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How Firewall configuration makes all the difference
The greatest blunder that any company make is to just install a firewall and think that they have ensured perfect security. While firewalls protect from outside threats, it requires updating from time to time. Poor firewall configuration has been considered the cause of the biggest security breaches that took place in the recent past.
Write the layer on which layer does L2F, PPTP and L2TP operate?
What is use of Carrier sense multiple access Carrier sense multiple access with collision detection (CSMA/CD) is a form of medium access control in which a station listens to
Define the tasks for which SNS is used SNA can be used for the following types of tasks: - Terminal access to mainframe and midrange computer applications. - File trans
(i) Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. a) Calculate the efficiency of stop-and-wait ARQ in
Error Detection-- CRC Powerful error detection system Rather than addition, binary division is utilized A series of redundant bits called "CRC" or else "CRC remai
Ethernet Addressing Every station on the network must have a unique physical address Offered by a six-byte physical address encoded on the network interface card (NIC)
ROLE OF DESIGN IN ACHIEVING RELIABILITY One of the most important methods for achieving high reliability is through design. Use reliability cannot be higher than the design re
Explain the working of ISDN Stands for Integrated Services Digital Network. It is a way to move more data over existing regular phone lines. ISDN is rapidly becoming availab
Every input line of the combinational circuit represents an individual element of the string say xi and every output line results in the form of a sorted list. In order to attain t
Example Programmes for Parallel Systems Now we shall complete this with the examples on shared memory programming. Example 13: Adding elements of an array using two proce
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