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Comm 280 PSU Exam 1 With Complete Solutions Latest Update
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Comm 280 PSU Exam 1 With Complete Solutions Latest Update
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Solution 2024/2025Pepper
Comm 280 PSU Exam 1 With Complete
Solutions Latest Update
4 Core Internet Elements ANS✔✔ -Physical Layer
-Transport Layer
-Application Layer
-Content Layer
Physical Layer ANS✔✔ -Wired: Cable, DSL, Ethernet
-Wireless: Cell Phone, Satellite, Wi-Fi
Transport Layer ANS✔✔ -How the information will be transmitted
-DNS, TCP/IP
Application Layer ANS✔✔ -The Applications used by businesses and consumers
-Email, IM, Facebook, Twitter, Instagram, Snapchat
Content Layer ANS✔✔ -The actual content that is transmitted
-Text, Image, Audio, Video
Circuit Switched Networks ANS✔✔ -Initially required manual intervention to connect two people (Telephones)
-Evolved to limit manual labor but still lacked effieciency
Email Data Packet ANS✔✔ [Header] [ Text (Payload) ] [Trailer]
Header (Data Packet) ANS✔✔ -Includes instructions
, Solution 2024/2025
Pepper
-Originating address
-Destination address
-Packet number
-Packet length
Text (Data Packet) ANS✔✔ -The body of what is in the packet
-"Hey Mom and Dad..."
Trailer (Data Packet) ANS✔✔ -Error detection
-Message complete
Packet Switches (Routers) ANS✔✔ -Integral role in transferring data from the 1st destination to the 2nd
-Packets are received at one node and prioritized for routing to another node
-Data is interleaved to maximize utilization
Packet Switched Network vs. Circuit Switched Network ANS✔✔ Compared to circuit switched networks, packet
switching offers scalability and resource utilization benefits
How much has internet traffic increased ANS✔✔ 5x in 5 years
Cisco prediction 2019 video content routing rate ANS✔✔ 1 million minutes of video content routed over the internet
every second
The internet is sometimes referred to as a "Network of ______________" ANS✔✔ Networks
Internet Protocol Suite (TCP/IP) ANS✔✔ The internet facilitates the transfer of data, via a packed switched network,
using the Internet Protocol Suite (TCP/IP)
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