Which of the following is not a primary expression?
A. x
B. 'A'
C. "Welcome"
D. 2 * 3
E. (x / y)
Answer: D
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Answer the following statements true (T) or false (F)
1. Access to high-speed communication lines (such as cable) calls for a cable modem. 2. Some peripheral devices are linked directly to the processor. 3. A buffer is temporary memory or storage used to adjust for the speed differential between the processor and memory. 4. Certain functions (for example, deciding where the next byte can be found or stored in memory and counting the characters transferred to or from an external device) are common to almost all types of input and output. On larger machines, they are performed by each interface; in effect, they are duplicated for each device on the system. 5. On a mainframe computer, a channel handles device-independent functions and device- dependent functions are implemented through I/O control units or interface units.
The courts have determined that there are two conditions that must be met before evidence can be considered relevant. What are those two conditions?
a. It must be material. b. It must be probative. c. It must be truthful. d. It must be collected by an authorized law enforcement official.
The print command for Perl is almost identical to the print command used in which of the following programming languages?
A. Java B. C C. PHP D. Smalltalk
The ____________________ is a device that connects workstations to local area networks and retransmits the incoming frame.?
Fill in the blank(s) with the appropriate word(s).