The Internet Database Environment Questions and Answers

Answer: A

Correct answer: True

A router reads each packet’s destination address and forwards it along the best available path, adapting as the network changes. It is a forwarding device, which is exactly what distinguishes it from an intrusion detection system - the latter inspects traffic but does not carry it.

Answer: A

Correct answer: True

Both are lightweight scripting languages embedded in web pages and interpreted at run time, and they serve the same purposes. The difference is one of syntax and support: JavaScript works in every browser, whereas VBScript was largely confined to Microsoft’s.

Answer: B

Correct answer: An interface that accepts and returns data that may be written in any language that produces an executable file.

CGI defines how a web server passes a request to an external program and receives the response, and it says nothing about how that program is written. Any language producing an executable will serve, which is what made it the first widely used mechanism for generating pages from a database.

Answer: C

Correct answer: May transmit message packets to the correct destination.

Forwarding packets to their destination is the work of a router. An intrusion detection system watches rather than forwards: it inspects traffic for signs of attack, looks for known attack signatures, and may run deception systems to draw an intruder into a monitored area.

Answer: A

Correct answer: True

Every message between the internal network and the outside passes through the proxy, so it can be inspected and permitted or refused according to policy. That interception is what makes it a control point, and it is why internal addresses are hidden from the outside.

Answer: C

Correct answer: Static information using HTML or JavaScript.

Without a database behind it a site can only serve what was written into its files, so its content changes when someone edits a page. Adding a database is what makes a page generated per request from current data, which is the difference between a brochure and an application.

Answer: C

Correct answer: Connectivity to no customers

An intranet is internal by definition: the same protocols as the public web, but reachable only from within the organisation. Extending access to selected customers and suppliers makes it an extranet, which is the next step outward, and opening it to everyone makes it a public site.

Answer: D

Correct answer: It allows for coding of custom tags in an HTML file.

Active Server Pages embed server-side tags in an HTML file, which the server interprets before sending the page on. ASP files carry the .asp extension - .cfm belongs to ColdFusion - and they execute on the server, not the client.

Answer: A

Correct answer: True

XSL describes how an XML document is to be transformed and presented, and it is written as a separate style sheet. Keeping it separate is what allows one document to be rendered as a web page, as print, or as another XML document altogether, without the source being altered.

Answer: A

Correct answer: True

Browsers long ago stopped being page viewers alone. Mail, messaging, bookmarking, history, address resolution and search are all built in or reachable through the same interface, which is what made the browser the general client for internet services.