Exam (elaborations)
ICT2621 EXAM PACK 2023
- Institution
- University Of South Africa (Unisa)
QUESTIONS WITH ANSWERS
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ICT2621EXAM
PACK 2023
QUESTIONS WITH ANSWERS
Email: musyokah11@gmail.com
,Ict2621
Section A
question
1 1
2 1
3 4
4 3
5 3
6 1
7 4
8 1
9 4
10 2
11 1
12 4
13 3
14 3
15 1
16 1
17 2
18 1
19 1
20 2
21 3
22 1
23 3
24 3
25 3
26 2
27 3
28 2
29 4
30 2
31 4
32 3
33 4
34 3
35 4
36 1
37 3
38 3
39 3
40 4
Section: B
Question 1
,Symbol Name Description
1.1.1
External agent The source or
destination of data
outside the system.
1.1.2
Data store Data at rest, being
stored for later use.
Usually corresponds to
a data entity on an
entity-relationship
diagram.
1.2
1.3
Data dictionary - a central storehouse of information about the system’s data. An analyst uses the data
dictionary to collect, document, and organize specific facts about the system, including the contents of
data flows, data stores, entities, and processes. The data dictionary also defines and describes all data
elements and meaningful combinations of data elements
1.4
Reports obtained from a data dictionary:
1. An alphabetized list of all data elements by name
2. A report describing each data element and indicating the user or department that is responsible
for data entry, updating, or deletion
, 3. A report of all data flows and data stores that use a particular data element
4. Detailed reports showing all characteristics of data elements, records, data flows, processes, or
any other selected item stored in the data dictionary
1.5
Structured English is a method of writing process specifications that combines structured programming
techniques with narrative English.
Structured English guidelines:
• Use only the three building blocks of sequence, selection, and iteration.
• Use indentation for readability.
• Use a limited vocabulary, including standard terms used in the data dictionary and specific
words that describe the processing rules.
Question 2
The most used forms of output technology for business systems is still in form of
screen displays and printed matter. List other current other output types and
technologies currently available:
• Internet-based information delivery such as emails and blogs
• Instant-messaging
• Wireless devices
• Digital audio, images and video
• Podcasts
• Automated fax systems
• Computer output to microfilm (COM)
• Computer output to digital media
• Specialised forms of outputs such as POS
Question 3
AfroStarBus 1…* Trips *….1 Passengers
3.2
Bus (Bus-Code, Bus-name, Buscapacity,)
Trips (Trip Code, Tripname, BusCode(FK)
Passengers(Bus-Code (FK), Trip-Code(FK), PlayerSpecialist-Appointment)
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