WebSQL is a SQL-like (26) language for extracting information from the weB. Its capabilities for performing navigation of web (27) make it a useful tool for automating several web-related tasks that require the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (30) Interface.
A. Router
B. Device
Computer
D. Gateway
Stack is quite simple. Many computer systems have stacks built into their circuitry. They also have machine-level instructions to operate the hardware stack. Stack is ______ in computer systems.
A. useless
B. not important
C. simple but important
D. too simple to be useful
Virtualization is an approach to IT that pools and shares (36) so that utilization is optimized and supplies automatically meet demanD. Traditional IT environments are often silos, where both technology and human (37) are aligned around an application or business function. With a virtualized (38) , people, processes, and technology are focused on meeting service levels, (39) is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization (40) that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.
A. advantages
B. resources
C. benefits
D. precedents
DOM is a platform-and language- (1) API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (2) . DOM is a (3) -based API to documents, which requires the whole document to be represented in (4) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (5) documents that do not fit into the memory available for processing.
A. text
B. image
C. page
D. graphic