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24-25 CS1840/CS2841: Internet Services

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An institution connects to the public Internet through an access link with a bandwidth of 3 Mbps. When users request content from the web, the data is transferred in the form of web objects such as HTML files, images, and scripts.

On average, each web object retrieved by the institution is 200K bits in size. This represents the typical amount of data that needs to be transmitted over the 3 Mbps access link when a user requests a web object from a server.

Calculate the transmission delay on the access link for a single web object.

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SNMP (Simple Network Management Protocol) is a protocol used to monitor and manage network devices such as routers, switches, and servers. It allows network administrators to collect performance data, detect issues, and configure devices remotely. SNMP operates over UDP, making it lightweight and efficient for quick communication between monitoring systems and network devices.

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When

a UDP receiver processes an

SNMP 

message,

which of the following statements is/are true?

(More than one option can be correct.)

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Match each term with

its correct description regarding the Browser caching.

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A

server is transmitting data to a client over a TCP connection. To ensure

efficient retransmissions, the TimeoutInterval is dynamically calculated. If

the server measures an EstimatedRTT of 100ms and a DevRTT of 20ms, calculate the TimeoutInterval? 

Provide your answer in milliseconds.

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Which of the

following are Internet transport protocols? (Select all that apply)

(More than one option can be correct.)

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Which of the

following is NOT a primary function of the network layer?

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Based on the image

provided regarding  connection-oriented

communication, which of the following does a server use to demultiplex segments

to different sockets?

The picture shows an example for how the Connection-oriented demultiplexing works.

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What are the five layers in the Internet protocol stack?

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A student is learning about the DNS hierarchy and wants to identify the Top-Level Domain (TLD) in a given URL.

Which part of www.nyu.edu corresponds to the TLD?

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A university IT department accidentally grants all students access to exam answer sheets, allowing them to edit and delete information. Which two network security principles have been compromised?
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