Which of the following is a Venn diagram that represents the set below?
(A ∩ C) ∪ (A ∩ B ∩ C) ∪ (A ∩ B ∩ C)
When the hexadecimal value ABCD in a 32-bit register is logically shifted right by two bits, which of the following is the resulting value in hexadecimal?
What is the probability that at least three coins land heads up when four unbiased coins are tossed simultaneously?
Random(n) is a function that returns an integer of 0 or more and less than n with a uniform probability. When the series of procedures below is run on the integer type variables A, B, and C, what is the probability that the value of C will be 0?
A = Random(10)
B = Random(10)
C = A−B
Which of the following matches the <variable-name> defined below in BNF?
<number> :: = 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
<letter> :: = A | B | C | D | E | F
<letter-and-number> :: = <letter> | <number> | _
<variable-name> :: = <letter> | <variable-name><letter-and-number>
Which of the following is an error detection method where, on the sender side, the data sent accompanies a remainder of the data bit sequence divided by a specific generator polynomial, while on the receiver side, error detection is performed by checking if the received bit sequence is divisible by the same polynomial?
Which of the following is the pre-order traversal of the tree below?
The operations for a queue are defined as below.
On an empty queue, the operations ENQ 1, ENQ 2, ENQ 3, DEQ, ENQ 4, ENQ 5, DEQ, ENQ 6, DEQ, DEQ are performed. After that, when DEQ is performed, what is the value that is removed?
A five-digit number a1a2a3a4a5 needs to be stored in an array by means of hashing. When the hash function is mod (a1+a2+a3+a4+a5, 13) and the number is stored in the array element at the position corresponding to the calculated hash value, which of the following is the position where 54321 is stored in the array? Here, the value of mod (x, 13) is the remainder after dividing x by 13.
Which of the following is a program that achieves dynamic processing in a web environment and operates only on a web server?
When a CPU has a special register used in push and pop instructions, which of the following is an appropriate term for this register?
Which of the following is classified as an internal interrupt?
Which of the following is the technique that minimizes the number of write operations to the main memory by updating the data only in the cache memory and updating into the main memory later?
Which of the following is an appropriate description of a 3D printer’s function?
Which of the following is the RAID configuration for achieving the highest speed disk access at the cost of reliability?
When system availabilities of a cold standby system, a simplex system, and a dual system are compared, which of the following shows the order arranged from highest to lowest? Here a computer or computers that compose each system are all the same.
A printer prints 400 characters per second. The printer uses interrupt-driven I/O and each character printed requires an interrupt that takes 50 microseconds. What percentage of the printer's CPU is available to do other work during printing? Here, other overhead time for the CPU can be ignored.
In preemptive Shortest Remaining Time First (SRTF) scheduling, on arrival or completion of any process, the scheduler schedules processes from the list of available processes and running processes that have the least remaining CPU-burst time. The four processes, namely, P1, P2, P3, and P4, their corresponding CPU-burst time and arrival time are shown in the table below. Which of the following is the average waiting time in milliseconds for the processes to be executed in preemptive SRTF scheduling?
Among the different types of backup methods, which of the following is incremental backup? Here, in the first backup, all files are backed up and the information that indicates a file update managed by the operating system is reset.
Which of the following is the logic circuit that is equivalent to the logical expression ABC + AC?
Which of the following is the logic gate that is equivalent to the logic circuit shown below?
At the rising edge of the clock signal, the content of an 8-bit serial-in parallel-out shift register is shifted upward, while positive logic data is simultaneously read into the least significant bit. The value is fixed at the rising edge of a strobe. When the results of an observation of each signal’s waveform are as shown in the diagram below, which of the following is the value of the shift register after it is fixed? Here, numeric values are represented in hexadecimal.
Which of the following is a case where outline fonts rather than bitmap fonts are suitable for use?
What is the approximate minimum required bandwidth for delivering a 30-frames/second video in 800 x 600 pixel and 24-bit full color? Here, the data is not compressed during communication.
Which of the following is an appropriate explanation of a relational database?
Which of the following is the key of a relation schema R = (M, N, O, P, S, T), when R has the functional dependencies shown below?
O → T
S → M
OS → P
M → N
Which of the following is an appropriate description of keys in a relational database?
Which of the following is the appropriate interpretation of the conceptual data model shown in the diagram in UML?
An employees table contains fields in the order shown below.
Which of the following is an appropriate INSERT statement to insert the data to the table? Here, NOT NULL constraint does not exist and the table does not have any records before the insert.
Which of the following is the purpose of setting an index in the columns of the table of a relational database by a user?
Which of the following is a role of DNS in a TCP/IP network?
In the same subnet, which of the following is the devices that will receive the data when the destination address is set to 255.255.255.255?
How many host addresses are there in the network 192.168.10.0/26?
In a TCP/IP network, which of the following is a protocol used to match the clocks of the server and the client?
As for the use of e-mails over the Internet, which of the following is a standard that extends the header field and can handle not only text but also audio and images?
Which of the following is malware that is activated by attackers to launch attacks on other computers?
Which of the following is considered a violation of confidentiality?
Which of the following is an appropriate description of “asymmetric encryption,” used for encrypting and decrypting messages for secure communication?
Which of the following is a method of social engineering used in a targeted e-mail attack?
In information security, which of the following is a back door?
An asset valued at $200,000 has an exposure factor of 20% and an annual rate of occurrence of 0.5 for the risk of malware infection. How much (in dollars) is the annual loss expectancy of the asset due to malware infection?
Which of the following is a security measure that allows users to run potentially malicious programs on a system with the purpose of observing their behavior, while restricting the programs from accessing outside of the system?
A packet filtering firewall is installed at the connection point of an internal network and the Internet. Which of the following is the appropriate combination of filtering rules that enables PCs on the internal network to access a web server on the Internet (port number 80)?
When a sender from domain A sends an e-mail to a recipient in domain B, which of the following is used by the mail server in domain A for authenticating the sender?
The diagram below is an example of a DFD that is used in the structured analysis method. Which of the following is represented by a “◯” in the diagram below?
Among the definitions of software quality characteristics, which of the following characteristics refers to the ease of modifying a program for a certain computer so that it can run on a different architecture?
In the error embedding method, when the number of embedded errors is S, the number of discovered errors from the embedded errors is m, the number of latent errors before the start of testing not including embedded errors is T, and the total number of discovered errors is n, which of the following expresses the relationship of S, T, m, and n?
Which of the following is an appropriate test case when a test is to be performed with decision condition coverage (branch coverage) on the section of a program shown in the figure below?
Which of the following is the appropriate term for referring to activities such as creating a class diagram in UML from a program?
As for software development activities, which of the following is refactoring?
Which of the following is an appropriate description of the stakeholders involved in a project?
In project management, which of the following is the subject group that includes processes having Purpose 1 and those having Purpose 2?
A project was planned to be completed in six months. After six months, the project is behind schedule. The actual cost of Activity A is $100,000. The planned value of Activity A is $80,000. Activity A is only 75% complete. What is the schedule performance index and cost performance index of the project?
Which of the following is an appropriate explanation of the Function Point method for creating an estimate for software development?
When an IT service is discontinued, it is important to comprehensively identify the assets that were used and appropriately remove or free surplus assets. Which of the following is an event that may occur due to mistaken removal of assets that should remain, but does not occur because of the removal of assets that should be removed?
As for activities in capacity management to estimate a service’s capacity, capability, and performance, which of the following is trend analysis?
Which of the following is an appropriate description concerning system operation?
In the system design phase, when an audit is performed on the control to reduce the risk of user requirements not being met, which of the following is a point to be checked?
When an information system department enters data sheets issued by a business operations department, which of the following is an appropriate task executed by the information system department?
Which of the following is an example of RPA that is used to proceed with business innovation with the aim of resolving management issues, such as a shortage of staff members?
Which of the following is a system where the use of a state transition diagram is appropriate when the system is designed?
Which of the following is an explanation of the digital divide?
Procurement is performed by using the comprehensive evaluation bidding method under the conditions shown below. When the bidding prices and technology points of Companies A to D are as shown in the table below, which of the following is the successful bidder?
[Conditions]
[Bidding price and technology points of Companies A to D]
Which of the following is an explanation of green procurement (sustainable procurement)?
Among the mechanisms that are utilized on the Internet, which of the following is an explanation of crowdfunding?
Which of the following is a characteristic of the maturity stage in the product life cycle?
Which of the following is mostly tacit knowledge?
Which of the following is an appropriate example of a core technology for the creation of competitive advantage?
A product that is produced through four (4) processes of A, B, C, and D must be produced in a quantity of 1,000 units per month. The table below lists the manufacturing time per unit, number of machines owned, and monthly production capacity in hours per machine for each process. Which of the following is a process that is lacking in capability?
Which of the following is an explanation of cryptocurrency mining that is enabled by block chain?
Which of the following is an explanation of a sharing economy?
Which of the following is an appropriate explanation of digital signage?
Which of the following is an appropriate description of the constituent elements of IoT?
Which of the following is a characteristic of OJT?
To secure transparency in business administration, which of the following is a concept that supervises and monitors a company's activities from the perspective of questions such as for whom the company runs its business, how top management is structured, and whether the organization has self-improvement capabilities?
Which of the following is a description of the ABC analysis?
There are several quality control tools that are used primarily for manufacturing and inspection departments. Which of the following is a graph where appropriate units or attributes for the data are set on the vertical and horizontal axes correspondingly and measured values are plotted accordingly?
A company plans to provide a product with a fixed cost of $128,000, a variable cost per unit of $48, and a selling price per unit of $80. Which of the following is the point of sales (in dollars) to become break-even?
In developing new products that are expected to be employed by government agencies of WTO member countries, which of the following are the appropriate standards to be applied?