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DescriptionQ1071
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Q1071ArchGoogleASIC interview problem

Compare true LRU with tree PLRU

TechniquesArchitectureCacheLRUReplacement policy
DifficultyMedium
TopicComputer Architecture
LanguageSystemVerilog
Format4 choices
01

Problem

A four-way cache can use exact least-recently-used replacement or a three-bit binary-tree pseudo-LRU policy. Which statement is guaranteed?

02

Answer choices (4)