The three layers that compose a typical GUI on a Linux system are ________, ________ and ________.
a) the kernel, a video driver, the X Window System
b) the X Window System, a display adapter, a desktop environment
c) the X Window System, a window manager, a desktop environment
d) a desktop environment, a video driver, a display adapter
c) the X Window System, a window manager, a desktop environment
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A queue is a __________ data structure.
a. FOFI. b. FIFO. c. OFIF. d. IFOF.
Before populating a table, which is the correct sequence of steps?
A) Design the table, name the table, save the database. B) Create the database, create the table, design the table, save and name the database. C) Create and name the database; save the database; design, create and name the table. D) Create the table, design the table, name the table, save and name the database.
Which of the following is NOT an application of stacks in computer science?
A. implementation of a hash-based database search function B. managing computer memory in support of function calls C. supporting the undo feature in a text editor D. maintaining a history of visited links by a web browser
Answer the following statements true (T) or false (F)
1. In S/MIME each conventional key is used a total of three times. 2. DKIM has been widely adopted by a range of e-mail providers and many Internet service providers. 3. SMTP is used between the message user agent and the mail submission agent. 4. A message store cannot be located on the same machine as the MUA. 5. An ADMD is an Internet e-mail provider.