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CompTIA DA0-001日本語 Exam Syllabus Topics:
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Reference: https://www.comptia.org/training/books/data-da0-001-study-guide
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Understanding CompTIA DA0-001 Exam Topics
Visualizing and reporting data
Manipulating data
Applying basic statistical methods
Mining data
Analyzing complex datasets while adhering to governance and quality standards throughout the entire data life cycle
CompTIA Data+ Certification Exam (DA0-001日本語版) Sample Questions:
データ アナリストは、正確性を保つために、データ セットに品質管理の概念を適用する必要があります。これを行うための最適な方法はどれですか。
- A. クロスバリデーション
- B. パラメータ化
- C. 暗号化
- D. 標準化
Correct Answer: A 🗳️
データ アナリストは、会社の年間収益データ セットを使用してダッシュボードを作成する必要があります。最もパフォーマンスの高い地域を示す情報をプロットする最適な方法は次のうちどれですか?
- A. 折れ線グラフ
- B. ウォーターフォールチャート
- C. 積み上げ棒グラフ
- D. ヒートマップ
Correct Answer: C 🗳️
イリノイ州のある郡は、世帯あたりの平均年収を決定するための調査を行っています。郡の面積は 427 平方マイル (2.65q km) である。次のサンプリング方法のうち、代表的なサンプルになる可能性が最も高いのはどれですか?
- A. 郡内の 100 戸建て住宅に送信される体系的な調査
- B. 午後2時から午後3時までに実施する100名の層別電話調査
- C. 郡のオフィスから 5 マイル (8 km) 以内にある無作為に選択された 10 の家庭に送信された調査
- D. 人口を反映する、無作為に選択された 100 世帯に送信された調査
Correct Answer: D 🗳️
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売りに出されている住宅に関する情報を含む次のデータセットを考えてみましょう。
次の文字列操作コマンドのうち、住所と地域名の列を組み合わせて完全な住所を作成するのはどれですか?
full_address------------------------- 85 Turner St、ノーザン メトロポリタン 25 Bloomburg St、ノーザン メトロポリタン 5 Charles St、ノーザン メトロポリタン 40 Federation La、ノーザン メトロポリタン55a パーク ストリート、ノーザン メトロポリタン
- A. SELECT CONCAT(address, '-' , regionname) AS full_address FROM melb LIMIT 5;
- B. SELECT CONCAT(regionname, ' , ' , address) AS full_address FROM melb LIMIT 5
- C. SELECT CONCAT(address, ' , ' , regionname) AS full_address FROM melb LIMIT 5;
- D. SELECT CONCAT(regionname, '-' , address) AS full_address FROM melb LIMIT 5;
Correct Answer: C 🗳️
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コンサート会場のアナリストが、最近のイベントのチケット販売枚数を分析しています。販売枚数は、以下のどの種類のデータに該当しますか？
- A. 連続
- B. 離散
- C. 序数
- D. 名目値
Correct Answer: B 🗳️
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