How did Licklider and his team in the early 1960s experiment with a precursor to the internet?
Connecting two computers over a dial-up telephone line
What is the Domain Name System (DNS) designed to do primarily?
Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on?
Layers
T/F: Both the data link and transports layer protocols may provide error correction
True
What allows for communication between the applications layer and the transport layer
Sockets
Which of the following protocols belong to the application layer? [ethernet/DNS/UDP/IP]
DNS
Which two protocols belong to the transport layer? [IP/TCP/UDP/HTTP]
TCP, UDP
When an application sends a packet of information across the network, this packet travels down the IP stack and
undergoes what process
Encapsulation
According to the end-to-end principle, where should most of the Internet's functionality/intelligence be
implemented?
At the edges of the network
What is the difference between hubs, bridges, and routers?
They operate on different layers of the IP stack
T/F: the UDP and TCP protocols have a large overlap of functionality
false
, T/F: the transport layer protocols offer a logical connection between processes, only if the hosts reside in the same
network
false
T/F: a sender host receives a message from the application layer it encapsulates it with the transport layer header
before passing it down to the network layer
true
T/F: an application running on a host can bind to multiple sockets simultaneously
true
T/F: a host cannot maintain a TCP socket and a UDP socket simultaneously
false
T/F: the identifier of a UDP socket is a tuple of destination IP address and port
true
T/F: the identifier of a TCP socket is a tuple of source IP address and port
false
T/F: UDP is considered more lightweight than TCP
true
T/F: when two hosts use UDP to send and receive messages, they need to signal the end of sending data to each other
when they are done
false
T/F: one of the functionalities that UDP offers is to increase or decrease the pace with which the sender sends data to
the receiver
false
T/F: UDP offers basic error checking
true
T/F: assume hosts A, B, and C. Host A has a UDP socket with port 123. Hosts B and C each send their own UDP
segment to Host A. Hosts B and C cannot use the same destination port 123 for sending their UDP segment
false
Connecting two computers over a dial-up telephone line
What is the Domain Name System (DNS) designed to do primarily?
Translate domain names into IP addresses
What is the architectural design of the Internet protocol stack based on?
Layers
T/F: Both the data link and transports layer protocols may provide error correction
True
What allows for communication between the applications layer and the transport layer
Sockets
Which of the following protocols belong to the application layer? [ethernet/DNS/UDP/IP]
DNS
Which two protocols belong to the transport layer? [IP/TCP/UDP/HTTP]
TCP, UDP
When an application sends a packet of information across the network, this packet travels down the IP stack and
undergoes what process
Encapsulation
According to the end-to-end principle, where should most of the Internet's functionality/intelligence be
implemented?
At the edges of the network
What is the difference between hubs, bridges, and routers?
They operate on different layers of the IP stack
T/F: the UDP and TCP protocols have a large overlap of functionality
false
, T/F: the transport layer protocols offer a logical connection between processes, only if the hosts reside in the same
network
false
T/F: a sender host receives a message from the application layer it encapsulates it with the transport layer header
before passing it down to the network layer
true
T/F: an application running on a host can bind to multiple sockets simultaneously
true
T/F: a host cannot maintain a TCP socket and a UDP socket simultaneously
false
T/F: the identifier of a UDP socket is a tuple of destination IP address and port
true
T/F: the identifier of a TCP socket is a tuple of source IP address and port
false
T/F: UDP is considered more lightweight than TCP
true
T/F: when two hosts use UDP to send and receive messages, they need to signal the end of sending data to each other
when they are done
false
T/F: one of the functionalities that UDP offers is to increase or decrease the pace with which the sender sends data to
the receiver
false
T/F: UDP offers basic error checking
true
T/F: assume hosts A, B, and C. Host A has a UDP socket with port 123. Hosts B and C each send their own UDP
segment to Host A. Hosts B and C cannot use the same destination port 123 for sending their UDP segment
false
