TECHNOLOGY APPLICATIONS EC-12
(242) NEWEST ACTUAL EXAM (FROM
MRS SWEEK-S SET) PRACTICE WITH
COMPLETE QUESTIONS WITH
ANSWERS//VERIFIED//GRADED A+//
Q1: Which of the following types of networks allows parents to register for accounts to view their
child's grades on the school district Web site?
A) Router
B) Server
C) Intranet
D) Extranet
Answer: D) Extranet
Rationale: An extranet allows controlled access from outside parties to information in secured networks.
A router is a physical device that connects networks, a server stores data, and an intranet is only
accessible by authorized internal members .
Q2: Which of the following descriptions best illustrates a typical intranet network structure used by
many school districts?
A) A worldwide connection of networks accessible from any location with Internet access
B) A private network that uses World Wide Web communication standards but is not connected to the
Web and is accessible only to on-site staff
C) A private network that utilizes WWW communication standards with specific parts accessible outside
the network
D) A network connection of computers with common print and file servers for sharing documents
Answer: B)
Rationale: An intranet is an internal network cut off from the World Wide Web that uses WWW
standards of communication. The Internet is a worldwide connection; an extranet allows outside access
to parts of the network .
Q3: Which of the following describes the primary function of a DNS server?
A) It provides resolution of host names to IP addresses
B) It provides security for a network with the use of control lists
C) It secures network traffic through shared key encryption
D) It secures client access through login and authentication
,Answer: A)
Rationale: The Domain Name System (DNS) is an Internet service that translates domain names
(alphabetic, easier to remember) into IP addresses. The Internet is based on IP addresses, so DNS
translates the name into the corresponding IP address .
Q4: A teacher instructs students on how to safely research information on the Internet, participate in
electronic discussions, follow accepted practices (e.g., netiquette), and use approved passwords. The
teacher primarily understands the importance of implementing which objective of information
literacy?
A) Students comprehend the legal and social implications of using information
B) Students use information effectively to accomplish a specific purpose
C) Students evaluate information and its sources critically
D) Students retrieve information effectively and efficiently
Answer: A)
Rationale: Netiquette refers to proper use of the Internet and falls under the economic, legal, and social
issues of uses of information. Rules and netiquette do not fall under accessing information, selecting
information, or using information to accomplish a specific purpose .
Q5: According to the ALA (American Library Association), what are three criteria to consider when
determining the reliability of a web site?
A) Design, Date, Domain
B) Communication, Content, Clarity
C) Authority, Audience, Accuracy
D) Objectivity, Overall Color, Originality
Answer: C) Authority, Audience, Accuracy
Rationale: The American Library Association recommends evaluating web sites based on authority (who
created the site), audience (who is the intended reader), and accuracy (is the information correct) .
Q6: While researching the origins of a community, a student discovers a conflict when comparing data
obtained from different sources. Which of the following sources is considered the most reliable?
A) An editorial commemorating the hundredth anniversary of the community's founding
B) Famous anecdotes in pamphlets distributed by the local chamber of commerce
C) Published letters written by one of the community's original settlers
D) A recent biography of the life of the individual credited with founding the community
Answer: C) Published letters written by one of the community's original settlers
Rationale: Letters from the time being researched qualify as primary sources and are considered most
reliable. Editorials, anecdotes, and recent biographies are secondary sources and therefore less reliable,
with possible bias .
Q7: As Brian researches his paper on gun control, he finds several internet sources. Which of the
following criteria should he disregard when determining the most reliable source?
,A) Who is the intended audience?
B) Does Brian agree with all the information provided?
C) Does the web site creator cite sources?
D) Does the web site have a known domain such as .gov, .org, .edu?
Answer: B) Does Brian agree with all the information provided?
Rationale: Personal agreement with the information is not a valid criterion for determining reliability.
The intended audience, citation of sources, and domain type are valid criteria for evaluating sources .
Section B: File Formats & Digital Media
Q8: Pixels are:
A) A type of file compression
B) The smallest element in a picture
C) A color mode
D) A network protocol
Answer: B) The smallest element in a picture
Rationale: Pixels (picture elements) are the smallest elements in a picture—small squares that make up
digital images. Resolution is the number of pixels in an image, measured by ppi (pixels per inch) .
Q9: Which of the following file formats is used for web pages, can display 16 million different colors,
but degrades each time it is saved?
A) GIF
B) PNG
C) JPEG
D) BMP
Answer: C) JPEG
Rationale: JPEG (Joint Photographic Experts Group) is used for web pages and can display 16 million
different colors. However, each time the file is saved, it compresses the image smaller, causing image
degradation. GIF uses 256 colors and PNG supports variable transparency .
Q10: A GIF logo displayed on an image-based background exhibits a halo effect. Changing the logo to a
PNG format will make it possible to adjust which characteristic to correct the problem?
A) Antialiasing
B) Opacity
C) Rasterization
D) Transparency
Answer: B) Opacity
, Rationale: PNG formats support variable transparency (alpha channels), which allows users to control
the degree to which an image is transparent. GIF files support transparency but do not support alpha
channels, so the transparency cannot be varied. PNG allows the logo to be properly layered over various
backgrounds .
Q11: A student inserts a bitmap image into a Web page. When the page is uploaded, the image looks
blocky and the quality is poor. Which of the following causes pixilation of this kind?
A) The image was saved at 48 bits instead of 16 bits
B) The student did not rasterize the image
C) The student did not compress the image
D) The image was saved at too low a resolution
Answer: D) The image was saved at too low a resolution
Rationale: Pixilation occurs when an image is displayed at a larger size than its resolution supports.
Higher resolution creates better images; more PPI (pixels per inch) means more memory is needed, but
lower resolution results in blocky, poor-quality images .
Q12: A student wishes to replace one scene in a video with another that will run longer. If the student
is using linear editing, which approach is uniquely required?
A) Adding transitions between the previous material and the new clip
B) Copying the longer clip onto the student's computer hard drive
C) Rebuilding the video from the edited clip to the end of the video
D) Using drag and drop to replace the original clip
Answer: C) Rebuilding the video from the edited clip to the end of the video
Rationale: In linear editing, the only way to fix the problem of a new clip covering up some of the next
scene on the tape is to rebuild the video from that edit to the end. Drag and drop is a feature of
nonlinear editing, not unique to linear editing .
Q13: For a multimedia production, students wish to import a graphic that fades from 100% opaque to
100% transparent. Which file format best supports this type of varying transparency?
A) GIF
B) JPEG
C) PNG
D) BMP
Answer: C) PNG
Rationale: PNG files support variable transparency (alpha channels), which allows users to control the
degree of transparency. GIF supports transparency but not alpha channels, so transparency cannot be
varied. JPEG does not support transparency .
Q14: A teacher is preparing a lesson to instruct students how to edit photographs for publication on
the Web and in print. Which principle should the teacher primarily emphasize?
(242) NEWEST ACTUAL EXAM (FROM
MRS SWEEK-S SET) PRACTICE WITH
COMPLETE QUESTIONS WITH
ANSWERS//VERIFIED//GRADED A+//
Q1: Which of the following types of networks allows parents to register for accounts to view their
child's grades on the school district Web site?
A) Router
B) Server
C) Intranet
D) Extranet
Answer: D) Extranet
Rationale: An extranet allows controlled access from outside parties to information in secured networks.
A router is a physical device that connects networks, a server stores data, and an intranet is only
accessible by authorized internal members .
Q2: Which of the following descriptions best illustrates a typical intranet network structure used by
many school districts?
A) A worldwide connection of networks accessible from any location with Internet access
B) A private network that uses World Wide Web communication standards but is not connected to the
Web and is accessible only to on-site staff
C) A private network that utilizes WWW communication standards with specific parts accessible outside
the network
D) A network connection of computers with common print and file servers for sharing documents
Answer: B)
Rationale: An intranet is an internal network cut off from the World Wide Web that uses WWW
standards of communication. The Internet is a worldwide connection; an extranet allows outside access
to parts of the network .
Q3: Which of the following describes the primary function of a DNS server?
A) It provides resolution of host names to IP addresses
B) It provides security for a network with the use of control lists
C) It secures network traffic through shared key encryption
D) It secures client access through login and authentication
,Answer: A)
Rationale: The Domain Name System (DNS) is an Internet service that translates domain names
(alphabetic, easier to remember) into IP addresses. The Internet is based on IP addresses, so DNS
translates the name into the corresponding IP address .
Q4: A teacher instructs students on how to safely research information on the Internet, participate in
electronic discussions, follow accepted practices (e.g., netiquette), and use approved passwords. The
teacher primarily understands the importance of implementing which objective of information
literacy?
A) Students comprehend the legal and social implications of using information
B) Students use information effectively to accomplish a specific purpose
C) Students evaluate information and its sources critically
D) Students retrieve information effectively and efficiently
Answer: A)
Rationale: Netiquette refers to proper use of the Internet and falls under the economic, legal, and social
issues of uses of information. Rules and netiquette do not fall under accessing information, selecting
information, or using information to accomplish a specific purpose .
Q5: According to the ALA (American Library Association), what are three criteria to consider when
determining the reliability of a web site?
A) Design, Date, Domain
B) Communication, Content, Clarity
C) Authority, Audience, Accuracy
D) Objectivity, Overall Color, Originality
Answer: C) Authority, Audience, Accuracy
Rationale: The American Library Association recommends evaluating web sites based on authority (who
created the site), audience (who is the intended reader), and accuracy (is the information correct) .
Q6: While researching the origins of a community, a student discovers a conflict when comparing data
obtained from different sources. Which of the following sources is considered the most reliable?
A) An editorial commemorating the hundredth anniversary of the community's founding
B) Famous anecdotes in pamphlets distributed by the local chamber of commerce
C) Published letters written by one of the community's original settlers
D) A recent biography of the life of the individual credited with founding the community
Answer: C) Published letters written by one of the community's original settlers
Rationale: Letters from the time being researched qualify as primary sources and are considered most
reliable. Editorials, anecdotes, and recent biographies are secondary sources and therefore less reliable,
with possible bias .
Q7: As Brian researches his paper on gun control, he finds several internet sources. Which of the
following criteria should he disregard when determining the most reliable source?
,A) Who is the intended audience?
B) Does Brian agree with all the information provided?
C) Does the web site creator cite sources?
D) Does the web site have a known domain such as .gov, .org, .edu?
Answer: B) Does Brian agree with all the information provided?
Rationale: Personal agreement with the information is not a valid criterion for determining reliability.
The intended audience, citation of sources, and domain type are valid criteria for evaluating sources .
Section B: File Formats & Digital Media
Q8: Pixels are:
A) A type of file compression
B) The smallest element in a picture
C) A color mode
D) A network protocol
Answer: B) The smallest element in a picture
Rationale: Pixels (picture elements) are the smallest elements in a picture—small squares that make up
digital images. Resolution is the number of pixels in an image, measured by ppi (pixels per inch) .
Q9: Which of the following file formats is used for web pages, can display 16 million different colors,
but degrades each time it is saved?
A) GIF
B) PNG
C) JPEG
D) BMP
Answer: C) JPEG
Rationale: JPEG (Joint Photographic Experts Group) is used for web pages and can display 16 million
different colors. However, each time the file is saved, it compresses the image smaller, causing image
degradation. GIF uses 256 colors and PNG supports variable transparency .
Q10: A GIF logo displayed on an image-based background exhibits a halo effect. Changing the logo to a
PNG format will make it possible to adjust which characteristic to correct the problem?
A) Antialiasing
B) Opacity
C) Rasterization
D) Transparency
Answer: B) Opacity
, Rationale: PNG formats support variable transparency (alpha channels), which allows users to control
the degree to which an image is transparent. GIF files support transparency but do not support alpha
channels, so the transparency cannot be varied. PNG allows the logo to be properly layered over various
backgrounds .
Q11: A student inserts a bitmap image into a Web page. When the page is uploaded, the image looks
blocky and the quality is poor. Which of the following causes pixilation of this kind?
A) The image was saved at 48 bits instead of 16 bits
B) The student did not rasterize the image
C) The student did not compress the image
D) The image was saved at too low a resolution
Answer: D) The image was saved at too low a resolution
Rationale: Pixilation occurs when an image is displayed at a larger size than its resolution supports.
Higher resolution creates better images; more PPI (pixels per inch) means more memory is needed, but
lower resolution results in blocky, poor-quality images .
Q12: A student wishes to replace one scene in a video with another that will run longer. If the student
is using linear editing, which approach is uniquely required?
A) Adding transitions between the previous material and the new clip
B) Copying the longer clip onto the student's computer hard drive
C) Rebuilding the video from the edited clip to the end of the video
D) Using drag and drop to replace the original clip
Answer: C) Rebuilding the video from the edited clip to the end of the video
Rationale: In linear editing, the only way to fix the problem of a new clip covering up some of the next
scene on the tape is to rebuild the video from that edit to the end. Drag and drop is a feature of
nonlinear editing, not unique to linear editing .
Q13: For a multimedia production, students wish to import a graphic that fades from 100% opaque to
100% transparent. Which file format best supports this type of varying transparency?
A) GIF
B) JPEG
C) PNG
D) BMP
Answer: C) PNG
Rationale: PNG files support variable transparency (alpha channels), which allows users to control the
degree of transparency. GIF supports transparency but not alpha channels, so transparency cannot be
varied. JPEG does not support transparency .
Q14: A teacher is preparing a lesson to instruct students how to edit photographs for publication on
the Web and in print. Which principle should the teacher primarily emphasize?
