You have just installed a video adapter and nothing outputs after the computer powers on. Which of the following is NOT a logical thing to check?
A) Card inserts fully into expansion slot
B) Monitor cable attaches correctly to adapter
C) Screensaver setting in Display Control Panel
D) Video driver for the operating system
E) Video card power connection
C
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What is the most likely weak link when using asymmetric encryption for verifying message integrity and nonrepudiation?
A. the use of the sender's private key B. the hashing algorithm used to generate a message digest C. the source of the public keys D. the integrity of the private keys
Answer the following statements true (T) or false (F)
1. It is useful to define a class for which no objects may be defined. 2. It is legal to have all member functions of a class be pure virtual functions. 3. A derived class destructor always invokes the base class destructor. 4. The base class destructor must be virtual. 5. This is legal code. ``` class B { public: // . . . virtual void f() = 0; }; int main() { B b1, b2; /*. . .*/ } ```
To remove conditional formatting from a range of cells, after selecting the range of cells:
A) click Conditional Formatting, point to Clear Rules, and select Clear Rules from Selected Cells. B) click Conditional Formatting and click Delete Rules. C) press Backspace. D) press Delete.
Which of the following is NOT an example of an operating system?
A. macOS B. Android C. Office D. Windows