Which of the following is not a disadvantage of default memberwise copy with objects containing pointers?
a. Having the possibility of leaving a dangling pointer.
b. Allowing both objects to point to the same dynamically allocated storage.
c. Allowing the destructor of one object to be called while leaving the second pointer, to the same memory location, intact.
d. Requiring the explicit overloading of the assignment operator.
d. Requiring the explicit overloading of the assignment operator.
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____ decides who should be trusted.
A. Logical security B. Virtual security C. Physical security D. Personnel security
Match each term with the correct statement below.
A. Originally designed for UNIX environments for point-to-point communications among computers, servers, and hosts using TCP/IP B. A starting-to-ending-point encryption technique that uses special encryption keys varying in length from 40 to 128 bits C. A WAN communications technology that relies on packet switching and virtual connection techniques to transmit at rates from 56 Kbps to 45 Mbps D. Like a tunnel through a larger network-such as the Internet, an enterprise network, or both-that is restricted to designated member clients only E. Encapsulates the data packet in the Hypertext Transfer Protocol (HTTP) used through Web communications F. A technology that uses advanced modulation techniques on regular telephone lines for high-speed networking at speeds of up to about 52 Mbps between subscribers and a telecommunications company G. A dedicated leased telephone line that can be used for data communications over multiple channels for speeds of up to 400.352 Mbps H. A data encryption technique employed between a server and a client, such as between a client's browser and an Internet server I. Can automatically negotiate communications with several network communications layers at once
Match each item with the correct statement below.
A. Shows suggested revisions in a document. B. C. A pane that can be displayed horizontally or vertically and provides a summary of changes made. D. E. A key item in the header of a news release, along with the date, the release date, and the subject. F. A document that shows the travel schedule of a business person. G. Formatting and _________ are generally shown in balloons. H. A plan for conducting a meeting. I. An itinerary is usually formatted using a _________. J. K. L. Use the _______________ command to make the data items in an itinerary easier to read. M. Typically included in an agenda heading, along with the meeting title, the date, and the time. N. O. A document prior to any revisions being made. P.
In the accompanying figure, the circled item is the ____.
A. cursor B. insertion point C. Signal bar D. Word counter