備考CFA考試中的知識很多的，CFA考試題也是要練習(xí)的，考生在備考CFA考試中是不是掌握這些知識呢？今天跟著小編看看CFA一級考試題，對你備考CFA考試還是有幫助的哦！

練習(xí)1：L asks whether any information needs to be specified for the ML clustering algorithms no matter which one is used. K replies that only the distance measure that the algorithm will use and the hyperparameter, k, for k-means clustering need to be specified. K's reply is:

A. correct.

B. not correct, because other hyperparameters must also be specified.

C. not correct, because the feature set for describing the measure used to group holdings must also be specified.

解析：選C。除了指定距離度量和k-means的k值之外，無論選擇哪種聚類算法，還必須指定用于根據(jù)相似性對持有物進(jìn)行分組的特征集。


練習(xí)2：L further asks whether there would be an advantage to using k-means clustering as opposed to hierarchical clustering. K replies that in his opinion, hierarchical clustering is the more appropriate algorithm. The best justification for K’s preference for hierarchical clustering in his reply is that K is most likelygiving consideration to:

A. the speed of the algorithms.

B. the dimensionality of the dataset.

C. the need to specify the hyperparameter, k, in using a k-means algorithm.

解析：選C。超參數(shù)k的值，即可以劃分的不同組的數(shù)量，是未知的，需要提前指定。使用分層算法，將觀察結(jié)果分類成簇，無需事先輸入任何信息。

備考CFA知識是很多的，考生備考CFA考試是需要通過一二三級考試的，一級考試是基礎(chǔ)，如果一級知識點掌握不清楚的話，那在今后的CFA二三級考試中是不能很好的掌握的，所以前期的備考是關(guān)鍵，如果你有什么問題可以在線咨詢老師。