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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.
Question: a) Differentiate between the following key terms used in any e-banking security system: (i) Authorisation v/s Authentication. (ii) Data Integrity v/s Data Conf
Hold-Down Timers - Routers ignore network update information for a number of periods.
What is DNS? DNS is Domain Name System. The major function of this network service is to provide host names to TCP/IP address resolution.
Question 1: a) Give three examples of Shells in Linux. b) Differentiate between the Join command and the Paste command in Linux, use an example to support your answer.
What is IPv6? IPv6, or Internet Protocol version 6, was developed to change IPv4. At present, IPv4 is being used to control internet traffic, butis expected to get saturated in
What is the difference between CSMA/CD and CSMA/CA? CSMA/CD, or Collision Detect, retransmits data frames when a collision occurred. CSMA/CA, or Collision Avoidance, will first
What is Proxy Sever and Firewall Proxy Sever Also known as a proxy or application level gateway. It is an application that breaks the connection among sender and receiver.
Can you describe screened subnet architecture?
Multistation Access Unit (MAU) Combines individual automatic switches May perhaps daisy chain to support more stations
Recognize the command to show the Frame Relay map table Ans) Router# show frame-relay map is the the command to show the Frame Relay map table
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