CNIT 344 Exam 2 Study Guide with Complete Solutions
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Course
CNIT 344
Institution
CNIT 344
CNIT 344 Exam 2 Study Guide with
Complete Solutions
OSI Layers - Correct Answer️️ -1. Physical
2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application
Layer 3 Provides_________________________ - Correct Answer️️ -globally unique
addressing for every node in ...
What is Layer 4 responsible for? - Correct Answer✔️✔️-Host-to-Host integrity of
transmission, it does this by detecting damaged or lost packets and generates re-
transmit requests and re-sequences packets
Layer 4: Stop and Wait - Correct Answer✔️✔️-forces sender to wait for acknowledgement
and error control is achieved by discarding corrupted packets and letting the sender
resend unacknowledged packets when the timer expires (calculations done in mod 2)
Layer 4: Go-Back-N - Correct Answer✔️✔️-defines the expected order of packets
What do VLANs do? - Correct Answer✔️✔️-Enable multiple LANs on a switch
Do Layer 2 switches forward traffic between VLANs? - Correct Answer✔️✔️-NO
Each VLAN is a separate _______ domain. - Correct Answer✔️✔️-Broadcast
Each VLAN is a separate_____________ - Correct Answer✔️✔️-IP Subnet, you need a
router to communicate among these
Types of VLANs - Correct Answer✔️✔️-Data, Default, Native, Management, Voice
How is VLAN membership assigned? - Correct Answer✔️✔️-By port, MAC address,
Network protocols, IP subnets (L3), higher layer protocols
What is a Trunk? - Correct Answer✔️✔️-A physical AND logical connection, it doesn't
belong to any specific VLAN, and is a conduit between switches & routers and switches
& switches
What does Tagging do? - Correct Answer✔️✔️-Identifies each frame that is transferred
over the trunk
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