Poll:
14. (Computer Science) computing (in data transmission when several terminals share communications channels) to check each channel rapidly to establish which are free, or to call for data from each terminal in turn.
https://www.thefreedictionary.com/poll

one year's worth: 等于一年的。
例：
I lost one year's worth of my salary in the casino.
我在赌场输了等于我一年工资的钱；
我在赌场输了我一年的工资。



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Note added at 11 hrs (2023-08-21 18:43:11 GMT)
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Use up to one year’s worth of "as polled" network performance metrics to anticipate the capacity needed to handle future growth and changes.
使用最多相等于一年“测得的”网络性能指标来预测未来增长和变化所需的(网络)流量。

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Note added at 23 hrs (2023-08-22 06:59:39 GMT)
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worth 的另一个例子：
They found 1 million yuan worth of gold in the corrupt official's house.
他们在贪官家里搜出了价值(等于)100万元的黄金。