In Performance Optimization of the N8500 Clustered NAS Storage Systems

question 21

Multiple Choice

In performance optimization of the N8500 clustered NAS storage systems, the top command is runand the following output is displayed: top - 01: 06: 48 up 1: 22, 1 user, load average: 0.06, 0.60, 0.48 Tasks: 29 total, 1 running, 28 sleeping, 0 stopped, 0 zombie Cpu(s) : 0.3% us, 1.0% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 191272k total, 173656k used, 17616k free, 22052k buffers Swap: 192772k total, 0k used, 192772k free, 123988k cached Which of the following statements is incorrect?

• A) up 1:22 indicates the current system time.
• B) load average indicates the average length of task queues.
• C) 0.3% us in Cpu(s) indicates the CPU occupation percentage of user space.
• D) 17616k free in Mem indicates the total capacity of free memory.

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Definitions:

Gene Pools

The complete set of unique alleles within a species or population, representing genetic diversity.

Acquired Characteristics

Traits that are gained by an organism after birth as a result of external influences or its own actions, not inherited genetically.

Lysenko

A controversial figure in the history of Soviet biology, Trofim Lysenko rejected Mendelian genetics in favor of his own agricultural theories, leading to widespread agricultural disaster.

Natural Selection

A fundamental mechanism of evolution where organisms better adapted to their environment are more likely to survive and reproduce.