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QUESTION
a) National regulations require the availability of the following services for all IP to PSTN, PSTN to IP, and IP to IP calls. Name any three types of these features
b) It is often heard that IP Telephony is not secure if media streams are not encrypted. Do you agree with this statement, give valid reasons to support your views
c) Compare UDP and TCP
d) Differentiate between the Transport layer and the Network Layer of the OSI Model
The School of Computing is planning to deploy a new network structure to accommodate the following scenario. Please make suggestions on how this LAN can be designed based on the fl
Currently One more way of accessing the Internet being developed is the use of cable modems. These need that you subscribe to a cable service & let you two-way communication with t
Base 64 Encoding The Simple Mail Transfer Protocol (SMTP) is a protocol used on the Internet for sending email. When you send an email, your mail client establishes an SMTP co
802.11b HR DSSS a) High-rate DSSS using a 2.4 GHz band b) Similar to DSSS excluding for encoding method c) Uses complementary code keying (CCK), encoding 4 or 8 bits to
Explain Difference between broadcast domain and collision domain? Ans) Broadcast Domain Send the packet to all the Present Network IT might be send by the person It mig
5. CSMA/CD based Ethernet LANs in various sites and Frame Relay (FR) service to connect them together. You want to make a difference in the organization by upgrading the LANs to be
Q. Show the Character-level Encryption? - Substitutional - Monoalphabetic - simplest form; also called Caesar cipher - Every character is replaced with another character
The address for a device as it is recognized at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network adapter card a
What is D-AMPS D-AMPS uses 832 channels (in every direction) with three users sharing a sole channel. This allows D-AMPS to support up to the 2496 users simultaneously per cel
Advantages There are times when using packet filters makes sense. If the connections require high throughput or the protocols has proprietary technology that makes it
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