Questions

The Control Unit (CU) is digital circuitry containedwithin the processor that coordinates the sequence ofdata movements into, out of, and between a processorsmany sub-units

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing.

Your IP address is assigned by local network devices or your ISP(Internet Service Provider), and therefore will change.

Lutheranism, the branch of Christianity that traces its interpretation of the Christian religion to the teachings of Martin Luther. 

Animals active at night are known as Nocturnal.

When a person sits on a scale, it is his weight against which the gold bars are measured. Also, we measure something with a scale, not against it.'Occasion' is a particular event or the time at which it takes place. 'Date' is the number of a day along with the month of the year specified by a number. Since no number is present, 'occasion' is correct. Wherein and whereby have the same meaning in the sentence and since none of the options mention the combination, it can be ignored. 'Equity' is the quality of being fair and impartial, which will not suit the sentence. Hence, the correct
answer is 4.