Client-Side vs Server-Side Scripting Languages

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Questions and Answers

What does ARP stand for and what does it do?

Address Resolution Protocol; connects the IP address to a specific network device

How many numbers make up an IP address and what is the range of each number?

Four numbers; each number is between 1 and 255

Why are port numbers important in networking?

To identify the function of packets and route them accordingly

How many port numbers does each IP address come with?

<p>Roughly 65,000 port numbers</p> Signup and view all the answers

What is the purpose of protocols in networking?

<p>To determine how data are transported over the Internet and provide various services</p> Signup and view all the answers

Name some of the services provided by networking protocols.

<p>Move web pages, move email, move files, move streaming media, provide watchdog functions</p> Signup and view all the answers

What is the potential risk of seeding the local machine's cache with incorrect data in the Domain Name Service (DNS)?

<p>Sending the user's communications to the wrong place</p> Signup and view all the answers

How can shutting down a major portion of the Internet be achieved through polluting the database of DNS servers?

<p>By denying access to the DNS server that provides address resolution to a population of users</p> Signup and view all the answers

What is the consequence if the DHCP server is compromised and starts issuing wrong information?

<p>Severely limiting the ability of computers on the net to access the Internet</p> Signup and view all the answers

Why should users declare their character set when configuring their browsers?

<p>To prevent garbled displays or unintended meanings</p> Signup and view all the answers

What is the role of HTML in web pages according to the text?

<p>Formatting the text and images</p> Signup and view all the answers

What is the recommended security setting for browsers according to the text?

<p>High security and scripting off</p> Signup and view all the answers

What is the Internet Hypertext Transfer Protocol (HTTP) responsible for?

<p>Carrying HTML codes and other information efficiently over the Internet</p> Signup and view all the answers

What is the defense against buffer overflows mentioned in the text?

<p>Good programming practice</p> Signup and view all the answers

How does the distributed nature of the DNS system mitigate the risk of DNS server pollution?

<p>Backup systems will likely kick in</p> Signup and view all the answers

What may happen if the stack suddenly grows too large and overwrites the area above it?

<p>Values stored in those regions may change, causing erratic behavior or crashes</p> Signup and view all the answers

How can stolen cookies be used maliciously?

<p>To remind the server of the user's identity and past interactions</p> Signup and view all the answers

Why is it important to verify user input before processing it?

<p>To ensure correct length and prevent misinterpretation</p> Signup and view all the answers

What are the most popular scripting languages for client-side applications?

<p>JavaScript, VBScript, Java, ActiveX Controls, Macromedia Flash</p> Signup and view all the answers

Why does a server-side script typically run?

<p>When a user has submitted answers to an application or form.</p> Signup and view all the answers

What are the two main paths in which the use of scripts on the server is divided?

<p>Communicate with the server directly; Communicate via the Common Gateway Interface (CGI).</p> Signup and view all the answers

Name some scripting languages used for server-side applications.

<p>Perl, Active Server Pages (ASP), PHP, ColdFusion, Java Server Pages (JSP), Python</p> Signup and view all the answers

What is the potential issue with malicious HTML tags in web requests?

<p>They can cause the server to generate unpredictable or dangerous pages.</p> Signup and view all the answers

How can webmasters prevent issues from malicious code from other clients?

<p>By turning off script functions and screening for embedded tags that indicate the presence of a script.</p> Signup and view all the answers

What is the risk associated with someone copying your cookies?

<p>Tricking the server into revealing personal information</p> Signup and view all the answers

What is one potential consequence of cross-site scripting?

<p>Exposing personal information or credit card numbers</p> Signup and view all the answers

How does ActiveX differ from Java in terms of memory isolation?

<p>ActiveX does not use an isolating area of memory like Java does</p> Signup and view all the answers

What is the role of XNTP in network processes?

<p>Maintaining consistent time across servers and clients</p> Signup and view all the answers

What impact can an attacker manipulating message times using XNTP have?

<p>Messages could masquerade as real or legitimate messages could be rendered suspect</p> Signup and view all the answers

What is the recommended defense strategy against exploits like cross-site scripting?

<p>Ensuring each server is properly protected</p> Signup and view all the answers

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