CS代考 Preview Test: INFS3208 Semester Two Final Examination 2020 – cscodehelp代写

Preview Test: INFS3208 Semester Two Final Examination 2020
Test Information
Description Undertaking this online examination deems your commitment to UQ¡¯s academic integrity pledge as summarised in the following declaration:
“I certify that I have completed this examination in an honest, fair and trustworthy manner, that my submitted answers are entirely my own work, and that I have neither given nor received any unauthorised assistance on this examination”.
Instructions You need to answer all of the questions in the Blackboard Test.
Timed Test
Multiple Attempts
Force Completion
This test has a time limit of 2 hours and 30 minutes.This test will save and be submitted automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. [The timer does not appear when previewing this test]
Not allowed. This test can only be taken once.
This test can be saved and resumed at any point until the time has expired. The timer willcontinuetorunifyouleavethetest.
Your answers are saved automatically.
1 points
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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
QUESTION 2
Which pre-existing technology is NOT considered to be one of the primary inuences on cloud computing?
Clustering technology Encryption technology
Grid Computing technology Virtualisation technology
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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
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
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
QUESTION 6
Which of the following tools can help you manage multiple containers on one single machine?
Dockerle
Docker-compose
Docker machine Docker-swarm and Kubernetes
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QUESTION 7
Deploying MySQL, Redis, Nginx, and PHP services into ONE container makes it easier to scale horizontally and reuse container.
True False
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
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
QUESTION 10
Apache Spark has language API’s in _________
Python
All of the above
QUESTION 11
Which Cluster Manager does Spark support? Standalone Cluster Manager
MESOS
YARN
All of the above
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QUESTION 12
Which of the following operations is NOT a transformation? atmap
lter
reduce reduceByKey
QUESTION 13
Which of the following is true for QL?
It is the kernel of 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
QUESTION 14
Which of the following is true for RDD?
We can operate DDs 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
QUESTION 15
Which of the following is NOT a NoSQL database? MySQL
Redis MongoDB Cassandra
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QUESTION 16
Which of the following statements is WRONG?
NoSQL databases require that schemas be dened before you can add data
NoSQL databases are built to allow the insertion of data without a predened 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
QUESTION 17
________ stores are used to store information about networks, such as social connections.
Key-value Wide-column Document Graph
QUESTION 18
NoSQL databases are used MAINLY for handling large volumes of ______________ data.
Unstructured Structured Semi-structured All of the above
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
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All are true
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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.
QUESTION 21
What are the characteristics of cloud computing? (3 marks) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
3 points
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4 points
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QUESTION 22
What are the four deployment models in cloud computing? (4 marks) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
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QUESTION 23
What are Docker Image, Docker Container, and Docker Registries? Please give brief descriptions of these concepts. (4 marks)
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
4 points
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QUESTION 24
Please briey describe how Spark works? (4 marks)
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
4 points
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QUESTION 25
Please briey compare the dierences betwen RDD and DataFrame? (4 marks) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
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3 points
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QUESTION 26
What are the dierences between SQL and NoSQL? (3 marks)? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
3 points
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QUESTION 27
Please use Scala to fill in the appropriate RDD transformation operations in the steps a, b, and c. (3 marks)
a:
b: c:
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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:
2:
3:
4:
8:
9: 10: 11: 12: 13: 14: 15:
Split
Shuffling
Mapping
Reduce
5:
6:
7:
16:
17:
18:
19:
20:
21:
22:
23:

24:
Output
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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.
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
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