Networking Fundamentals: Key Concepts and Protocols

Posted on Dec 11, 2024 in Computers

Chapter 2: Networking Fundamentals

1. What Can Be Identified by Examining the Network Layer Header?

  • 1. The target device in the local media.
  • 2. Path to use to reach the destination host.
  • 3. Bits to be transferred on the media.
  • 4. Source application or process creating the data.

2. Refer to the Exhibit. What Type of Network Is Shown?

  • 1. WAN
  • 2. MAN
  • 3. LAN
  • 4. WLAN

3. What Is the Purpose of the TCP/IP Layer Network Access?

  • 1. Path determination and packet switching.
  • 2. Representation, coding, and control.
  • 3. Reliability, flow control, and error detection.
  • 4. Detailing the components that make up the physical link and how to access it.
  • 5. The division of segments into packets.

4. What Is the Correct Order of the Layers of the OSI Model, from Highest to Lowest Layer?

  • 1. Physical, network, application, data link, presentation, session, transport.
  • 2. Application, physical, session, transport, network, data link, presentation.
  • 3. Application, presentation, physical, session, data link, transport, network.
  • 4. Application, presentation, session, transport, network, data link, physical.
  • 5. Presentation, data link, session, transport, network, physical, application.

5. What Is a PDU?

  • 1. The corruption of a frame during transmission.
  • 2. Mount data in the destination.
  • 3. Back packages due to loss of communication.
  • 4. A layer of concrete encapsulation.

6. During the Encapsulation Process, What Happens in the Data Link Layer?

  • 1. No address is added.
  • 2. The logical address is added.
  • 3. The physical address is added.
  • 4. The process is the port number added.

7. What Are the Key Functions of Encapsulation? (Choose Three)

  • 1. Enables the modification of the original data before transmission.
  • 2. Identifies pieces of data as part of the same communication.
  • 3. Enables consistent network paths for communication.
  • 4. Ensures that data pieces can be directed to the correct final device.
  • 5. Allows complete messages.
  • 6. Tracks delay between end devices.

8. Refer to the Exhibit. What Term Describes the Interlocking Process of Data Represented in the Graph?

  • 1. Pipe
  • 2. PDU
  • 3. Streaming
  • 4. Multiplexing
  • 5. Encapsulation

9. What Is the Primary Purpose of Layer 4 Port Assignment?

  • 1. To identify the local media.
  • 2. To identify the hops between source and destination.
  • 3. To identify the intermediary devices and the best path through the network.
  • 4. To identify the origin and final destination are communication devices.
  • 5. To identify the processes or services that are communicated within the end devices.

10. What Device Is Considered an Intermediary Device?

  • 1. File server
  • 2. IP Phone
  • 3. Portable
  • 4. Printer
  • 5. Switch

11. Which Characteristic Correctly Refers to End Devices on a Network?

  • 1. Manage data flows.
  • 2. Originating data flow.
  • 3. Retime and retransmit data signals.
  • 4. Determining data paths.

12. Select the Statements That Are Correct Concerning Network Protocols. (Choose Three)

  • 1. Define the structure of layer-specific PDU.
  • 2. Dictate how to accomplish layer functions.
  • 3. Describe the functions necessary for communications between layers.
  • 4. Compatible hardware limit.
  • 5. Require layer-dependent encapsulations.
  • 6. Eliminate standardization among vendors.

13. Refer to the Exhibit. “Cell A” at IP Address 10.0.0.34 Has Established a Session with “IP Phone 1” at IP Address 172.16.1.103. Based on the Graph, What Type of Device Best Describes the Function of Wireless Device “Cell A?”

  • 1. The target device.
  • 2. End device.
  • 3. An intermediate device.
  • 4. Media device.

14. What Is a Primary Function of the Trailer Information Added by the Data Link Layer Encapsulation?

  • 1. Based error detection.
  • 2. Ensures the orderly arrival of data.
  • 3. Provides delivery to correct destination.
  • 4. Identifies devices on the local network.
  • 5. Assists intermediary devices with processing and path selection.

15. Which Layer Encapsulates the Segment into Packets?

  • 1. Physical
  • 2. Data Link
  • 3. Network
  • 4. Transport

16. Refer to the Exhibit. What Term Correctly Identifies the Device Type That Is Included in the Green Area?

  • 1. Source
  • 2. Final
  • 3. Transfer
  • 4. Intermediary

17. Refer to the Exhibit. Which Three Labels Correctly Identify Different Types of Networks for Network Segments That Are Displayed? (Choose Three)

  • 1. Red A – WAN
  • 2. Network B – WAN
  • 3. Network C – LAN
  • 4. Network B – MAN
  • 5. Network C – WAN
  • 6. Network A – LAN

18. Which Two Layers of the OSI Model Have the Same Functions as the TCP/IP Model Layer Network Access? (Choose Two)

  • 1. Red
  • 2. Transport
  • 3. Physical
  • 4. Data Link
  • 5. Session

19. Refer to the Exhibit. What Set of Devices Contains Only End Devices?

  • 1. A, C, D
  • 2. B, E, G, H
  • 3. C, D, G, H, I, J
  • 4. D, E, F, H, I, J
  • 5. E, F, H, I, J

20. Which Three Statements Best Describe a Local Area Network (LAN)? (Choose Three)

  • 1. A LAN is usually in a single geographical area.
  • 2. The network is administered by a single organization.
  • 3. The connection between the segments of the LAN is usually through a leased connection.
  • 4. The security and access control of the network are controlled by a service provider.
  • 5. A LAN provides network services and access to applications for users within a common organization.
  • 6. Each end of the network is generally connected to a telecommunication service provider (TSP).