CS计算机代考程序代写 SQL python database Java file system hadoop algorithm Preview Test: INFS3208 Semester Two Final Examination 2020

Preview Test: INFS3208 Semester Two Final Examination 2020

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received any unauthorised assistance on this examination”.

You need to answer all of the questions in the Blackboard Test.

QUESTION 1

What are the cloud delivery models for Virtual Machine and Google
App Engine, respectively?

SaaS and PaaS
IaaS and PaaS
IaaS and SaaS
None of the above

1 points Save Answer

QUESTION 2

Which pre-existing technology is NOT considered to be one of the
primary in�uences on cloud computing?

Clustering technology
Encryption technology
Grid Computing technology
Virtualisation technology

1 points Save Answer

QUESTION 3

What computing resources do cloud users need to manage in
Platform-as-a-service?

Networking and storage
Operation system
Application and data
None of the above

1 points Save Answer

QUESTION 4

Which of the following software that lets you run multiple virtual
machines on one physical server machine?

Host operation system
Guest operating system
Virtual machine management or hypervisor
None of the above

1 points Save Answer

QUESTION 5

Which of the following is NOT correct about container?

An image cannot be changed after it was create

The container can share the kernel of the host operation system
but can provide user isolation.

From one image you can create multiple containers.

When constructing an image, each layer in the image can be
changed after it has been constructed

1 points Save Answer

QUESTION 6

Which of the following tools can help you manage multiple containers
on one single machine?

Docker�le

Docker-compose

Docker machine

Docker-swarm and Kubernetes

1 points Save Answer

QUESTION 7

Deploying MySQL, Redis, Nginx, and PHP services into ONE container
makes it easier to scale horizontally and reuse container.

True
False

1 points Save Answer

QUESTION 8

In GFS (Google File System) �les are divided in ____________ chunks.
Variable size
Fixed size
Both �xed size and variable size
None of the above

1 points Save Answer

QUESTION 9

Which of the following is belonged to Cluster File System?
Sun Network File System (NFS)
Hadoop Distributed File System (HDFS)
Common Internet File System (CIFS)
Google’s Bigtable

1 points Save Answer

QUESTION 10

Apache Spark has language API’s in _________
Scala
Java
Python
All of the above

1 points Save Answer

QUESTION 11

Which Cluster Manager does Spark support?

Standalone Cluster Manager

MESOS

YARN

All of the above

1 points Save Answer

QUESTION 12

Which of the following operations is NOT a transformation?

�atmap

�lter

reduce

reduceByKey

1 points Save Answer

QUESTION 13

Which of the following is true for Spark SQL?
It is the kernel of Spark
Provides an execution platform for all the Spark applications
It enables users to run SQL / HQL queries on the top of Spark.
Enables powerful interactive and data analytics application across
live streaming data

1 points Save Answer

QUESTION 14

Which of the following is true for RDD?
We can operate Spark RDDs in parallel with a low-level API
RDDs are similar to the table in a relational database
It allows the processing of a large amount of structured data
It has built-in optimization engine

1 points Save Answer

QUESTION 15

Which of the following is NOT a NoSQL database?
MySQL
Redis
MongoDB
Cassandra

1 points Save Answer

QUESTION 16

Which of the following statements is WRONG?

NoSQL databases require that schemas be de�ned before you
can add data

NoSQL databases are built to allow the insertion of data without
a prede�ned schema

Transaction properties (ACID) in the traditional relational
databases are not suitable to be a set of properties to describe
NoSQL databases

All of the above

1 points Save Answer

QUESTION 17

________ stores are used to store information about networks, such as
social connections.

Key-value
Wide-column
Document
Graph

1 points Save Answer

QUESTION 18

NoSQL databases are used MAINLY for handling large volumes of
______________ data.

Unstructured

Structured

Semi-structured

All of the above

1 points Save Answer

QUESTION 19

Which of the following is FALSE about Hadoop MapReduce?

It is a distributed framework

The main algorithm used in it is MapReduce

It runs with commodity hardware

All are true

1 points Save Answer

QUESTION 20

Which of the following is FALSE about load balancing?

Load balancing improves the distribution of workloads across
multiple computing resources.

Load balancing aims to optimize resource use, maximize
throughput, minimize response time, and avoid overload of any
single resource.

Using multiple components with load balancing instead of a
single component may increase reliability and availability through
redundancy.

All are true.

1 points Save Answer

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QUESTION 21

What are the characteristics of cloud computing? (3 marks)

P 0 WORDS POWERED BY TINY

3 points Save Answer

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QUESTION 22

What are the four deployment models in cloud computing? (4 marks)

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4 points Save Answer

Paragraph Arial

10pt

Paragraph Arial

10pt

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QUESTION 23

What are Docker Image, Docker Container, and Docker Registries? Please give brief
descriptions of these concepts. (4 marks)

P 0 WORDS POWERED BY TINY

4 points Save Answer

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QUESTION 24

Please brie�y describe how Spark works? (4 marks)

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4 points Save Answer

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QUESTION 25

Please brie�y compare the di�erences betwen RDD and DataFrame? (4 marks)

P 0 WORDS POWERED BY TINY

4 points Save Answer

Paragraph Arial

10pt

Paragraph Arial

10pt

Paragraph Arial

10pt

https://www.tiny.cloud/?utm_campaign=editor_referral&utm_medium=poweredby&utm_source=tinymce&utm_content=v5
https://www.tiny.cloud/?utm_campaign=editor_referral&utm_medium=poweredby&utm_source=tinymce&utm_content=v5
https://www.tiny.cloud/?utm_campaign=editor_referral&utm_medium=poweredby&utm_source=tinymce&utm_content=v5

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QUESTION 26

What are the di�erences between SQL and NoSQL? (3 marks)?

P 0 WORDS POWERED BY TINY

3 points Save Answer

QUESTION 27

Please use Scala to fill in the appropriate RDD transformation
operations in the steps a, b, and c. (3 marks)

3 points Save Answer

Paragraph Arial

10pt

https://www.tiny.cloud/?utm_campaign=editor_referral&utm_medium=poweredby&utm_source=tinymce&utm_content=v5

QUESTION 28

Given the following text input, please use the below Map-Reduce framework to perform word count
(case insensitive). Note that a combiner should be in use if necessary. Please write down the
answers according to the box numbers below.

Text Input:
Saturn is a planet.
Planet Earth is a planet.
Pluto is not a planet anymore.

Answer sample:
1: (Input).
Saturn is a planet
Planet earth is a planet
Pluto is not a planet anymore
Please write the answers in the below blanks:

Split Mapping

2: 5:

3: 6:

4: 7:

Shuffling Reduce

8: 16:

9: 17:

10: 18:

11: 19:

12: 20:

13: 21:

14: 22:

15: 23:

5 points Save Answer

Output

24:

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QUESTION 29

Please use this space to specify any assumptions you have made in
completing the exam and which questions those assumptions relate
to. You may also include queries you may have made with respect to a
particular question, should you have been able to ‘raise your hand’ in
an examination room.

0 points Save Answer

Paragraph Arial

10pt

https://www.tiny.cloud/?utm_campaign=editor_referral&utm_medium=poweredby&utm_source=tinymce&utm_content=v5

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