Grouping of the OSI layer
Group OSI layers as per their function?
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The seven layers of OSI model can be divided into three subgroups. Physical, data link and network layers are considered as the network support layers; they generally deal with the physical aspects of moving the data from one device to the other. Session, presentation and the application layers are considered as the user support layers; they enable interoperability among the unrelated software systems. The transport layer guarantees end-to-end reliable data transmission.
Briefly describe the relationship between the VPN and firewalls?
A sender sends a series of packets to the same destination using 5-bit sequence numbers. If the sequence number starts with 0, what is the sequence number after sending 100 packets?
What is meant by Client/Server?
List all the steps included in making the checksum.
Determine how many two-host subnets can be prepared from a /24 network? Answer: 64, since 2 bits are required for the hosts on the network, exiting 6 bits for the subnet.
Describe the two kinds of duplex.
Give a brief explanation of the term Public IP.
expanation of the illustration of the Metropolitan Area Network
Explain the difference between private and public IP?
Explain the aim of the Domain Name System? Describe the three main division of domain name space.
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