17. | What is NAT? | |||||||
Answer: Option A Explanation: NAT is commonly used by nearly all comsumer routers today, both hardware and software. |
18. | What is not always necessary for accessing the Web? | |||||||
Answer: Option D Explanation: You need a browser, online access and a computer to surf the Web, but if you’re on a local area network (LAN) that’s connected to the Internet, you don’t need a modem to go online. |
19. | On what date was the debut of the first IBM Personal Computer? | |||||||
Answer: Option A Explanation: Before IBM created its personal computer, two types of computer systems, Apple II and CP-M, dominated the microcomputer world. Neither of these systems were PC compatible, or Mac-compatible (the two primary standards in place today). The original IBM PC became a new standard in the microcomputer industry. Since then, hundreds of millions of PC-compatible systems have been sold, as the original PC grew into a large family of computers and peripherals. More software has been written for this computer family than for any other system on the market. |
20. | A computer virus that actively attacks an anti-virus program or programs in an effort to prevent detection is… | |||||||
Answer: Option B Explanation: No answer description available for this question |