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When an error is discovered the receiver is able to ask the sender to retransmit the entire data unit
Error Correction-Forward Error Correction
Question: (a) Explain how a Token Ring networks allows sharing of bandwidth (access control). (b) (i) CSMA/CD is not appropriate for wireless communication. Explain wh
802.11 Architecture ESS (Extended service set) two or more BSSs with APs connected through a distribution system (wired LAN) in an infrastructure network
Can you describeconvergence in networks?
Explain BGP path attributes
• This device creates one big collision domain and one large broadcast domain.
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
ARP - Address Resolution Protocol It is the protocol that traces IP addresses to MAC addresses. RARP - Reverse Address Resolution Protocol It is the protocol within the TC
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
importance of mail server ,proxy server ,modem ,intranet and web site
What is uniform delivery time A uniform delivery time is required for voice, so amount of jitter in net- work is significant. This could be expressed as standard deviation of d
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