Download LPIC-2 Exam 201.201-450.CertLeader.2024-04-22.162q.tqb

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In the following output from top, which processes contribute to the percentage of time that the CPU spends in the state of wa?

Tasks: 193 total, 1 running, 190 sleeping, 2 stopped, 0 zombie

Cpu(s): 0.5%us, 0.3%sy, 0.0%ni, 98.2%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st

Processes waiting for user interaction.
Processes that were already closed and are waiting to be launched again.
Processes that have not been scheduled yet because they haven't been fully loaded into RAM or are inswap.
Processes waiting for IO operations to complete.

Correct answer: D

When is historical data of resource usage important? (Select THREE correct answers.)

Correct answer: ADE

Which of the following is a side effect of extensive usage of swap space?

The root filesystem may become full because swap space is always located on the system root partition.
The overall system performance may degrade because of heavy hard disk use and memoryreorganization.
Since processes always exist completely in either RAM or swap, regular RAM may become unused if thekernel does not move processes back from the swap space to memory.
The memory may become fragmented and slow down the access to memory pages. However, this canbe kept to a minimum by the regular use of memfrag -d.
Applications need to restart because their virtual memory addresses change to reflect memory relocationto the swap address area.