Explain null and zero-length string values.
What will be an ideal response?
Null is a field value that doesn't exist (has never been entered). Indicates unknown data.
Zero-length string value is a deliberate entry with no characters. It is entered as "" (2 quotation marks).
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A(n) _______ is a collection of key–value pairs.
What will be an ideal response?
COGNITIVE ASSESSMENT Which of the following statements is not true of Wi-Fi?
A. When a Wi-Fi network accesses the Internet, it works in conjunction with the TCP/IP network standard. B. Wi-Fi sometimes is referred to as wireless Ethernet. C. Even if two products are Wi-Fi Certified, they must share the same platform in order to communicate. D. In open or outdoor areas free from interference, computers or devices should be within 300 feet of each other to be able to communicate.
Consider a computer with a bit field instruction of the form BFFFO R1,(R2),{R3:R4} that locates the first bit set to one in the specified bit field. After this instruction has been executed, register R1 contains the position of the first bit set to one, or the length of the bit field, if the bit field is all zeros. Register R2 contains the address of a word in memory, register R3 contains the offset of the bit field from the word pointed at by R2, and R4 contains the width of the bit field from 1 to 32 (empty bit fields are not supported).
What will be an ideal response?
You can use the History Brush tool to restore painted pixels.
Answer the following statement true (T) or false (F)