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Android Device Monitor vs Android Profiler: A Comparison

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Questions and Answers

What is the primary advantage of multithreaded applications?

Improved real-time performance on single-core systems
Increased data corruption risk
Decreased coordination between threads
Enhanced application responsiveness (correct)

What is a common challenge faced by multithreaded applications?

Limited access to system resources
Reduced application performance
Lack of synchronization between threads (correct)
Inability to create additional execution paths

What rule should developers follow when optimizing code?

Don't do work that can be avoided (correct)
Optimize only for one specific hardware type
Avoid choosing the right algorithms and data structures
Always allocate memory unnecessarily

Which type of image format is recommended for better performance in mobile applications?

.png (B) Signup and view all the answers

What is a key recommendation to optimize power consumption in mobile applications?

Move work off the main thread (C) Signup and view all the answers

What does it mean to ensure security at the application layer?

Preventing unauthorized access to transmitted data (B) Signup and view all the answers

Which of the following is NOT a recommended practice for securely transmitting personal information over the Internet?

Ensuring data is sent in plain text (C) Signup and view all the answers

What is a key aspect of working with untrusted files in software development?

Properly validating the data before use (C) Signup and view all the answers

Why is data authenticity verification important in software development?

To prevent unauthorized tampering of data (D) Signup and view all the answers

What security measure is essential for encrypting user data on an Android device?

Symmetric encryption keys management (A) Signup and view all the answers

What are the advantages of using multithreaded applications?

Multiple threads can improve an application’s perceived responsiveness and real-time performance on multicore systems. Signup and view all the answers

What are some challenges faced by multithreaded applications?

Threads need to coordinate actions to prevent data corruption when manipulating the same data structure simultaneously. Signup and view all the answers

What are the basic rules for writing efficient code in terms of performance and optimization?

Don't perform unnecessary work and avoid unnecessary memory allocation. Signup and view all the answers

How can developers optimize power consumption in mobile applications?

Developers should allow the chip to idle when not in use, execute code in bursts, and avoid continuous polling for information. Signup and view all the answers

What are the key aspects of optimizing images for better performance in mobile applications?

Use PNG format, ensure images are the correct size, and compress images as much as possible. Signup and view all the answers

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