Test
PLS Lecture
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Preguntas del test (183)
1A dynamic IP address...
- ACan only be used by laptops
- BChanges over time to protect information
- CIs untraceable
- DIs only stable when using a CAT 5 Ethernet Cable
2Message authentication is a service beyond
- AMessage Confidentiality
- BMessage Integrity
- CMessage Splashing
- DMessage Sending
3Which of the following answers is NOT a right way to minimize the risk of threat?
- AUse a firewall
- BOnly visit trusted sites
- CUse an antivirus software
- DSet your browser to remember your passwords
4Which kind of threat is self-replicating?
- ATrojian
- BRootkit
- CWorms
- DPhishing
5The following are safe antivirus systems EXCEPT:
- ANorton Antivirus
- BMacaffe
- CRootkit
- DSymmantec
6What is true about computer viruses?
- AUser notices symptoms immediately
- BIt is always attached into some other non-malware software
- CGenerally no damage occurs
- DNot modeled after biological viruses
7The following are types of threats to computer and network security?
- AWorm
- BSpider
- CMalware
- DVirus
8What US Government agency is dedicated to cyber security?
- AHomeland Security
- BUnited States Department of Energy
- CUnited States Department of Education
- DUS Dept of Defense
9What is a worm?
- ASelf replicating, have to attach to another program, can transmit across files and destroy files
- BMalicious software, consists of programming that is designed to disrupt or deny operation and gather info for lost privacy of exploitation
- Cappear to do something desirable, but actually do harm
- Dsomething you get if you are the early bird
10Which is the following is NOT a computer threat?
- AMalware
- BVirus
- CBacteria
- DRootkit
11What are some symptoms of an infection?
- AYou see unexpected messages or images
- BYou get lots of system error messages
- CPrograms start unexpectedly
- DAll of the above
12What is malicious software?
- ADesigned to disrupt or deny operation
- BGather info that leads to loss of privacy or exploitation
- CGain unauthorized access to system resources
- DAll of the above
13What is the biggest threat faced by computers?
- AMalware
- BViruses
- CCrimeware
- DSpontaneous combustion
14Which of the following is NOT a risk resulting from the use of bluetooth in the context on security?
- ABluejacking
- BBluespamming
- CBluehacking
- DBluebugging
15How to minimize the risk of most threats?
- ADownload unknown content from trusted sources
- BUse a firewall
- CGive someone your password
- DOpen email attachments from untrusted sources
16What are the things you can do to secure your network?
- AHave a strong password
- BEncryption
- CTurn SSID off
- DAll of the above
17What consists of programming?
- Acodes
- Bscripts
- Cactive content
- Dall of the above
18Which bluetooth threat allows hackers to gain access to a mobile phone's contacts?
- ABlujacking
- BBluesnarfing
- CBluespamming
- DBluebugging
19Which is NOT an example of a security threat?
- AMalware
- BTrojan
- CDanger Warning
- DWorm
20Which threat may appear to perform a desirable function but actually performs undisclosed malicious functions?
- AMalware
- BComputer virus
- CTrojan
- DSpyware
21Which statement about malware is correct?
- Amalicious software
- Bconsists of programming
- Cdesigned to disrupt or deny operation
- Dall of the above
22Which is not a computer threat?
- AComputer virus
- BMalware
- CComputer crash
- DTrojan
23It refers to the act of attempting to acquire sensitive info
- APhishing
- BThreat
- CWorm
- DNone of the above
24If you think your computer has been infected, what are the recommended after action steps?
- ADisconnect from the internet both LAN and WAN
- BUpdate your antivirus and check your antivirus software manufacturer's website for specific procedures and software for particular viruses
- CClose current web browser and open a new one
- DBoth A and B
25Which of the following is true regarding worms?
- AThey are self-replicating
- BDoesn't need to attach itself to another program
- CHarm can come like viruses in files
- DAll of the above
26Which of the following is NOT an example of a threat to computer security?
- ATrojan
- BSpartan
- CMalware
- DSpyware
27Malware consists of what type of programming?
- Acodes
- Bscripts
- Cactive content
- Dall of the above
28How to secure your wireless network
- Aset up a unique password for your device
- BTurn SSID off
- CEnable encryption such as WPA
- Dall of the above
29Threats are a serious deal and compromise our safety. Which of the following are examples of threats?
- ATrojan
- BWorms
- CMalware
- DAll of the above
30What kinds of risks come with bluetooth-equipped devices?
- ABluejacking: anonymous text messages
- BBluespamming: a phone's contacts are secretly sent text messages
- CBluesnarfing: hackers gain access to a phone's contacts
- DAll of the above
31Which of the following is NOT true of programming languages?
- AMachine language consists of 1's and 0's
- BProgramming language consists of words
- CProgramming language is more tedious than machine language
- DSoftware can convert programming language to machine language
32Which programming language is most flexible?
- AC++
- BR
- CHTML
- DAssembly Language
33What is a well-defined, ordered set of steps for defining a problem?
- AProgram
- BAlgorithms
- COperators
- DSyntax
34Which is not a basic element of a computer program?
- AVariables and assignments
- BSyntax
- CLogic
- DLoops
35What is computer code?
- ACollection of computer instruction written in human-readable programming language (usually plain text)
- BA handbook on how to operate a computer
- CComputer instructions written in binary numbers
- DNone of the above
36What is syntax?
- AThat which provides everything needed to create, test, and debug software
- BThe correct use of key words, operators, and programmer-defined names
- CAn entire sequence of instructions
- DA volatile type of memory
37What is an algorithm?
- AWell-defined, ordered set of steps used to solve a problem
- BA special language computers speak
- CA type of programming language
- DObjects that have both data elements and can perform a function
38Which of these is NOT a major component of hardware?
- ACPU
- BPrograms
- CMain Memory
- DOutput devices
39What language allows us to use words instead of numbers?
- AProgramming Language
- BVirtual Language
- CMachine Language
- DWord Language
40Which one is not a common programming language?
- AVisual Basic
- BJava
- CC++
- DBoa
41Which of the following is a great example of Visual Basic control name?
- ALblEmployee
- BbTNClose
- Ctxthoursworked
- DtxtHoursWorked
42These are all programming languages except:
- APython
- BDutch
- CJava
- DC++
43What are the major types of physical components?
- ACPU
- BMain Memory
- CSecondary storage devices
- DAll of the above
44How do we program computers?
- AMachine Language > Complier > Programming Language
- BComplier > Programming Language > Machine Language
- CProgramming Language > Compiler > Machine Language
- DComplier > Machine Language > Programming Language
45Which one is not the common programming language?
- AJava
- BPython
- CEnglish
- DVisual Basic
46What is a computer code?
- ACollection of computer instructions written in a human-readable programming language, usually as plain text
- BCollection of symbols that are relevant to computer coding
- CLanguage that is used in computer programming
- DA special code that is unique to every computer
47What is the name for the physical components of a computer?
- AHardware
- Bsoftware
- Croughware
- Dtoughward
48All of the following are types of computer hardware, EXCEPT:
- ACPU
- Binput devices
- Coperating system
- Doutput devices
49What are the important aspects of an algorithm?
- Anon-ambiguity
- Bambiguity
- Cfinite
- DA and C
50Which programming language described in lecture offers the most flexibility, but the least ease of use?
- AHTML
- BPython
- CJava
- DAssembly
51The compiler is the
- AComputer
- BTranslator
- CProgrammer
- DEngineer
52A set of rules to be followed in performing some operation or task:
- AFinite
- BNon-ambiguity
- Can algorithms
- Da calculus
53Which of the following is a basic element of a computer program
- AVariables and assignments
- BArithmetic
- CLogic ("if" statement)
- DAll of the above
54What is the correct order of the programming work-flow?
- ACompile the code producing an executable file, write the code in an editor program, run the program/executable file
- BWrite the code in an editor program, compile the code producing an executable file, run the program/executable file
- CWrite the code in an editor program, run the program/executable file, compile the code producing an executable file
- DRun the program/executable file, write the code in an editor program, compile the code producing an executable file
55How to start a new file in Rstudio?
- Aopen a new script
- Bopen a new notebook
- Copen a new markdown
- Dopen r presentation
56Which of the following translates human-readable code into computer-readable instructions?
- ACode Executioner
- BCode Complier
- CCode Translator
- DCode Debunker
57Which of the following is one of the four basic programming concepts?
- ANumber
- BEquation
- CLoops
- DPrograms
58Database can be classified according to?
- Anumber of users
- Bdatabase location
- Cexcept of type and extent of use
- Dall of the above
59Which one is not the advantage of a DBMS?
- ABetter data integration
- Bimprove data access
- Cimprove decision making
- DMaximized data inconsistency
60What is the difference of the data and information?
- AData are raw facts
- Binformation is the result of processing raw data to reveal meaning
- Cinformation requires context to reveal meaning
- DAll of the above
61What is data?
- Araw facts
- Bdata is made up from information
- Csomething that doesn't need to be formatted for storage and processing
- Ddata is the same as information
62A relational database consists of a collection of...
- ATables
- BFields
- CRecords
- DKeys
63What is data?
- ARaw facts
- Bneeds context
- Cnot facts
- Dlimited context
64What is data?
- Araw facts
- Bneeds context
- Cnot facts
- Dlimited context
65What is the definition of End-user data?
- Adata about data
- Braw facts of interest to end user
- Cdata about computer programs
- Ddata about hard drives
66What is data?
- Araw facts such as telephone numbers, birthdays, and year-to-year
- Ba group of characters
- Cversions of the same data
- Dtransaction-oriented database systems
67What does XML stand for?
- Aextensible markup language
- Bxray markup language
- Cextra markup language
- Dexcess markup langage
68What is/are characteristic(s) of a spyware?
- ADoes not need to attach itself to another program
- Bdestroys file
- Ctrick the user into some action to activate the software on your computer
- Dwatches the actions of the user and passes it to a server
69Which one is not an advantage of a database management system (DBMS)?
- AMaximized data inconsistency
- BImproved data access
- CBetter data integration
- DIncreased end-user productivity
70Data is managed most efficiently when stored in a...
- ADatabase
- BComputer
- CRAM
- DDrawer
71Which of the following is not an example of an advantage of a DBMS?
- AImproved data sharing
- BImproved data access
- CImproved data security
- DImprove datum's appearance
72Which one does not belong to the 4 rules in access?
- AWe need to double check the color of the header
- BThe fields must have the same data type, but the field names can be different
- COne of the fields must be a primary key
- DTables must be closed
73Databases can be classified according to which of the following?
- ANumber of users
- BDatabase locations
- CExpected type and extent of use
- DAll of the above
74What is data?
- ASource of information
- BBuilding blocks of information
- CGeneric Info
- DPlain info
75Which of the following are NOT advantages of a DBMS?
- AImproved data sharing and secutiry
- Bbetter data integration
- CMinimized data inconsistency
- DIncreased money in our lawmakers pockets
76Which is an advantage and role of a Database Management System?
- ADBMS is the intermediary between user and database
- BDBMS enables data to be shared
- CDBMS integrates many users' view of the data
- Dall of the above
77Which of the following is not a required software in the database system environment?
- AOperating system software
- BDBMS software
- CHardware
- DApplication programs and utility software
78What are some reasons for studying file systems?
- AComplexity of database design is easier to understand
- BUnderstanding file system problems helps to avoid problems with DBMS systems
- Cknowledge of file system is useful for converting file system to database system
- DAll of the above
79What is data?
- Ainformation
- Bsomething that requires context to reveal meaning
- Craw facts
- Dthe result of processing raw data to reveal meaning
80Data must be processed in order to produce information
- ATrue
- BFalse
- CIs this a trick question? Data and information are the same
- DSometimes A, sometimes B
81All of the following describe the advantages of Database Management Systems except:
- Aimproved data security
- Bimproved data sharing
- Cbetter data integration
- Ddecrease in productivity
82What are the 5 major parts of a database system?
- ASoftware, Procedures, Places, Data, Hardware
- BHardware, Software, People, Procedures, Data
- CData, Software, Procedures, Hardware, Planets
- DProtocol, Hardware, Software, Data, People
83What is metadata?
- AMetabolism data
- BRaw data
- CData about data
- DMetamorphic data
84What are the building blocks of information?
- AData
- Binformation
- Catoms
- Dnone of the above
85Which of these modern settings involve data management?
- ABusiness
- BResearch
- CAdministration
- Dall of the above
86What are databases classified by?
- ANumber of users
- BDatabase locations
- Cexpected type and extent of use
- Dall of the above
87Which is NOT a limitation of file system data management?
- ASystem administration is complex and difficult
- BRequires extensive programming
- Csecurity features are likely inadequate
- Danalysts must review and update file systems frequently
88What is a disadvantage of managing a database system?
- AManagement complexity
- BIncreased costs
- CMaintaining currency
- Dall of the above
89Which of the following is NOT an advantage of DBMS?
- Aimproved data sharing
- Bimproved data access
- Cbetter data integration
- Ddata redundancy
90What does DBMS stand for?
- ADatabase managerial system
- Bdatabase management system
- Cdatabase multiple system
- Ddatabase multicycle short
91What is the role and advantage of DBMS?
- Ait is the intermediary between the user and the database
- Bit enables data to be shared
- Cit integrates many users' views of the data
- Dall of the above
92What is not an advantage of database management systems?
- Aimproved data sharing
- Bimproved data security
- Cimproved data access
- Dquicker data filtering
93Data management is understood to focus on the proper generation, storage, and retrieval of data; therefore, all of the following are significant in this process EXCEPT:
- AGood decision making is imperative for proper organization
- BAccurate info contributes to proper management
- CInformation serves to reveal meaningful and proper data
- DInformation and data have no role in data management
94What is a database?
- AShared, integrated computer structure that stores a collection of end-user data and metadata
- Braw facts of interest to end user
- Cprovides description of data characteristics and relationships in data
- Dmanages structure and controls access to data
95Data management focuses on?
- AProper generation of data
- Bproper storage of data
- Cproper retrieval of data
- Dall are correct
96What is end-user data?
- Araw facts of interest to end user
- Bdata about data
- Cboth A and B
- Dnone of the above
97Which is not a limitation of file system data management?
- Arequires extensive programming
- Bcan perform ad hoc queries
- Csecurity features aren't adequate
- Ddifficult to make changes to existing structures
98What is needed to make a good decision?
- Agood information
- Befficient database
- Cunderstand file systems
- Dnone of the above
99A collection of data related to a specific topic:
- Atable
- Bform
- Cquery
- Dbigdata
100What is one advantage of DBMS?
- AImprove data sharing
- Bimprove organzation
- Cincrease more customers
101Which of the following is not a setting databases are used?
- Abusiness
- Bresearch
- Cadministration
- Dfor facebook use
102Which of the following is considered hardware?
- Aexcel
- Bwindows7
- Cscreen
- Dmicrosoft word
103Which of the following are problems with non-ERP systems?
- Along-term maintenance costs are high
- Blimits ability to engage in process reengineering
- Cstrategic decision making not supported
- Dall of the above
104What are some risks associated with ERP implementation?
- Achoosing the wrong ERP
- Bchoosing the wrong consultant
- Chigh costs and cost overruns
- Dall of the above
105What are some ERP products?
- AOracle
- BPeoplesoft
- CBaan
- Dall of the above
106Which of the following is NOT the essential stage of data warehousing process?
- AModeling data for the data warehouse
- Bcleansing extracted data
- Ctransforming data out of the warehouse model
- Dloading the data into the date warehouse database
107What does the acronym ERP stand for?
- AEntrepreneurship Reasoning Plan
- BEnterprise Resource Planning
- CEntertainment Resource Planning
- DExcellent Ramen Place
108Where are some areas with high costs regarding Enterprise Resource Planning Systems?
- ATraining
- BTesting and integration
- CDatabase conversion
- Dall of the above
109Which of the following is not an essential stage of data warehousing process?
- AModeling data for the data warehouse
- Bcleansing extracted data
- Cloading the data into the data warehouse database
- Dput the data on an external hard drive
110What links vendors, carriers, third-party logistics companies, and information system providers?
- AIBM
- BRAM
- CSCM
- DROM
111What is CRM?
- AAn integrated approach to identifying, acquiring, and maintaining customers
- BThose activities supported by multi-module application software that help a company manage the important parts of its business in an integrated fashion
- Csupports management-critical tasks through analytical investigations of complex data associations captured in data warehouses
- DA database constructed for quick searching, retrieval, ad-hoc queries, and ease of use
112What is ERP?
- AEnterprise Resource Planning
- BEconomic Resource Planning
- CEnvironment Resources Planning
- DEducation Resource Planning
113What is CRM?
- AAn integrated approach to identifying, acquiring, and maintaining customers
- BAllows companies to coordinate their approach across channels, departments, and geographically
- Cboth answers
- Dnone of the above
114What to look for in CRM software
- ABe able to integrate smoothly and flawlessly
- Bmake sure the primary goal is standard in software
- Cmake sure the program doesn't offer more than you need
- Dall of the above
115Which of the following are the essential stages of the data warehousing process:
- Amodeling data for the data warehouses
- Bextracting data from operational databases
- Ccleansing extracted data
- Dall of the above
116Reasons ERP systems are powerful tools?
- Ais a logical solution to incompatible applications
- Baddresses global information sharing and reporting
- Cavoids the pain and expense of fixing legacy systems
- Dall of the above
117What does CRM stand for?
- AComputer Resource Management
- BCustomer Relationship Management
- CConsumer Relation Motives
- DConsumer Relationship Management
118Which tier if the application layer on?
- ATier 1
- BTier 2
- CTier 3
- DTier 4
119CRM leads to all of the following benefits except:
- AHelps make call centers more effcient
- BHelps sales staff close deals faster
- CIncreases employees salaries
- Dsimplifies marketing and sales processes
120Which one is not the essential stages of the data warehousing process?
- AModeling data for the data warehouse
- Bextracting data from operational databases
- Ccleaning extracted data
- Ddeleting the data you have
121What is one of the ERP applications?
- ACore applications
- BExamine applications
- CRandom Applications
- DPlug applications
122What is CRM?
- AA technology that allows companies to track consumer demands
- BA process that companies use to assess customer relations
- CA mindset of providing high-quality customer experiences
- DA way of attracting customers to your product
123Which is TRUE about a data warehouse?
- AAn ERP system could exist without having a data warehouse
- BA database constructed for quick searching, retrieval, ad-hoc queries, and ease of use
- CA relational or multi-dimensional database that may consume hundreds of gigabytes or even terabytes of disk storage
- Dall of the above
124Which one is the full name of IT?
- AInformal technology
- Binteresting technology
- Cinformation technology
- DIndividual technology
125What is the benefit of CRM?
- AResearch has shown that companies that create satisfied, loyal customers have more repeat business, lower customer-acquisition costs and stronger brand value
- BWhich equals better financial performance
- Call of the above
- Dnone of the above
126Which of the following is NOT a desirable attribute of a good presentation slide?
- Along and wordy body
- Bshort and concise body
- Caligned text
- Dmaking the slide as simple as possible
127What is the short-key for "Save"?
- ACtrl+A
- BCtrl+Z
- CCtrl+S
- Dnone of the above
128What three keys do you need to press to apply an Array Formula?
- AAlt+Shift+Enter
- BControl(Command)+Shift+Enter
- CControl(Command)+Shift+Delete
- DControl(Command)+Shift+Tab
129Which of the following is best suited for PowerPoint presentations?
- AGIF art
- BAnimations
- CNormal pictures
- DClip art
130Which short key is for re-do?
- ACtrl+Y
- BCtrl+A
- CCtrl+D
- DCtrl+R
131Which of the following is not included in the "content" of the slide?
- ASimplicity
- BScope
- CSchedule
- DStructure
132What background color is best for most presentations?
- ABlack
- BAny solid color
- CWhite
- DGreen
133Can you use internet pictures for professional powerpoint?
- AYes
- BNo
- CYes, but only if you cite it
- DIt's up to the person who is presenting
134Which of the following is not one of the 6S PowerPoint summary?
- ASimplicity -- simplify everything
- BStructure -- one slide, one idea
- CStory -- make your own scenario
- DSpecific -- make your audience understand you
135Which of the following statements is true about animations in PowerPoint?
- Aproblems with mouse during presentation
- Bit takes a lot of time unless good powerpoint skills
- Cthe PC and mouse is far from you during presentation
- Dall of the above
136Which of the following is not one of the 6S of PowerPoint?
- ASpeed
- BScope
- CSport
- DStory
137Which of the following is not apart of the 6S of Powerpoint?
- AStructure
- BSchedule
- CStory
- DStrength
138Which of the following is NOT a risk associated with bluetooth?
- Abluejacking
- Bbluespamming
- Cbluebugging
- Dbluephishing
139What are the mandatory elements on all slides?
- Aslide number
- Bpicture
- Ctitle
- Dtext
140Which type of text may be formatted to print at the top of every page?
- AHeader
- Bfooter
- Chandouts
- Dnotes pages
141Which step is not true when resizing a shape?
- Aselect shape
- Bresize shape with "yellow diamond"
- Cfind "right shape"
- Dresize shape with "red diamond"
142Which one of the following should we avoid to use if possible when making PowerPoint?
- ATables
- BAnimations
- CWhite bullets
- Dall of the above
143Try not to use...
- AStandard table option
- BHeroin
- CPowerpoint
- DComplex Table
144Which one of the following does NOT belong to the 6S's?
- ASpeed
- BScope
- CStory
- DSoccer
145What fonts should you use in typical powerpoint?
- AGeorgia
- BHelvetica
- CVeranda
- DAll of the above
146What is data?
- ACollection of data
- Bbuilding blocks of information
- Cstorage of information
- Dall the information
147For an hour long presentation, the presenter should have prepared a powerpoint with...
- Aless than 25 slides
- Bless than 20 slides
- Cless than 15 slides
- Dno slides
148Which of the following is one of the six keys to getting the most out of your connectivity?
- Acustomer support
- Bmanagement systems
- Ctraining
- Dall of the above
149Which one is not a customer support?
- AHelp desk
- Bsupport tickets
- Cforums
- Dmoney
150Which one of these is not an example of new photography?
- ADSLR
- BSD card
- CPhotoshop
- DSLR
151Metcalfe's Law: A growth from 3 to 6 users would show a _____ fold increase
- A1
- B2
- C3
- D4
152What is Metcalfe's Law?
- AThe value of the network grows roughly in line with the square of the number of its users
- BThe value of the network grows roughly in line with the cube of the number of its users
- CThe value of the network grows roughly in line with the half of the number of its users
- Dnone of the above
153Which of the following is NOT an impact of IT on organizations?
- AIT can be a wealth of support, a powerful resource for information, and a critical asset towards the fulfillment of the organization's mission
- BIT can be the bane of our existence
- CIT is a critical resource, but it is rarely a money generating group
- DIT can be the solution to anything
154Which does NOT fit into the category of "types of businesses and IT presence"?
- AEbay store
- BWeb presence
- CSatellite TV
- DElectronic Commerce
155What company was unable to adapt to changing technology?
- ADell
- BKodak
- CApple
- DMicrosoft
156The internet is designed to aid with the following:
- AMoney
- BMoney, boredom
- Cdiscovery, communication, collaboration
- Dhelp with homework
157What are basic threat securities?
- ADownload known content from trusted sites
- BOnly open email attachments from trusted sources
- CSet your browser to discard passwords immediately
- Dall of the above
158Which of the following is a way in which vectors are created in R?
- ASequence
- BConcatenation function
- CScan function
- DAll of the above
159Which statement is correct?
- AArrays are numeric objects with dimension abilites
- BArray can be only two dimensional
- CMatrix can be multi-dimensional
- DAll of them are incorrect
160Which is NOT one of the three ways to create vectors in R?
- ASequence
- BPrint function
- CConcatenation function
- DScan function
161R can be best compared to what type of day-to-day tool?
- AA compass
- BAn X-ray
- Ca calculator
- Demail messaging
162R is object based. Which one is not a type of object?
- AScalar
- BVector
- CGraph
- DMatrices
163In R, what does the symbol %% do?
- AAddition
- BMultiplication
- CModulo (estimates remainder in a division)
- DSubtraction
164Where to install R on your MAC or PC?
- Ahttp://www.r-project.org/.
- Bhttp://www.google.com
- Chttp://www.yahoo.com
- DNone of the above
165What is a matrices?
- AA matrix is three dimensional array
- BA matrix is a two dimensional array
- CA matrix is a four dimensional array
166What is not a way to create a vector in R?
- ASequence
- Bscan function
- Cformula
- Dconcatenation function
167What is the first stage of the data warehouse process?
- Amodeling data for data warehouse
- Bextracting data from operational databases
- Ccleansing extracted data
- Dtransforming data into the warehouse model
168Which answer best describes the built in functions of R?
- AR has many built in functions that compute different statistical procedures
- BFunctions in R are followed by ().
- CInside the parenthesis we write the object (vector, matrix, array, dataframe) to which we want to apply the function
- DAll of the above
169What's INCORRECT about objects in R?
- AObjects in R obtain values by assignment
- Bobjects can be of different kinds
- CThis is achieved by the gets arrow, <-, and not the equal sign, =
- DObjects must be the same kind
170What does "?" mean in R?
- ASubtract command
- BAdd command
- CVariable Assignment
- Dhelp command
171How do you load data with r commander?
- AData>Load Data
- BEdit>Data>Load Data
- CData>New Data Set>Load Data
- DNone of the above
172What is matrices?
- AOperating system
- Bhardware
- Csoftware
- Dtwo dimensional array
173What is the difference between "=" and "==" in R?
- AThey are the same
- B"=" sets the variable
- C"==" signifies that something is equal to another value
- DB and C
174What's R we talked about in this class?
- Aa letter in the alphabet
- Ban open-source programming language
- Can application suite
- Da statistic function in excel
175What are the operations of R?
- Aaddition
- Bsubtraction
- Cmultiplication
- Dall of the above
176Which of the following is not a way to create vectors in R?
- ASequence
- Badd function
- CConcatenation function
- Dscan function
177What is the proper way to notate string variables in R?
- Aa' 'b' 'c'
- B"a" "b" "c"
- Ca; b; c
- Da:b:c
178What type of data can be used in R?
- ABuilt in dataframes that are found in R
- BR cannot process any form of dataframes
- Cexternal files like excel
- Dmore than one answer above is correct
179What does a byte with the value 00000010 equal?
- A0
- B1
- C2
- D10
180Once one gives a variable a value, that value cannot be changed again.
- AVerdadero
- BFalso
181Which of the following are types of objects?
- AScalar
- BVector
- CMatrices
- DAll of the above
182What keys should you hit when attempting to compile variables?
- Aenter
- Bcommand + enter
- Cshift + command +enter
- Dshift + enter
183Which of the following is NOT one of the three ways to create vectors in R?
- ASequence
- BScan function
- CScale equation
- DConcatenation function
Información
- Descripción
- Test sobre PLS Lecture, creado por Hailey Gleason el 23/05/2018.
- Autor
- Hailey Gleason
- Idioma
- English
- Visitas
- 11
- Valoración
- Aún sin valoraciones Valora este test