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CompTIA Network+ Test 4

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Question 1 of 20

1. Question
How does Spanning Tree Protocol (STP) stop network loops from occurring on a layer 2 network that includes bridges or switches?
- A.It finds all links by monitoring the network and stops any loops by shutting down redundant ones.
- B.It creates Bridge Protocol Data Units (BPDUs) to stop network loops during an active Layer 2 data transfer session.
- C.Frames are forwarded on regular STP-picked links and are destroyed if they contain redundant loops.
- D.Frames are forwarded on premium STP-picked links and are destroyed if they contain redundant loops.
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Question 2 of 20

2. Question
Joe is configuring the storage area network for iSCSI storage. The ethernet frame size is 1500. When he tests the network, he finds it sluggish when fetching data from iSCSI storage. Which configuration change can be implemented to resolve the network speed issue for iSCSi storage?
- A.Change the Ethernet frame size to 9000
- B.Change the Ethernet frame size to 3000
- C.Decrease latency rates for the Ethernet adapter
- D.Install the latest Ethernet card
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Question 3 of 20

3. Question
Which of the following IEEE standards describes an implementation of port-based access control for wireless networks?
- A.802.11ac
- B.802.11h
- C.802.11n
- D.802.1X
- E.802.3x
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Question 4 of 20

4. Question
How does rate shifting allow access points to support multiple clients at varying speeds depending on each client’s location?
- A.Rate limiting
- B.Collision avoidance
- C.Request to send/Clear to send (RTS/CTS)
- D.Transmission-by-Transmission
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Question 5 of 20

5. Question
Which wireless network technology allows antennas to be spread over a multitude of independent access points without directly affecting the data rates?
- A.Multiple Input, Multiple Output (MIMO)
- B.Quadrature Amplitude Modulation (QAM)
- C.Multiuser Multiple-Input, Multiple-Output (MU-MIMO)
- D.Orthogonal frequency-division multiple access (OFDMA)
Correct

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Question 6 of 20

6. Question
Which wireless AP mode provides more coverage than a single access point, allowing mobile wireless clients to roam freely within the same network?
- A.Basic Service Set Identifier (BSSID)
- B.Extended Service Set Identifier (ESSID)
- C.Multiple Service Set Identifier (MSSID)
- D.Thin access points
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Question 7 of 20

7. Question
You are installing a remote garage door in your home. The device that opens the garage door automatically uses the Z-wave wireless protocol. Which network uses low-energy radio wave to initiate communications between appliances?
- A.Near Field Communication (NFC)
- B.Radio Frequency Identification (RFID)
- C.Mesh network
- D.Star network
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Question 8 of 20

8. Question
Jane is attempting to deploy an IEEE 802.11b/g wireless LAN on the fifth floor of a 10-story oﬃce building surrounded by other oﬃce buildings, all of which seem to be running many wireless LANs. Scanning the 2.4 GHz band, she sees dozens of networks spread across all available channels. As a result, her wireless devices have trouble connecting to their access point (AP), and when they do, they achieve only low speeds. Which of the following tasks should Alice perform to enable the wireless clients to connect to the network more reliably? (Choose two.)
- A.Upgrade all of the wireless network devices to IEEE 802.11n.
- B.Configure all of the network devices to use WPA2 encryption with AES.
- C.Configure the wireless devices to use the 5 GHz band.
- D.Configure the AP to suppress service set identifier (SSID) broadcasts.
- E.Upgrade all of the network devices to the latest firmware.
Correct

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Question 9 of 20

9. Question
Which splash screen is a webpage presented when you connect to a public network as a guest, prompting for a username/password and terms of service that you must agree to before proceeding with the Internet connection?
- A.Captive Portal
- B.Splash Portal
- C.Welcome Page
- D.CAPWAP portal
Correct

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Question 10 of 20

10. Question
Which of the following wireless LAN security protocols do not support using a pre-shared key (PSK) in its Personal configuration?
- A.WEP
- B.WPA
- C.WPA2
- D.WPA3
Correct

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Question 11 of 20

11. Question
Which of the following is NOT the downside of an omnidirectional antenna?
- A.Needs precision when aligning communication points
- B.It needs two multi-directional feed horns.
- C.Needs Yagi direction
- D.It does not require precision when aligning communication points.
Correct

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Question 12 of 20

12. Question
Which wireless access points (WAP) types require the network to include a wireless LAN controller (WLC)?
- A.Lightweight access point
- B.Standalone access point
- C.Autonomous access point
- D.Traﬃc access point
Correct

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Question 13 of 20

13. Question
Which of the following characterizes a central wiring hub, commonly located in a closet, where the horizontal cabling connects with the network backbone?
- A.MDF
- B.MTBF
- C.IDF
- D.SLA
- E.MOU
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Question 14 of 20

14. Question
You are installing a fiber distribution panel during a network installation event. What are the main components of a fiber distribution panel?
- A.Network Interface cards tray and tool drawer
- B.Cable management tray and a splice drawer
- C.Network interface cards tray and a splice drawer
- D.Network hardware tray and a cable management tray
Correct

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Question 15 of 20

15. Question
What is the major difference between standby UPS and line-interactive UPS?
- A.The line-interactive UPS is permanently wired to the load. When a power failure occurs, it transitions the power load to batteries.
- B.The standby UPS is always wired to the load. When a power failure occurs, it switches to an entirely different circuit.
- C.The line-interactive UPS is wired to a circuit. When a power failure occurs, it switches the power to an entirely different circuit.
- D.The standby UPS uses the different online and offline power load circuits.
Correct

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Question 16 of 20

16. Question
How does a Power Distribution Unit (PDU) perform remote management of power metering information, power outlet on/off control, alarm control, and external sensor management?
- A.It uses CPU power to calculate and perform the functions.
- B.It houses a special networking device that performs its functions.
- C.It uses computing power to translate the workload into usable information.
- D.It houses an intelligence module to perform calculate and perform the functions.
Correct

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Question 17 of 20

17. Question
What happens when the air around computing systems in a data center becomes too dry?
- A.It does not affect the systems because dry air allows the circuits to hum smoothly.
- B.It has little effect on the system because dry air can impact the cooling modules of the computing system.
- C.It creates static electricity in the air, making the situation ripe for damaging the systems.
- D.It creates friction between the air and the heat generated from the cooling modules, resulting in sparks that might damage the system.
Correct

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Question 18 of 20

18. Question
You’re managing the cables for the network rack in a data center. What should you do after adding a new cable segment to your network?
- A.Create a report and submit it to the network administrator.
- B.Update the wiring schematics.
- C.Create a new wiring diagram.
- D.Send a picture of the new wire to the network administrator.
Correct

Incorrect
Question 19 of 20

19. Question
Which tools are helpful in planning, tracking, and managing the IP addresses through DNS and DHCP?
- A.Network Despensible Management (NDM)
- B.Topographic IP Address Management (TIAM)
- C.IP Address Management (IPAM)
- D.DHCP and DNS Management (DDM)
Correct

Incorrect
Question 20 of 20

20. Question
Which report uses a heat map to show the wireless coverage areas and is often performed before wireless equipment is purchased?
- A.Site survey report
- B.Logical Network diagrams
- C.Baseline
- D.Physical network diagrams
Correct

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Quiz Summary

Information

Results

Results

Categories

1. Question

How does Spanning Tree Protocol (STP) stop network loops from occurring on a layer 2 network that includes bridges or switches?

2. Question

Joe is configuring the storage area network for iSCSI storage. The ethernet frame size is 1500. When he tests the network, he finds it sluggish when fetching data from iSCSI storage. Which configuration change can be implemented to resolve the network speed issue for iSCSi storage?

3. Question

Which of the following IEEE standards describes an implementation of port-based access control for wireless networks?

4. Question

How does rate shifting allow access points to support multiple clients at varying speeds depending on each client’s location?

5. Question

Which wireless network technology allows antennas to be spread over a multitude of independent access points without directly affecting the data rates?

6. Question

Which wireless AP mode provides more coverage than a single access point, allowing mobile wireless clients to roam freely within the same network?

7. Question

You are installing a remote garage door in your home. The device that opens the garage door automatically uses the Z-wave wireless protocol. Which network uses low-energy radio wave to initiate communications between appliances?

8. Question

9. Question

Which splash screen is a webpage presented when you connect to a public network as a guest, prompting for a username/password and terms of service that you must agree to before proceeding with the Internet connection?

10. Question

Which of the following wireless LAN security protocols do not support using a pre-shared key (PSK) in its Personal configuration?

11. Question

Which of the following is NOT the downside of an omnidirectional antenna?

12. Question

Which wireless access points (WAP) types require the network to include a wireless LAN controller (WLC)?

13. Question

Which of the following characterizes a central wiring hub, commonly located in a closet, where the horizontal cabling connects with the network backbone?

14. Question

You are installing a fiber distribution panel during a network installation event. What are the main components of a fiber distribution panel?

15. Question

What is the major difference between standby UPS and line-interactive UPS?

16. Question

How does a Power Distribution Unit (PDU) perform remote management of power metering information, power outlet on/off control, alarm control, and external sensor management?

17. Question

What happens when the air around computing systems in a data center becomes too dry?

18. Question

You’re managing the cables for the network rack in a data center. What should you do after adding a new cable segment to your network?

19. Question

Which tools are helpful in planning, tracking, and managing the IP addresses through DNS and DHCP?

20. Question

Which report uses a heat map to show the wireless coverage areas and is often performed before wireless equipment is purchased?