AP CSP Final Exam
Eight bits is enough to symbolize 256 different numbers. How many general bits do you
need to represent 512 (two times as many) numbers? - ANS-nine bits
A bakery collects facts on sales. Each sales document consists of the date of the sale and a
few metadata about the items that were part of the sale. The data consists of: the names of
the gadgets sold, the kinds of objects offered, the wide variety of every item offered, and the
rate of each item bought. Which of the following CANNOT be decided from the bakery's
records set? - ANS-Which customer most regularly purchases bread.
A certain social media Web website lets in users to put up messages and to touch upon
different messages that have been published. When a consumer posts a message, the
message itself is considered facts. In addition to the data, the website shops the subsequent
meta statistics.
The time the message changed into published
The call of the person who published the message
The names of any users who touch upon the message and the instances the feedback had
been made
For which of the subsequent desires would it not be greater useful to analyze the records
rather than the metadata? - ANS-To determine the topics that many customers are posting
about
A compression scheme for lengthy strings of bits known as run-length encoding is described
as follows:
Rather than file each zero and 1 in my opinion, instead record "runs" of bits through storing
the quantity of consecutive 1s and 0s that appear.
Since it's binary, any run of 0s have to be accompanied by way of a run of 1s (even though
the run is most effective 1-bit lengthy) and vice versa. Thus, you may keep a list of small
numbers that represents the alternating runs of 0s and 1s. Here is an example:
(See Code.Org Unit 2 Chapter 1 Assessment Question 7)
To uncompress the statistics lower back into its unique binary kingdom, you surely reverse
the manner. This approach is an example of what kind of compression? - ANS-Lossless
compression
A center college is expanding to open a excessive college next yr, doubling the overall
number of college students. The school continues a database in which each scholar's
specific ID quantity is stored as an 8 bit variety referred to as studentID. Before the arrival of
the brand new students nearly each eight bit variety has already been assigned to a student.
Of the alternatives supplied beneath, that is the smallest alternate to the way studentID is
represented vital to make certain every incoming pupil receives a completely unique ID? -
ANS-Add a bit to studentID to double the range of IDs that the database can constitute.
, A programmer is writing a device that is meant with a view to save huge quantities of private
information. As the programmer develops the records gadget, which of the following is
LEAST likely to effect the programmer's choices in designing the structure of the device? -
ANS-The frequency of a particular object happening in a statistics set.
A uncooked digital sound document samples a legitimate wave at some interval and
measures the height of the wave at every factor. Thus, uncooked sound is recorded as a list
of numbers.
In very broad terms the MP3 audio compression set of rules identifies frequencies and
extent tiers - low and excessive - which are outside the variety of human listening to and
removes the data representing those frequencies from the original. This method effects in a
smaller audio report that sounds precisely the identical to the human ear.
This technique is an instance of what kind of compression? - ANS-Lossy compression
A school starts offevolved monitoring which web sites each pc inside the school is visiting by
means of monitoring the packets leaving the college. A sample of the data they have got
amassed appears under:
IP Address Time URL
... ... ...
1.1.1.1 eleven:05:23.22 instance.Com
1.5.1.Eight 11:05:29.Seventy one news.Com
1.1.5.1 11:06:thirteen.Forty eight sports activities.Com
1.Five.1.8 11:08:09.Ninety five example.Com
... ... ...
1.1.5.1 17:04:29.20 news.Com
Which of the subsequent is MOST in all likelihood to be answerable the use of all the
information accumulated by means of this monitoring? - ANS-Which web sites are maximum
regularly visited before and after faculty hours from a school laptop
A consumer clicks on a website, and it begins to load at once, however it takes a long term
to load absolutely and pix appear slowly, separately. Which of the following is established
thru this case? - ANS-Low bandwidth, low latency
A video-streaming Web web page makes use of 32-bit integers to remember the wide variety
of instances each video has been played. In anticipation of some videos being played more
instances than can be represented with 32 bits, the Web web page is planning to change to
sixty four-bit integers for the counter. Which of the subsequent quality describes the end
result of the use of sixty four-bit integers instead of 32-bit integers? - ANS-2^32 times as
many values can be represented.
According to the domain call device (DNS), which of the subsequent is a subdomain of the
area example.Com? - ANS-approximately.Instance.Com
An artist makes an RGB raster photo in which each pixel color is encoded with 12-bits ---
four bits each for crimson, green and blue.
Which of the following efficaciously indicates the hexadecimal value for Red as a 12-bit
representation. - ANS-F00
Approximately how a good deal bigger (what number of greater bytes) is a megabyte than a
kilobyte? - ANS-1,000 times larger
Eight bits is enough to symbolize 256 different numbers. How many general bits do you
need to represent 512 (two times as many) numbers? - ANS-nine bits
A bakery collects facts on sales. Each sales document consists of the date of the sale and a
few metadata about the items that were part of the sale. The data consists of: the names of
the gadgets sold, the kinds of objects offered, the wide variety of every item offered, and the
rate of each item bought. Which of the following CANNOT be decided from the bakery's
records set? - ANS-Which customer most regularly purchases bread.
A certain social media Web website lets in users to put up messages and to touch upon
different messages that have been published. When a consumer posts a message, the
message itself is considered facts. In addition to the data, the website shops the subsequent
meta statistics.
The time the message changed into published
The call of the person who published the message
The names of any users who touch upon the message and the instances the feedback had
been made
For which of the subsequent desires would it not be greater useful to analyze the records
rather than the metadata? - ANS-To determine the topics that many customers are posting
about
A compression scheme for lengthy strings of bits known as run-length encoding is described
as follows:
Rather than file each zero and 1 in my opinion, instead record "runs" of bits through storing
the quantity of consecutive 1s and 0s that appear.
Since it's binary, any run of 0s have to be accompanied by way of a run of 1s (even though
the run is most effective 1-bit lengthy) and vice versa. Thus, you may keep a list of small
numbers that represents the alternating runs of 0s and 1s. Here is an example:
(See Code.Org Unit 2 Chapter 1 Assessment Question 7)
To uncompress the statistics lower back into its unique binary kingdom, you surely reverse
the manner. This approach is an example of what kind of compression? - ANS-Lossless
compression
A center college is expanding to open a excessive college next yr, doubling the overall
number of college students. The school continues a database in which each scholar's
specific ID quantity is stored as an 8 bit variety referred to as studentID. Before the arrival of
the brand new students nearly each eight bit variety has already been assigned to a student.
Of the alternatives supplied beneath, that is the smallest alternate to the way studentID is
represented vital to make certain every incoming pupil receives a completely unique ID? -
ANS-Add a bit to studentID to double the range of IDs that the database can constitute.
, A programmer is writing a device that is meant with a view to save huge quantities of private
information. As the programmer develops the records gadget, which of the following is
LEAST likely to effect the programmer's choices in designing the structure of the device? -
ANS-The frequency of a particular object happening in a statistics set.
A uncooked digital sound document samples a legitimate wave at some interval and
measures the height of the wave at every factor. Thus, uncooked sound is recorded as a list
of numbers.
In very broad terms the MP3 audio compression set of rules identifies frequencies and
extent tiers - low and excessive - which are outside the variety of human listening to and
removes the data representing those frequencies from the original. This method effects in a
smaller audio report that sounds precisely the identical to the human ear.
This technique is an instance of what kind of compression? - ANS-Lossy compression
A school starts offevolved monitoring which web sites each pc inside the school is visiting by
means of monitoring the packets leaving the college. A sample of the data they have got
amassed appears under:
IP Address Time URL
... ... ...
1.1.1.1 eleven:05:23.22 instance.Com
1.5.1.Eight 11:05:29.Seventy one news.Com
1.1.5.1 11:06:thirteen.Forty eight sports activities.Com
1.Five.1.8 11:08:09.Ninety five example.Com
... ... ...
1.1.5.1 17:04:29.20 news.Com
Which of the subsequent is MOST in all likelihood to be answerable the use of all the
information accumulated by means of this monitoring? - ANS-Which web sites are maximum
regularly visited before and after faculty hours from a school laptop
A consumer clicks on a website, and it begins to load at once, however it takes a long term
to load absolutely and pix appear slowly, separately. Which of the following is established
thru this case? - ANS-Low bandwidth, low latency
A video-streaming Web web page makes use of 32-bit integers to remember the wide variety
of instances each video has been played. In anticipation of some videos being played more
instances than can be represented with 32 bits, the Web web page is planning to change to
sixty four-bit integers for the counter. Which of the subsequent quality describes the end
result of the use of sixty four-bit integers instead of 32-bit integers? - ANS-2^32 times as
many values can be represented.
According to the domain call device (DNS), which of the subsequent is a subdomain of the
area example.Com? - ANS-approximately.Instance.Com
An artist makes an RGB raster photo in which each pixel color is encoded with 12-bits ---
four bits each for crimson, green and blue.
Which of the following efficaciously indicates the hexadecimal value for Red as a 12-bit
representation. - ANS-F00
Approximately how a good deal bigger (what number of greater bytes) is a megabyte than a
kilobyte? - ANS-1,000 times larger
