M1. The internetworking principles defined by Cerf and Kahn include

a) Circuit switching and guaranteed delay

b) Bandwidth reservation

c ) Best effort service and decentralized control

d) a and c

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M2. In a client/server architecture

a) a client always has a permanent IP address

b) a client initiates the connection

c) a client can communicate directly with another client

d) a client may be intermittently connected

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M3. In TCP, a welcoming socket is

(a) used by the server to receive incoming request from a client

(b) closed by the server when interaction with that client is completed

(c) bound to a specific port number

(d) all of the above

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M4.The application layer in the Internet (TCP/IP) protocol stack

a) is where the OSI session layer functionality resides, if it is present

b) is no more no less than the OSI application layer

c) by design, always has more limited functionality than the OSI application layer

d) never includes functionality equivalent to the OSI session layer

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M5. A process identifier

(a) includes IP address and port number

(b) is only a port number

(c) is used to address processes when processes in different hosts communicate

(d) is the combination of local port number, and remote port number

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M6. A UDP server

(a) has a socket, where it receives incoming data from clients

(b) binds the listening socket to a port number

(c) replies to a client by using the source IP address and source port number of the incoming packet

(d) does not need to provide the IP address of the client to the socket when it sends a reply to the client

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M7. When a packet is transmitted over a transmission link between adjacent nodes

a) the first bit of the packet always reaches the receiver before the last bit leaves the transmitter

b) the first bit of the packet never reaches the receiver before the last bit leaves the transmitter

c) the first bit of the packet will likely reach the receiver before the last bit leaves the transmitter if the propagation delay is low compared to the transmission delay

d) the first bit of the packet will likely reach the receiver before the last bit leaves the transmitter if the transmission delay is low compared to the propagation delay