The main responsibility of a search engine's web crawler is to: <em>catalog </em><em>and </em><em>index </em><em>information on Web pages</em>.
<h3>What is a Web Crawler?</h3>
A web crawler can be described as a type of bot which is usually operated by search engines.
A web crawler helps to index the content of websites found in the internet in order for them to appear on search engines.
Therefore, the main responsibility of a search engine's web crawler is to: <em>catalog </em><em>and </em><em>index </em><em>information on Web pages</em>.
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Answer:
- public static String bothStart(String text1, String text2){
- String s = "";
-
- if(text1.length() > text2.length()) {
- for (int i = 0; i < text2.length(); i++) {
- if (text1.charAt(i) == text2.charAt(i)) {
- s += text1.charAt(i);
- }else{
- break;
- }
- }
- return s;
- }else{
- for (int i = 0; i < text1.length(); i++) {
- if (text1.charAt(i) == text2.charAt(i)) {
- s += text1.charAt(i);
- }else{
- break;
- }
- }
- return s;
- }
- }
Explanation:
Let's start with creating a static method <em>bothStart()</em> with two String type parameters, <em>text1 </em>&<em> text2</em> (Line 1).
<em />
Create a String type variable, <em>s,</em> which will hold the value of the longest substring that both inputs start with the same character (Line 2).
There are two possible situation here: either <em>text1 </em>longer than<em> text2 </em>or vice versa. Hence, we need to create if-else statements to handle these two position conditions (Line 4 & Line 13).
If the length of<em> text1</em> is longer than <em>text2</em>, the for-loop should only traverse both of strings up to the length of the <em>text2 </em>(Line 5). Within the for-loop, we can use<em> charAt()</em> method to extract individual character from the<em> text1</em> & <em>text2 </em>and compare with each other (Line 15). If they are matched, the character should be joined with the string s (Line 16). If not, break the loop.
The program logic from (Line 14 - 20) is similar to the code segment above (Line 4 -12) except for-loop traverse up to the length of <em>text1 .</em>
<em />
At the end, return the s as output (Line 21).
9. C
10. B
Hope this helps!
Answer:
c. It filters line noise form incoming power.
Explanation:
Uninterrupted Power Supply (UPS) provide power line conditioning in which they keep the output adjusted to keep it consistent if the input is too high or too low.
UPS also provides protection against electrical surges but the line conditioning protects from the noise.When the input is not consistent it may damage the network equipments so UPS also provides protection from that.
Answer:
To index web pages for quick retrieval of content
Explanation:
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