Question
1-1 HTTP is stateless. What do we mean when we say HTTP is stateless? In answering this question, assume that cookies are not used. Check
1-1
HTTP is stateless. What do we mean when we say HTTP is stateless? In answering this question, assume that cookies are not used. Check all answers that apply.
An HTTP client does not remember anything about what happened during earlier steps in interacting with any HTTP server. | ||
An HTTP server does not remember anything about what happened during earlier steps in interacting with this HTTP client. | ||
We say this when an HTTP server is not operational. | ||
An HTTP client does not remember the identities of the servers with which it has interacted. | ||
The HTTP protocol is not licensed in any country. |
1-2
The peer-to-peer (P2P) paradigm. Which of the characteristics below are associated with a P2P approach to structuring network applications (as opposed to a client-server approach)?
There is a server with a well known server IP address. | ||
HTTP uses this application structure. | ||
There is a server that is always on. | ||
A process requests service from those it contacts and will provide service to processes that contact it. | ||
There is not a server that is always on. |
1-3
UDP service. When an application uses a UDP socket, what transport services are provided to the application by UDP? Check all that apply.
Throughput guarantee. The socket can be configured to provide a minimum throughput guarantee between sender and receiver. | ||
Loss-free data transfer. The service will reliably transfer all data to the receiver, recovering from packets dropped in the network due to router buffer overflow. | ||
Flow Control. The provided service will ensure that the sender does not send so fast as to overflow receiver buffers. | ||
Real-time delivery. The service will guarantee that data will be delivered to the receiver within a specified time bound. | ||
Best effort service. The service will make a best effort to deliver data to the destination but makes no guarantees that any particular segment of data will actually get there. | ||
Congestion control. The service will control senders so that the senders do not collectively send more data than links in the network can handle. |
1-4
TCP service. When an application uses a TCP socket, what transport services are provided to the application by TCP? Check all that apply.
Loss-free data transfer. The service will reliably transfer all data to the receiver, recovering from packets dropped in the network due to router buffer overflow. | ||
Congestion control. The service will control senders so that the senders do not collectively send more data than links in the network can handle. | ||
Flow Control. The provided service will ensure that the sender does not send so fast as to overflow receiver buffers. | ||
Real-time delivery. The service will guarantee that data will be delivered to the receiver within a specified time bound. | ||
Best effort service. The service will make a best effort to deliver data to the destination but makes no guarantees that any particular segment of data will actually get there. | ||
Throughput guarantee. The socket can be configured to provide a minimum throughput guarantee between sender and receiver. |
1-5
What is the Internet? Which of the following descriptions below correspond to a "nuts-and-bolts" view of the Internet?
A collection of hardware and software components executing protocols that define the format and the order of messages exchanged between two or more communicating entities, as well as the actions taken on the transmission and/or receipt of a message or other event. | ||
A platform for building network applications. | ||
A "network of networks". | ||
A collection of billions of computing devices, and packet switches interconnected by links. | ||
A place I go for information, entertainment, and to communicate with people. |
1-6
Computing utilization . Consider the scenario shown below, with four different servers connected to four different clients over four three-hop paths. The four pairs share a common middle hop with a transmission capacity of R = 300 Mbps. The four links from the servers to the shared link have a transmission capacity of RS = 50 Mbps. Each of the four links from the shared middle link to a client has a transmission capacity of RC = 90 Mbps.
Assuming that the servers are all sending at their maximum rate possible, what are the link utilizations of the client links (with transmission capacity RC)? Enter your answer in a decimal form of 1.00 (if the utilization is 1) or 0.xx (if the utilization is less than 1, rounded to the closest xx).
Your answer: The utilization of client link is: [A]
1-7
Components of packet delay. Match the description of each component of packet delay to its name in the pull down list.
|
|
1-8
The client-server paradigm. Which of the characteristics below are associated with a client-server approach to structuring network applications (as opposed to a P2P approach)?
There is a server that is always on. | ||
A process requests service from those it contacts and will provide service to processes that contact it. | ||
There is not a server that is always on. | ||
There is a server with a well known server IP address. | ||
HTTP uses this application structure. |
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started