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Riverbed 499-01 Riverbed Certified Solutions Professional - Application Performance Management Exam Practice Test

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Riverbed Certified Solutions Professional - Application Performance Management Questions and Answers

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Question 1

What is the best way to include data from multiple data sources in one panel?

Options:

A.

Select all of the desired metrics at panel creation time.

B.

Click on the "+" icon on the panel after you have chosen an initial set of metrics.

C.

Drag one panel on top of another to merge them.

Question 2

Which data sources would be used to provide end-user experience monitoring? (Select 2)

Options:

A.

AppInternals Xpert

B.

AppSensor Xpert

C.

AppMapper Xpert

D.

AppResponse Xpert

Question 3

Which instruments can display threshold status? (Select 2)

Options:

A.

LED

B.

Sparkline

C.

Bar chart

D.

Historical comparison row

Question 4

Where is the "Embeddable HTML" field found in the Dashboard user interface?

Options:

A.

Create New Panel icon

B.

Data Sources icon

C.

Link icon

D.

Create New Dashboard icon

Question 5

When you type an IP address or host name in the search field of Riverbed Performance Management Dashboards, the following occurs:

Options:

A.

You get of list of next-hop IP addresses or host names to use to create dashboards.

B.

The field automatically populates with the data sources for the IP address or host names from which you can open pre-configured dashboards.

C.

The "Create New Dashboard" panel opens with templates you can use to create a dashboard with the given IP address or host name.

D.

The dashboards already created with the given IP address or host name automatically open in a new tab.

Question 6

Which Riverbed Performance Management solution leverages the same packet collection as AppResponse Xpert but looks deep into SQL performance and usage without agents?

Options:

A.

AppSQL Xpert

B.

CX-Tracer

C.

AppDatabase Xpert

D.

AppSensor Xpert

Question 7

Which methods would diagnose why page views are not being counted in BrowserMetrix? (Select 3)

Options:

A.

Look at the waterfall view for individual page views in AppResponse Xpert and verify it has the beacon.gif request to the BrowserMetrix Collector.

B.

View the page source of a page that should be tracked in the browser to ensure it has the initial JavaScript snippet loaded.

C.

Analyze network packets from the browser workstation with AppTransaction Xpert to verify it makes a request to the BrowserMetrix Collector.

D.

View the transaction details from Transaction Trace Warehouse (assuming the back-end is also instrumented with AppInternals Xpert) to check the HTTP headers for presence of a BrowserMetrix cookie.

E.

Look at AppResponse Xpert data for requests to the BrowserMetrix Collector process to validate they occur.

Question 8

Which Riverbed Performance Management solution would be appropriate for companies seeking application code-level tracing and high-level performance monitoring?

Options:

A.

AppInternals Xpert

B.

AppResponse Xpert

C.

AppTransaction Xpert

D.

AppSensor Xpert

Question 9

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?

Options:

A.

The Web tier is the bottleneck because it has the most open requests waiting for a response.

B.

The DB tier is the bottleneck because it is the lowest tier that is clearly not handling requests in time.

C.

The App tier is the bottleneck because it is the first tier not handling the same number of requests as the tier above it.

D.

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.

E.

The App tier is the bottleneck because the DB tier is handling everything the App tier sends it.

Question 10

In a three-tier application with a web front-end, application middle tier, and database back-end, where is the best instrumentation point for end-to-end visibility?

Options:

A.

It is best to instrument at all tiers for maximum visibility.

B.

It is best to instrument at the web tier, since that is typically the client entry point into the application.

C.

It is best to instrument at the application tier, since it sits between the web and database tiers.

D.

It is best to instrument at the database tier, since it holds the data the client is requesting.

Question 11

The AppInternals Xpert Transaction Trace Warehouse can extract usernames from transactions:

Options:

A.

Through parsers that extract information from packets

B.

Through an integration with Lightweight Directory Access Protocol (LDAP)

C.

From an application's config file

D.

From the method getRemoteUser() of the HttpServletRequest object

Question 12

With AppInternals Xpert, how are SQL queries captured?

Options:

A.

An agent installed on the database

B.

AppResponse Xpert Appliance capturing traffic

C.

Agent installed on application server

D.

Agent installed on web server

Question 13

What useful information can you get from AppResponse Xpert (ARX) database browsing insights? (Select 3)

Options:

A.

Response time for SQL statements

B.

Database usage by application and user

C.

It tracks throughput in terms of database calls, transactions, rows, bytes, and active sessions.

D.

A link to "View Database SQL queries" insights

Question 14

What is the maximum number of transactions stored by Transaction Trace Warehouse (TTW)?

Options:

A.

Infinite

B.

1 billion

C.

Last 3 years' worth

D.

Infinite, but dependent on disk size

E.

Last years' worth

F.

Previous weeks' worth

Question 15

What granularity of data is available on the Service Management Platform (SMP)? (Select 2)

Options:

A.

1 minute

B.

5 minutes

C.

1 second

D.

15 minutes

Question 16

What is the default filter name used when importing a trace in transaction analyzer?

Options:

A.

Default

B.

AppTransaction Xpert does not filter a trace during import.

C.

None

D.

Use trace explorer first to filter a trace before trying to import it in transaction analyzer.

Question 17

Refer to the exhibit from the AppDoctor.

The primary bottleneck is probably due to:

Options:

A.

Processing at client

B.

Chattiness

C.

Packet loss

D.

Processing at server

E.

Latency

Question 18

What default time does AppTransaction Xpert use to detect user think time?

Options:

A.

1 second

B.

2 seconds

C.

10 seconds

D.

AppTransaction Xpert uses its own heuristic to detect user think time.

Question 19

Which of these would you use to determine how varying latencies, bandwidths, and other network parameters affect an application transaction's performance?

Options:

A.

Quick predict

B.

Path probe

C.

AppDoctor

D.

Distributed agent controller

Question 20

AppDoctor's Summary of Delays divides the total application response time into the following categories:

Options:

A.

Server processing, network latency, and user think time

B.

Tier processing, latency, bandwidth, protocol, and congestion

C.

Application server, database execution, and browser rendering

D.

Connection setup, server response, payload, retransmissions, round trip, and user response

Question 21

For BrowserMetrix, the "time to first byte" and "download and render" time is considered:

Options:

A.

Back-end delay

B.

Front-end delay

C.

Network delay

D.

Server delay

Question 22

Which of these are not available to instrument a web application with BrowserMetrix?

Options:

A.

Use Riverbed Steelhead to inject the script at run time from the web server.

B.

Use Riverbed Stingray to inject the script at run time from the web server.

C.

Manually paste the Javascript in any web page you want to monitor with BrowserMetrix.

D.

Edit a master file for the application by adding the Javascript to the header section of the file.

Question 23

How can you change the AppResponse Xpert BrowserMetrix default web user interface communication ports?

Options:

A.

Ports cannot be changed after the installation.

B.

Change the server.xml HTTP_PORT and HTTPS_PORT specifications in the installation folder.

C.

Changes are need on both server.xml and bindings-jboss-beans.xml.

D.

Log in to the BrowserMetrix default web user interface.

Question 24

Each of the "dots" you see in the BrowserMetrix user interface represent:

Options:

A.

An end-user page view

B.

The web server tier

C.

The web application

D.

The server node for the transaction

Question 25

Safari seems to outperform other browsers in its response time report. Why is its "time to first byte" so much shorter than other browsers? (Select 2)

Options:

A.

Safari does not support the W3C Navigation Timing specification.

B.

Safari is a more responsive browser.

C.

BrowserMetrix does not process "time to first byte" currently.

D.

This is the user's first visit to the site or the previous page was not one of the instrumented pages.

Question 26

What metric is used to check if web transaction analysis (WTA) is not overloaded with too much traffic to monitor?

Options:

A.

number of TCP connections / min (for HTTP/HTTPS sessions only)

B.

number of total page views / min

C.

number of HTTP requests / min

D.

number of unique URLs / min

Question 27

Which performance layers which make up the user response time curve in the Response Time Composition Chart (RTCC)? (Select 4)

Options:

A.

Round trip time (inbound)

B.

Connection setup time

C.

Payload transfer time

D.

Server response time

E.

Retransmission delay

Question 28

A TCP turn in AppResponse Xpert is defined as:

Options:

A.

A change in direction in the data exchange

B.

One full TCP data request-response cycle

C.

A TCP connection that finishes with a FIN-ACK connection close

D.

The TCP three-way handshake (SYN, SYN-ACK, ACK)

E.

Data sent between TCP keepalives

Question 29

The snapshot buffer is used for:

Options:

A.

Taking a snapshot of AppResponse Xpert configuration information

B.

Allowing the appliance to capture higher levels of traffic during bursts

C.

Storing projects and other user-defined views

D.

To store and persist packet traces when user-defined thresholds are exceeded

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