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Q. What is Manchester?
- Utilizes an inversion at the middle of each bit interval for both synchronization and bit representation
- Negative-to-positive represents binary 1
- Positive-to-negative symbolize binary 0
- Achieves similar level of synchronization with only 2 levels of amplitude
Define GRE in PPTP?
Explain Wiretapping?
Dissimilar kinds of firewalls?
What are the characteristics of Client/Server? Service Encapsulation of services Shared resources Asymmetrical protocols Mix-and-match Transparency of location
Q. Describe Network security and Internetworking security? Network Security - Layers 5-7 - Securing the localized private domain. Network Administration, File Permissions
This new model of Client/Server having of thin, portable, "universal" clients those talks to super fat servers. In the easiest form, a web server returns documents when clients ask
Network Layer and Routing As discussed in previous chapters the physical layer provides connection sand services to the data link layer while the data link layer is
(i) Suppose N stations are connected to an extended Ethernet LAN, as shown below shown in Figure operating at the rate of 10 Mbps. Assume that the efficiency of each Ethernet is 8
IPv6 packet Format The format of an IPv6 header is shown in figure. Although IPv6 addresses are four times the size of IPv4 address the basic IPv6 header is only twice
State about the communications network 1) The communications network may only accept blocks of data up to a specific size. (2) Error control might be more effective with a
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