BIG-IP Administration Data Plane Configuration (F5CAB3) exam Version: Demo [ Total Questions: 10] Web: www.certsout.com Email: support@certsout.com F5 F5CAB3 IMPORTANT NOTICE Feedback We have developed quality product and state-of-art service to ensure our customers interest. If you have any suggestions, please feel free to contact us at feedback@certsout.com Support If you have any questions about our product, please provide the following items: exam code screenshot of the question login id/email please contact us at and our technical experts will provide support within 24 hours. support@certsout.com Copyright The product of each order has its own encryption code, so you should use it independently. Any unauthorized changes will inflict legal punishment. We reserve the right of final explanation for this statement. F5 - F5CAB3 Certs Exam 1 of 7 Pass with Valid Exam Questions Pool A. B. C. D. A. B. C. D. Category Breakdown Category Number of Questions Apply procedural concepts required to modify and manage virtual servers 9 Apply procedural concepts required to modify and manage pools 1 TOTAL 10 Question #:1 - [Apply procedural concepts required to modify and manage virtual servers] An organization is reporting slow performance accessing their Intranet website. All employees use a single Proxy Server with a public IP. What should the BIG-IP Administrator do to fix this issue? Change Source Address to proxy IP Change Load Balancing Method to Least Connections Change Fallback Persistence Profile to source_addr Change Default Persistence Profile to cookie Answer: D Explanation When multiple users share one source IP, source-address persistence fails. Cookie persistence uniquely identifies users at Layer 7 and ensures correct session handling. Question #:2 - [Apply procedural concepts required to modify and manage virtual servers] DNS queries from internal DNS servers fail when sent through a BIG-IP Virtual Server. Which Virtual Server property should be changed? Protocol Profile (Client) to DNS_OPTIMIZED Type to Performance (HTTP) Protocol to UDP Source Address to subnet Answer: C Explanation Standard DNS queries use UDP. Configuring the Virtual Server for TCP causes DNS traffic to fail. F5 - F5CAB3 Certs Exam 2 of 7 Pass with Valid Exam Questions Pool A. B. C. D. Question #:3 - [Apply procedural concepts required to modify and manage virtual servers] The BIG-IP Administrator is investigating whether better TCP performance is possible for a virtual server. Which built-in profile should be tried first? (Choose one answer) f5-tcp-legacy f5-tcp-progressive f5-tcp-mobile No option Answer: B Explanation BIG-IP provides several built-in TCP profiles optimized for different traffic patterns and network conditions. When attempting to improve general TCP performance, the recommended starting point is f5-tcp-progressive According to the documentation: BIG-IP Administration: Data Plane Configuration f5-tcp-progressive is designed as a balanced, general-purpose TCP optimization profile It dynamically adjusts TCP behavior to improve throughput and latency for most enterprise applications. It is the recommended first-choice profile when tuning TCP performance before moving to more specialized profiles. Why the other options are incorrect: A. f5-tcp-legacy This profile exists for backward compatibility and does not include modern TCP optimizations. C. f5-tcp-mobile This profile is optimized specifically for high-latency, lossy mobile networks and is not suitable for general-purpose environments. D. No option BIG-IP explicitly provides built-in TCP profiles for performance tuning; using none would forgo optimization opportunities. Correct Resolution: The administrator should first apply to evaluate potential TCP performance improvements f5-tcp-progressive before considering more specialized profiles. Question #:4 - [Apply procedural concepts required to modify and manage virtual servers] F5 - F5CAB3 Certs Exam 3 of 7 Pass with Valid Exam Questions Pool A. B. C. D. A. B. C. D. A. Due to a change in application requirements, a BIG-IP Administrator needs to modify the configuration of a Virtual Server to include a Fallback Persistence Profile Which persistence profile type should the BIG-IP Administrator use? SSL Hash Universal Source Address Affinity Answer: D Explanation Fallback persistence is used when the primary persistence method fails. Source Address Affinity is a Layer 4 persistence method and is fully supported as a fallback option for most virtual server types. Question #:5 - [Apply procedural concepts required to modify and manage virtual servers] A Standard Virtual Server reports poor network performance for Internet-based clients. What configuration should be applied? Client TCP: f5-tcp-wan / Server TCP: f5-tcp-lan Client TCP: f5-tcp-lan Client TCP: f5-tcp-lan / Server TCP: f5-tcp-wan Client TCP: f5-tcp-optimized Answer: A Explanation WAN TCP profiles are optimized for high latency and packet loss typical of Internet clients, while LAN profiles are ideal for backend servers. Question #:6 - [Apply procedural concepts required to modify and manage virtual servers] Users are unable to reach an application. The Virtual Server shows a status in the Configuration red diamond Utility. What is the cause? F5 - F5CAB3 Certs Exam 4 of 7 Pass with Valid Exam Questions Pool A. B. C. D. A. B. C. D. A. B. C. D. All pool members are down HTTPS traffic sent to HTTP Virtual Server Virtual Server is disabled All pool members are disabled Answer: A Explanation A red diamond indicates the Virtual Server is enabled but unavailable due to all pool members being down. Question #:7 - [Apply procedural concepts required to modify and manage virtual servers] A BIG-IP Administrator creates a new Virtual Server to load balance SSH traffic. Users are unable to log on to the servers. What should the BIG-IP Administrator do to resolve the issue? Set Protocol to UDP Set HTTP Profile to None Set Source Address to 10.1.1.2 Set Destination Address/Mask to 0.0.0.0/0 Answer: B Explanation SSH is a TCP Layer 4 protocol. Applying an HTTP profile causes BIG-IP to expect HTTP headers, breaking SSH sessions. Removing the HTTP profile allows raw TCP forwarding. Question #:8 - [Apply procedural concepts required to modify and manage pools] A BIG-IP Administrator adds new pool members to a highly utilized pool. The application begins failing. What pool-level setting should be checked? Availability Requirement Allow SNAT Action On Service Down Slow Ramp Time F5 - F5CAB3 Certs Exam 5 of 7 Pass with Valid Exam Questions Pool A. B. C. D. Answer: D Explanation Slow Ramp Time prevents new members from being overwhelmed immediately after activation. Question #:9 - [Apply procedural concepts required to modify and manage virtual servers] All pool members are online and all other settings are default. What might alter the load balancing behavior? Adding a OneConnect profile Enabling SNAT Automap Enabling an HTTP fallback host Adding a persistence profile Answer: D Explanation Persistence overrides load balancing decisions by maintaining client-to-server affinity. Question #:10 - [Apply procedural concepts required to modify and manage virtual servers] Refer to the exhibit. F5 - F5CAB3 Certs Exam 6 of 7 Pass with Valid Exam Questions Pool A. B. C. D. A BIG-IP Administrator creates a new Virtual Server to load balance SSH traffic. Users are unable to log on to the servers. What should the BIG-IP Administrator do to resolve the issue? (Choose one answer) Set Protocol to UDP Set Source Address to 10.1.1.2 Set Destination Address/Mask to 0.0.0.0/0 Set HTTP Profile to None Answer: D Explanation F5 - F5CAB3 Certs Exam 7 of 7 Pass with Valid Exam Questions Pool SSH is a that operates on and does in any capacity. In Layer 4 TCP-based protocol TCP port 22 not use HTTP the exhibit, the Virtual Server is configured with an , which is inappropriate for SSH HTTP Profile applied traffic and causes connection failures. According to the documentation: BIG-IP Administration: Data Plane Configuration An HTTP profile must only be applied to Virtual Servers handling HTTP or HTTPS traffic When an HTTP profile is attached, BIG-IP expects HTTP headers and attempts to parse application- layer data. Non-HTTP protocols such as will fail if an SSH, FTP (control), SMTP, and other raw TCP services HTTP profile is enabled. Why the other options are incorrect: A. Set Protocol to UDP SSH uses , not UDP. Changing the protocol would break SSH entirely. TCP B. Set Source Address to 10.1.1.2 The source address setting controls client access restrictions and is unrelated to protocol parsing issues. C. Set Destination Address/Mask to 0.0.0.0/0 The destination address is already valid for a specific SSH service and does not impact protocol handling. Correct Resolution: The BIG-IP Administrator should so the Virtual Server functions remove the HTTP Profile (set it to None) as a pure Layer 4 TCP service, allowing SSH connections to pass through successfully. About certsout.com certsout.com was founded in 2007. We provide latest & high quality IT / Business Certification Training Exam Questions, Study Guides, Practice Tests. 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