In a school class, 13 students play basketball and 19 play football. Among them, 8 students play both. Further, 7 students play neither. How many students are there in the class?
n is a binary integer represented in two’s complement. Which of the following operations get the value 7 × n using only bit shifting and an addition or subtraction operation?
A parking lot has 10 parking spaces in a row, and 7 cars are parked at random parking spaces. What is the probability that the three empty places are adjacent to each other?
What is the sum of two binary fractions 1.0101 and 1.0111 expressed in decimal form?
Which of the following expressions in postfix notation is equivalent to the expression 2+5×3+4 in infix notation? Here, the operator “×” has higher precedence than “+”.
There is communication data that consists of five characters “A”, “B”, “C”, “D”, and “E” that have different appearance frequencies, and in order to compress the data by using Huffman coding, the code table shown below is created. Which of the following is an appropriate code that should be inserted in the blank?
When the series of stack operations below is performed on an empty stack, which of the following is the data that is read out by the last READ operation? Here, “PUSH x” is the operation to put data x in the stack, “POP” is used to retrieve data from the stack, and “READ” is used to read data from the top of the stack without removing the original data.
PUSH 2 → READ → PUSH 3 → PUSH 6 → POP → READ → PUSH 4
→READ → PUSH 7 → PUSH 5→ POP → POP → READ
In the binary search tree below, when a new node of value 11 is inserted, where will this insertion be made?
In the table below, there are five items A through E. Each item cannot be divided into smaller pieces. When a knapsack with a maximum volume of 7 units is used for carrying the items, which of the following is a set of items to be packed in the knapsack so that the total price can be maximized?
Which of the following is an appropriate description concerning XML?
In a CPU, which of the following is a special register that contains the address of the next instruction to be fetched?
Which of the following is an appropriate CPU operation associated with cache memory?
Which of the following is a computer architecture in which a processor executes the same instruction on multiple data?
ECC is used for error detection and correction in memory. When n+2 redundant bits are required for a data bus having a width of 2n bits, what is the number of redundant bits that are required for a data bus having a width of 128 bits?
Which of the following is the most appropriate explanation of grid computing?
Which of the following is an RAID configuration that deploys two parity records to different disk drives enabling two simultaneous disk drive failures in the same RAID group to be recovered?
Which of the following occurs when a program attempts to access a page that is mapped in the virtual address space but is not located in the main memory? Here, the OS supports paging.
Which of the following is an appropriate description concerning the round robin process scheduling method?
Which of the following is an explanation of the function of an archiver that is one of the data management utilities?
Which of the following is a sequential circuit that has two stable states?
Which of the following is equivalent to the logic circuit shown below?
A power supply unit has a rated output power of 500 watts and an efficiency of 80%. In order to obtain an output power of 500 watts from this power supply unit, how many watts is the minimum input power?
When an order data in the format shown below is entered, which of the following is a data validation method that is performed to determine whether the order date is a business day and whether the date is on or before the date of data entry or after the date of data entry?
Order data
Which of the following is a process in PCM to capture analog values from audio signals at a regular interval?
In a DBMS, which of the following is a function that decides the schema?
Which of the following is an appropriate method used to remove data redundancy in relational database systems?
Which of the following is the most appropriate description concerning the primary role of an SQL query optimizer?
From a “Score” table, the average score for all subjects is to be calculated for each student, and the student number and average score for students with an average score of 80 or higher are to be determined. Which of the following is the appropriate term or phrase to be entered in blank A? Here, a solid underline represents a primary key.
Score (StudentNumber, Subject, Score)
Which of the following is a file in which values before and after an update of the database are written and saved as the update history of the database?
Which of the following is the most appropriate information for a router to determine the destination of an incoming packet?
Which of the following is a feature of a switching hub (layer 2 switch) network device?
When a PC connected to a LAN is starting up, which of the following protocols is used to automatically assign an IP address to the PC?
In telecommunication, which of the following is a standard for wireless broadband communication for mobile devices and data terminals?
Which of the following is a multicast IPv4 address?
Which of the following is a method for embedding a malicious java script code in the content sent to a victim’s web browser from a vulnerable website?
Mr. A encrypts a message to be sent to Mr. B using an asymmetric key encryption method so that only Mr. B can decrypt the message. Which of the following is(are) the private key(s) used to decrypt the message?
Which of the following is an attack using a trial-and-error method to obtain confidential information such as a user password or personal identification number (PIN)?
When information, such as an e-mail or a document file, is sent and received with a digital signature via the Internet, which of the following is an appropriate combination of security properties that ensure that such information is from the signer and has not been altered or tampered with during transmission?
Which of the following is an example of a behavior of a key logger?
Which of the following is a role of a PKI certification authority as a reliable third party?
As shown in the figure below, an application on a client accesses the data in the database on a server via database connection programs. Which of the following is a measure for preventing the leakage of the commands and execution results transmitted between the application and database?
Companies usually provide a means for their mobile workforce to access the corporate network securely over the Internet through insecure channels such as open wireless networks in hotels or coffee shops. Which of the following is the appropriate technology that can be used for this purpose?
Which of the following is a technique that attempts to intrude into the system in order to detect security-related vulnerabilities of the computer or network?
Which of the following is a key that the SSL/TLS certificate of a website contains?
Which of the following is a description concerning a decision table that is one of the design techniques used in system development?
The integration test for software composed of modules arranged in a hierarchical structure is performed from a high-level module. In such a case, which of the following is a test module that is used as a substitute for a low-level module?
Which of the following is the most appropriate feature of polymorphism in object-oriented programming?
Which of the following is approved by the customer when the external design of a system is completed?
Which of the following is an appropriate description of an extreme programming (XP) practice?
Which of the following is a method that uses a modeling tool to create a design document described with E-R diagrams or other representations from the definition information in an active database?
The ten members of a project team hold meetings with each other with the conditions below. If two (2) members are to be added to the team, how many additional meetings will be held compared to if there were ten members?
[Conditions]
In order to determine the quality condition in a test process, it is necessary to analyze and evaluate the relationship between the number of completed test items and the cumulative number of bugs. Which of the following is a graph that indicates that the quality is becoming stable?
When the number of programs composing the system and the number of person-days required for coding per program are as shown in the table below, what is the minimum number of staff members required to develop the system in 95 days? Here, in addition to coding, the activities of design and testing are also necessary to develop the system, and those activities require eight times as many person-days as coding.
Which of the following is a critical path of the project activities shown in the arrow diagram below?
Which of the following is an appropriate policy for creating an SLA?
Which of the following is the most appropriate characteristic of the “big bang” or all-at-once migration method that is one of the system migration methods?
In IT service management, which of the following is a problem management activity that is performed proactively?
Which of the following is a method that restores the system to its initial state and restarts it when a system failure occurs, that does not accompany preprocessing of a copy before/after an update, and that is also called initial program load?
Which of the following is an explanation of an audit work paper?
Which of the following is an appropriate description concerning a system audit team?
The purchase of two types of IT devices A and B is being examined. The payout period is set in consideration of the useful life of each of the devices. Which of the following is an appropriate description for the minimum amount of annual profit necessary to recover the amount of investment within the set payout period for A and B? Here, the annual profit is made evenly each year, and the interest rate is not considered.
Which of the following is a purpose of Business Process Management (BPM) in corporate activities?
Which of the following is a scheme where the user establishes a connection to the system of a service provider via the Internet and makes online use of only the necessary functions of the applications provided by the service provider at the necessary time?
Which of the following is an appropriate example of utilizing Business Intelligence (BI)?
The RFP is presented to each vendor that has responded to an RFI. Which of the following should be done beforehand to proceed fairly with the future vendor selection processes?
A company has products that are at the peak of profitability and sales. As a result, many competitors develop similar products to the market. Therefore, a company must develop new products to meet new demands and market opportunities. Which of the following is a state of such events in the product life cycle?
Which of the following is an explanation of benchmarking that is used for corporate management?
Which of the following is a business management technique that is used to develop specific targets and measures to implement a planned strategy, in consideration of the appropriate mutual relationships among four perspectives (i.e., financial, customer, business process, and learning and growth)?
Which of the following is the purpose of SCM?
Which of the following is an explanation of the IoT (Internet of Things)?
Which of the following is an explanation of a smart grid?
Which of the following is an explanation of CAD?
Which of the following is an explanation of an e-marketplace?
Which of the following is a characteristic of an IC tag (RFID)?
Which of the following is an officer whose primary responsibility is the security of a company’s information and data?
Which of the following is a method of education and training in which trainees engage in simulated business activities, interact with other people to develop experiences, and try out different strategies?
When the weather tomorrow is sunny with 30% probability, cloudy with 50% probability, and rainy with 20% probability, which of the following strategies offers the highest expected value?
(Unit: Value)
The following inventory statement of Build-Up Property Company describes the status of the company’s inventory since the beginning of the year 2014. When the company uses a first-in-first-out (FIFO) method for inventory asset valuation, what is the inventory value at the end of the year 2014?
Which of the following is the type of financial statement that shows a company’s assets, liabilities, and shareholders’ equity at a particular point of time?
When a single-license software package is purchased by a company, which of the following is an activity that is usually permitted in conformity with the concept of the WTO’s Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS)?