GIOS P2L5 - Part 2
Authored by Blair Bass
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University
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one way to circumvent the issue of a user level thread blocking the entire process in the event-driven model?
Use asynchronous I/O operations
Use synchronous I/O operations
Use multithreaded kernel
Use multithreaded boss/workers configuration
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using helpers in the event-driven model?
To handle blocking I/O operations and interact with the event dispatcher
To perform asynchronous system calls
To fake asynchronous I/O operations
To optimize network hardware
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which model requires the use of processes as helpers when the kernel is not multithreaded?
Asymmetric Multi-Process Event-Driven Model (AMPED)
Asymmetric Multi-Threaded Event-Driven Model (AMTED)
Multiprocess and Multithreaded Model
Single Process Event-Driven (SPED) Model
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one benefit of using the AMPED model in the event-driven system?
It resolves portability issues and fakes asynchronous I/O operations
It provides a smaller memory footprint and faster synchronization
It allows for better event routing on multi CPU systems
It improves the performance of disk-bound workloads
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which web server model follows the AMPED model and uses asymmetric helper processes for blocking I/O operations?
Flash Web Server
Apache Web Server
Zeus Web Server
CS Web Server
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of workload did the authors use in their experiments to evaluate the performance of the Flash web server?
Real-world traces from Rice University web server
Real-world traces from student-run websites
Synthetic workload generator
All of the above
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What metric did the authors use to measure the performance of the web servers in their experiments?
Bandwidth
Execution time
Throughput
Connection rate
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