Answer: NTP ( Network time protocol)
Explanation:
Network time protocol is the time server which basically works in the TCP and IP network. It rely on the UDP ( User data-gram protocol) at port 123.
NTP server is the dedicated network time protocol devices which basically use for synchronize the network.
It is basically design to synchronize the clock in the computer and across the internet network and local area network. NTP server basically maintain the quality of the reference clock time.
Answer:
Internet Protocol refers to a set of rules that govern how data packets are transmitted over a network. Internet protocol describes how data packets move through a network. Its important to have agreed upon protocols because Computers make use of protocols as well, to enable them to communicate. Devices need to communicate. When two devices want to successfully communicate, they must agree to follow some rules about the way they will do it.
Answer:
Operating system
Explanation:
An interrupt is the signal sent to the processor that interrupts the current process. It may be generated by a hardware device or a software program.With each interrupt the CPU hardware does exactly the same thing, which is what enables operating systems to take control of the current user operation.
Answer: Option (c) is correct
Explanation:
PDF is portable document format that come in form of file format .It is used for sharing and transmitting between computing and operating systems for viewing and printing in actual page layout. They can be used fro eBooks ,scanned document and text etc.
- Other options are incorrect because not all business organization use PDF, PDF has the capability of being edited and it stands for "portable document format".
- Thus, the correct option is option(c)
