GATE CS 2021 Set 1 mock test: the full paper, timed and marked

Sections

Section	Questions	Marks
General Aptitude	10	15
Computer Science and Information Technology	55	85

General Aptitude (GA): Q.1 to Q.5 carry 1 mark each (negative marking 1/3 for MCQ); Q.6 to Q.10 carry 2 marks each (negative marking 2/3 for MCQ).
Computer Science and Information Technology (CS): Q.11 to Q.35 carry 1 mark each; Q.36 to Q.65 carry 2 marks each.
Negative marking applies only to MCQ questions (1/3 mark deducted for 1-mark MCQ, 2/3 mark deducted for 2-mark MCQ). No negative marking for MSQ or NAT questions.

MCQ: one option is correct. A wrong answer loses 1/3 mark on a 1-mark question and 2/3 mark on a 2-mark question.
MSQ: one or more options are correct. Marks are given only when every correct option and no other is selected. There is no partial marking and no negative marking.
NAT: enter a number. Any value inside the accepted range is correct. There is no negative marking.
A question left unanswered scores zero.
Where the official answer key gave a question's marks to every candidate, you get those marks too. Where it accepted more than one answer, each of them is marked correct here.

An answer counts only after you press Save & Next or Mark for Review & Next. A selection you leave without saving stays on screen for when you come back, but it is not marked.
An answer that is marked for review is still marked.
Clear Response removes your answer to the question on screen.
The clock starts when you press Start and does not stop: closing or refreshing the page keeps your answers and keeps the clock running.
When the time is up the test is submitted for you, with the answers you have saved.
A scientific calculator is on the screen throughout. No other calculator is needed.
Questions are numbered 1 to 65 in the order of the paper. Your answers and your result are kept in this browser only.

I have read how the test works.