 2. This cascading logic continues down the list. Consequently, if both the priority 3 group and the priority 2 group have fewer than two members available, traffic is directed to the priority 1 group. This ensures that even in a multi-server failure scenario, the system has a last-resort group of servers to handle the traffic.
Option D is incorrect because if only one member of priority 3 goes down, there are still two members active (10.12.10.8 and 10.12.10.9). Since 2 is not less than the min_active_members threshold of 2, the priority 2 group will not yet be activated. Option B is incorrect because traffic flows from high priority to low priority, not the other way around.
問題 #17
How can a BIG-IP Administrator identify a configuration object that has been configured within an iApp?
A. In both the GUI and the CLI the path will repeat the name of the object with .app appended to it, and the object type will be appended to the name. Example: ltm virtual /Common/testhttp.app/testhttp_vs
B. In both the GUI and the CLI the path will repeat the name of the object with .app appended to it and then name of the object. Example: ltm virtual /Common/testhttp.app/testhttp
C. Using the CLI run the appropriate tmsh command to view the path and see the .app in it and the object type will be appended to the name. Example: ltm virtual /Common/testhttp.app/testhttp.vs
答案:B
解題說明:
In F5 BIG-IP systems, an iApp is a template-driven framework used to deploy and manage application- specific configurations. When an iApp is deployed, the system creates a specialized folder or "Application Service" container to hold all the resulting Local Traffic Manager (LTM) objects, such as virtual servers, pools, and profiles. This container is visually and programmatically identified by the .app extension in its path name.
The naming convention for these objects follows a specific hierarchical structure: /<partition>/<iapp_name>.
app/<object_name>. For example, if an administrator creates an iApp named "testhttp" in the "/Common" partition, the virtual server created by that iApp would be identified in the configuration (TMSH) and the GUI as /Common/testhttp.app/testhttp. This structure allows the BIG-IP system to distinguish between manually created objects and those managed by the iApp's automation logic.
This identification is crucial because iApp-managed objects typically have Strict Updates enabled, which prevents administrators from making direct manual changes to the object settings outside of the iApp's reconfigure interface. Attempting to modify such an object directly will result in an error message stating that the application service must be updated using an application management interface. By recognizing the .app path and the repeated name within the structure, an administrator can immediately identify that the object belongs to an iApp and should be managed through the iApp's specific management screen rather than standard LTM configuration menus.
問題 #18
Which persistence profile would be the most appropriate to ensure an HTTP web request connects to the same pool member? (Choose one answer)
A. Cookie persistence
B. SSL persistence
C. Hash persistence
D. Destination address
答案:A
解題說明:
For HTTP-based applications, cookie persistence is the most appropriate and commonly recommended persistence method.
According to the BIG-IP Administration: Data Plane Configuration documentation:
Cookie persistence inserts or uses an HTTP cookie to maintain session affinity.
It operates at Layer 7 (HTTP) and is application-aware.
It allows persistence to be maintained even when multiple clients are behind a NAT device.
Why the other options are incorrect:
A . Destination address
Destination address persistence is generally used for inbound traffic patterns such as firewall or proxy scenarios.
B . Hash persistence
Hash persistence is less granular and not HTTP-specific.
C . SSL persistence
SSL persistence is typically used when SSL session IDs are reused and is less reliable than cookies for HTTP applications.
Correct Resolution:
Using cookie persistence ensures that HTTP web requests are consistently directed to the same pool member.