Sound signals are digitized. Sampling is performed at Time 1 through Time 5 in the figure below, and four-level quantization is performed; in other words, the levels closest to the sampling point are selected. After that, two-bit encoding is performed. The result is “11 01 00 10 11”. When digitization is performed in the same way, which of the following figures represents the sound signal that results in “01 00 10 11 01”?
Which of the following is the logical operation that is equivalent to the truth table below?
Which of the following is a standard encoding system that is widely used for handling multilingual text and symbols around the world as a single character set?
When a chairperson and a secretary are selected from three (3) candidates with a method that allows dual roles, there are three (3) ways for the selection of a single chairperson and three (3) ways for the selection of a secretary, so in total, there are nine (9) combinations for the selection of a chairperson and a secretary. When a chairperson and a secretary are selected from five (5) candidates with a method that allows dual roles, how many combinations for the selection are there?
The function calGrade receives the student’s score and returns the grade. The score is an integer. If the score is greater than or equal to 80, the function calGrade returns “A”; if the score is between 65 and 79, it returns “B”; between 50 and 64, it returns “C”; and otherwise, it returns “Fail.” Which of the following is an appropriate piece of code to be inserted in blank in the program?
The procedure described below is sequentially performed for two (2) variables x and y, starting with step (1). When the procedure is completed, what is the resulting value of x?
There exist four (4) states numbered 1 through 4. The four (4) states are connected as shown in the figure below, and the state transition occurs in a clockwise or counter-clockwise direction.
If the current state is 1, which of the following is the state that is reached after the procedure below is performed twice?
[Procedure]
The number of the current state is multiplied by 11, and the result is divided by 3. The process below is performed based on the remainder of the division.
There is a device that stacks products from the bottom to the top, and removes the products sequentially from the top. There are only two (2) operations for this device.
Nothing is stacked at the start, and three (3) products arrive in the order A, B, then C. If only one (1) device is used, when the products are removed with POP operations, which of the following is an impossible order of removal?
The program performs circular left shifting on the array elements. For example, after circular left shifting, the initial array {1, 2, 3, 4, 5} becomes {2, 3, 4, 5, 1}. Which of the following is an appropriate combination of pieces of code to be inserted in A and B in the program?
Which of the following is the unique value that is sequentially assigned to a memory location in order to identify the location of instructions or data stored in the main memory of a computer?
Which of the following is an appropriate explanation of HDMI?
Which of the following is an appropriate explanation of GPU?
If a process from when a PC is powered on to when it becomes ready to use is divided into four (4) stages, which of the following is the stage that is performed first?
Which of the following is an appropriate description concerning the reliability of a system or a device?
Among the costs below concerning a sales management system, which of the following is the list that contains all costs that are included in TCO?
In a web service and other services, in order to increase reliability and process a large volume of accesses from users, which of the following is a technique that links multiple computers and makes them work as if they were a single computer?
In a file system with the hierarchy structure shown in the Figure, when “..\..\DIRB\Fn.txt” is specified from the directory marked with an * (the current directory), which of the following is the file that is referenced? Here, blank in the Figure show the directory name, and the reference method for a file is as below.
Which of the following is an appropriate description concerning OSS (Open Source Software)?
Which of the following is a term that means the validation of a software license by using the product ID and the user’s hardware information, in order to prevent unauthorized use of the software?
Sales data by month for each branch is evaluated. In the “Evaluation” field for each branch by month, if the amount of sales at the branch is below the average sales amount of branches A through C for the month, the symbol “X” is to be displayed, and if the amount is above or equal to the average, the symbol “O” is to be displayed. Which of the following is an appropriate expression to be entered in cell C3? Here, the expression that is entered in cell C3 is copied and used in cell D3, cell E3, cells C5 through E5, and cells C7 through E7.
Which of the following is an appropriate description about the function keys of a PC?
Which of the following is a technology that is also used in measures against tampering of software in IoT devices and verifies the digital signature of the OS, firmware, or other such software when it is started, and only executes the software if the verification is successful?
Which of the following is the appropriate description concerning a smart meter that is an IoT device?
Which of the following is the appropriate reason for using a style sheet in the creation of a website?
A technique that represents a figure with pixels is considered. In the case of Fig. 1, when each row of the figure of 3×3 pixels is read on a pixel-by-pixel basis from upper left to right and B and W are respectively written for black and white, the result is “BWBBBBBWB” (9 characters). Then, when a succession of n characters of “B”s or “W”s is represented as “Bn” or “Wn” respectively (where n is an integer of 2 or greater), Fig. 1 can be represented as “BWB5WB” (6 characters) and the compression ratio in this case is defined as 6/9 or 66.7%. When the figure of 5×5 pixels in Fig. 2 is represented by using the same technique, what is the compression ratio in percentage?
There are “Sales”, “Customer” and “Product” tables in a relational database. Among lists A through C, which of the following contains all and only the lists that can be created from the data in these tables? Here, a solid underlined part represents a primary key, and a dashed underlined column represents a foreign key.
In the description below concerning the design process of a relational database, which of the following is an appropriate combination of terms to be inserted into blanks A through C?
Analyze the target business operations, identify the data which is used there, and create B, consisting of entities and A. On the basis of the B created, design C.
Which of the following is an appropriate combination of relational database manipulations I through III and relational operations?
Which of the following is the appropriate explanation of commit in transaction processing?
When an e-mail is sent to multiple recipients, there are cases that no recipient of the e-mail should know the e-mail addresses of other recipients. In such cases, which of the following is an appropriate place where the e-mail addresses of the multiple recipients are entered?
Which of the following is not an appropriate description of online storage?
Which of the following is an example of damage incurred by the theft of cookies by a cross-site scripting attack or other attack?
When a web page with URL “http://srv01.itpec.org/abc.html” is accessed on the Internet, what does “srv01” in the URL stand for?
A large number of IP addresses are required in order to connect a massive number of IoT devices to the Internet, so the decision was made to use the Internet Protocol with IP addresses that have a length of 128 bits. Which of the following is this protocol?
Which of the following is a definition of a zero-day attack that is a threat to information security?
Which of the following is an appropriate action for the secure use of a smartphone?
Security risk treatment in ISMS includes risk transfer, risk avoidance, risk acceptance, and risk reduction. Which of the following is an example of risk avoidance?
Which of the following is an appropriate description of the beginning of a URL indicating that TLS is used for communication between a web browser and a web server?
Which of the following is a technique that is used to detect that the received data has been tampered with?
Among I through III below, which of the following lists all and only the appropriate measures for preventing a PC from getting infected with viruses?
Which of the following is an appropriate example of phishing?
Which of the following is an appropriate description concerning behavioral detection technology for protecting systems from unknown threats such as zero-day attacks?
Which of the following is appropriate as the characteristic of single sign-on?
Among the descriptions from A through C, which of the following is the list that contains all and only appropriate features of VPN?
When an attacker makes an unauthorized intrusion into a computer, the attacker sometimes changes a program or settings in the computer in order to make further intrusions into the computer easier. Which of the following is the most appropriate term to express the method used by the attacker for further intrusions into the computer?
In order to achieve a non-stop system, which of the following is an appropriate item to be considered during the design of the system architecture?
A detailed design document of software is created as an output of software detailed design. Which of the following is the person who takes charge of the next process of development upon receipt of this output?
Mr. A, a developer, is analyzing and verifying the internal structure of a program in order to determine whether input data is processed as intended. Which of the following is the test that Mr. A is currently conducting?
Among the descriptions A through D concerning software installation, which of the following lists all and only the appropriate descriptions?
Which of the following is the most appropriate term expressing initiatives to improve the services where the development side and the operations side of the system cooperate to proactively automate operations of the system and transition to the new production system, and release new functions?
Which of the following is an appropriate description concerning project scope management?
Which of the following is an appropriate description concerning the water fall model known as one of software development models?
Which of the following is an appropriate metrics for program quality in a software development project?
When the outsourced development project of a system has passed beyond its halfway mark, there is a request from the outsourcer for adding a function to the system. Which of the following is the most appropriate action of the project manager?
Which of the following is the appropriate explanation of a master schedule in a system development project where processes from requirements definition to installation are performed?
Which of the following is the appropriate description concerning WBS created in a project?
Company A orders the development of a system to Company B and starts a system development project. Among (i) through (iv) below who are concerned with the project, which of the following lists all and only the stakeholders of the project?
Which of the following is an appropriate description concerning the IT service management activity?
Which of the following activities aims at the maintenance and improvement of the service level through monitoring and reviewing the service status in order to implement the terms of agreement of an SLA?
Which of the following is an appropriate measure of facility management that maintains and protects facilities and equipment of information systems?
Which of the following is the most appropriate example concerning a chatbot that uses AI?
In order to improve the value of an IT service to be provided, it is necessary to consider the balance of three (3) items, namely the offer price of the service, the functions of the service, that is, what the service can offer, and a guarantee of the service with maintained availability. Which of the following is a description that corresponds to guarantee of the service of an instant messenger?
Which of the following is an appropriate description of the targets of a system audit?
Which of the following is the term for the assignment of employees’ role that applies mutual checks among employees for the purpose of reducing the risk of misconduct or errors in work from the standpoint of internal control?
The information system department implements the development and operation of the order entry system and the accounting system. The user of the order entry system is the sales department and the user of the accounting system is the accounting department. Which of the following is the appropriate description concerning internal control of financial reports?
Which of the following is the scope that the CFO, one of the positions involved in corporate management, bears responsibility for?
There are activities A, B, and C that use machines X and Y, and it is required in each activity that the machines are used in the sequence of machine X, machine Y. When the use times of machines X and Y in each activity are as shown in the table below, which of the following is the sequence of the activities where the total time required to complete the three (3) activities becomes minimum? Here, machines X and Y can be used in parallel as shown in the figure below, but two (2) or more tasks cannot be performed simultaneously with any machine and the sequence of activities must be the same for both machines.
Table Use times of machines X and Y in each activity
Figure Schedule of using the machines (Example of when activities are performed in the sequence A → B → C)
The table below is a part of the ingredients table of a steamed meat dumplings lunch box. How many grams of meat is necessary to prepare 100 steamed meat dumplings lunch boxes? Here, the steamed meat dumplings lunch boxes do not contain any dish that uses meat other than the steamed meat dumplings, and there is no loss of ingredients in the preparing process.
Which of the following represents the “E” in ROE that is an index for the measurement of a company’s profitability?
Which of the following is the most appropriate terminology for referring to a method that uses AI, IoT, and other such IT for personnel-related work such as personnel evaluations and recruitment with aims including the improvement of a company’s personnel functions and achieving reform in working styles?
Which of the following is most appropriate as the person with responsibility for an information systems strategy that is created on the basis of a business strategy?
Which of the following is an index that indicates the efficiency of capital utilization?
Which of the following is an example of a Non-Disclosure Agreement (NDA)?
From the viewpoint of corporate governance, which of the following is the most appropriate method of strengthening the functions of monitoring and supervising the decision-making process of the management?
Which of the following is an international standard for environmental management systems developed by ISO?
Which of the following examples of the sending of e-mail is inappropriate from the standpoint of the protection of personal information?
Which of the following is the most appropriate as an example of an enhancement activity for compliance?
Which of the following is the appropriate description concerning an international organization for standardization?
In product portfolio management, where products and business to be analyzed are classified into cash cows, stars, dogs, and question marks, which of the following is the appropriate combination of indexes used in the vertical axis and horizontal axis?
In Company X, the experience and know-how of employees who have managed drainage treatment in the facility over a long period of time is documented and accumulated, and the accumulated experience and know-how is utilized on daily drainage treatment activities and design of new processing equipment. Which of the following is appropriate as a concept of this example?
Which of the following information is necessary for CRM?
Which of the following is a technique that analyzes the value of a product or service through the relationship between functionality and cost, and enhances that value through reduction in cost and increase in functionality and quality?
Which of the following is the appropriate explanation of benchmarking used for corporate management?
With the purpose of increasing the number of contracts concluded, salespersons in Company A’s sales department began an activity to make proposals for plans to customers. A key goal indicator (KGI) and key performance indicator (KPI) are to be set as indexes for achievement of sales activities. Which of the following is the most appropriate combination of KGI and KPI in this activity?
Which of the following is an appropriate description of a “patent portfolio” that is important for establishing the patent strategy?
Which of the following is the situation where an improvement can be expected by installing an MRP (Material Requirements Planning) system?
Which of the following is an appropriate explanation of a banner advertisement that is a form of Internet advertisement?
A company wishes to create digital files from paper documents and paper blueprints, and make these available company-wide. Which of the following is appropriate equipment to be used?
Which of the following is an appropriate explanation of CAD?
Which of the following is the most appropriate example of a use of a wearable device?
An EC site handles a wide range of user inquiries via chat with a mechanism where operators provide a response. It decides to use a new mechanism where software learns from the content of users’ past chats, infers an appropriate response from the flow of the conversation and provides an automatic response. Which of the following is the most appropriate technology that is used in the new mechanism?
Which of the following is the most appropriate term to express the initiatives that are implemented by a financial institution or other such institution in order to prevent acts where funds obtained illegally are disguised as being obtained by legitimate means?
Which of the following is an appropriate description concerning groupware?
Which of the following is a modeling technique that is used for analyzing business operations and system from the viewpoint of the flow of data which is exchanged between processes?
Training on how to use a sales forecast system is planned for the persons in charge of business across the country. Which of the following is a merit that is obtained by using e-learning in training?
Attempts are being made to streamline the functions and services of cities and regions and make them more advanced with the use of ICT in order to solve regional problems, and vitalize regions. Which of the following is the most appropriate term to describe such a solution for community development?
In system development, which of the following is a process that clarifies the business functions to be newly constructed or reconstructed, and on the basis of the business functions, specifies the scope of computerization and the functions?
Which of the following is the most appropriate description of IoT?
Which of the following is the most appropriate word to indicate the use of IoT, AI, and other IT in order to strategically overhaul a business model and produce new added value?
Which of the following is the most appropriate explanation of an RFP that is created by a company, government organization, or other such organization that is planning the introduction of a new system?
