1. In QuarkChain consensus algorithm a double spend attacker has to create

A. Longer Block Chain

B. Minor Block that revert transaction

C. Minor Blocks and Longer root chain

2. Currently QuarkChain uses network simulation to stimulate _____ and ____ that potentially allows the verification of incentive mechanism and difficulty algorithm in early stage.

A. 18 – nodes and 4 shard network

B. 36 – nodes and 18 shard network

C. 18 – nodes and 18 shard network

D. 18 – nodes and 8 shard network

3. The targeted block duration of 8 minor block chains in QuarkChain network is

A. 100s B. 50s C. 10s

4. The targeted block duration of Root block chains in QuarkChain network is

A. 150s B. 100s C. 50s

5. If the hash power of the root chain is 100% then the system of QuarkChain network becomes

A. Multiple Blockchian system

B. Single Blockchain system

C. Dependent Blockchain system

6. If the hash power of the root chain is 0% then the system of QuarkChian network becomes

A. Multiple Blockchian system

B. Single Blockchain system

C. Dependent Blockchain system

7. The 50% hash power allocation on the root chain of the QuarkChain network makes the system

A. Less secure, More scalability, Centralisation

B. Highly Secure, Less Scalability, More Decentralisation

C. Highly Secure, High Scalability, More Decentralisation

8. A weak miner at QuarkChian network needs to join a mining pool to collect its reward

A. Yes B. No C. Weak miners are not entertained

9. On which of the following important values the QuarkChain network is developed

(i) Usuability (ii) Centralisation (iii) Security (iv) Scalability (v) Decentralisation

A. i, ii, iii, iv

B. iii, iv, v

C. i, iii, iv, v

D. i, ii, iii, iv, v

10. Super Full Node in the QuarkChian network validates

A. All minor blocks

B. All Root chain blocks

C. All minor blocks and root chain blocks

D. Does not have concept of Super full node in QuarkChain

11. The super full node is very expensive in high throughput blockchain system. In what way QuarkChain addresses the above concern

A. By allowing a single node

B. By allowing multiple and honest nodes

C. QuarkChain team is still working on this issue

12. At the time of validation if one node crashes in the cluster then ____

A. Rest of the nodes will be able to fully validate

B. Rest of the nodes cannot validate as any two other nodes cannot form the cluster

C. The new cluster has to be formed by losing existing nodes and its sub transactions

13. In the system of QuarkChain network what is In-Shard transaction?

A. In-Shard transactions are not supported by QuarkChain

B. Input and Output addresses of transactions are in the same shard

C. Input and Output addresses are in different shards

14. In the system of QuarkChain network what is Cross-Shard transaction?

A. In-Shard transactions are not supported by QuarkChain

B. Input and Output addresses of transactions are in the same shard

C. Input and Output addresses are in different shards

15. Synchronisation between two shards takes place in

A. In-Shard Transactions

B. Cross shard transactions

C. Both

D. None

16. Cross shard transactions can be confirmed in ____

A. Minutes B. Hours C. Days

17. Which of the following statements are True for Simple Account Management

A. Creates multiple accounts for different shards

B. Users cannot choose advanced way to manage their addresses

C. One account to manage all addresses in all shards

18. With the current QuarkChain design architecture the following methods are approachable

(i) In-shard (ii) Cross-Shard (iii) Cross- chain

A. Only i and ii

B. only ii and iii

C. i, ii, iii

19. The two layered structure of QuarkChain network makes ____ flexibility

A. On- Chain Transactions

B. Off- Chain Transactions

C. Both

D. None

20. Which of the following statements are true on Smart Contracts

(i) Supports smart contracts via Ethereum Virtual Machine (EVM)

(ii) dApps built on top of EVM can be directly deployed on QuarkChain platform

A. Only A is true

B. Only B is True

C. Both are True

D. None of these

21. In Account Management QuarkChain network the primary account holds __

A. Address of the user in default shard

B. Manages the address of the user in the rest of the shards (other than default shard address)

C. Primary account does not exist

22. In Account Management QuarkChain network the Secondary account holds

A. Address of the user in default shard

B. Manages the address of the user in the rest of the shards (other than default shard address)

C. Secondary account does not exist

23. Which of the following statement is true

(i) Account management in QuarkChain ensures that the balance of the user should be in the primary account most of the times

(ii) User need to manage the balances in the addresses of the secondary account

A. Only (i) B. Only (ii) C. Both (i) and (ii)

24. In Smart Wallet the typical transactions of QuarkChain network are

(i) Transfer some tokens associated with an address to another address which may be in the same shard

(ii) Transfer some tokens associated with an address to another address which may be in the different shard

(iii) Execute smart contract in a specific shard

A. Only i , ii B. only ii, iii C. only i, iii D. i, ii, iii

NOTE: PLEASE UPVOTE!!! Answers will be released in the comments. Questions related to Road Map and Team members are not covered in Quiz 1 and Quiz 2 @quarkchain