object(stdClass)#115 (6) { ["pageType"]=> string(4) "quiz" ["pageId"]=> int(1599837) ["pageOwner"]=> int(1270748) ["pageUrl"]=> string(0) "" ["language"]=> string(7) "english" ["disabled"]=> bool(false) } Latency Numbers for System Design
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Latency Numbers for System Design

These are not accurate Latency numbers but these are latency numbers that are usable in designing computer systems. Order of the latency is what matters. So, round the number to the order closest to your actual guess - ns denotes nano second - us denotes micro second - ms denotes milli second - The numbers are always powers of 10 followed by a time unit. - 50 ns will round to 10 ns - 80 us will round to 100 us
Quiz by rutu14
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Last updated: December 3, 2022
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First submittedDecember 3, 2022
Times taken1
Average score66.7%
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Hint
Answer
L2 Cache Access
10 ns
Redis Read
100 ns
RAM Access
100 ns
HDD disk seek
10 ms
Packet travels from West Coast to Europe and back
100 ms
Hint
Answer
SSD Read
100 us
Memcached sends data over 1 Gbps network
10 us
RDBMS Database insert
1 ms
L1 Cache Access
1 ns
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