A application layer b network layer c data link layer d physical layer
2. The necessary hardware for accessing the Internet through the local area network is _ _ _ _ _ _ d _ _ _ _ _
A network card b network cable c router DMODEM
3. The following is _ _ _ A _ _ _ ICP, which is not an Internet content provider.
A netcom b Sina c Sohu d Netease
4.IPV6 address consists of _ _ _ _ d _ _ bits of binary number.
A33B65C49D 128=4*32
5. When adding a data table to a slide in powerpoint, first copy the data from the spreadsheet, and then use the command _ _ _ _ _ c _ _ in the Edit menu.
Select Clear All Paste Replace.
6. At the end of any item in the slide, if you want to create a new slide, you can press _ _ _ _ _ b _ _.
A.Alt+TabB。 shift+Enter shift+tab ctrl+Enter
7. The following methods to prevent computer viruses are _ _ _ _ c _ _ _ _
A install 360 security guard software for computers, b upgrade antivirus software frequently, c speed up passwords for computers, d don't open strangers' emails easily.
8. The following statement about system restore is true _ _ _ _ _ A _ _ _ _
A system restore will automatically upgrade the operating system B system restore can remove some viruses C system restore can automatically generate D system restore must be set in advance.
9. The content of message authentication does not include _ _ _ _ _ A..
A verify the authenticity of the sender and receiver of the message; b verify the sequence and time of the message if the content of the message has been accidentally or intentionally tampered with; c verify the IP address of the sender.
10. Computer security does not include _ _ _ _ _ A _ _.
A entity safety b operator's personal safety c system safety d information security
1 1. In the drawing tool, it is _ _ _ _ _ _ _ _.
A edit color b zoom image c view image attribute d insert audio file.
12. Among the following options, the media tool that can process images is _ _ _ _ _ b _ _ _ _ _
An address book BPhotoshopC Notepad D screen keyboard
13. The incorrect description about video equipment is _ _ _ _.
The sound card used to make computer sound B is used to compress video information.
C is used to watch TV on PC, and TV card D is used to connect digital camera and collect DV movies on the hard disk DV card of PC.
14. The key technologies to be solved in turning ordinary computers into multimedia computers do not include _ _ _ _ _ D _ _ _ _
A video and audio signal collection B multimedia data compression coding and decoding technology C real-time processing of video and audio data and skills D optical cable access
15. The main electronic components used in the first generation computers were _ _ _ _ _ A _ _.
A electron tube b transistor c small and medium-sized integrated circuits d large-scale and ultra-large-scale integrated circuits
16. computers with strong pertinence, high efficiency and simple structure belong to _ _ _ D _ _ _
A electronic digital computer b electronic analog computer c electronic computer d special computer
17. Computers can save, process, analyze and reorganize a large amount of information because computers have _ _ _ _ AC _ _.
A strong memory, B logical judgment, C high calculation accuracy, D automatic control.
18. When developing artificial intelligence with computers, the following options are _ _ _ _ _ _ _ C _ _ _ _.
A information retrieval system b information management system c traffic control system d expert knowledge system
19. Useful _ _ _ _ can be obtained from the data processed by the computer.
A information b graphics c sound d image
20. The two main parts of a computer system are _ _ _ _ _ _ _ C _ _ _ _ _-
A system software and application software b host and external equipment c hardware system and software system d input equipment and output equipment