In Android, what is the name of the runtime environment introduced in Android 5.0 to replace Dalvik? MCQ with Answer and Explanation

In Android, what is the name of the runtime environment introduced in Android 5.0 to replace Dalvik?
A. ART (Android Runtime)
B. Dalvik 2.0
C. Google Runtime
D. JVM
Answer: Option A
Solution (By JKSSB Mock Tests)
ART (Android Runtime) replaced Dalvik with ahead-of-time (AOT) compilation, improving performance and reducing startup time.

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Practice More Operating Systems Questions

Question #1
Which Linux command is used to add a group to the system?
A. addgroup
B. newgrp
C. groupmod
D. groupadd

Correct Answer: Option D


Explanation:
groupadd creates a new group; addgroup is a friendlier front-end on Debian.

This question belongs to: Computer Operating Systems
Question #2
What scheduling algorithm prioritizes processes based on their remaining computation requirements, preempting a running process if a shorter task enters the ready queue?
A. Round Robin (RR)
B. Static Priority Scheduling
C. Shortest Remaining Time First (SRTF)
D. First-Come, First-Served (FCFS)

Correct Answer: Option C


Explanation:
Shortest Remaining Time First (SRTF) is a preemptive variant of SJF that continuously evaluates remaining runtime, switching to shorter newly arrived tasks.

This question belongs to: Computer Operating Systems
Question #3
What structural component converts high-level programming instructions directly into a series of system calls handled by the operating system kernel?
A. Hardware Abstraction Layer
B. API Framework or Standard Runtime Libraries
C. Master Boot Sector
D. BIOS Chipset

Correct Answer: Option B


Explanation:
Application Programming Interfaces (APIs) and runtime libraries bridge user applications to the underlying system calls of the operating system kernel.

This question belongs to: Computer Operating Systems