Answer all questions
1. Information technology is concerned with improvements in a variety of
human and organizational problem-solving through the design, development, and
use of technologically based systems and processes that enhance the efficiency
and effectiveness of information in a variety of strategic, tactical, and
operational situations.
(a)
Define Information Technology
(b)
Explain the evolution phases below.
(i)
Cloud computing
(ii)
Client Server
2. In hexadecimal number system, what are the next 3
digit after 3F
a) Convert 110100011002
to hexadecimal. Show your work flow.
b) Convert A916 to binary.
Show your work flow.
c)
Convert 2710 to binary.
Show your work flow.
e)
Convert 11010101012 to decimal numbers. Show your work flow.
3. Storage capacity refers to
how much disk space that one or more storage devices provide. It measures the volume of data a
computer system may contain.
(a)
What is byte?
(b)
How many
bytes are there in a word “ COMPUTERS ” ?
4. a) 512 MB = _________ GB. b) In hexadecimal number system, state 3 numbers after AF.
c) In decimal number system, state 3 numbers after 101101.
d) 6 kb = ? byte
5. Define Network Topology.
6. State 3 network topology
7. What is
the main central device for Star Topology ?
8. Bus network topology consist of a single central cable.
What is that ?
9. What is a single bus cable which connecting each device ?
10. A …………………………… is required at each end of the bus cable to prevent the signal from bouncing back and forth on the bus cable.
11. Draw a bus network topology with the backbone, t-connector and terminator.
12. Draw a star network topology with one hub/switch and FIVE devices.
9. What is a single bus cable which connecting each device ?
10. A …………………………… is required at each end of the bus cable to prevent the signal from bouncing back and forth on the bus cable.
11. Draw a bus network topology with the backbone, t-connector and terminator.
12. Draw a star network topology with one hub/switch and FIVE devices.
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