Npower ITF+ Study Guide Questions and
Answers 100% Pass
The broadcast signal from a recently installed wireless acess point is not as
strong as expected. Which of the following actions would BEST improve
the signal strength?
Select one:
A. Update from 802.11b to 802.11g
B. Ensure source of EMI are removed
C: Enable WPA2-Enterprise
D: Use WiFi Protected Setup - ANSWER✔✔-B: Ensure source of EMI are
removed,
Electromagnetic interference can significantly impact wireless signals,
causing them to be weakened or even lost. Removing any sources of EMI,
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/71
,such as other electronic devices or appliances, can help improve the
wireless signal strength.
A user is getting an error message when trying to go to a website. A
technician asks the user a few questions to find out more about the issue.
The technician opens a browser locally and browses to the same site as the
user. Which of the following troubleshooting steps is the technician using
by browsing to the same site?
Select one:
A. Establish a plan of action
B. Find the root cause
C. Duplicate the problem
D. Gather information - ANSWER✔✔-C: Duplicate the problem,
Duplicating the problem is an essential step in troubleshooting any
technical issue. By browsing to the same site, the technician is attempting
to reproduce the error that the user is experiencing, which is a crucial step
in isolating the root cause of the issue.
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,Which of the following relational database constructs is used to ensure
valid values are entered for a column?
Select one:
A. Permissions
B. Constraint
C. Hypervisor type 2
D. Schema - ANSWER✔✔-B: Constraint,
A constraint is a rule that is defined in a relational database to ensure the
validity and accuracy of the data that is entered into it. Constraints can be
applied to one or more columns in a database table and can be used to
enforce a wide range of rules, such as data type, uniqueness, and foreign
key relationships.
Application Architecture models have how many layers?
Select one:
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, A. 2
B. 5
C. 1
D. 3 - ANSWER✔✔-D: 3,
The three layers of application architecture models are:
Presentation layer
Business layer
Data storage layer
Which of the following actions is the FINAL step in the standard
troubleshooting methodology?
Select one:
A. Create a new theory of cause
B. Research the problem online
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Answers 100% Pass
The broadcast signal from a recently installed wireless acess point is not as
strong as expected. Which of the following actions would BEST improve
the signal strength?
Select one:
A. Update from 802.11b to 802.11g
B. Ensure source of EMI are removed
C: Enable WPA2-Enterprise
D: Use WiFi Protected Setup - ANSWER✔✔-B: Ensure source of EMI are
removed,
Electromagnetic interference can significantly impact wireless signals,
causing them to be weakened or even lost. Removing any sources of EMI,
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/71
,such as other electronic devices or appliances, can help improve the
wireless signal strength.
A user is getting an error message when trying to go to a website. A
technician asks the user a few questions to find out more about the issue.
The technician opens a browser locally and browses to the same site as the
user. Which of the following troubleshooting steps is the technician using
by browsing to the same site?
Select one:
A. Establish a plan of action
B. Find the root cause
C. Duplicate the problem
D. Gather information - ANSWER✔✔-C: Duplicate the problem,
Duplicating the problem is an essential step in troubleshooting any
technical issue. By browsing to the same site, the technician is attempting
to reproduce the error that the user is experiencing, which is a crucial step
in isolating the root cause of the issue.
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 2/71
,Which of the following relational database constructs is used to ensure
valid values are entered for a column?
Select one:
A. Permissions
B. Constraint
C. Hypervisor type 2
D. Schema - ANSWER✔✔-B: Constraint,
A constraint is a rule that is defined in a relational database to ensure the
validity and accuracy of the data that is entered into it. Constraints can be
applied to one or more columns in a database table and can be used to
enforce a wide range of rules, such as data type, uniqueness, and foreign
key relationships.
Application Architecture models have how many layers?
Select one:
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 3/71
, A. 2
B. 5
C. 1
D. 3 - ANSWER✔✔-D: 3,
The three layers of application architecture models are:
Presentation layer
Business layer
Data storage layer
Which of the following actions is the FINAL step in the standard
troubleshooting methodology?
Select one:
A. Create a new theory of cause
B. Research the problem online
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 4/71
