Exam Resources

Past Exams By Year

Semester	Midterm 1	Midterm 2	Final
2024 Fall	N/A¹	Blank (Solutions)
2024 Summer	N/A¹	Blank (Solutions)	Blank (Solutions)
2024 Spring	N/A¹	Blank (Solutions)	Blank (Solutions)
2023 Fall	N/A¹	Blank (Solutions)	Blank (Solutions)
2023 Summer	N/A¹	Blank (Solutions)	Blank (Solutions)
2023 Spring	N/A¹	Blank (Solutions)	Blank (Solutions)
2022 Summer	N/A¹	Blank (Solutions)	Blank (Solutions)
2022 Spring	N/A¹	Blank (Solutions)	Blank (Solutions)
2021 Fall	N/A¹	Blank (Solutions)	Blank (Solutions)
2021 Spring	N/A¹	Blank (Solutions)	Blank (Solutions, Rewritten²)
2020 Fall	Blank (Solutions, Rewritten²)³	Blank (Solutions, Rewritten²)	Blank (Solutions)
2020 Summer	Blank (Solutions)	Blank (Solutions)	Blank (Solutions)
2020 Spring	Blank (Solutions, Rewritten²)	Cancelled	Blank (Solutions, Rewritten²)
2019 Fall	Blank (Solutions)³	Blank (Solutions)	Blank (Solutions)
2019 Summer	Blank (Solutions)	Blank (Solutions)	Blank (Solutions)
2019 Spring	Blank (Solutions)	Blank (Solutions)	Blank (Solutions, Rewritten²)
2018 Fall	Blank (Solutions)³	Blank (Solutions, Videos)	Blank (Solutions)
2018 Summer	Blank (Solutions)	Blank (Solutions)	Blank (Solutions)
2018 Spring	Blank (Solutions)	Blank (Solutions)	Blank (Solutions)
2017 Fall	Blank (Solutions)	Blank (Solutions)	Blank (Solutions)
2015 Fall⁴			Blank (Solutions)
2015 Spring⁴			Blank (Solutions)

HKN and TBP have archived more past exams.

61C changed from 2 midterms to 1 midterm starting in Spring 2021. The midterm is somewhere in-between the 2-midterm equivalent in terms of scope, but closer to midterm 2.

These are extremely rough drafts of rewritten solutions. They definitely contain errors and unfinished sections, but might have some useful parts for studying.

Quests are shorter than midterms and held earlier in the semester, before the drop deadline.

⁴

Before Fall 2017, CS 61C was taught using the MIPS ISA. The assembly and datapath exam problems from this period are less beneficial to review.

Forum Q&A About Past Exams

Semester	Links
2022 Summer	Past Exams 2022 Q&A (Midterm) Past Exams 2022 Q&A (Final) Past Exams 2021 Q&A (Midterm) Past Exams 2021 Q&A (Final) Past Exams 2020 Q&A (Midterm) Past Exams 2020 Q&A (Final) Past Exams 2019 and Older Q&A (Midterm) Past Exams 2019 and Older Q&A (Final)
2022 Spring	Past Exams 2021 Q&A (Midterm) Past Exams 2021 Q&A (Final) Past Exams 2020 Q&A (Midterm) Past Exams 2020 Q&A (Final) Past Exams 2019 Q&A (Midterm) Past Exams 2019 Q&A (Final) Past Exams 2018 and Older Q&A (Midterm) Past Exams 2018 and Older Q&A (Final)
2020 Summer	Past Exams 2020 Q&A Past Exams 2019 Q&A Past Exams 2018 Q&A Past Exams 2017 Q&A Past Exams 2016 and Older Q&A
2020 Spring	Past Exams 2019 Q&A Past Exams 2018 Q&A Past Exams 2017 Q&A Past Exams 2016 and Older Q&A

Video Walkthroughs for Past Exams

Semester	Links
2023 Spring	Midterm
2022 Summer	Midterm Final
2022 Spring	Midterm Final
2021 Spring	Final
2020 Fall	Midterm: Bit Manipulations Midterm: Slip
2020 Summer	Midterm
2019 Summer	Midterm: Q1 Potpourri Midterm: Q2 FSM Midterm: Q3 C Coding Midterm: Q4 RISC-V Midterm: Q5 Data-Level Parallelism Midterm: Q6 RAID and ECC Midterm: Q7 Caches Midterm: Q8 Spark Midterm: Q9 Datapath Midterm: Q10 Digital Logic Midterm: Q11 Virtual Memory
2019 Spring	Final

Past Exams By Topic

Number Representation

Fall 2021 Midterm Q1.5-1.8 (solution)
Spring 2021 Final Q8 (solution)
Spring 2021 Midterm Q1 (solution)
Fall 2020 Final S1.Q1A (solution)
Fall 2020 Quest Q1.1, Q1.3 (solution)
Summer 2020 Final Q11A (solution)
Summer 2020 Midterm 1 Q5 (solution)
Spring 2020 Final Q1A, Q1D (solution)
Spring 2020 Midterm Q2 (solution)
Fall 2019 Final Q10h (solution)
Fall 2019 Final Q2 (solution)
Fall 2019 Quest Q1, Q2, Q3 (solution)
Summer 2019 Midterm 1 Q1 (solution)
Fall 2018 Quest Q1 (solution)
Summer 2018 Midterm 1 Q1 (solution)
Spring 2018 Final Q1A, Q1B (solution)
Spring 2018 Midterm 1 Q1 (solution)
Fall 2018 Midterm Q1 A-D (solution, videos: 1A 1B 1C 1D)
Fall 2015 Final MT2-5 (solutions, video)
Spring 2015 Final M1-1AB (solutions, video)

C Programming

C / Memory Model

Floating Point

RISC-V Programming

Fall 2021 Final Q3 (solution)
Fall 2021 Midterm Q6 (solution)
Fall 2021 Midterm Q5 (solution)
Spring 2021 Final Q10A (solution)
Spring 2021 Final Q6B (solution)
Spring 2021 Midterm Q4 (solution)
Fall 2020 Final S2.Q5 (solution)
Fall 2020 Midterm Q3B (solution)
Summer 2020 Final Q10 (solution)
Summer 2020 Midterm 1 Q3B-D (solution)
Spring 2020 Final Q7C (solution)
Spring 2020 Midterm Q7 (solution)
Fall 2019 Final Q4 (solution)
Fall 2019 Final Q2b (solution)
Fall 2019 Midterm Q4 (solution)
Summer 2019 Final Q4 (solution)
Summer 2019 Midterm 1 Q5 (solution)
Fall 2018 Final M3 (solution)
Fall 2018 Quest Q4 (solution)
Summer 2018 Final Q3 (solution)
Summer 2018 Midterm 1 Q3 (solution)
Spring 2018 Final Q3 (solution)
Spring 2018 Midterm 1 Q6 (solution)
Fall 2017 Final Q4 (solution)
Fall 2018 Midterm Q4 C-E (solutions, videos: 4C 4D&E)

RISC-V Instruction Formats

Spring 2021 Final Q10B (solution)
Fall 2020 Midterm Q3A (solution)
Summer 2020 Final Q13 (solution)
Summer 2020 Midterm 1 Q3A (solution)
Spring 2020 Final Q1C (solution)
Fall 2019 Final Q10h (solution)
Fall 2019 Final Q4 (solution)
Fall 2019 Final Q2c (solution)
Summer 2019 Midterm 2 Q1 (solution)
Summer 2018 Midterm 1 Q5 (solution)
Spring 2018 Midterm 2 Q1F-H (solution)
Spring 2018 Midterm 1 Q5 (solution)
Fall 2018 Midterm Q4 A,B (solutions, videos: 4A 4B)

CALL

SDS

Boolean Algebra

FSMs

Single-Cycle Datapath & Control

Pipelining & Hazards