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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.
Verify VLANs and trunking. Use the show ip interface trunk command on S1 and the show vlan command on S2 to determine that the switches are trunking correctly and the proper VL
What is Medium Access Control of Ethernet? The set of rules which make sure that each node in an Ethernet gets a fair amount of frame transmission opportunity, are known as the
Question 1 Differentiate LAN and WAN Question 2 Explain the TCP/IP Reference Model with diagram Question 3 Describe Circuit switching and message switching Question
Describe autonomous system?
What is WAN? A wide area network is defines a LAN of LANs. WANs connect LANs that might be on opposite sides of a building, across the country or around the world. WANS
Features of FDM 1.The FDM channel carries only one phone circuit at a time. 2.If an FDM channel is not in sue then it is sits idle and cannot be used by other user
Q. Modem stands for modulator - demodulator ? - Modulator are to creates an analog signal from binary data - Demodulator are to recovers the binary data from the modulated s
WAN interface card(WIC) slots Two fixed WIC slots are present in 2600 series router except 2691. It has contained 3 WIC slots. Network Module Expansion Slot( NM) slot
Convergence time is slower for Distant Vector routing and is faster for Link State routing.
The address recorded by a router should be its outgoing interface. That is, if a router forwards a datagram that has the record route option enabled, and if the datagram arrives at
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