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Question:
(a) Short Message Service (SMS) is a service available on most mobile phones that allows the sending of short messages between mobile phones, other handheld devices and even landline telephones.
Briefly describe why an SMS is limited to 160 characters.
(b) Multimedia Messaging Service (MMS) is a standard for a telephony messaging systems that allow sending messages that includes multimedia objects (images, video, audio, rich text) and not just text messages as in Short message service.
Briefly explain the two modes of delivery in MMS.
(c) Prepare the basic steps that should be taken to secure a WiFi network.
GRP uses a composite metric complete up of bandwidth and delay by default, it updates each 60 Seconds and will trigger an update if the topology changes.
Q. Explain Types of Redundancy Checks? Parity Check Simple Parity Check Two Dimensional Parity Check / Longitudinal Redundancy Check (LRC) CRC (Cyclic Redund
define protocol
RIP and IGRP are Distance Vectoring protocols that send their whole routing tables to their neighbours. In some Cisco literature, EIGRP is listed as an 'advanced distance vector
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
Urgent Pointer This 16 bite which is valid only f the urgent flag is set is used when the segment contains urgent data. If defines the number that must be added t
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Fully connected : It is the most powerful interconnection topology. In this every node is directly associated to all other nodes. The limitation of this network is that it needs t
What are the popular topologies other than basic Topologies? Apart from basic topologies some other topologies worth considering are: mesh topology (each device linked to all o
UDP sends packets 'blind' down the network, and relies on upper-layer protocols to form connections and identify errors. TCP is a connection-oriented protocol that can give reliabl
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