Caching Techniques Fresco Play MCQs Answers

Caching Techniques Fresco Play MCQs Answers

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Course Path: Microservices/CACHING/Caching Techniques

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Quiz on Introduction to Caching

1.Which type of caching can be used to cache the contest registration page in a website, to reduce the time taken to display the page for the users?

1. Application Cache
2. Data Cache
3. Browser Cache
4. Web Cache

Answer: 1)Application Cache

2.A cache is a ______________.

1. Copy of data
2. Data storage format
3. Data backup
4. Small and fast memory

Answer: 4)Small and fast memory

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Quiz on Distributed Cache Types

1.In which type of cache does the application directly interacts with database for data that is not available in the cache?

1. Read Through Cache
2. Write Through Cache
3. Cache-aside
4. Local Cache

Answer: 3)Cache-aside

2.In which type of cache does the application treats cache as the main data store, reads data from it and writes data to it? (I) Read Through/Write Through Cache (II) Cache-aside

1. I and II
2. II
3. None of the options
4. I

Answer: 4)I

Quiz on Cache Organization and Locality

1.Which of the following is true about a well-designed cache?

1. Hit Time > Miss Time
2. Hit Rate < Miss Rate
3. Hit Rate == Miss Rate
4. Hit Rate > Miss Rate

Answer: 4)Hit Rate > Miss Rate

2.Which type of cache reference locality aims at designing cache to store the entire block near the Recently Referenced Data? (I) Temporal Locality (II) Spatial Locality

1. I
2. None of the options mentioned
3. II
4. I and II

Answer: 3)II

3.A web page displays ten items per page and has pagination enabled. What would be the recommended way to enable efficient paging?

1. Perform in-memory paging
2. Use Spatial Cache
3. Hit the database every time the user moves to the next page
4. Use Temporal Cache

Answer: 2)Use Spatial Cache

4.Which of the following types of data exhibits Spatial Locality?

1. Look Up Table
2. All the options mentioned
3. Array
4. Counter

Answer: 3)Array

Quiz on Cache Operations

1.Which type of cache is recommended to store user preferences for an application with several 100s of concurrent users?

1. Primed Cache
2. On Demand Cache
3. Data Cache
4. Near Cache

Answer: 2)On Demand Cache

2.The primary objective of Cache Coherence is to ensure __________.

1. Data Consistency across all local caches
2. Improved Cache Performance
3. Improved Cache Resilience

Answer: 1)Data Consistency across all local caches

3.Caching Technique where cache is populated the first time a certain piece of data is requested is called _________.

1. Lazy Loading
2. Local Population
3. Upfront Loading
4. Cache aside

Answer: 1)Lazy Loading

4.While using a Write Back cache, which of the following policies needs to be abided?

1. Write Around
2. Write Through
3. No Write Allocate
4. Write Allocate

Answer: 4)Write Allocate

Caching Techniques Final Assessment

1.A byte addressable direct-mapped cache has 1024 blocks/lines, with each block having eight 32-bit words. How many bits are required for block offset, assuming a 32-bit address?

1. 10
2. 15
3. 3
4. 5

Answer: 4)5

2.A cache has 1024 blocks, and each block can contain 1024 bits of data. What is the size of the cache?

1. 0.25 MB
2. 1 MB
3. 0.125 MB
4. 0.5 MB

Answer: 3)0.125 MB

3.Cache Performance or Average Memory Access Time (AMAT) depends on which of the following?

1. All options mentioned
2. Frequency of Cache Miss
3. Time taken to get data from main memory
4. Time taken to get data from cache

Answer: 1)All options mentioned

4.Line size in a cache is recommended to be a power of 2.

1. True
2. False

Answer: 1)True

5.Which of the following in a cache address specifies the exact location in the cache line where the requested data exists?

1. Tag
2. Block Offset
3. Block Number
4. Block Index

Answer: 2)Block Offset

6.When a computer processor does not get a data item that it requires in the cache, it is known as _________.

1. Cache Miss
2. Cache Read
3. Write Miss
4. Cache Hit

Answer: 1)Cache Miss

7.In which type of cache does the application directly interacts with database for data that is not available in the cache?

1. Cache-aside
2. Write Through Cache
3. Read Through Cache
4. Local Cache

Answer: 1)Cache-aside

8.For a cache look up to be a Hit, which of the following must be true?

1. Tag==Block Number and Valid Bit = 1
2. Tag==Block Number and Valid Bit = 0
3. Tag==Block Offset and Valid Bit = 1
4. Tag==Block Offset and Valid Bit = 0

Answer: 1)Tag==Block Number and Valid Bit = 1

9.Which type of cache reference locality aims at designing cache to store Recently Referenced Data assuming that the same data will be requested frequently?

1. Spatial Locality
2. Either Temporal or Spatial
3. None of the options
4. Temporal Locality

Answer: 4)Temporal Locality

10.Which of the following is true about the cache?

1. Line size > Block size
2. Line size == Block size
3. None of the options mentioned
4. Line size < Block size

Answer: 2)Line size == Block size

11.Which would be the best place to cache DNS data?

1. Proxy
2. Data
3. Application
4. Browser

Answer: 1)Proxy

12.Which of the following is used to determine if a piece of data that needs to be written back to the cache?

1. Dirty Bit = 1
2. Valid Bit = 1
3. Dirty Bit = 0
4. Valid Bit = 0

Answer: 1)Dirty Bit = 1

13.Which Caching Topology is recommended for a read intensive distributed application?

1. Local Cache
2. Replicated
3. Near Cache
4. Partitioned

Answer: 2)Replicated

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