Objective 1.08 Describe Data Center, Server/virtual Server, and Object Monitoring Including Explanation of Resulting Object Statuses [prober Pools, BIG-IP and Generic Server Objects, Monitors, Etc.] 302 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   A network administrator is configuring BIG-IP DNS to monitor a web server that is reachable from some parts of the network but not from others. What is the primary reason to use a prober pool for this monitoring task?

   • ATo replace the need for individual monitors on each BIG-IP DNS server
   • BTo monitor the object from multiple points in the network to get a more accurate view of its availability
   • CTo reduce the amount of network traffic generated by monitoring probes
   • DTo ensure that monitoring is performed only from the BIG-IP DNS server itself
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A financial services firm is deploying BIG-IP DNS to manage traffic to a trading application. The application is hosted in two data centers, and the network team is concerned about the accuracy of health checks. They have observed that a single BIG-IP DNS system can sometimes have a routing issue that prevents it from reaching one of the data centers, even though the data center is healthy. They want to ensure that a data center is only marked 'down' if it is unreachable from multiple network paths. What is the most effective way to achieve this?

   • AIncrease the monitor interval to reduce the frequency of probes and avoid false positives.
   • BConfigure the virtual server monitors to use a longer timeout to reduce false failures.
   • CUse a single ICMP monitor on the primary BIG-IP DNS to check the data center's gateway.
   • DConfigure a prober pool with prober virtual servers on multiple BIG-IP DNS systems and associate it with the virtual server monitors.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What is the main advantage of using a prober pool over a single monitor for a virtual server in BIG-IP DNS?

   • AIt allows the virtual server to be monitored from a single, fixed location
   • BIt provides a single, centralized point of failure for monitoring
   • CIt eliminates the need for any monitoring configuration on the BIG-IP DNS
   • DIt provides a more accurate representation of the virtual server's availability from different network perspectives
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A BIG-IP DNS administrator is reviewing the status of a virtual server. The virtual server has an HTTP monitor attached. The monitor has been running for several minutes, and the status is shown as 'unknown'. What does this status indicate?

   • AThe virtual server is not part of any wide-IP, so its status is 'unknown'.
   • BThe monitor is receiving mixed results, with some probes succeeding and some failing.
   • CThe monitor is misconfigured and cannot run, so the status is 'unknown'.
   • DThe monitor has not yet completed its first successful or failed probe.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   In a prober pool, what is the role of the prober virtual server?

   • ATo serve as the destination for DNS queries from external clients
   • BTo send probes to the monitored objects and receive responses
   • CTo store the configuration of the prober pool
   • DTo act as a load balancer for the monitored servers
   Reveal Solution Discussion Select an answer first