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| Section | Weight | Objectives |
|---|---|---|
| LTM Fundamentals | 15-20% | - License and provisioning modules - Licensing types - Traffic Management Shell (tmsh) CLI - Objects and their relationships - Configuration architecture and files |
| SSL/TLS Configuration | 15-20% | - Cipher groups and compatibility - Certificate and key management - Certificate validation settings - SSL termination and re-encryption - SSL profiles (Client and Server) |
| Health Monitors and Persistence | 20-25% | - Persistence profiles (Cookie, Source Address, Universal) - Fallback host and persistence TTL - OneConnect and connection multiplexing - Monitor types and configurations - Monitor assignment and interval settings |
| Virtual Servers and Pools | 25-30% | - Node and pool management - Priority group activation - Load balancing algorithms - Pool configuration and members - Virtual server types (Standard, Forwarding, Performance L4, Regex) - Virtual server configuration options - Address translation and port translation |
| Traffic Management Features | 15-20% | - iRules basics and events - HTTP profile settings - OneConnect - NAT and SNAT concepts - Compression and caching profiles - Connection limits and rate shaping |
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NEW QUESTION # 14
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)
Answer: D
Explanation:
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.
NEW QUESTION # 15
A Standard Virtual Server for a web application is configured with SNAT Automap. The original client IP must be known by backend servers.
What should the BIG-IP Administrator configure?
Answer: A
Explanation:
X-Forwarded-For inserts the original client IP into HTTP headers while SNAT is enabled.
NEW QUESTION # 16
Users are unable to reach an application. The Virtual Server shows a red diamond status in the Configuration Utility.
What is the cause?
Answer: C
Explanation:
A red diamond indicates the Virtual Server is enabled but unavailable due to all pool members being down.
NEW QUESTION # 17
Refer to the exhibit.
A BIG-IP Administrator configures a Virtual Server to handle HTTPS traffic. Users report that the application is NOT working. Which additional configuration is required to resolve this issue?
Answer: C
Explanation:
According to the provided exhibit, the "SSL Profile (Client)" section in the Virtual Server configuration is empty. For a BIG-IP system to process HTTPS traffic, it must act as an SSL/TLS endpoint. This process, known as SSL Termination or SSL Offload, requires the assignment of a Client SSL Profile to the Virtual Server. Without this profile, the BIG-IP does not have the necessary certificate and private key information to perform the SSL handshake with the client's browser. Consequently, when a user attempts to connect via HTTPS, the TCP connection may establish, but the SSL handshake will fail because the BIG-IP will not know how to decrypt the incoming encrypted packets.
A Client SSL profile defines the ciphers, certificates, and keys that the BIG-IP uses to communicate securely with the client. In a standard HTTPS deployment, the BIG-IP decrypts the traffic and can then send it to the backend pool members either as plain text (header insertion/manipulation) or re-encrypt it using a Server SSL profile. While a Server SSL profile (Option C) is needed if the backend servers themselves require HTTPS, the initial failure for a user reaching a Virtual Server is almost always the lack of a Client SSL profile to terminate the user's connection. Changing the Service Port to HTTP (Option D) would be incorrect because the goal is to handle HTTPS traffic (typically port 443). Assigning the "clientssl" or a custom client-side profile from the "Available" list to the "Selected" list in the GUI is the mandatory step to make the Virtual Server operational for secure web traffic.
NEW QUESTION # 18
Refer to the exhibit.
The BIG-IP Administrator has configured an HTTP health monitor and applied it to a pool of HTTP web servers that host the website www.f5.com , but all pool members show a "DOWN" status. From the monitor logging on the LTM, the BIG-IP Administrator notices that the web server is returning a response of "400 Bad Request." What would be the correct monitor Send string?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From BIG-IP Administration Data Plane Configuration
/Course Guide/topics:
The monitor is explicitly sending an HTTP/1.1 request. For HTTP/1.1, the request must contain a valid Host header identifying the intended virtual host. The configured monitor sends the URI and Connection: Close header but omits Host: www.f5.com. A web server using name-based virtual hosting can therefore reject the request with HTTP 400 Bad Request , which explains why every pool member is marked down.
F5 ' s official BIG-IP monitor documentation gives the HTTP/1.1 convention in the form " GET / HTTP/1.
1\r\nHost: server.com\r\nConnection: close\r\n\r\n " .
Option A follows that required structure: the request line identifies HTTP/1.1, Host: www.f5.com selects the correct hosted site, Connection: Close requests connection termination after the response, and the final \r\n\r\n properly terminates the HTTP header section. F5 also specifies that when HTTP/1.0 or HTTP/1.1 is used, the monitor evaluates the HTTP status code; a non-200 response such as 400 causes the monitored resource to be considered unavailable.
Reference Topics: BIG-IP LTM Monitors Reference # HTTP Monitor Send String , HTTP/1.1 request formatting , pool-member health monitoring .
NEW QUESTION # 19
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