(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 metho...

Answer Details

a(i)Sign in: This means to enter a username, password or other authentication details to access a website, application or online service, allowing the user to access their account, personalized content and features.
(ii) Search engine: This is a website or program that enables people to find information online by searching for keywords or phrases. Examples include Google, Bing, Yahoo.

b(i)I. Figure 1: Random access method
II. Figure 2: Sequential access method.

(i) I. Figure 1:
Advantage: Records can be accessed directly regardless of physical location making it ideal for fast data retrieval.
Disadvantage: Complex indexing system required to manage record locations

II. Figure 2:
Advantage:
(i) Straightforward to implement as records are stored and accessed linearly.
(ii) Less prone to data corruption.
(ii) Efficient for large files.
Disadvantage:
Show data retrieval most especially if the desired record is located far into the sequence.