Set of characters used to authenticate a computer user is called 

Which of the following statements about firewall is correct? 

(a) Explain the following Internet terms
    (i) Sign in; (ii) Search engine
(b) Figure 1 and 2 illustrate the access methods.

(i) Identity the hle access method illustrated in:
   I. Figure 1; II. Figure 2.
(ii) State one advantage and one disadvantage each for the file access m method illustrated in:
I. Figure 1;
  Advantage:
  Disadvantage:
II. Figure 2.
  Advantage:
  Disadvantage:

a(i) What is data cable?
(ii) List two types of data cable.
(iii) Explain how bus speed can affect the speed of data.

(b) In the context of data conversion, explain the following terms:
(i) register; (i) address.

(a) Explain the following computer terms
(i) fle; (ii) record; (ii) field

(b) In a school registry, computer system is used to store students details.
(i) In addition to name and address fields in a student's record, list three other fields that may be included.
(i) Outline the steps involved in editing the field of a student's record.
(iii) Name two database applications that can be used for creating the record in 3b(i).