テクノロジ系 / Technology

Which of the following is always true for two (2) sets A and B? Here, (X ∩ Y) represents the set that contains only the elements that are in both X and Y (intersection set), and (X ∪ Y) represents the set that contains all of the elements that are in at least one of X or Y (union set).

Which of the following is the binary number that is obtained by adding the binary numbers 01011010 and 01101011? Here, the binary numbers are expressed as positive 8-bit values.

Which of the following is the combination of the mean and median of the data? [Data] 10, 20, 20, 20, 40, 50, 100, 440, 2000

Which of the following is the appropriate description concerning the prefix of the International System of Units (SI) that is used to indicate CPU clock frequency, communication speed, and other such things?

There is a desk that can hold at most four (4) files. On this desk, six (6) files A through F are used for a job. When the fifth file needs to be put on the desk, the file with the longest time since the last use among the four (4) will be put in a drawer. If the files are put on the desk and referenced in order of A, B, C, D, E, C, B, D, F, B, which of the following is the last file to be put in the drawer?

At a certain company, employees get a medical allowance equal to 5% of their monthly base salary in addition to their monthly base salary. If the total of the monthly base salary and medical allowance is more than 5,000, a 20% tax is deducted from the total. In the program below, the function calculateTotalSal receives the monthly base salary as an argument and returns the monthly total salary after tax deduction. Which of the following is the correct combination of pieces of code to be inserted into [A] and [B] in the program? Here, the monthly base salary is a multiple of 100. [Program] O integer: calculateTotalSal(integer: monthlyBaseSal) integer: monthlyTotalSal monthlyTotalSal <- integer part of (monthlyBaseSal x 1.05) if (monthlyTotalSal > [A]) monthlyTotalSal <- integer part of (monthlyTotalSal x [B]) endif return monthlyTotalSal

Which of the following is the appropriate way for extracting data from a stack that stores multiple data?

In the program below, the function subTotal receives an integer array inputarr as an argument, returns an array arr in which the sum of all elements of original array inputarr up to that location is stored in the same location. Which of the following is the correct combination of pieces of code to be inserted into [A] and [B] in the program? Here, the size of the array inputarr is greater than 1, elements outside the bounds of the array must not be accessed, and the array index starts at 1. [Program] O integer []:subTotal(integer []: inputarr) integer: i integer: n <- the number of elements in inputarr integer []: arr <- {0, ..., 0} // Number of elements is n. arr[1] <- inputarr[1] for (increase i from [A] to n by 1) arr[i] <- inputarr[i] + [B] endfor return arr

Which of the following is the explanation of a characteristic of hypertext?

Which of the following is designed to virtually reduce the time for the CPU to access the main memory, in order to improve the processing efficiency of a PC?

Which of the following is the most appropriate description concerning a compatible CPU?

In the description below concerning the connection between a PC and a peripheral device, which of the following is the appropriate combination of words to be inserted into blanks A and B? The connection of a new peripheral device to a PC requires (a) [A], but if a peripheral device that supports [B] function is connected, the [A] is installed automatically and the device can be used.

There is an IoT system that automatically opens and closes the water gate for a rice field by measuring the water level in the rice field. Which of the following is the appropriate combination of terms to be inserted into blanks A and B in the figure?

The system configurations A through C are made up by connecting multiple identical devices. Which of the following is the list where A through C are sorted in descending order of availability? Here, the parallel connection requires only one (1) of the devices to be functional, while the series connection requires all devices to be functional. A: Two devices connected in series. B: One device in series, followed by two devices in parallel. C: Three devices all connected in parallel.

When the processing speed of the system overall is constrained because of slow processing speed in one of the components, which of the following is the term for the component that is causing the problem?

Among the descriptions A through C below concerning the effects that are obtained by simultaneously running multiple virtual servers on one (1) physical computer, which of the following lists all and only the appropriate descriptions? A: Each virtual server can run an OS with a different version, and the resources of the physical computer can be utilized effectively. B: The throughput that is gained when the number of virtual servers is increased is the same as when the number of physical computers is increased by the same number. C: A volume of data that is the same as the capacity of the HDD on the physical computer can be simultaneously recorded on all of the virtual servers.

Which of the following is the appropriate explanation of a deadlock?

In a web server, five (5) directories have a hierarchical structure as shown in the figure below. In an HTML document stored in directory B, which of the following references the file img.jpg stored in the directory E? Here, directories and files are referenced using the method described below. [Method of referencing directories and files] (1) A file is referenced as "directory name/ ... /directory name/file name", where the directory names on the path are listed and separated with "/" in sequence, followed by the file name. (2) The current directory is represented by "." (a period). (3) The directory one level above is represented by ".." (two (2) periods). (4) When a reference begins with a "/", it is assumed that the root directory has been omitted from the beginning of the reference. (5) When a reference does not start with "/", "." (a period), or ".." (two (2) periods), it is assumed that "./" for the current directory has been omitted from the beginning of the reference.

There is a system where a full backup is made after closing time every Sunday, and an incremental backup is made after closing time on Monday through Saturday. On a Wednesday, a failure happened during business hours, so a decision was made to restore data to the state at the closing time on Tuesday by using backup files. Which of the following lists all and only the necessary backup files for restoring data? Here, an incremental backup file means a backup file that contains only the data that has been modified since the previous backup (a full backup or an incremental backup) was made.

Which of the following is the appropriate description concerning Open Source Software (OSS)?

Spreadsheet software is used to predict sales according to the weather. The probability for the weather type (sunny, cloudy, rainy) on the day to be predicted and the predicted sales amount by weather type for each product are entered into the worksheet below. An expression is entered in cell E4 to calculate the predicted sales amount on the day for Product A, and this is copied to cells E5 through E6 and used. Which of the following is the appropriate expression to be entered in cell E4? [Worksheet] A B(Sunny) C(Cloudy) D(Rainy) Row2 Probability 0.5 0.3 0.2 Row4 Product A 300,000 100,000 80,000 Row5 Product B 250,000 280,000 300,000 Row6 Product C 100,000 250,000 350,000

Which of the following is the appropriate description of multithreading?

Which of the following is the appropriate role of OCR?

Which of the following is the function that aids keyboard input and lessens the trouble of entering characters, by looking up past input history for characters being entered and displaying a list of candidate character strings?

When the process for a smart speaker to provide a voice response to the content of a user speaking to a smart speaker is as in (1) through (4), which of the following is the process that corresponds to voice recognition? (1) The voice of the user is transformed into text data. (2) Text data is analyzed, and the meaning is understood. (3) The content of the response is decided, and text data is created. (4) The created text data is read out.

When an activity for building a relational database is divided into steps A through C below, which of the following is the appropriate order of the steps? A Identifying the data items to be used in the business operation B Creating tables C Inserting records

The "Purchase_list" table in a relational database manages the purchases of products. This table should be normalized and divided into a "Purchase" table and a "Product" table. Which of the following is the most appropriate field that should be contained in common in the two divided tables? [Purchase_list table] Purchase_number | Product_number | Product_name | Count | Unit_price | Payment_method | Delivery_date Note: Each purchase includes only one product, identified by Purchase_number. Each product is uniquely identified by Product_number.

Which of the following is the appropriate description of a rollback in transaction processing?

Which of the following is the appropriate purpose of exclusive control in a database management system?

Which of the following is the appropriate explanation of the POP communications protocol?

Which of the following is the file storage on the Internet that can be freely written to and read from over the Internet and can be used for saving files in place of USB memory or other such media?

Which of the following is the appropriate description of a SIM card?

Which of the following mobile communication systems not only offers higher communication speed than LTE, but also allows more devices to connect and has less lag time?

Which of the following is the most appropriate description of edge computing in an IoT system?

Which of the following is the appropriate description concerning virus infection?

Which of the following is the appropriate combination of the descriptions (i) through (iii) about threats in information security and the terms below? (i) An attack in which a malicious script injected to a web site that displays data that a visitor enters as it is, is executed on the visitor's web browser, and data such as cookies are stolen by a third party (ii) A program that infects numerous PCs, executes malicious operations on the PCs by following instructions received via a network, and conducts a coordinated attack (iii) A program that is disguised as a useful program, but once installed and executed, performs unauthorized data destruction or leakage

A document file that is stored on a file server is directly edited on a PC and then an attempt is made to overwrite the file, but the message "You do not have permission, so the file cannot be saved" is displayed. Which of the following is the appropriate combination of permissions that were set for the document file and the folder that it is stored in? [Table] File read | File write | Folder read a) Yes | Yes | No b) Yes | No | Yes c) No | Yes | No d) No | No | Yes

When a digital signature is attached to an e-mail and the e-mail is sent, in comparison to the use of a digital certificate that is issued by a trusted certificate authority, which of the following is the risk on the receiver's side that is caused by the use of a digital certificate created by the sender themselves?

In risk management for information security, the categories that include risk transfer, risk avoidance, risk mitigation, and risk retention are sometimes used. Which of the following is the appropriate description concerning these?

In a wireless LAN router, which of the following is the appropriate explanation of a function that is set up for devices brought in from external locations and is called a "guest port" or a "guest SSID" or other such names?

Which of the following is the appropriate combination of damage by incidents (i) through (iii), and confidentiality, integrity, and availability in information security? (i) A website is taken down by a DDoS attack. (ii) Inaccurate data is entered because of a typing mistake on a keyboard. (iii) Personal information is leaked because a PC is infected with malware. [Table] (i) (ii) (iii) a) Availability Integrity Confidentiality b) Availability Confidentiality Integrity c) Integrity Availability Confidentiality d) Integrity Confidentiality Availability

A business PC that was connected to a company's internal wireless LAN network was used to view a website on the Internet. Immediately after this, the web browser crashed and unknown files were created, and other such events occurred that indicated the possibility of infection with malware. Which of the following is the appropriate action that the user of this PC should take first?

Which of the following is the appropriate combination of terms or phrases inserted into A through D in the table that describes the characteristics of encryption methods? [Table] Encryption method | Key characteristics | Safe distribution | Speed [A] | Encryption key and decryption key are different | Easy | [C] [B] | Encryption key and decryption key are same | Difficult | [D] A B C D a) Common key crypto. Public key crypto. Slow Fast b) Common key crypto. Public key crypto. Fast Slow c) Public key crypto. Common key crypto. Slow Fast d) Public key crypto. Common key crypto. Fast Slow

Which of the following is the appropriate example of activities performed in C (Check) in the organizations that operate ISMS on the basis of the PDCA model?

Which of the following is the most appropriate description of ransomware?