Tag: web technology

Questions Related to web technology

ABC company has a very old web application that was built on Servlets, JSP and a simple proprietary MVC framework which they must use. This application is mostly used for reporting purposes and retrieves data from DB2 through JDBC. They are planning to enhance the functionality of the application and also deploy on a Java EE application server. They approached you for suggestions to improve the application code. Which of the following would not be a valid recommendation (best-fit)? Choose one answer.
technology web technology

  1. Refactor the common scriptlet code into tag libraries wherever possible

  2. Create a common look & feel using templates, CSS files.

  3. Use Entities

  4. Use Expression Language

Show answer
Correct Option: C

ABC Company has decided to migrate existing J2EE application built using servlets, JSP, JMS, session & entity Beans to Java EE. They have approached you for recommendations. Which of the following are valid recommendations? Select two choices. Choose at least one answer.
technology web technology

  1. Replace entity beans with JPA entity classes

  2. Use the new JMS API

  3. Replace session Beans with web services

  4. Use JCA

Show answer
Correct Option: A,B

You are architecting a new web based labor claim management application. Currently the users have a Java Swing-based application running on their local PCs, and you want to implement the new web-based solution with a GUI that is similar to their desktop application. Once the users have filled in their hours then you must send the details to central labour system through a Web service. What of the following technologies would be required for building this application? (Choose two.) Choose at least one answer.
technology web technology

  1. JAX-WS

  2. JMS

  3. JSSE

  4. JCE

  5. JSF

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Correct Option: A,E

A variable $word is set to “HELLO WORLD”, which of the following script returns in title case?
technology web technology

  1. echo ucwords(strtolower($word)

  2. echo ucwords($word)

  3. echo ucfirst(strtolower($word)

  4. echo ucfirst($word)

Show answer
Correct Option: A
Explanation:

To solve this question, the user needs to know PHP string functions and the concept of case conversion.

  • ucwords(): This function converts the first character of each word in a string to uppercase.
  • strtolower(): This function converts a string to lowercase.
  • ucfirst(): This function converts the first character of a string to uppercase.

Option A: echo ucwords(strtolower($word)) - This option converts the string to lowercase using strtolower() function and then converts the first character of each word in the string to uppercase using ucwords() function. This will return the string in title case.

Option B: echo ucwords($word) - This option converts the first character of each word in the string to uppercase using ucwords() function. This will not convert the string to lowercase and therefore will not return the string in title case.

Option C: echo ucfirst(strtolower($word)) - This option converts the string to lowercase using strtolower() function and then converts the first character of the string to uppercase using ucfirst() function. This will not convert the first character of each word in the string to uppercase and therefore will not return the string in title case.

Option D: echo ucfirst($word) - This option converts the first character of the string to uppercase using ucfirst() function. This will not convert the first character of each word in the string to uppercase and therefore will not return the string in title case.

Therefore, the correct option is:

The Answer is: A. echo ucwords(strtolower($word))

The difference between include() and require()
technology web technology

  1. are different how they handle failure

  2. both are same in every aspects

  3. is include() produced a Fatal Error while require results in a Warning

  4. none of above

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Correct Option: A

Which of the following is NOT done with JavaScript ?

technology web technology

  1. Form Validation

  2. RGB Colors

  3. Browser Detection

  4. RGB Value

Show answer
Correct Option: B

AI Explanation

To answer this question, you need to understand the capabilities and functionalities of JavaScript. Let's go through each option to understand why it is correct or incorrect:

Option A) Form Validation - This option is correct because JavaScript can be used to validate form inputs and ensure that the data entered by the user is in the correct format.

Option B) RGB Colors - This option is incorrect because JavaScript can be used to manipulate and generate RGB colors. It can be used to dynamically change the color of elements on a webpage.

Option C) Browser Detection - This option is correct because JavaScript can be used to detect the user's browser and perform specific actions based on the browser type.

Option D) RGB Value - This option is correct because JavaScript can be used to manipulate and retrieve RGB values. It can be used to extract and modify individual color components of an RGB value.

The correct answer is B) RGB Colors. This option is incorrect because JavaScript can indeed be used to work with RGB colors.

It is usually advisable to keep as much JavaScript as possible in which section ?
technology web technology

  1. Head

  2. Layer

  3. Body

  4. Title

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Correct Option: A

JavaScript lines end with what
technology web technology

  1. comma

  2. semicolon

  3. colon

  4. Bracket

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Correct Option: B

Which of the following is NOT a type of popup box.
technology web technology

  1. Alert

  2. Confirm

  3. Radio

  4. Text

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Correct Option: C

The most common way to assign a value to a variable is by using what ?
technology web technology

  1. Equals sign

  2. Name It

  3. CSS

  4. HTML

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Correct Option: A