499-01 試験問題を無料オンラインアクセス

Refer to the exhibit.

This graph represents the number of requests waiting for a response across various tiers. With load being generated at a constantly increasing rate, which tier is the bottleneck and why?

• A.The App tier is the bottleneck because it is the first tier not handling the same number of requests as the tier above it.
• B.The App tier is the bottleneck because the DB tier is handling everything the App tier sends it.
• C.The Web tier is the bottleneck because at an Offered Load of 300, there are still 50 requests waiting from the Web tier, and it never recovers. The lower tiers do not get the requests passed to them because the Web tier is not processing fast enough.
• D.The DB tier is the bottleneck because it is the lowest tier that is clearly not handling requests in time.
• E.The Web tier is the bottleneck because it has the most open requests waiting for a response.

User response time is the sum of which four metrics?

• A.Server response time, data transfer time, connection setup time, application turn rate
• B.Inbound round trip time, server response time, retransmission delay, payload transfer time
• C.Connection setup time, server response time, payload transfer time, retransmission delay
• D.Inbound round trip time, outbound round trip time, server response time, payload transfer time

In AppTransaction Xpert, the AppDoctor's Network Effects are broken down into which four effects?

• A.Congestion, latency, protocol, and bandwidth
• B.Connection resets, latency, bandwidth, and protocol
• C.Congestion, tier processing, protocol, and bandwidth
• D.Congestion, latency, windowing, and retransmissions

Which instruments can display threshold status? (Select 2)

• A.Bar chart
• B.Sparkline
• C.Historical comparison row
• D.LED

Which of the following statements are true? (Select 3)

• A.Being able to view a dashboard panel lets you adjust its time range and copy the panel to your own dashboard for further editing.
• B.External content can be inserted into any dashboard by using the Auxiliary Panel content type.
• C.By default, anyone who can authenticate to the OPNET Authorization Server can create their own dashboard.
• D.Dashboards can be shared so that authentication is not required, and right-click integration is fully functional.