Solve 50 computer operation true false questions

1. Inter-process communication is to disseminate or exchange information between different processes, so what media can be accessed by both parties between different processes? The user space of the processes is independent of each other and generally cannot be accessed from each other, with the only exception being shared memory.

District. However, the system space is a "public place", so the kernel can obviously provide such conditions. Other than that, it's a peripheral that both parties can access.

In this sense, the two processes can of course also exchange information through a normal file on disk, or through the "registry."

or certain entries and records in other databases. Broadly speaking, this is also a means of inter-process communication, but it is not generally referred to as "inter-process communication".

2. Who came up with this question? The best book in this area is UNIX Network Programming Volume II, Interprocess Communication, a classic. However, I have never seen him write more about low-level communication tools and high-level communication tools. Clause.

First, inter-process communication uses mechanisms rather than tools. Clause.

Second, there is no distinction between high-level and low-level, only the distinction between suitable and unsuitable.

File and record locking. In order to avoid confusion caused by access and operation caused by two processes requiring access to the same shared resource at the same time, the shared resource must be locked before the process can access it, and then released after the process has finished accessing. This is a guarantee of mutual exclusivity that UNIX provides for shared resources.

2) Pipes. Pipelines are typically used for communication between two different processes. When a process creates a pipeline and calls fork to create one of its own child processes, the parent process closes the read pipeline and the child processes close the write pipeline, thus providing a data flow between the two processes.

A way to move. 3) is a first-in, first-out queue. It is similar to a pipeline, allowing only one-way flow of data.

Each FIFO has a name that allows unrelated processes to access the same FIFO. Therefore it also becomes a named tube. 4) Message queues.

A mechanism for sharing resources between different processes under UNIX; UNIX allows different processes to send formatted data streams as messages to any process. Any process that has the operation permission on the message queue can use msget to complete the operation control of the message queue. By using message types, a process can read messages in any order, or prioritize messages.

5) Signal light. As a method of inter-process communication, it is not used to exchange large amounts of data, but rather for synchronization between multiple processes (coordinating access to a shared bucket). 6) Shared memory.

Storage sharing is achieved through traffic lights (similar to "stop at a red light, go at a green light").

Question 84 ( min. Each slide in a presentation does not necessarily have a remarks page.

Correct Question 85 ( Points The Print Range option group allows you to specify that all slides in the presentation be printed, the current slide, or selected phantoms.

Correct Question 86 ( Points A computer with the same hardware configuration will have exactly the same desktop appearance.

Error Question 87 ( marks.

Computers are often susceptible to computer viruses during the replication and exchange of information.

Correct Question 88 ( Points The position where a paragraph appears on the printed paper is the margin The amount of paragraph indentation.

Error Question 89 ( Points Worksheets can be moved and copied within the same workbook or between different workbooks.

Correct Question 90 ( Points Absolute addresses are the same as relative addresses in Excel, but they are written differently.

Error Question 91 ( Points: In Windows, the taskbar can only be placed at the bottom of the desktop and cannot be placed anywhere else.

Error Question 92 ( points When applying a color scheme, it can only be applied to all slides, not just one slide.

Error Question 93 ( Points To modify the text color of a hyperlink that has been created, you can do so by modifying the color scheme.

False Question 94 ( points Select the checkbox for PowerPoint with the type of "Browse at booth (full screen)" for "Loop**, esc key to stop".

Error Question 95 ( min The move file operation will put the file in a new location, and the file in the original location will no longer be kept.

Error Question 96 ( Points The so-called resource sharing is to allow all computer users to use all kinds of software and hardware resources of all computers on the network at will.

Correct Question 97 ( Points When entering Chinese characters, the keyboard should be in lowercase.

Correct Question 98 ( points In Excel, to copy the contents of the clipboard to the current cell, you should press the copy button.

Error Question 99 ( Score In Excel, the data type of date data belongs to the literal type.

Error Question 100 ( Points A hyperlink on a web page allows users to jump from one web page to another, but not from one to another. Mistake.

Wrong, right, right, wrong, wrong, right.

I'm learning computer science, but some of these basic knowledge have been forgotten, and some questions have been checked for you on the Internet, I hope it will help you!

1. a.False (not accurate) 2

b.Correct 3 a.

Error 4 b.Correct 5

Error Word belongs to a type of application software. 6.Correct (not accurate).

7.Correct 8Correct 9

Error (not accurate) 10Error (the print is static). 11.

Error 12That's right. 13.

Mistake. 14.Error 15

Correct 16Correct 17Correct 18

Mistake. 19.Error 20

Error 21Error 22Correct 23

Error 24Correct 25Error (not accurate) 26

Correct 27Mistake. 28.

Error (1st generation) 29Correct 30Error I