1. Which of the following RDBMS is used by LAMP?
a) SQL Server
b) DB2
c) MySQL
d) All of the mentioned
Explanation: MySQL is the database server developed by the Swedish company MySQL AB, owned by Oracle Corporation through its acquisition of Sun Microsystems.
2. Which of the following is a critical step in capacity planning?
a) Predict the future based on historical trends and other factors
b) Load the system until it is overloaded
c) Deploy or tear down resources to meet your predictions
d) All of the mentioned
Explanation: Knowing when systems fail under load and what factor(s) is responsible for the failure is the critical step in capacity planning.
3. Which of the following is the hardest factor to determine?
a) Network performance
b) Network capacity
c) Network delay
d) All of the mentioned
Explanation: It is the goal of a capacity planner to identify the critical resource that has this resource ceiling and add more resources to move the bottleneck to higher levels of demand.
4. Point out the correct statement.
a) Page views or hits on the Web site, as measured in transactions per second
b) Transactions completed on the database server, as measured by hits per second
c) Performance logs are a primary source of data that everyone should have available for planning purposes
d) All of the mentioned
Explanation: There are two important overall workload metrics in the LAMP system.
5. Which of the following tool captures time-dependent performance data from resources such as a CPU load?
a) RBTool
b) RRDTool
c) Perfmon
d) None of the mentioned
Explanation: RRDTool stands for the Round Robin Database tool.
6. Point out the wrong statement.
a) The total workload might be served by a single server instance in the cloud
b) Performance logs are the only source of performance measurements
c) The amount of resources to be deployed depends upon the characterization of the Web servers involved, their potential utilization rates, and other factors
d) All of the mentioned
Explanation: Performance logs are not the only source of performance measurements.
7. Which of the following is used as an Open source distributed monitoring system?
a) Dstat
b) GraphClick
c) Ganglia
d) None of the mentioned
Explanation: GraphClick is a digitizer that can create a graph from an image.
8. Which of the following is not a commercial third-party Web site performance monitor?
a) Keynote
b) Munin
c) Gomez
d) All of the mentioned
Explanation: Munin is open source network resource monitoring tool.
9. Which of the following is available as both open source and commercial version?
a) Zabbix
b) ZenOSS
c) SiteUpTime
d) All of the mentioned
Explanation: ZenOSS is used to monitor operations.
10. Which of the following testing seeks to answer maximum load that my current system can support?
a) Load
b) Security
c) Navigation
d) All of the mentioned
Explanation: Load testing is also referred to as performance testing, reliability testing, stress testing, and volume testing.