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Q. Illustrate Stop-and-Wait Automatic Repeat request?
- Simplest flow as well as error control mechanism
- The sending device keeps a duplicate copy of the last frame transmitted until it receives an acknowledgement
- Frames signifies alternately numbered as 0 and 1
- ACK for frame0 = ACK 1 and for frame1= ACK0
- Out of order frames as well as erroneous frames are discarded and no ACK is sent
- Timers
- Control Variables
When using access lists, it is important where those access lists are placed. Which Statement best defines access list placement Ans) Put standard access lists as near the desti
There are two dominant forms of building distributed systems: client-server systems, i.e. systems in which one machine acts as a server and act as clients; and peer-to-peer systems
Path Overhead It is part of SPE and contain followings information: Performance monitor of synchronous transport , signal , path , track ,parity ,checks, and path status.
Prohibited use of VPN
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
Hub A hub is a small box that connects individual devices on network so that these devices can communicate with each other. Hub is an inexpensive device. It is comm
What are IP addresses? IP address refers to the name of a computer on a network, like the Internet. An Identifier for a computer or device on a TCP/IP network, like the
Q. Resolution of domain name system? - Mapping a name to an address or else an address to a name - Resolver is a DNS client used by an address to provide mapping - In re
Control Frame: set_successor Station X wants to leave Successor S Predecessor P X sends set_successor frame to P With S as data field P changes its
Firewall The NAT router allows receiving of number of a data streams. If it receives a transmission in the form of acknowledgement or data streams or error responses from an ex
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