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Explain about the network level in detail.
Network Level Firewall/Packet Filters:
At the Network level firewalls operate upon the mechanism of filtering individual IP packets by using the routers.Packet filters, termed “access control lists” onto Internet routers give the rudimentary through security.
Filters are configured to permit/discard packets based upon attributes as like:
1. Exact source or destination IP addresses
2. Exact protocol forms
3. Exact source or destination port numbers
4. TCP flags set/clear into the packet header
Dynamic address translation : If, when executing an instruction, a CPU fetches an instruction located at a specific virtual address, or fetches data from a particular virtual
What is booting? When the power is turned on, the OS has to be loaded into the main memory which is taken place as part of a process known as booting. To initiate booting a tin
Sun and Ni's Law The Sun and Ni's Law is a generalization of Amdahl's Law as well as Gustafson's Law. The fundamental idea underlying the Sun and Ni's Law is to find the soluti
Q. How to Correct the error condition while copying file in DOS? In most case, DOS allows you to correct the error condition and retry the command (by pressing R). If the drive
Q. Explain the Instruction Decode? Instruction Decode: This phase is performed under control of Control Unit of computer. The Control Unit determines the operation which is t
Q. Explain Simple Interfacing? The following is a sample of the coding, used for procedure interfacing: PUBLIC CUROFF _TEXT SEGMENT WORD PUBLIC 'CODE'
In primary storage device the storage capacity is fixed. It has a volatile memory. In secondary storage device the storage capacity is not limited. It is a nonvolatile memory. Prim
Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C) Digital Signal P
Q. Explain about Associative Memory Organisations? The associative memory is arranged in w words with b bits per word. In w x b array, every bit is known as a cell. Every cell
How many address bits are required to represent a 32 K memory ? Ans. 32K = 25 x 210 = 215, Hence 15 address bits are needed; Only 16 bits can address this.
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