Advance PHP

Chapter 1 : Introduction to Object oriented Programming in PHP

1. Which notation is used to access variables of an object?

A) ::

B) =

C) ->

D) .

Answer: C) ->

2. Which notation should be used to refer to a method in the context of a class rather than an object you use?

A) ->

B) _

C) $

D) ::

Answer: D) ::

3. Which one of the following property scope is not supported by PHP?

A) _collect()

B) _garbage()

C) _destruct()

D) _destructor()

Answer: C) _destruct()

4. Which of the following property scopes is not supported by PHP?

A) friendly()

B) final

C) public

D) static

Answer: A) friendly()

Networking

Networking MCQ form Nirali Prakashan Book

Chapter 1 : Introduction to Computer Network

1. Which topology requires a central controller or hub?

A) Star

B) Mesh

C) Bus

D) Ring

Answer: A) Star

2. Which topology requires a multipoint connection?

A) Mesh

B) Star

C) Ring

D) Bus

Answer: C) Ring

3. Which of the following is Not a Key element of a protocol?

A) Semantics

B) Signal

C) Syntax

D) Timing

Answer: B) Signal

4. In a network with 25 computers, which topology would require the most extensive cabling?

A) Star

B) Mesh

C) Bus

D) Ring

Answer: B) Mesh

Object Oriented Concepts Through CPP   

Object Oriented Concepts Through CPP  MCQ form Nirali Prakashan Book

Chapter 1 : Introduction to C++

1. The Word “Oriented” means showing________

A) Ambiguity

B) Functionality

C) Methodology

D) None

Answer: B) Functionality

2. OOP decompose the problem into smaller unit known as ______

A) Object

B) Class

C) Function

D) None

Answer: A) Object

3. Object-Oriented Programming Language gives emphasis on_______

A) Flowchart

B) Algorithm

C) Data

D) None

Answer: C) Data

4. Object-Oriented Programming Language follows the _____ approach.

A) top-down

B) bottom-up

C) top-bottom

D) none

Answer: B) bottom-up

Operating System MCQ form Nirali Prakashan Book

Chapter 1 : Introduction to Operating system

1. Which of the following is not an operating system?

A) Windows

B) Linux

C) DB2

D) MAC

Answer: C) DB2

2. What is meant by Boot?

A)I a software

B) Restarting computer

C) Scanning Program

D) Turn Off Computer

Answer: B) restarting computer

3. Which is the Linux operating system?

A) Private operating system

B) Windows operating system

C)  Open-source operating system

D)  None of these

Answer: C)  Open-source operating system

4. Which is single user single tasking operating system?

A) Windows

B) Linux

C) Dos

D)  Mac OS

Answer: C) Dos

Introduction to  Operating System MCQ

Introduction to OS

What is operating system?

a) collection of programs that manages hardware resources

b) system service provider to the application programs

c) link to interface the hardware and application programs

d) all of the mentioned

Answer : d) all of the mentioned

To access the services of operating system, the interface is provided by the ___________

 a) System calls

b) API

c) Library

d) Assembly instructions

Answer : a) System calls

Which one of the following is not true?

a) kernel is the program that constitutes the central core of the operating system

b) kernel is the first part of operating system to load into memory during booting

c) kernel is made of various modules which can not be loaded in running operating system

d) kernel remains in the memory during the entire computer session

Answer : c) kernel is made of various modules which can not be loaded in running operating system

Which one of the following error will be handle by the operating system?

a) power failure

b) lack of paper in printer

c) connection failure in the network

d) all of the mentioned

Answer : d) all of the mentioned

What is the main function of the command interpreter?

a) to get and execute the next user-specified command

b) to provide the interface between the API and application program

c) to handle the files in operating system

d) none of the mentioned

Answer : a) to get and execute the next user-specified command

By operating system, the resource management can be done via __________

a) time division multiplexing

b) space division multiplexing

c) time and space division multiplexing

d) none of the mentioned

Answer : c) time and space division multiplexing

If a process fails, most operating system write the error information to a ______

a) log file

b) another running process

c) new file

d) none of the mentioned

Answer : a) log file

 Operating System

PHP PROGRAMMING MCQ QUESTIONS AND ANSWERS

1. PHP stands for_________

A.  htpertext processor

B.  pretext hyper processor

C.  preprocessor home page

D.  none of above

Answer : A.  htpertext processor

DATA STRUCTURE USING C

1.When an algorithm is written in the form of a programming language, it becomes a _________ 

Answer : Program

Basic Concept and Introduction to Data structure

1. The word ____________comes from the name of a Persian mathematician Abu Ja’far Mohammed ibn-i Musa al Khowarizmi.

a) Flowchart                       b) Flow

c) Algorithm                       d) Syntax

 Answer: c) Algorithm

Data Structure

 Big Data 

1. Who popularized Big Data term?

                a) John Deere                    b) John Mashed

                C) Johnny Masha              d) John Mash

Answer: b) John Mashed

2. Numbers, text, image, audio, and video data is

                a) Volume           b) value

                c) Verity               d) Variety

Answer : d) Variety

3. Real time data is

                a) fields                b) primary key

                c) unique             d) record

Answer : c) unique

4. ……….. is a term that is used to describe data that is high volume, high velocity, and/ or high variety.

                a) Analytics                      b) Big Data

                c) Hadoop data                 d) Big data analytics

Answer : b) Big Data

5. ………. Digital data is based on Relational database table.

                a) Structured                   b) Unstructured

                c) Semi-structured          d) Semi- Unstructured

Answer : a) Structured

6. …….. digital data is based on XML/RDF.

                a) Structured                     b) Unstructured

                c) Semi-structured           d) Semi- Unstructured

Answer : b) Unstructured

7. ……. Digital data is based on character and binary data.

                a) Structured                   b) Unstructured

                c) Semi-structured          d) Semi- Unstructured

Answer : c) Semi-structured

8. …….. is not processing source of Big Data.

                a) R                                  b) Yahoo! Pipes,

                c) Mechanical Turk          d) Data meter

Answer: d) Data meter

9. ……. Is concerned with extraction of actionable knowledge and insights from big data.

                a) Data analytics               b) Big Data

                c) Digital data                   d) Descriptive Analytics

Answer : a) data analytics

10. ……. Essentially tells what happened in the past and presents it in an easily understandable form.

                a) Data analytics               b) Big Data

                c) Digital data                   d) Descriptive Analytics

Answer : d) Descriptive Analytics

11. ……….. extrapolates from available data and tells what is expected to happen in the near future.

                a) Predictive Analytics    b) Big data

                c) Digital data                  d) Descriptive Analytics

Answer : a) Predictive Analytics

12. ………. Finds unexpected relationships among parameters is collections of big data.

                a) exploratory or discovery Analytics       b) Predictive Analytics

                c) Digital data                                           d) Descriptive Analytics

Answer :  a) exploratory or discovery Analytics

13. ……….. useful knowledge from data to solve business problems can be treated systematically by following a process with reasonably well-defined stages.

a) Extracting       b) Preparing

c) Prescribing     d) None

Answer : a) Extracting

14. ………. Answers the question “What has happed?”

                a) Descriptive analytics                  b) predictive analytics

                c) Prescriptive analytics                 d) None

Answer : a) Descriptive analytics.

15. ………….. answer the question “What will happen?”

                a) Descriptive analytics                  b) predictive analytics

                c) Prescriptive analytics                 d) None

Answer : b) predictive analytics

16. ………….. answer the question “How can we make it happen?”

                a) Descriptive analytics                  b) predictive analytics

                c) Prescriptive analytics                 d) None

Answer : c) Prescriptive analytics

17. ……  is most important language for Data Science.

                a) Java                  b) Ruby

                c) R                       d) None of the mentioned.

Answer : c) R

18. ……… phase of the data analytics lifecycle usually takes  the longest time.

                a) Phase 2 : Data preparation      b) Phase 3 : Model Planning

                c) Phase 4 : Model Building       d) Phase 5 : communicate Results

Answer : a) Phase 2 : Data preparation

19. When data are collected in a statistical study for only a portion or subset of all elements of interest we are using.

                a) Sample            b) Parameter

                c) Population      d) None

Answer : a) Sample

20. In Statistics, a population consists of

                a) All People living in a country.

                b) All people living in the city are under study.

                c) All subjects or objects whose characteristics are being studied.

                d) None of the above

Answer : c) All subjects or objects whose characteristics are being studied.

21. The strength (degree) of the correlation between a set of independent variables X and a dependent variable Y is measure by

                a) Coefficient of Correlation        b) Coefficient of Determination

                c) Standard error of estimate        d) All of the above.

Answer : a) Coefficient of Correlation

22. Correlation coefficient values lies between

                a) -1 and +1        b) 0 and 1

                c) -1 and 0           d) None of these

Answer : a) -1 and +1

23. In correlation, both variables are always

                a) Random          b) Non Random

                c) Same               d) None

Answer : a) Random

24. If two variables oppose each other then the correlation will be

                a) Positive Correlation   b) Zero Correlation

                c) Perfect Correlation     d) Negative Correlation

Answer : d) Negative Correlation.

25. A perfect negative correlation is signified by

                a) 0         b) 1

                c) 0.5     d) -1

Answer: d) -1

26. If X and Y are independent to each other, the coefficient of correlation

                a) -1       b) 0

                c) +1      d) None

Answer : a) -1

27. If the scatter diagram is drawn the scatter pints lie on a straight line then it indicate

                a) Regression                     b) Skewness

                c) No correlation              d) Perfect correction

Answer : c) No correlation

28. …………. Is the major assumption in a linear regression model.

                a) The independent variables are numeric variables.

                b) There is only one dependent variable.

                c) The relationship between the independent and dependent variables is linear.

                d) The error term is a normally distributed random variable with mean zero and constant variance.

Answer : c) The relationship between the independent and dependent variables is linear.

29. ……… input (independent) variables are in used a simple linear regression model.

                a) 1         b) 2

                c) 3         d) depends on the number of features/attributes involved Bottom of Form.

Answer: a) 1

30. …….. of the following is not a step in data analysis.

a) Obtain the data           b) Clean the data

c) EDA                            d) None of the mentioned

Answer : d) None of the mentioned

31. Regression analysis ………

                a) Establishes a relationship between two variables.       B) Establishes cause and effect.

                c) Measures growth.                                                         D) Measures the demand for a good.

Answer: a) Establishes a relationship between two variables.

32. The dependent variable is also called…..

                a) Regression                  b) Regress and

                c) Continuous variable   d) Independent

Answer: b) Regress and

33. The independent variable is also called…………

a) Regressor                     b) Predict and variable

c) Explained Variable      d) All of these

Answer : a) Regressor

34.  ………… is about developing code to enable the machine to learn to perform tasks and its basic principle is the automatic modeling of underlying processes that have generated the collected data.
                a) Data Science                  b) Machine learning (ML)

                c) Data analytics                d) All of the Mentioned

Answer : b) Machine learning (ML)

35. Groups of related observations are called …………….. and the procedure to organize items of a given collection into groups base on some similar features called as………………

                a) clusters, analysis                         b) regression, clustering

                c) cluster, clustering                        d) None of the Mentioned

Answer : c) cluster, clustering

36. ……… rule mining is a technique to identify underlying relations between different items.

                a) Association     b) analytics

                c) Learning          d) All of the Mentioned.

Answer : a) Association

37. ………… is a form of supervised learning. Mail service provider like Gmail, Yahoo and other use this technique to classify a new mail as spam or not spam.

                a) Machine Learning       b) Classification

                c) Regression                     d) All of the mentioned

Answer : b) Classification

38. Examples of supervised learning includes………….

                a) Regression                     b) Decision Tree

                c) KNN                              d) All of the Mentioned

Answer: d) All of the Mentioned

39. A Naive Bayes Classifier is a  ……….. machine learning algorithm which relies on the assumption of feature independent to classify input data.

a) supervised                     b) Unsupervised

c) semi-supervised            d) All of the Mentioned

Answer : a) supervised

40.  …………….. analysis has become one of the most widely used statistical tools for analyzing multifactor data and it is appealing because it provides a conceptually simple method for investigating functional relationships among variables.

                a) Clustering                       b) Regression

                c) Data                                d) All of the Mentioned

Answer : b) Regression

Software Engineering  MCQ