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Describe briefly how firewalls prevent network.
A firewall is only a program or hardware device which filters the information coming via the Internet connection within your private network or computer system. When an incoming packet of information is flagged through the filters, this is not allowed via the network.
A firewall provides a company tremendous control over how people employ the network.
How can a function return a pointer to its calling routine? The general form of a function is: type_specifier function_name(parameter list) { body of function; }
Unencoded micro-instructions One bit is required for each control signal; so number of bits needed in a micro-instruction is high. It represents a detailed hardware vi
What are program-invisible registers? Ans: the local and global descriptor tables are found in the memory system. To access and specify the address of these tables, program inv
Q. Explain Disk Cartridges ? Disk Cartridges: Removable disk cartridges are an option to hard disk units as a form of secondary storage. Cartridge generally comprises one or
Voice synthesis Loud speakers and special software are used to output information in the form of sound to help blind and partially-sighted people; it also helps people who have d
Q. What do you mean by Daisy chain? This scheme provides a hardware poll. With this scheme, an interrupt acknowledge line is chain by different interrupt devices. All I/O inter
Q. Explain Real time system? A real time system defines an interactive processing system with severe time limitations. A real-time system is used whenever there are rigid time
Explain LRU Page replacement algorithm. LRU policy: It expands to least recently use. This policy proposes that we remove a page that last usage is farthest from present time
What is a accepting computation history? An accepting computation history is explained as , Let M be a Turing machine and w be a input string, for M on w is a sequence of con
what is distortion
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