A transaction is a sequence of database operations that access the database.

List and describe the properties that all database transactions should display.

The x86 includes the following instruction:

IMUL op1, op2, immediate

This instruction multiplies op2, which may be either register or memory, by the immediate operand value, and places the result in op1, which must be a register. There is no other three-operand instruction of this sort in the instruction set. What is the possible use of such an instruction?

The ANSI has defined standards that govern SQL database transactions. Transaction support is provided by two SQL statements: ____ and ROLLBACK.

A) RETRIEVE

B) ASSIGN

C) UPDATE

D) COMMIT

Using the grammar in previous Example, show a parse tree and a leftmost derivation for each of the following statements:

a. A=A *(B+(C * A))

b. B=C *(A * C+B)

c. A=A *(B+(C))

Find the content of the A register after each instruction as the following sequence of instructions is executed:

$$\begin{matrix} \text{LDAA} & \# \$01\\ \text{ADDA} & \# \$F1\\ \text{CLRA}\\ \end{matrix}$$

Is the N bit of the condition-code register set or clear? Is the Z bit of the condition-code register set or clear?

If x=6.5 inches, what is the area of the entire given figure? The lengths shown in the figure are in inches.

Discuss the main characteristics of the database approach and how it differs from traditional file systems.

Using the circuit construction algorithm of, design a circuit using only AND, OR, and NOT gates to implement the following truth table.

$$\begin{array}{ccc}{a} & {b} & {\text { Output }} \\ {0} & {0} & {1} \\ {0} & {1} & {1} \\ {1} & {0} & {0} \\ {1} & {1} & {1}\end{array}$$

Describe the benefits of computer-integrated manufacturing operations.

Explain the difference between register-to-register, register-to-memory, and memory-to-memory instructions.

Consider the following IP address.

1. 124.77.8.5
2. 131.11.0.9
3. 190.66.250.10
4. 196.5.89.44

Which list represents the IP address class of each listed IP address?

Which one of the following statements is most accurate for law enforcement?

A. Law enforcement agencies are employed by the court system.

B. Ordinary police officers aren't required to understand how to gather evidence.

C. Law enforcement officers are mainly required to uphold the law.

D. There is no county law enforcement department.

Why do law enforcement agencies use drones?

What are the different stages of processing a query in a DDBMS?