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IS 3413 Telecom (Huddleston) Exam 1 Review 2023| 109 Questions with Complete solutions- Graded A+
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IS 3413 Telecom (Huddleston) Exam 1 Review 2023| 109 Questions with Complete solutions- Graded A+
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IS 3413 Telecom (Huddleston) Exam 1Review 2023| 109 Questions with
Complete solutions- Graded A+
Circuit - -Connection between networked devices; may include switches/routers.
-Client - -User's network access device; contains presentation, application, and data
access logic
-Server (Host) - -Device that stores & transmits data to clients; contains all the
components
-Local Area Network (LAN) - -Networked computers located in the same general area
-Backbone Network (BN) - -High-speed networks connecting other networks together
-Wide Area Network (WAN) - -Largest geographic scope; spans hundreds or thousands
of miles
-Standards - -Ensure that hardware and software from different vendors work together
-De jure standards - -Formalized by industry or government
e.g. HTTP, IEEE 802.3, 802.11n
-De facto standards - -Widely accepted, but not formalized
e.g. Microsoft Windows
-Protocol - -Specifies the rules, functionality, and messages for communication
-7-layer Open Systems Interconnection (OSI) Model - -
1. Application
2. Presentation
3. Session
4. Transport
5. Network
6. Data Link
7. Physical
-5-layer Internet Model - -
1. Application
2. Transport
3. Network
, 4. Data Link
5. Physical
-Internet Model Layer #5 Application - -User's access to network, software to perform
work
-Internet Model Layer #4 Transport - -End-to-End Management
1. Link app layer to network
2. segmenting & tracking
3. Flow Control
-Internet Model Layer #3 Network - -Deciding where the message goes
1. Addressing
2. Flow Control
-Internet Model Layer #2 Data Link - -Move a message from one device to the next
1. Controls hardware
2. Formats the message
3. Error Checking
-Internet Model Layer #1 Physical - -Transmits the message
-Presentation Logic - -presents data to user and accepts inputs
-Application Logic - -Performs computational functions (often called business logic)
-Data Access Logic - -Accesses specific data (often structured query language, SQL)
-Data Storage - -Storage & retrieval of data (file system logic)
-Client-Server Architecture - -Most common architecture today.
Client: Presentation, some application logic
Server: Some application, data access, and data storage logic
-Middleware - -Software between client & server apps; manages message transfer
-Thick Clients - -More functionality
-Thin Clients - -Easier to manage
-Software as a Service (SaaS) - -All application components and hardware outsourced
-Platform as a Service (PaaS) - -Application logic and data managed internally
-Infrastructure as a Service (IaaS) - -All hardware is outsourced
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