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802.11 Architecture
ESS (Extended service set) two or more BSSs with APs connected through a distribution system (wired LAN) in an infrastructure network
a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible? b. Suppose
With a transaction server, the client requests remote procedures that reside on the server with an SQL database engine. These remote processes on the server execute a group of SQL
Assume that the clock-driven scheme for generating starting sequence numbers is used with a 16-bit wide clock counter (that is, sequence numbers range from 0 to 2^16). The clock t
Single company or organization owns this. They are usually LAN technologies. There can be multiple LANs in a campus or building linked together. They are sometimes known Intranet.
Q. Define Ring Topology? Dedicated point-to-point arrangement to neighbours Signal is conceded from device to device until it reaches destination Every device functio
Name the physical interfaces that PPP can be configured on a Cisco router: Ans) A. Asynchronous serial B. HSSI C. ISDN D. Synchronous serial These four of th
Encoding Process c= uG u: binary data sequence of length 4( input) G: Generator matrix which is 7*4 c: Codeword D
Explain Network Services Network services are the thing that a network can do. The main networking services are File Services: This contains file transfer, storage, data m
How two adjacent layers communicate in a layered network? (or What do you mean by Service Access Point?) In layered network, each layer has lots of entities and entities of lay
Question: (a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initia
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