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| Section | Weight | Objectives |
|---|---|---|
| JavaScript Coding | 15% | - Core coding concepts
|
| Layouts | 20% | - CSS layout and positioning
|
| Graphics and Animation | 25% | - Styling and transformations
|
| Application Lifecycle Management | 20% | - Testing and debugging
|
| Forms | 20% | - Form elements and markup
|
>> IT Specialist INF-306 Answers Real Questions <<
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NEW QUESTION # 69
You are creating a form that asks a user to enter their phone number. The form must be submitted only if the phone number field is not empty and matches the format 111-444-7777. Which markup should you use?
Answer: B
Explanation:
The correct markup is option D. The type= " tel " input type is appropriate for telephone-number entry, but it does not automatically validate a specific telephone-number format because phone formats vary internationally. MDN notes that tel inputs allow telephone entry but are not automatically validated to a particular format. Therefore, a pattern attribute is required to enforce the exact structure. The regular expression [0-9]{3}-[0-9] {3}-[0-9]{4} requires three digits, a hyphen, three digits, another hyphen, and four digits, matching the requested format such as 111-444-7777. MDN defines the pattern attribute as a regular expression the input value must match for constraint validation. The required attribute is also necessary because the field must not be empty; MDN states that required indicates the user must specify a value before the form can be submitted. Option A only limits length. Option B lacks hyphen validation and required.
Option C hard-codes only specific digits. References/topics: HTML5 validation, tel, pattern, required, regular expressions.
NEW QUESTION # 70
Which two functions support 2D transformations in CSS3? Choose 2.
Answer: B,C
Explanation:
The correct transformation functions are matrix() and skew(). CSS transformations are applied with the transform property and accept transform functions that alter an element's rendered appearance in two- dimensional or three-dimensional space. MDN defines < transform-function > as a data type representing a transformation that can rotate, resize, distort, or move an element in 2D or 3D space. The matrix() function is valid because it defines a homogeneous two-dimensional transformation matrix, allowing translation, scaling, rotation, and skewing effects to be represented numerically in one function. The skew() function is also valid because it explicitly skews an element on the 2D plane. scroll() is not a CSS transform function; scrolling is handled through overflow behavior or scrolling APIs. move() is also not a valid CSS transform function; the standard transform function for movement is translate(). References/topics: CSS3 transforms, transform property, 2D transformation functions, matrix(), skew().
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NEW QUESTION # 71
Which value does the following JavaScript code fragment store in the variable num?
var num = localStorage.length;
Answer: D
Explanation:
The value stored in num is the number of key-value pairs currently stored in localStorage. The localStorage object implements the Web Storage Storage interface, which stores data as named string key/value entries for the current origin. Its length property is read-only and returns the number of data items stored in that Storage object, not the size of the stored data and not the remaining capacity. MDN's Storage reference explicitly defines length as returning the number of data items stored, and its example shows that after three items are added to localStorage, localStorage.length returns 3. Therefore, if the storage area contains five named entries, num receives 5; if it contains no entries, num receives 0. Option A is incorrect because available bytes are not exposed through length. Option B is unrelated to Web Storage. Option C is incorrect because browser storage quota or capacity is separate from the length property. References/topics: Web Storage API, localStorage, Storage.length, key-value storage, application state.
NEW QUESTION # 72
You need to ensure that the value of an input element is a valid 10-digit phone number with no symbols. The input element should initially display all zeroes, but that value should never be stored with the form.
Complete the markup by selecting the correct option from each drop-down list.
Answer:
Explanation:
Explanation:
< input id= " phone "
pattern= " [0-9]{10} "
placeholder= " 0000000000 " >
The correct first attribute is pattern because the requirement is to validate the entered value against a specific format: exactly ten numeric digits and no symbols. The regular expression [0-9]{10} means that only digits from 0 through 9 are allowed, and exactly ten of them must be entered. This prevents values such as 123-456-
7890, (123)4567890, or 123 456 7890 because those contain symbols or spaces. The correct second attribute is placeholder, not value, because the input should initially display all zeroes but that displayed text must not be submitted or stored with the form. A placeholder is hint text shown when the field is empty; it disappears when the user enters real data and is not submitted as the control's value. By contrast, value= " 0000000000 " would actually prepopulate the input and could be submitted if the user did not change it. The required option is not selected because the question focuses on format validation and display hint behavior, not mandatory completion. References/topics: HTML5 form validation, pattern, regular expressions, placeholder, input constraint validation.
NEW QUESTION # 73
The development team just released a new version of an app for your team to test. Which three tasks should you perform during testing? Choose 3.
Answer: B,D,F
Explanation:
The correct testing tasks are to verify application functionality, find defects, and ensure the app meets design specifications. Testing occurs after development produces a build and before acceptance or deployment decisions are made. Its purpose is to compare the implemented application against expected behavior, requirements, and design specifications. Option A is correct because functional testing confirms that user workflows, controls, validation rules, scripts, and page interactions work as intended. Option C is correct because defect discovery is a core testing responsibility; testers identify failures, inconsistencies, regressions, and unexpected behavior so the development team can correct them. Option D is correct because the app must be evaluated against the documented design, including layout, navigation, responsiveness, accessibility expectations, and feature behavior. Asking customers to submit bugs or feature requests is a feedback or product-management activity, not the primary task of an internal test cycle immediately following a development release. Checking syntax errors is primarily handled during development, linting, editing, or build processing; a released test build should already parse and execute sufficiently for functional testing.
References/topics: application lifecycle management, test phase, defect detection, functional testing, design specification validation.
NEW QUESTION # 74
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