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Describe shor note on Physical layer?
Classification of Access Networks Access networks can loosely be classified into three categories 1. Residential Access 2. Company Access 3. Wireless Access
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
802.11 DSSS a) Direct sequence spread spectrum in a 2.4 GHz band b) Each bit is replaced by a sequence of bits called a chip code, implemented at the physical layer c) Se
Q. Explain the types of Security Threats? (a) Normal Flow (b) Interruption: An asset of a system develops into unavailable or unusable. (c) Interception: A few unaut
Define the term - Handoff and Dynamic configuration Handoff/roaming The MAC protocol used in the wireless LAN should enable mobile stations to move from one cell to anoth
What is BGP (Border Gateway Protocol)? It is a protocol used to promote the set of networks that can be reached within an autonomous system. BGP enable this information to be c
State the Example of security audit as case study Linda narrates one of her experience about a security audit. She was performing a spot audit where she was checking certain
List the advantages of ARCNet. Here are some of the ARCNet's benefits: 1. It is extremely reliable. 2. ARCNet is simple to install and troubleshoot. 3. It has an exce
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
Wideband Digital Cross Connects A SONET cross connect accepts various optical carries rates accesses the STS signals and switches at this level . it is idally used at
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