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Q. Explain about Domain Name System?
-In the past, mapping of IP addresses was static using a host file
-Impossible in today's dynamic environment
-Domain Name System (DNS) was created to divide mapping information to be stored on multiple computers to be accessed when needed
What are local variables? Local varaiables are those which are declared within a block of code like methods. Local variables should be initialised before accessing them.
Q. What do you mean by Addressing? Addressing Require to uniquely and universally identify every device to allow global communication Internet address or IP address is us
UPD is a layer 4 Transport protocol. It is connection-less due to it does establish a connection thus the 3 step handshake is not needed, it does NOT execute any flow control or ac
Q. What is Topology? - Physical/logical arrangement - Topology of a network is the geometric depiction of the relationship of all the links and linking devices to one anothe
Router# reload is the command to reload the router
Describe the static routing process A static routing method does not adapt to changing conditions on the network but uses a fixed method developed ahead of time. With alternat
Q. Explain the Public-Key Cryptography? Public-Key Cryptography - Each user has the same encryption algorithm and key - Decryption algorithm also key are kept secret
Define the term Socks- Network security As it is well known, each type of network security protects data at a different layer of the OSI model. Built-in at each layer lies the
Q. Flow control in TCP? The amount of data a source is able to send before receiving an ACK from the destination Whether to send 1 byte of data as well as wait for ACK
Q. Show the Refraction and Reflection in Fiber-optic cable ? - Refraction often takes place when light bends as it passes from one medium to another less dense medium - Wh
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