CompTIA Network+ Certification (N10-003) Part 8

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Nevermore42
N
Nevermore42
Community Contributor
Quizzes Created: 23 | Total Attempts: 6,351
| Attempts: 128
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/30 Questions

    Which layer of the OSI reference model is responsible for session creation?

    • Transport
    • Session
    • Presentation
    • Application
Please wait...
About This Quiz


30 CompTIA Network+ questions covering MAC addressing and the OSI model.

CompTIA Network+ Certification (N10-003) Part 8 - Quiz

Quiz Preview

  • 2. 

    You are a working as a technician and your boss asks you to clarify the difference between routers and switches.  You tell him that switches work at the Data Link Layer of the OSI model while routers work at the _____.

    • Physical layer

    • Data Link layer

    • Network layer

    • Application layer

    Correct Answer
    A. Network layer
    Explanation
    The Network Layer of the OSI model is responsible for end-to-end delivery of data packets. This includes routing and can include packet filtering.

    Rate this question:

  • 3. 

    At which layer of the OSI reference model does a router operate?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Network
    Explanation
    The Network Layer of the OSI ensures that the data arrives at the correct destination. As such, it concerned with network addressing and routing. A router is responsible for routing and functions at the Network Layer.

    Rate this question:

  • 4. 

    The MAC address f2:a1:23:bc:d3:41 consists of a manufacturer ID and a station ID.  Which three bytes represents the manufacturer identifier, also known as the Organizationally Unique Identifer (OUI)?

    • F2:a1:23

    • A1:23:bc

    • 23:bc:d3

    • Bc:d3:41

    Correct Answer
    A. F2:a1:23
    Explanation
    A MAC address consists of two parts: an Organizationally Unique Identifier (OUI) which is administered by the IEEE and uniquely identifies the manufacturer of the interface; and a device ID which identifies the interface. The first three sets of digits represents the OUI while the last three digits represents the device ID.

    Rate this question:

  • 5. 

    Which of the following operate at the Network Layer?

    • Hubs

    • Routers

    • Switches

    • Wireless Access Points

    Correct Answer
    A. Routers
    Explanation
    Routers are responsible for the efficient routing of network traffic in an internetwork. As routing occurs at the Network Layer (Layer 3), routers are Layer 3 devices.

    Rate this question:

  • 6. 

    At which layer of the OSI reference model does routing occur?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Network
    Explanation
    The Network Layer of the OSI ensures that the data arrives at the correct destination. As such, it is concerned with network addressing and routing

    Rate this question:

  • 7. 

    Which of the following operate at the Data Link Layer of the OSI?

    • Bridges, switches and wireless access points

    • Wireless access points and routers

    • Bridges, switches and routers

    • Network interface cards

    Correct Answer
    A. Bridges, switches and wireless access points
    Explanation
    Bridges, switches and wireless access points all operate at the Data Link Layer of the OSI which is Layer 2.

    Rate this question:

  • 8. 

    At which layer of the OSI reference model does a hub operate?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Physical
    Explanation
    The Physical Layer of the OSI is concerned with the physical elements of the network. This includes the transmission medium, the physical topology, the voltage, signal direction and signal strength. Hubs merely retransmit data and thus operate at the Physical Layer (Layer 1) of the OSI reference model.

    Rate this question:

  • 9. 

    Which of the following is responsible for resolving an IP address to a MAC address?

    • ARP

    • DNS

    • DHCP

    • WINS

    Correct Answer
    A. ARP
    Explanation
    The Address Resolution Protocol (ARP) resolves an IP address to the MAC address. The MAC address is a Data Link Layer address that is embedded in a ROM on the network device and is hard-coded to each network interface.

    Rate this question:

  • 10. 

    Which of the following operate at the Physical Layer?

    • Hubs

    • Routers

    • Switches

    • Wireless Access Points

    Correct Answer
    A. Hubs
    Explanation
    Hubs merely retransmit data and thus operate at the Physical Layer (Layer 1) of the OSI reference model.

    Rate this question:

  • 11. 

    A trainee asks you what the OSI layer where digital data is converted into electronic signals to be put on a wire is called.  How do you answer?

    • The Physical Layer

    • The Transport Layer

    • The Data Link Layer

    • The Presentation Layer

    Correct Answer
    A. The Physical Layer
    Explanation
    The Physical Layer of the OSI is concerned with the physical elements of the network. This includes the transmission medium and physical topology. One of the functions of the Physical layer is signal encoding, which is the translation of data into electronic signals that can be transmitted on a transmission medium.

    Rate this question:

  • 12. 

    Which layer of the OSI reference model is concerned with network addressing?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Network
    Explanation
    The Network Layer of the OSI ensures that the data arrives at the correct destination. As such, it is concerned with network addressing and routing.

    Rate this question:

  • 13. 

    Which of the following operate at the upper three layers of the OSI model?

    • Routers

    • Switches

    • Gateways

    • Wireless Access Points

    Correct Answer
    A. Gateways
    Explanation
    A gateway is used to connect two dissimilar networks. It operates at all the layers of the OSI.

    Rate this question:

  • 14. 

    Which of the following statements regarding the OSI reference model is false?

    • One of the functions of the Physical Layer is signal encoding, which is the translation of data into electronic signals that can be transmitted on a transmission medium

    • The Data Link Layer is concerned with getting data across a particular link or medium and defines delivery across an individual link

    • The Network Layer of the OSI is responsible for the establishment, maintenance and breaking of sessions

    • The Transport Layer of the OSI is concerned about the structure of messages and the validity of transmissions

    Correct Answer
    A. The Network Layer of the OSI is responsible for the establishment, maintenance and breaking of sessions
    Explanation
    The Network Layer of the OSI ensures that the data arrives at the correct destination. As such, it is concerned with network addressing and routing, not session management. The Session Layer is concerned with the establishment, maintenance and breaking of sessions.

    Rate this question:

  • 15. 

    The MAC address f2:a1:23:bc:d3:41 consists of a manufacturer ID and a station ID.  Which three bytes represents the station identifier?

    • F2:a1:23

    • A1:23:bc

    • 23:bc:d3

    • Bc:d3:41

    Correct Answer
    A. Bc:d3:41
    Explanation
    A MAC address consists of two parts: an Organizationally Unique Identifier (OUI) which is administered by the IEEE and uniquely identifies the manufacturer of the interface; and a device ID which identifies the interface. The first three sets of digits represents the OUI while the last three digits represents the device ID.

    Rate this question:

  • 16. 

    Which of the following statements regarding the OSI reference model is true?

    • The Transport Layer of the OSI model defines several standard network services, as well as the interface between the network and application

    • The Session Layer of the OSI model is responsible for establishing, maintaining and breaking sessions

    • The Presentation Layer of the OSI model defines the choice of protocols, provides error recovery and flow control

    • The Application Layer of the OSI model converts the data from the lower layers into a format that the upper-layer processes require

    Correct Answer
    A. The Session Layer of the OSI model is responsible for establishing, maintaining and breaking sessions
    Explanation
    The Session Layer of the OSI model is responsible for establishing, maintaining and breaking sessions.

    Rate this question:

  • 17. 

    At which layer of the OSI reference model does data encryption occur?

    • Transport

    • Session

    • Presentation

    • Application

    Correct Answer
    A. Presentation
    Explanation
    The Presentation Layer of the OSI model converts the data from the lower layers into a format that the upper-layer processes require. In addition, the Presentation Layer also provides encryption, data compression and character-set translation which is also called code conversion.

    Rate this question:

  • 18. 

    At which layer of the OSI reference model does character-set translation occur?

    • Transport

    • Session

    • Presentation

    • Application

    Correct Answer
    A. Presentation
    Explanation
    The Presentation Layer of the OSI model converts the data from the lower layers into a format that the upper-layer processes require. In addition, the Presentation Layer also provides encryption, data compression and character-set translation which is also called code conversion.

    Rate this question:

  • 19. 

    You need a networking device that operates at the three uppermost layers of the OSI model and that can connect networks with different architectures.  Which of the following would accomplish this?

    • Router

    • Firewall

    • Modem

    • Gateway

    Correct Answer
    A. Gateway
    Explanation
    A gateway is used to connect two dissimilar networks. It operates at all the layers of the OSI.

    Rate this question:

  • 20. 

    A developer asks you which of the OSI layers that is responsible for translating from application to network, formatting and code conversations.  How would you answer?

    • The Transport Layer

    • The Data Link Layer

    • The Application Layer

    • The Presentation Layer

    Correct Answer
    A. The Presentation Layer
    Explanation
    The Presentation Layer of the OSI model converts the data from the lower layers into a format that the upper-layer processes require. In addition, the Presentation Layer also provides encryption, data compression and character-set translation which is also called code conversion.

    Rate this question:

  • 21. 

    You are asked to identify two devices classified as Layer 2.  Which would you select?

    • Switches and routers

    • Switches and bridges

    • Switches and NICs

    • Hubs and switches

    Correct Answer
    A. Switches and bridges
    Explanation
    Switches and bridges operate at the Data Link Layer of the OSI and are thus Layer 2 devices.

    Rate this question:

  • 22. 

    At which layer of the OSI reference model does data compression occur?

    • Transport

    • Session

    • Presentation

    • Application

    Correct Answer
    A. Presentation
    Explanation
    The Presentation Layer of the OSI model converts the data from the lower layers into a format that the upper-layer processes require. In addition, the Presentation Layer also provides encryption, data compression and character-set translation which is also called code conversion.

    Rate this question:

  • 23. 

    At which layers of the OSI reference model does packet filtering occur?

    • Physical and Data Link

    • Data Link and Network

    • Data Link and Transport

    • Network and Transport

    Correct Answer
    A. Network and Transport
    Explanation
    The Network Layer of the OSI model is responsible for end-to-end delivery of data packets. This includes routing and can include packet filtering. The Transport Layer of the OSI model is responsible for several functions, including the choice of protocols, error recovery and flow control and reordering of the incoming data stream. Through flow control, packet filtering can be implemented

    Rate this question:

  • 24. 

    At which layer of the OSI reference model does error recovery and flow control occur?

    • Transport

    • Session

    • Presentation

    • Application

    Correct Answer
    A. Transport
    Explanation
    The Transport Layer of the OSI model defines several functions, including the choice of protocols, error recovery and flow control

    Rate this question:

  • 25. 

    You are working as a senior network technician.  One of your trainees asks you to clarify at which Open Systems Interconnect (OSI) layers a packet filtering firewall operates.  How do you answer?

    • Network and Data Link

    • Network and Transport

    • Transport and Session

    • Physical and Data Link

    Correct Answer
    A. Network and Transport
    Explanation
    The Network Layer of the OSI model is responsible for end-to-end delivery of data packets. This includes routing and can include packet filtering. The Transport Layer of the OSI model is responsible for several functions including the choice of protocols, error recovery and flow control and the reordering of the incoming data stream. Through flow control, packet filtering can be implemented.

    Rate this question:

  • 26. 

    Which layer of the OSI reference model is responsible for signal encoding?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Physical
    Explanation
    The Physical Layer of the OSI is concerned with the physical elements of the network. This includes the transmission medium and physical topology. One of the functions of the Physical Layer is signal encoding, which is the translation of data into electronic signals that can be transmitted on a transmission medium.

    Rate this question:

  • 27. 

    Which layer of the OSI reference model defines data delivery across an individual link?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Data Link
    Explanation
    The Data Link Layer of the OSI is concerned with getting data across a particular link or medium and defines delivery across an individual link

    Rate this question:

  • 28. 

    Which of the following operate at the Data Link Layer? (choose all that apply)

    • Hubs

    • Routers

    • Switches

    • Wireless Access Points

    Correct Answer(s)
    A. Switches
    A. Wireless Access Points
    Explanation
    Both switches and Wireless Access Points (WAPs) use MAC addresses to filter traffic. As MAC addressing is performed at the Data Link layer (Layer 2), both switches and WAPs are Layer 2 devices.

    Rate this question:

  • 29. 

    Which of the following do not operate at Layer 2 of the OSI? (choose all that apply)

    • Bridges

    • Routers

    • Switches

    • Wireless Access Points

    • Network Interface Cards

    Correct Answer(s)
    A. Routers
    A. Network Interface Cards
    Explanation
    Routers operate at Layer 3 while Network Interface Cards operate at Layer 1.

    Rate this question:

  • 30. 

    Which of the following is responsible for resolving MAC address to an IP address

    • ARP

    • DNS

    • RARP

    • WINS

    Correct Answer
    A. RARP
    Explanation
    Reverse ARP resolves a MAC address to an IP address. The MAC address is a Data Link Layer address that is embedded in a ROM on the network device and is hard-coded to each network interface.

    Rate this question:

Quiz Review Timeline (Updated): Apr 23, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 23, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 11, 2010
    Quiz Created by
    Nevermore42

Recent Quizzes

Exam Cram 1: CompTIA Network+ N10-005 Exam Cram 1: CompTIA Network+ N10-005
Network+ Chapter 2 Quiz Network+ Chapter 2 Quiz
CompTIA Network+ Certification! Hardest Trivia Quiz CompTIA Network+ Certification! Hardest Trivia Quiz
Network+ quiz C Network+ quiz C
Network+ (N10-004) quiz J Network+ (N10-004) quiz J
Network+ (N10-004) quiz I Network+ (N10-004) quiz I
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.