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UGC NET CS 2020 Question Paper & Answers

The official UGC NET CS 2020 question paper, with the official answer key. Attempt as a real timed exam (with negative marking) or switch to practice mode for instant per-question answers and explanations.

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Official PYQ

UGC NET Computer Science - June 2020 (Paper 2)

180 Mins 198 Marks
99Questions
198Max Marks

Sample questions from UGC NET Computer Science - June 2020 (Paper 2)

1A company has a choice of two languages L1 and L2 to develop a software for their client. Number of LOC required to develop an application in L2 is thrice the LOC in language L1. Also, software has to be maintained for the next 10 years. Various parameters for the two languages are given below to decide which language should be preferred for development.
ParameterL1L2
Man-year needed for developmentLOC/1000LOC/1000LOC/1000LOC/1000
Development costRs.70,000Rs.90,000
Cost of Maintenance per yearRs.1,00,000Rs.40,000
Total cost of the project includes the cost of development and maintenance. What is the LOC for L1 for which cost of developing the software with both languages must be the same?
  • A) 2000
  • B) 5000
  • C) 3000
  • D) 6000
Answer: C
2The data node and name node in HADOOP are
  • A) Worker Node and Master Node respectively
  • B) Master Node and Worker Node respectively
  • C) Both Worker Nodes
  • D) Both Master Nodes
Answer: A
3Suppose you have a Linux file system where the block size is 2K bytes, a disk address is 32 bits, and an i-node contains the disk addresses of the first 12 direct blocks of a file, a single indirect block, and a double indirect block. Approximately, what is the largest file that can be represented by an i-node?
  • A) 513 Kbytes
  • B) 513 Mbytes
  • C) 537 Mbytes
  • D) 537 KBytes
Answer: B
4Match List I with List II: ER symbols match list Choose the correct answer from the options given below:
  • A) A-II, B-IV, C-III, D-I
  • B) A-IV, B-I, C-II, D-III
  • C) A-II, B-I, C-IV, D-III
  • D) A-III, B-IV, C-I, D-II
Answer: C
5Which of the following statements is true?
  • A) The union of two context free languages is context free.
  • B) The intersection of two context free languages is context free.
  • C) The complement of a context free language is context free.
  • D) If a language is context free, it can always be accepted by a deterministic pushdown automaton.
Answer: A

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