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Q. Explain Types of Redundancy Checks?
Parity Check
CRC (Cyclic Redundancy Check)
Check Sum
Describe the main factors of switching delay No. The speed of propagation is 200,000 km/sec or 200 meters/µsec. In 10 µsec signal travels 2 km. Therefore, each switch adds equi
Name the Twisted pairs cables Twisted pairs cables (Shielded and Unshielded), Coaxial cable and Fiber optic cable. ?Testing of the points ?Testing of the entire network t
What is multicast routing? Sending a message to a group is known as multicasting, and its routing algorithm is known as multicast routing.
What are the various security measures A matter of prime concern to companies is the overheads in the form of huge investment on extra hardware and software. It is quite possi
Demarcation is the point in which responsibility changes hands.
Different layers of OSI Model ?
Question: a) The cpio utility has three operating modes. What are they? b) The characters of the permission string are broken up into three groups of three characters. Ex
Question: (a) What is a script kiddie? Is it a significant security threat, and why? (b) Assume that UNIX uses the user login name in lieu of the traditional salt, what is
Q. Applications of networks? End systems (hosts): - Run application programs - Example email, Web - At -edge of network Client/server model - Client host
Q. What is Aspects of Security? - Security Attack: Any action whichcompromises the security of information owned by an organization. - Security Mechanism: A mechanism th
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