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学習者の学習条件はさまざまであり、多くの場合、F5CAB5学習問題を学習するためにインターネットにアクセスできない場合があります。学習者が自宅や会社を離れる場合、インターネットにリンクしてF5CAB5テストpdfを学習することはできません。しかし、あなたはオフラインで学ぶことができる私たちのAPPオンライン版を使用しています。初めてオンラインになる環境でF5CAB5学習質問を使用する場合のみ、後でオフラインで使用できます。したがって、F5CAB5試験の練習教材をどこでも心配する必要がないため、すべての学習者にとって非常に便利です。
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社会に入ったあなたが勉強する時間は少なくなりました。それでも、引き続き勉強する必要があります。F5 F5CAB5問題集は便利で、使い安くて、最も大切なのは時間を節約できます。F5 F5CAB5問題集を勉強したら、順調にF5CAB5認定試験資格証明書を入手できます。
質問 # 22
A BIG-IP Administrator needs to collect HTTP status code and HTTP method for traffic flowing through a virtual server.
Which default profile provides this information? (Choose one answer)
正解：B
解説：
To collect application-layer details such asHTTP status codes(200, 404, 500, etc.) andHTTP methods(GET, POST, PUT, DELETE), the BIG-IP system must use a profile designed for traffic visibility and reporting rather than basic traffic handling. TheAnalytics profile (Option C)is the correct choice because it is specifically designed to collect, store, and present detailed statistics about HTTP and TCP traffic passing through a virtual server.
When an Analytics profile is attached to a virtual server, BIG-IP can record metrics such as HTTP response codes, request methods, URI paths, latency, throughput, and client-side/server-side performance data. These statistics are then accessible through the BIG-IP GUI underStatistics # Analytics, allowing administrators to validate application behavior and troubleshoot performance or functional issues.
TheHTTP profile (Option B)enables HTTP protocol awareness and features like header insertion and compression, but it does not provide historical or statistical reporting of HTTP methods and response codes.
Request Adapt (Option A)is used for ICAP-based content adaptation, not visibility.Statistics (Option D)is not a standalone profile and does not provide HTTP-level insight.
Therefore, the Analytics profile is the only default profile that fulfills this requirement.
質問 # 23
Refer to the exhibit.
The image shows the status of a virtual server named application_vs in the BIG-IP Configuration Utility.
What is the cause of the status shown? (Choose two answers)
正解：C、D
解説：
The exhibit shows the virtual server application_vs with a status indicating it is offline but enabled. In BIG-IP terminology, this status means the virtual server itself is administratively enabled, but it is unable to pass traffic because no usable pool members are available.
Two common and documented causes for this condition are:
Pool member(s) administratively disabled (Option A):
When all pool members are administratively disabled, BIG-IP removes them from load-balancing decisions. Even though the virtual server remains enabled, it has no available pool members to send traffic to, resulting in an offline status.
Node(s) administratively disabled (Option C):
Pool members inherit the status of their parent nodes. If a node is administratively disabled, all associated pool members are also marked unavailable. This condition causes the virtual server to show as offline, even though the virtual server configuration itself is correct.
The other options are incorrect:
Forced offline pool members (Option B) result in a different operational intent and are explicitly set for maintenance scenarios.
Virtual server administratively disabled (Option D) would show the virtual server as disabled, not enabled/offline.
This behavior is consistent with BIG-IP traffic management logic and is commonly verified by reviewing pool and node availability states when diagnosing virtual server availability issues.
質問 # 24
Which Virtual Server type prevents the use of a default pool?
正解：C
解説：
In BIG-IP TMOS administration, the "Forwarding (IP)" virtual server type is unique because it is designed to act as a high-performance router rather than a typical load balancer. Unlike a "Standard" virtual server, which terminates a connection and directs it to a specific pool of members, a Forwarding (IP) virtual server is intended to forward packets based on the system's routing table. Consequently, the configuration for this type of virtual server explicitly removes the option to associate a default pool. If an administrator is troubleshooting a scenario where they cannot assign a pool to a virtual server, they must verify if the type was accidentally set to Forwarding (IP). This type is most commonly used for outbound internet traffic (outbound SNAT) or to allow the BIG-IP to serve as a gateway between internal subnets. Identifying this constraint is vital for troubleshooting configuration errors where an administrator expects the system to load balance traffic but finds the pool association settings are grayed out or unavailable in the Configuration Utility.
質問 # 25
A BIG-IP Administrator needs to determine why only one pool member is showing connections from the virtual server, resulting in uneven load balancing.
What two reasons would cause uneven load balancing? (Choose two answers)
正解：B、C
解説：
Uneven load balancing on a BIG-IP system typically occurs when traffic is not distributed evenly across all available pool members. One common reason is thatmonitors have marked down multiple pool members (Option B). When health monitors fail for specific pool members, BIG-IP automatically removes those members from load-balancing decisions. As a result, traffic is sent only to the remaining healthy member, creating the appearance that load balancing is not functioning correctly. This behavior is expected and aligns with BIG-IP's design to ensure traffic is sent only to healthy resources.
Another frequent cause isthe presence of a persistence profile on the pool or virtual server (Option C).
Persistence (such as source address or cookie persistence) forces subsequent client connections to be sent to the same pool member for session continuity. While persistence is critical for certain applications, it can override the load-balancing algorithm and cause most or all traffic to be directed to a single pool member, especially during low traffic volumes or testing scenarios.
The other options are incorrect because avirtual server marked down (Option A)would not pass traffic at all, andall pool members marked down (Option D)would result in no connections rather than uneven distribution.
This analysis follows standard BIG-IP troubleshooting methodology using pool status, monitor results, and persistence configuration review.
質問 # 26
Exhibit:
A BIG-IP Administrator configured a virtual server with a pool of 3 members and selected the Round Robin load balancing method to evenly distribute traffic across the pool members. During initial testing, traffic was not evenly distributed and the pool member 172.16.20.3 received more traffic than the other pool members.
Refer to the exhibit and the virtual server configuration provided below:
Plaintext
ltm virtual http.vs {
destination 10.10.1.100:http
ip-protocol tcp
mask 255.255.255.255
persist {
source_addr { default yes }
}
pool http.pool
profiles {
tcp{}
}
serverssl-use-sni disabled
source 0.0.0.0/0
source-address-translation {
type automap
}
translate-address enabled
}
What is the most likely cause of this behavior?
正解：D
解説：
The primary reason for the uneven traffic distribution is the presence of a Persistence Profile in the virtual server configuration.
Load Balancing vs. Persistence: While the Round Robin method is designed to distribute new connections sequentially among pool members, Persistence overrides this logic for existing clients.
Source Address Persistence: The configuration shows source_addr persistence is enabled. This ensures that once a client (identified by their source IP) is mapped to a pool member, all subsequent connections from that same IP will be sent to the same member for the duration of the persistence record.
Uneven Distribution Logic: If one source IP address generates significantly more connections or longer-lived sessions than others-or if many clients appear behind a single NAT/Proxy IP-that specific pool member (in this case, 172.16.20.3) will receive a disproportionate amount of traffic compared to the others.
Evaluating Other Options:
Automap (Option A): SNAT Automap changes the source IP between the BIG-IP and the pool member. It does not impact the BIG-IP's ability to load balance incoming client requests.
Ratio Settings (Option B): In the provided exhibit, the pool members have a Ratio of 1, 2, and 3 respectively. While a higher ratio does direct more traffic to a member, the question asks for the "most likely cause" in the context of the provided ltm virtual configuration, which explicitly highlights the persistence override.
HTTP Profile (Option C): Round Robin is a Layer 4 load balancing algorithm and does not require a Layer 7 HTTP profile to function.
質問 # 27
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