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General Meteor - JavaScript Web Framework MCQs

1.

Tracker.Computation Object has the property named?
 

 

2.

Getting a Meteor method to return a function?
 

 

3.

To get a current logged in user ID?
 

 

4.

How to get this.userId in function inside Meteor method?
 

 

5.

How can a Meteor method be invoked?
 

 

6.

Which of the following methods using to setup access in Collections?
 

 

7.

A method is simply a remote function - a function that is run on the server. The benefits are that you know it's more secure and reliable, as the user can't mess with it. We've already been using methods unknowingly are methods?

 

8.

Which of the following is a correct way of using method?
 

 

9.

Your HTML has following: {{myHelper "Hello"}} What one of the following will set output to "Hello"?

 

10.

How to use Meteor methods inside of a template helper?
 

 

11.

How many arguments supports Meteor methods?
 

 

12.

Why do you think the client couldn't render the author name? Meteor.publish("getComments", function(){ var comments = Comments.find(); var userIds = comments.map(function(comment){ return comment.author; }); return [ comments, Users.find({_id: {$in: userIds}}) ]; })

 

13.

Which one is used to search data in the collection MyCollection?
 

 

14.

Add a rule that matches against a stream of events describing method or subscription attempts. Each event is an object with the following properties?

 

15.

Which of the following is correct syntax to provide target (server) environment for route (iron router)?

 

16.

Which of the following statement True, Using Reactive MySQL Databases in Meteor?
 

 

17.

Which oe of the following is correct way to insert a template named "layout" in HTML file?
 

 

18.

Provided that markdown package is already added to your app, which one of the following is correct way to use it in template?

 

19.

Which of the following command created a meteor app named myApp?
 

 

20.

This group of callbacks is most useful for cleaning up or undoing any external effects of __ or __ groups?
 

 

21.

Which of the following can be used to stop the reactivity of the autorun()?
 

 

22.

Which one of the following meteor packages provides meteor template {{> loginButton}} helper?

 

23.

Meteor find() in publish returns data despite empty selector key, read the below example code?
 

 

24.

Which of the following packages are exists for reactivity?
 

 

25.

Which of the following methods in Meteor is equivalent of Jquery $(document).ready(function() { ... }); ?

 

26.

How to make reactive UI when variable is changed in Meteor?
 

27.

Which one of the following rule allow user to edit 'roles' property?
 

 

28.

Which of the following is not a valid HTTP request?
 

 

29.

From the list below, select the option that is not satisfied with Regular Expression searching?
 

 

30.

What's the correct way to get this value on the client, Choose from the following options? { "public": { "facebook": { "token": "he882939201kl28819302" } } }

 

31.

Which of the following examples will set usernames instead of email in accounts?
 

 

32.

How can access the name of the current route in when using router?
 

 

33.

Which of the following is correct to not allow users to create account?
 

 

34.

To restrict the database updates so that no client can simply make changes to database?
 

 

35.

Which of the following API is correct to use for prevent the user login?
 

 

36.

To add an admin role to user which one of the following is correct?
 

 

37.

Where I can find the current Meteor build version?
 

 

38.

Which of the following are the flows of accounts-password package?
 

 

39.

Which of the following packages using for creating different user account functionalities in Meteor?

 

40.

Using the following code, How to detect if users authenticated?
 

 

41.

Which of the following templates shows login dropdown?
 

 

42.

Which of the following packages using for login forms?
 

 

43.

Which of the following is correct defining of route?
 

 

44.

Which of the following meteor function makes every function pass to it reactive?
 

 

45.

Meteor takes modern web apps to the next level, It enhances and builds upon the nested MVC design pattern by implementing key features?

 

46.

This solution works, but it has an issue. What is it? Meteor.subscribe("getCommets"); var userSubs = new SubsManager(); Template.comments.helpers({ getComments: function(){ return Comments.find(); }, author: function(){ var user = Users.findOne(this.author); if(user){ return user.name; }else{ userSubs.subscribe("getUser", this.author); } } })

 

47.

Meteor show objects only if logged in reactive?
 

 

48.

How can a variable type validate?
 

 

49.

Using iron router which one of the following is correct syntax for route?
 

 

50.

Meteor reactive subscriptions, study the following code and choose the right answer?
 

 

51.

What’s the suitable index for the following query? db.leaderboard.find({month: 10}, {sort: {point: 1}, limit: 10});

 

52.

Which of the following properties set default template if template will be not found?
 

 

53.

How to add a specific sidebar to route, using to following exmple?
 

 

54.

Use layouts with meteor-router, Choose the correct answer?
 

 

55.

Which of the following cursors are exists in Meteor Collection?
 

 

56.

Which one of the following is correct way to add and use markdown in templates?
 

 

57.

How to create click counter (with database) in Meteor?
 

 

58.

Which of the following values supports ReactiveVars?
 

 

59.

How to filter database query results?
 

 

60.

How to access meteor collection through the database?
 

 

61.

Which of the following packages using for ReactiveVar?
 

 

62.

Which of the following is correct to get the counter from the Template helpers ? import { ReactiveVar } from 'meteor/reactive-var' Template.MainLayout.onCreated(function(){ this.counter = new ReactiveVar(0); }) Template.MainLayout.helpers({ getCounter: function(){ // Get counter here } })

 

63.

Which of the following template tags sets data context?
 

 

64.

The object will be visible from the callbacks added with and methods and from event handlers?

 

65.

Which of the template engines using in Meteor?
 

 

66.

How can I use condition on the meteor template?
 

 

67.

Which of the following template event hooks calling when user leaving the page?
 

 

68.

69.

Which one of the following in template let HTML escape that is opening door for XSS and other attacks?

 

70.

How do we make the below query oplog ready? Meteor.publish('todos', function () { return Todos.find({}, {limit: 10}); });

 

71.

How to modify Database from UI in Meteor App?
 

 

72.

Choose the correct way to write the getCollaborators publication with this method. It accepts an appId and should return collaborators as Users documents? // app {

73.

ReactiveVars can hold any value, while Session variables are limited to or ?
 

 

74.

Meteor mongo aggregation, Select a pipeline operator that is not part of the MongoDB aggregation pipeline?

 

75.

Making if Statement reactive in Meteor using the following code snippet?
 

 

76.

Which of the following is correct to publish specific fields?
 

 

77.

Which of the following will return all Posts sorted by timePublished in descending order?
 

 

78.

How to enforce rules on updating our collections?
 

 

79.

To change the values of a document without deleting it first, use the __ operator. This operator will only change the values of the specified fields without affecting the rest of the document?

 

80.

This data model works pretty well, But it has an one major weak point. Which of the following do you think it is? { "_id": "one", "text": "Meteor - Full Stack Javascript Platform", "parent": null } { "_id": "two", "text": "Why do you say so?", "parent": "one" } {{each getComments}} {{text}} {{if haveChildren}} {{> comments}} {{/if}} {{/each}} Template.comments.helpers({ getComments: function(){ var parent = this._id || null; return Comments.find({parent: parent}); }, haveChildren: function(){ return Comments.find({parent: this._id}).count() > 0; } })

 

81.

Meteor’s automatic handling of optimistic UI, if a method unexpectedly fails the optimistic changes will roll back and the Minimongo database will end up in a consistent state?

 

82.

Using the following code, how do you detect if users authenticated?

83.

Which one of the following rules will allow users to edit 'roles' property?

84.

Which of the following packages is used for login forms? (check all that apply)

85.

Which of the following will not allow users to create an account?

86.

Which of the following API is correct to use to prevent the user login?

87.

Which of the following packages is used for creating different user account functionalities in Meteor?

88.

Which of the following statement is True based on Using Reactive MySQL Databases in Meteor?

89.

How do you access Meteor collection through the database?

90.

A Meteor collection is like an advanced _____ object?

91.

How do you enforce rules on updating our collections?

92.

How do you filter database query results?

93.

How do you use Meteor methods inside of a template helper? 

94.

Which of the following is a valid Meteor methods definition? 

95.

Meteor shows objects only if logged in reactive? 

96.

How can you use the template below included to the HTML page? {{text}} 

97.

Which of the following packages exists for reactivity?

98.

How do you add a specific sidebar to route using the following example? 

99.

Which of the following is the correct defining of route?

100.

Which of the following commands created a meteor app named myApp?

101.

Which of the following packages exist for reactivity? (Check all that apply)

102.

How can the date below be serialized? var myJsonDate = '{

103.

Which property belongs to Tracker.Computation Object?

104.

Which function can be used to validate a variable type?

105.

What is wrong with the below sample code? Meteor.subscribe(

106.

Make the statement reactive in Meteor using the following code snippet?

107.

Which of the following key features are implemented by Meteor?

108.

Which meteor function allows you to run a function that depends on reactive data sources, in such a way that if there are changes to the data later, the function will be rerun?

109.

Which code shows the element with id 'submit-btn' for logged in users?

110.

Which option will make reactive UI when the variable is changed in Meteor?

111.

Which of the following values are supported by ReactiveVar?

112.

Which command creates a meteor app named myApp?

113.

Which one of the following is a valid Meteor reactive subscriptions sample code?

114.

What could be the reason the client couldn't render the author name for the below sample code? Meteor.publish(

115.

Which of the following packages is used for ReactiveVar?

116.

Which callback function is called when a template is created?

117.

Which of the following is the correct syntax for defining a template?

118.

Which statement is correct for using Reactive MySQL Databases in Meteor?

119.

Which of the following is the correct way to get this value on the client? {

120.

Which of the following methods are used to setup access in Collections? (Check all that apply)

121.

Which of the following can be used to get a current logged in user ID?

122.

Which of the following cursors exist in Meteor Collection? (Check all that apply)

123.

Which pipeline operator is not part of the MongoDB aggregation pipeline?

124.

Which of the following is a valid collection definition?

125.

Which option(s) will allow you to create a click counter with database in Meteor?

126.

Which of the following is the correct way to create a helper function?

127.

How can you get this.userId in function inside Meteor method?

128.

Which option shows how to get a Meteor method to return a function?

129.

Which one of the following will set output to

130.

Which of the following is the correct definition of a route?

131.

Which of the following is a correct way of calling a method?

132.

Which of the following is the correct syntax to update post title in a collection document?

133.

Using the following example how can you use Filter in a Meteor Collection?

134.

Which of the following will publish a post from a certain author?

135.

Which of the following sample code is valid to filter Meteor database query results?

136.

Which of the following is the correct way to create a collection named 'posts'?

137.

Which command is used to restrict the updates to a database by any client?

138.

Choose the correct example method in collection?

139.

How can Database from UI in Meteor App be modified?

140.

Which of the following is the correct way to publish and subscribe to posts?

141.

Which of the following will allow you to publish specific fields?

142.

The collections contain documents and each document has its own unique ID which is represented by?

143.

Which one of the following is used to search data in the collection MyCollection?

144.

This data model works pretty well, however it has an one major weak point. Which of the following do you think it is? {

145.

Which one of the following will return all posts sorted by timePublished in descending order?

146.

Which of the following methods will get the name of the route?

147.

How many arguments does a Meteor method support?

148.

Which of the following packages are used for login forms? (Check all that apply)

149.

Which of the following is a valid click event for the button below?