Graded Assessment - Layered Architecture

Graded Assessment – Layered Architecture >> Fundamentals of Network Communication

2 points

IP address

Physical address

Domain name

None of the above

2.Suppose an application layer entity wants to send an L-byte message to its peer process, using an existing TCP connection. The TCP segment consists of the message plus 20 bytes of header. The segment is encapsulated into an IP packet that has an additional 20 bytes of header. The IP packet in turn goes inside an Ethernet frame that has 18 bytes of header and trailer. What is the bandwidth utilization in terms of the percentage of the transmitted bits in the physical layer corresponds to message information if L = 500 bytes?

2 points

90%

100%

70%

80%

2 points

Error control

Flow control

Connection-based data transfer

None of the above

2 points

They differ in the number of layers

TCP/IP model does not have presentation layer, but OSI model has

TCP/IP model does not have session layer, but OSI model has

All of the above

2 points

Data link layer is concerned with framing and the transport layer is not

Data link layer is concerned with flow control and the transport layer is not

Data link layer is concerned with multiplexing and the transport layer is not

All of the above

1 point

Application layer

Presentation layer

Session layer

Presentation layer and Session layer

1 point

Data compression

Data encryption

Data decryption

All of the above

Graded Assessment – Layered Architecture >> Fundamentals of Network Communication

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