さらに、Pass4Test F5CAB3ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=1dm0T-X4BTv5Hgu9AbcN7h1m76gK1C_xW
我々社のF5 F5CAB3問題集を購入するかどうかと疑問があると、弊社Pass4TestのF5CAB3問題集のサンプルをしてみるのもいいことです。試用した後、我々のF5CAB3問題集はあなたを試験に順調に合格させると信じられます。なぜと言うのは、我々社の専門家は改革に応じて問題の更新と改善を続けていくのは出発点から勝つからです。
| Section | Weight | Objectives |
|---|---|---|
| Traffic Management Features | 15-20% | - HTTP profile settings - Connection limits and rate shaping - Compression and caching profiles - NAT and SNAT concepts - OneConnect - iRules basics and events |
| Virtual Servers and Pools | 25-30% | - Load balancing algorithms - Virtual server configuration options - Node and pool management - Virtual server types (Standard, Forwarding, Performance L4, Regex) - Priority group activation - Address translation and port translation - Pool configuration and members |
| LTM Fundamentals | 15-20% | - Configuration architecture and files - Licensing types - Traffic Management Shell (tmsh) CLI - License and provisioning modules - Objects and their relationships |
| SSL/TLS Configuration | 15-20% | - Certificate and key management - Cipher groups and compatibility - SSL profiles (Client and Server) - Certificate validation settings - SSL termination and re-encryption |
| Health Monitors and Persistence | 20-25% | - OneConnect and connection multiplexing - Persistence profiles (Cookie, Source Address, Universal) - Fallback host and persistence TTL - Monitor types and configurations - Monitor assignment and interval settings |
なぜ我々はあなたが購入した前にやってみることを許しますか。なぜ我々はあなたが利用してからF5のF5CAB3試験に失敗したら、全額で返金するのを承諾しますか。我々は弊社の商品があなたに試験に合格させるのを信じでいます。F5のF5CAB3試験が更新するとともに我々の作成するソフトは更新しています。
質問 # 80
The BIG-IP Administrator has configured an HTTP health monitor applied to a Pool of HTTP web servers hosting www.f5.com, but all Pool Members show a DOWN status. The web server is returning a response of '
400 Bad Request ' . What would be the correct monitor Send string?
正解：B
解説：
A 400 Bad Request response from an HTTP/1.1 web server is a definitive indicator that the HTTP request sent by the health monitor is missing a required Host header . In HTTP/1.1, the Host header is mandatory per RFC 7230. Web servers - particularly those hosting named virtual hosts such as www.f5.com - will reject any HTTP/1.1 request that omits the Host header, returning a 400 error, which the BIG-IP monitor interprets as a failed health check, marking all members DOWN.
The correct Send string must include:
* The GET request line with HTTP/1.1 protocol declaration
* A \r\n (carriage return + line feed) after the request line
* The Host: www.f5.com header to satisfy HTTP/1.1 requirements
* A \r\n after the Host header
* Connection: Close header to instruct the server to close the connection after responding
* A final \r\n\r\n to properly terminate the HTTP request headers
Only option C satisfies all these requirements with the correct syntax and Host header inclusion.
Option D (the current configured string) omits the Host header entirely - the root cause of the 400 error.
Options A and B are structurally incomplete or syntactically malformed.
Reference: BIG-IP Administration - Data Plane Configuration, Module: Health Monitors - HTTP Monitor Send String Configuration and HTTP/1.1 Host Header Requirements.
質問 # 81
Refer to the exhibit.
DNS queries from two internal DNS servers are being load-balanced to external DNS servers via a virtual server on a BIG-IP device. The DNS queries originate from:
192.168.10.100
192.168.10.200
and target:
192.168.2.150
All DNS queries destined for the external DNS servers fail.
Which property change should the BIG-IP Administrator make in the Virtual Server to resolve this issue? (Choose one answer)
正解：D
解説：
DNS traffic is primarily transported using UDP port 53. In the exhibit, the Virtual Server is configured with the Protocol set to TCP, which prevents standard DNS queries from being processed correctly. BIG-IP Virtual Servers must be configured with the correct Layer 4 protocol to match the application traffic they are handling.
According to the BIG-IP Administration: Data Plane Configuration documentation:
The Protocol setting on a Virtual Server defines whether traffic is processed as TCP, UDP, or another supported transport protocol.
Standard DNS queries and responses use UDP, while TCP is only required for DNS zone transfers (AXFR) or exceptionally large responses.
When a DNS Virtual Server is incorrectly configured with TCP, UDP-based DNS queries are dropped, causing all requests to fail.
Why the other options are incorrect:
A . Protocol profile (Client) to DNS_OPTIMIZED
A DNS profile enhances DNS functionality but does not correct an incorrect transport protocol configuration.
B . Type to Performance (HTTP)
Performance (HTTP) Virtual Servers are designed for HTTP traffic and are not suitable for DNS services.
C . Source Address to 192.168.10.0/24
The existing source IPs already fall within the allowed range, so this setting does not address the failure.
Correct Resolution:
Changing the Protocol to UDP aligns the Virtual Server with standard DNS transport requirements, allowing DNS queries to be successfully processed and load-balanced.
質問 # 82
An LTM device has a virtual server mapped to www.f5.com with a pool assigned. The objects are defined as follows: Virtual server: Destination 192.168.245.100:443 netmask 255.255.255.0. Persistence: Source address persistence netmask 255.0.0.0. SNAT: Automap. Profiles: HTTP/TCP. How should the BIG-IP Administrator modify the persistence profile so that each unique IP address creates a persistence record?
正解：C
解説：
Source Address Affinity (Persistence) works by tracking the source IP address of incoming packets to ensure a client stays connected to the same backend server. The " netmask " setting within the persistence profile determines the " granularity " of this tracking. A netmask tells the BIG-IP how many bits of the source IP address to ignore when creating the persistence record. For example, the current setting of 255.0.0.0 (a /8 mask) means the BIG-IP only looks at the first octet of the IP; this results in all users from the same large Class A network (e.g., everyone from 10.0.0.0 to 10.255.255.255) being persisted to the exact same server, which can lead to severe load imbalance.
To ensure that each unique IP address creates its own individual persistence record, the administrator must set the netmask to 255.255.255.255 (for IPv4). This is a " host mask " or /32, which instructs the BIG-IP to evaluate all 32 bits of the client ' s source IP address. With this setting, 10.1.1.1 and 10.1.1.2 will be treated as distinct entities and can be load balanced to different servers, each maintaining their own " stickiness " .
While Option A (255.255.255.0) would group users by their local subnet, only the full 255.255.255.255 mask satisfies the requirement for true unique-IP persistence. This configuration is standard for internet-facing applications where users arrive from diverse locations and the administrator wants to maintain the most granular and balanced distribution of traffic possible.
質問 # 83
A BIG-IP Administrator finds the following log entry after a report of user issues connecting to a virtual server:
01010201: Intercept exhaustion on 10.70.110.112 to 192.28.123.250:80 (proto 6) How should the BIG-IP Administrator modify the SNAT pool that is associated with the virtual server? (Choose one answer)
正解：C
解説：
The log message "Intercept exhaustion" indicates that the BIG-IP system has exhausted the available source port translations for one or more SNAT addresses. This occurs when too many concurrent client connections are being translated through a limited number of SNAT IP addresses, and all ephemeral source ports (typically ~64,000 per SNAT IP) are in use.
According to the BIG-IP Administration: Data Plane Configuration documentation:
Each SNAT IP address provides a finite number of available source ports.
When the number of concurrent connections exceeds the available port space, the BIG-IP logs an Intercept exhaustion error and new connections fail.
The recommended resolution is to increase the available SNAT resources by adding additional IP addresses to the SNAT pool.
Why the other options are incorrect:
A . Increase the timeout of the SNAT addresses
Increasing timeouts may actually worsen the problem by keeping ports allocated longer, accelerating port exhaustion.
B . Remove the SNAT pool and apply SNAT Automap
SNAT Automap uses the Self IP addresses on the egress VLAN, which may not provide additional capacity and can introduce routing or design issues. This is not a direct or recommended fix for SNAT exhaustion.
C . Remove an IP address from the SNAT pool
This would reduce the number of available source ports and further exacerbate the intercept exhaustion condition.
Correct Resolution:
By adding an IP address to the SNAT pool, the BIG-IP increases the total number of available source ports, alleviating intercept exhaustion and restoring successful client connections.
質問 # 84
In the BIG-IP Configuration Utility, a user requests a single screen view to determine the status of all Virtual Servers and associated pool members, as well as any iRules in use. Where should the BIG-IP Administrator instruct the user to find this view?
正解：A
解説：
The Local Traffic > Network Map provides a single consolidated view within the BIG-IP Configuration Utility that displays the full relationship hierarchy of all application delivery objects simultaneously. This includes Virtual Servers, their associated Pools, individual Pool Members, applied iRules, profiles, and the health status of each object - all rendered in a single topological screen.
This view is specifically designed for administrators and users who need rapid situational awareness across the data plane without navigating multiple menu screens. Each object is colour-coded to reflect its current availability state (green = available, red = unavailable, yellow = degraded).
The alternative options do not satisfy all requirements:
* Local Traffic > Monitors only displays health monitor configurations, not virtual server or pool member relationships.
* Statistics provides performance counters and throughput data, not object relationship mapping.
* Local Traffic > Virtual Servers lists virtual server configurations individually but does not provide a unified topology view inclusive of pool members and iRules in a single screen.
The Network Map is the authoritative single-pane-of-glass tool for application object visibility on BIG-IP.
Reference: BIG-IP Administration - Data Plane Configuration, Module: Monitoring and Managing Application Traffic - Network Map.
質問 # 85
......
我々は不定期的に割引コードを提供することができます。受験生たちはF5CAB3試験を準備するとき、F5CAB3参考書が必要です。だから、安い問題集はあなたにとって重要です。我々の安い問題集で、あなたは順調にF5CAB3試験に合格することができます。我々は受験生たちの合格を祈ります。
F5CAB3ファンデーション: https://www.pass4test.jp/F5CAB3.html
さらに、Pass4Test F5CAB3ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=1dm0T-X4BTv5Hgu9AbcN7h1m76gK1C_xW