60.A(n) ______ is hardware and/or software that protects a computer or a network from intruders.
A: Web log
B: worm
C: firewall
D: public key
A: Web log
B: worm
C: firewall
D: public key
C
举一反三
- A( )is a computer system or program that automatically prevents an unauthorized person from gaining access to a computer when it is connected to a network such as the Internet. A: firewall B: gateway C: router D: anti-virus software
- p12: __________ protects data from the outside world. A: A switch B: A firewall C: A router D: A network interface card
- Anti-Virus software protects your computer from viruses by ( ) your computer's memory and disk devices.
- An ISP supplies a _________ that you can dial from your computer to log on the internet server. A: public key B: private key C: service number D: help file
- （）is the first line of protect between your computer and the public Internet. A: The Internet protocol B: The firewall C: The anti-virus software D: The intrusion-detection systems
内容
- 0
Computer technology in all its phases from ______ to software has become less expensive. A: hardware B: hard
- 1
A computer program is a piece of_______. A: hardware B: software C: underwear D: computer
- 2
（）is the use of computing resources(hardware and software)that are delivered as a service over a network (typically the Internet). A: Virtualization B: Intemet of things C: Cloud computer D: Cloud computing
- 3
Computer technology in all its phases from __________ to software has become less expensive. A: workshop B: circuit C: hardware D: microscope
- 4
A computer system consists of hardware system and software system.