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Application Layer
The application layer is where network applications and their application layer protocols reside. The internet application layer includes many protocols such as the HTTP ( which provides for web document request and transfer) SMTP ( which provides for the transfer of e mail message) and FTP ( which provides for the transfer of tiles between two end systems. We ii se that certain network functions such as the translation of human friendly names for internet end systems like Gaia. Cs yahoo. Com to a 32 bits networks address are also done with the help of an applications layer protocol the domain name systems ( DNS).
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
Q. Define the Backbone Networks? Backbone Networks - Allows several LANs to be connected - Non of station is directly connected to the backbone - Stations are part
To accept its goals, ATM uses fixed, small sized packets known cells. Every cell has 53 octets. VPI/VCI fields shows the cells destination. PRIO say if cell can be discarded CRC
Q. Define Name Space in domain name system? - All names assigned to machines on an internet - Must be unique; either flat or hierarchical - Flat name space - name is assi
Q. What is Two Types of Errors? Single-Bit Errors: Merely one bit in the data unit has changed Burst Errors of length 'n': 2 or more bits in the data unit have changed (
how does the near/far effects infulence TDMA system?what happen CDMA system? what are countermeasures in TDMA system/
State the statements about PPP and SLIP for WAN communications? Ans) a) PPP uses its Network Control Programs (NCPs) component to encapsulate many protocols. b) SLIP
How Firewall configuration makes all the difference The greatest blunder that any company make is to just install a firewall and think that they have ensured perfect securit
Define Co-axial cable. A solid central conductor surrounded by insulating material and then by a cylindrical shield woven from fine wires is called as co-axial cable. The shie
show cdp is the command to verify if CDP is enabled.
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