csp
convert the binary (base-2) number 1010 to decimal (base-10)
10
convert the decimal (base-10) number 20 to binary (base-2).
10100
your computer uses 4 bits to represents decimal numbers (0,1,2,3, and so on) in binary. what is the SMALLEST number for which an overflow can occur?
16
how many total numbers can be represented with an 8-bit binary (base-2) system?
256
an office uses an application to assign work to its staff members. the application uses a binary sequence to represent each of 100 staff members. what is the minimum number of bits needed to assign a unique bit sequence to each staff member?
7
which of the below actions would usually be helpful in designing and developing an app?
I, II, and III
internet protocol version 6 (IPv6) has been introduced to replace the previous version (IPv4). which of the following best describes a benefit of IPv6 over IPv4?
IPv6 allows for a greater number of addresses than IPv4, which allows more devices to be connected to the internet
which of the following best describes how computing devices represent data?
a computer represents data as bits which is either a 0 or a 1
a person wants to transmit an audio file from a device to a second device. which of the following scenarios best demonstrates the use of lossless compression of the original file?
a device compresses the audio file before transmitting it to a second device. the second device restores the compressed file to its original version before playing it
the diagram below shows a circuit composed of three logic gates. for which of the following input values will the circuit have an output of true
a=false, b=true, c=true, d=true
which of the following best explains how IP addresses are assigned?
as a new device is connected to the internet without an IP address, it is assigned an IP address to enable communication on the network
if the user does NOT click the button what color will topButton be when this program finishes running?
blue
what will the background color of the topButton be when the program is finished running?
blue
the figure below shows two possible network configurations. in which of the configurations is it possible to have redundant routing between devices Q and V?
both configuration I and configuration II
the following program is run. then the user clicks the bottomButton ONCE and then clicks the topButton ONCE. what will be displayed in the console?
chicken pig cow
which of the following is NOT a reason to include comments in programs?
comments help the computer decide whether certain components of a program are important
which of the following best describes the impact of creative commons?
creative commons gives creators of digital content the ability to indicate how their works can be legally used and distributed, enabling broad access to digital information
two devices are connected to the internet and communicating with one another. a squirrel chews through one of the wires in the network that is currently being used by the devices to communicate. the network immediately begins using a different path through the network and communication continues as normal. this situation best exemplifies which principle?
fault-tolerance
which of the following BEST describes the differences between sequential and event-driven programming?
in sequential programming commands run in the order they are written. in event-driven programming some commands run in response to user interactions or other events
which of the following is true of lossy and lossless compression algorithms?
lossy compression algorithms are typically better than lossless compression algorithms at reducing the number of bits needed to represent a piece of data AND lossless compression algorithms are only used to compress text data
in the program below, assume that the variable n has been initialized with an integer value. which of the following is NOT a possible value displayed by the program?
out of range
which of the following is not an advantage of using open source software?
the original developer of open source software provides free or low-cost support for users installing and running the software
in a certain computer program, two positive integers are added together, resulting in an overflow error. which of the following best explains why the error occurs?
the program can only use a fixed number of bits to represent integers; the computed sum is greater than the maximum representable value
which of the following best describes the protocol used on the internet?
the protocols of the internet are open and used by all devices connected to the network
a library system contains information for each book that was borrowed. each time a person borrows or returns a book from the library, the following information is recorded in a database. which of the following CANNOT be determined from the information collected by the system?
the total number of books that were never borrowed in a given year
which of the following best explains why it is not possible to use computers to solve every problem?
there exist some problems that cannot be solved using any algorithm
the transmission control protocol (TCP) and internet protocol (IP) are used in internet communication. which of the following best describes the purpose of these protocols?
to establish a common standard for sending messages between devices on the internet
which of the following internet protocols is MOST important in reassembling packets and requesting missing packets to form complete messages?
transmission control protocol (TCP)
in the network below, what is the minimum number of connections that must be broken or removed before device T can no longer communicate with device U?
two
a student purchases a single user license of a copyrighted application and wants other students to be able to use it at the same time. under which of the following conditions is it considered acceptable for the student to share the application?
when the student gets permission form the copyright owner of the application