CompTIA Network+ N10-009 Transmission Media Transceivers And Connectors Practice Test

 

Objective 1.5 • 20 original questions

This CompTIA Network+ N10-009 practice test focuses on transmission media and transceivers. All questions are original ExamSnap scenarios aligned to the current N10-009 blueprint; they are not copied from CompTIA exam content. Use the complete N10-009 collection for broader practice across all five domains. For broader exam preparation, review the CompTIA Network+ N10-009 Exam Dumps page.

Instructions: Select the best answer for each question. Review the explanation after answering; each distractor includes a reason it is not the best choice for that scenario.

Question 1

At Litware Manufacturing, a systems administrator is reviewing a network change. The requirement is to provide local wireless LAN connectivity. Which option is the best fit? The decision applies to a branch-office rollout.

1. F-type
2. 802.3 Ethernet
3. 802.11 wireless
4. SC connector
5. Cellular

Correct answer: C

Why: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. This directly satisfies the requirement: provide local wireless LAN connectivity.

Option review:

A: F-type threaded coax connectors are common for cable/satellite RF. However, it does not most directly satisfy the requirement in this scenario: provide local wireless LAN connectivity.

B: IEEE 802.3 defines wired Ethernet LAN technologies. However, it does not most directly satisfy the requirement in this scenario: provide local wireless LAN connectivity.

C: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. This directly satisfies the requirement: provide local wireless LAN connectivity.

D: SC is a square push-pull fiber connector. However, it does not most directly satisfy the requirement in this scenario: provide local wireless LAN connectivity.

E: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: provide local wireless LAN connectivity.

Learning point: Use 802.11 wireless when the key requirement is to provide local wireless LAN connectivity.

Question 2

A ticket at Woodgrove Bank says the team must connect mobile or remote devices over a carrier wide-area radio network. Which technology or concept most directly addresses this requirement? The decision applies to a campus refresh.

1. QSFP
2. ST connector
3. Cellular
4. Plenum cable
5. RJ45

Correct answer: C

Why: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. This directly satisfies the requirement: connect mobile or remote devices over a carrier wide-area radio network.

Option review:

A: Quad SFP-family modules aggregate multiple lanes for higher-speed interfaces. However, it does not most directly satisfy the requirement in this scenario: connect mobile or remote devices over a carrier wide-area radio network.

B: ST is a round bayonet-style fiber connector. However, it does not most directly satisfy the requirement in this scenario: connect mobile or remote devices over a carrier wide-area radio network.

C: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. This directly satisfies the requirement: connect mobile or remote devices over a carrier wide-area radio network.

D: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: connect mobile or remote devices over a carrier wide-area radio network.

E: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: connect mobile or remote devices over a carrier wide-area radio network.

Learning point: Use Cellular when the key requirement is to connect mobile or remote devices over a carrier wide-area radio network.

Question 3

During a design meeting at Blue Yonder Airlines, the junior network administrator needs to provide connectivity to geographically isolated sites without terrestrial last-mile service. What should be selected? The decision applies to a data-center segment.

1. SFP
2. ST connector
3. Satellite
4. Plenum cable
5. BNC

Correct answer: C

Why: Satellite links provide connectivity where terrestrial infrastructure may be unavailable, often with higher latency. This directly satisfies the requirement: provide connectivity to geographically isolated sites without terrestrial last-mile service.

Option review:

A: Small form-factor pluggable transceivers provide modular network interfaces, commonly for Ethernet/fiber. However, it does not most directly satisfy the requirement in this scenario: provide connectivity to geographically isolated sites without terrestrial last-mile service.

B: ST is a round bayonet-style fiber connector. However, it does not most directly satisfy the requirement in this scenario: provide connectivity to geographically isolated sites without terrestrial last-mile service.

C: Satellite links provide connectivity where terrestrial infrastructure may be unavailable, often with higher latency. This directly satisfies the requirement: provide connectivity to geographically isolated sites without terrestrial last-mile service.

D: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: provide connectivity to geographically isolated sites without terrestrial last-mile service.

E: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: provide connectivity to geographically isolated sites without terrestrial last-mile service.

Learning point: Use Satellite when the key requirement is to provide connectivity to geographically isolated sites without terrestrial last-mile service.

Question 4

Contoso Health is updating its network standard. Which option best meets the need to deploy standards-based wired Ethernet connectivity? The decision applies to a remote-site migration.

1. RJ11
2. 802.3 Ethernet
3. Cellular
4. BNC
5. ST connector

Correct answer: B

Why: IEEE 802.3 defines wired Ethernet LAN technologies. This directly satisfies the requirement: deploy standards-based wired Ethernet connectivity.

Option review:

A: RJ11-style connectors are associated with telephone/DSL wiring. However, it does not most directly satisfy the requirement in this scenario: deploy standards-based wired Ethernet connectivity.

B: IEEE 802.3 defines wired Ethernet LAN technologies. This directly satisfies the requirement: deploy standards-based wired Ethernet connectivity.

C: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: deploy standards-based wired Ethernet connectivity.

D: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: deploy standards-based wired Ethernet connectivity.

E: ST is a round bayonet-style fiber connector. However, it does not most directly satisfy the requirement in this scenario: deploy standards-based wired Ethernet connectivity.

Learning point: Use 802.3 Ethernet when the key requirement is to deploy standards-based wired Ethernet connectivity.

Question 5

A field technician at Litware Manufacturing is validating a proposed solution. The design must run a high-speed fiber link over a long campus or metro distance. Which answer is most appropriate? The decision applies to a operations lab.

1. Single-mode fiber
2. 802.3 Ethernet
3. RJ45
4. MPO connector
5. RJ11

Correct answer: A

Why: Single-mode fiber supports long distances and high bandwidth with a small core and laser optics. This directly satisfies the requirement: run a high-speed fiber link over a long campus or metro distance.

Option review:

A: Single-mode fiber supports long distances and high bandwidth with a small core and laser optics. This directly satisfies the requirement: run a high-speed fiber link over a long campus or metro distance.

B: IEEE 802.3 defines wired Ethernet LAN technologies. However, it does not most directly satisfy the requirement in this scenario: run a high-speed fiber link over a long campus or metro distance.

C: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: run a high-speed fiber link over a long campus or metro distance.

D: MPO is a multi-fiber push-on connector used for parallel optical links. However, it does not most directly satisfy the requirement in this scenario: run a high-speed fiber link over a long campus or metro distance.

E: RJ11-style connectors are associated with telephone/DSL wiring. However, it does not most directly satisfy the requirement in this scenario: run a high-speed fiber link over a long campus or metro distance.

Learning point: Use Single-mode fiber when the key requirement is to run a high-speed fiber link over a long campus or metro distance.

Question 6

For a new deployment at Woodgrove Bank, the networking team wants to run shorter fiber links within a building or data center at lower optic cost. Which choice most directly satisfies the goal? The decision applies to a production maintenance window.

1. SC connector
2. Multimode fiber
3. Single-mode fiber
4. BNC
5. 802.11 wireless

Correct answer: B

Why: Multimode fiber is common for shorter high-speed links within buildings/data centers. This directly satisfies the requirement: run shorter fiber links within a building or data center at lower optic cost.

Option review:

A: SC is a square push-pull fiber connector. However, it does not most directly satisfy the requirement in this scenario: run shorter fiber links within a building or data center at lower optic cost.

B: Multimode fiber is common for shorter high-speed links within buildings/data centers. This directly satisfies the requirement: run shorter fiber links within a building or data center at lower optic cost.

C: Single-mode fiber supports long distances and high bandwidth with a small core and laser optics. However, it does not most directly satisfy the requirement in this scenario: run shorter fiber links within a building or data center at lower optic cost.

D: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: run shorter fiber links within a building or data center at lower optic cost.

E: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. However, it does not most directly satisfy the requirement in this scenario: run shorter fiber links within a building or data center at lower optic cost.

Learning point: Use Multimode fiber when the key requirement is to run shorter fiber links within a building or data center at lower optic cost.

Question 7

At Blue Yonder Airlines, a systems administrator is reviewing a network change. The requirement is to connect adjacent data-center devices over a short high-speed copper assembly. Which option is the best fit? The decision applies to a new floor deployment.

1. RJ45
2. SC connector
3. QSFP
4. Coaxial cable
5. DAC/twinax

Correct answer: E

Why: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. This directly satisfies the requirement: connect adjacent data-center devices over a short high-speed copper assembly.

Option review:

A: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: connect adjacent data-center devices over a short high-speed copper assembly.

B: SC is a square push-pull fiber connector. However, it does not most directly satisfy the requirement in this scenario: connect adjacent data-center devices over a short high-speed copper assembly.

C: Quad SFP-family modules aggregate multiple lanes for higher-speed interfaces. However, it does not most directly satisfy the requirement in this scenario: connect adjacent data-center devices over a short high-speed copper assembly.

D: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. However, it does not most directly satisfy the requirement in this scenario: connect adjacent data-center devices over a short high-speed copper assembly.

E: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. This directly satisfies the requirement: connect adjacent data-center devices over a short high-speed copper assembly.

Learning point: Use DAC/twinax when the key requirement is to connect adjacent data-center devices over a short high-speed copper assembly.

Question 8

A ticket at Contoso Health says the team must use the cable type associated with broadband cable and F-type/BNC connectors. Which technology or concept most directly addresses this requirement? The decision applies to a service-recovery review.

1. Cellular
2. SC connector
3. Coaxial cable
4. QSFP
5. RJ11

Correct answer: C

Why: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. This directly satisfies the requirement: use the cable type associated with broadband cable and F-type/BNC connectors.

Option review:

A: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: use the cable type associated with broadband cable and F-type/BNC connectors.

B: SC is a square push-pull fiber connector. However, it does not most directly satisfy the requirement in this scenario: use the cable type associated with broadband cable and F-type/BNC connectors.

C: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. This directly satisfies the requirement: use the cable type associated with broadband cable and F-type/BNC connectors.

D: Quad SFP-family modules aggregate multiple lanes for higher-speed interfaces. However, it does not most directly satisfy the requirement in this scenario: use the cable type associated with broadband cable and F-type/BNC connectors.

E: RJ11-style connectors are associated with telephone/DSL wiring. However, it does not most directly satisfy the requirement in this scenario: use the cable type associated with broadband cable and F-type/BNC connectors.

Learning point: Use Coaxial cable when the key requirement is to use the cable type associated with broadband cable and F-type/BNC connectors.

Question 9

During a design meeting at Litware Manufacturing, the junior network administrator needs to install cable in an environmental air-handling plenum while meeting fire/smoke requirements. What should be selected? The decision applies to a branch-office rollout.

1. Multimode fiber
2. Single-mode fiber
3. 802.3 Ethernet
4. F-type
5. Plenum cable

Correct answer: E

Why: Plenum-rated cable uses low-smoke materials for air-handling spaces. This directly satisfies the requirement: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

Option review:

A: Multimode fiber is common for shorter high-speed links within buildings/data centers. However, it does not most directly satisfy the requirement in this scenario: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

B: Single-mode fiber supports long distances and high bandwidth with a small core and laser optics. However, it does not most directly satisfy the requirement in this scenario: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

C: IEEE 802.3 defines wired Ethernet LAN technologies. However, it does not most directly satisfy the requirement in this scenario: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

D: F-type threaded coax connectors are common for cable/satellite RF. However, it does not most directly satisfy the requirement in this scenario: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

E: Plenum-rated cable uses low-smoke materials for air-handling spaces. This directly satisfies the requirement: install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

Learning point: Use Plenum cable when the key requirement is to install cable in an environmental air-handling plenum while meeting fire/smoke requirements.

Question 10

Woodgrove Bank is updating its network standard. Which option best meets the need to use a modular pluggable transceiver in an SFP-capable interface? The decision applies to a campus refresh.

1. Multimode fiber
2. BNC
3. 802.11 wireless
4. Cellular
5. SFP

Correct answer: E

Why: Small form-factor pluggable transceivers provide modular network interfaces, commonly for Ethernet/fiber. This directly satisfies the requirement: use a modular pluggable transceiver in an SFP-capable interface.

Option review:

A: Multimode fiber is common for shorter high-speed links within buildings/data centers. However, it does not most directly satisfy the requirement in this scenario: use a modular pluggable transceiver in an SFP-capable interface.

B: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: use a modular pluggable transceiver in an SFP-capable interface.

C: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. However, it does not most directly satisfy the requirement in this scenario: use a modular pluggable transceiver in an SFP-capable interface.

D: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: use a modular pluggable transceiver in an SFP-capable interface.

E: Small form-factor pluggable transceivers provide modular network interfaces, commonly for Ethernet/fiber. This directly satisfies the requirement: use a modular pluggable transceiver in an SFP-capable interface.

Learning point: Use SFP when the key requirement is to use a modular pluggable transceiver in an SFP-capable interface.

Question 11

A field technician at Blue Yonder Airlines is validating a proposed solution. The design must use a compact multi-lane pluggable module for higher-speed links. Which answer is most appropriate? The decision applies to a data-center segment.

1. RJ11
2. BNC
3. SC connector
4. Plenum cable
5. QSFP

Correct answer: E

Why: Quad SFP-family modules aggregate multiple lanes for higher-speed interfaces. This directly satisfies the requirement: use a compact multi-lane pluggable module for higher-speed links.

Option review:

A: RJ11-style connectors are associated with telephone/DSL wiring. However, it does not most directly satisfy the requirement in this scenario: use a compact multi-lane pluggable module for higher-speed links.

B: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: use a compact multi-lane pluggable module for higher-speed links.

C: SC is a square push-pull fiber connector. However, it does not most directly satisfy the requirement in this scenario: use a compact multi-lane pluggable module for higher-speed links.

D: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: use a compact multi-lane pluggable module for higher-speed links.

E: Quad SFP-family modules aggregate multiple lanes for higher-speed interfaces. This directly satisfies the requirement: use a compact multi-lane pluggable module for higher-speed links.

Learning point: Use QSFP when the key requirement is to use a compact multi-lane pluggable module for higher-speed links.

Question 12

For a new deployment at Contoso Health, the networking team wants to select the square push-pull fiber connector. Which choice most directly satisfies the goal? The decision applies to a remote-site migration.

1. ST connector
2. Coaxial cable
3. Plenum cable
4. SC connector
5. RJ45

Correct answer: D

Why: SC is a square push-pull fiber connector. This directly satisfies the requirement: select the square push-pull fiber connector.

Option review:

A: ST is a round bayonet-style fiber connector. However, it does not most directly satisfy the requirement in this scenario: select the square push-pull fiber connector.

B: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. However, it does not most directly satisfy the requirement in this scenario: select the square push-pull fiber connector.

C: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: select the square push-pull fiber connector.

D: SC is a square push-pull fiber connector. This directly satisfies the requirement: select the square push-pull fiber connector.

E: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: select the square push-pull fiber connector.

Learning point: Use SC connector when the key requirement is to select the square push-pull fiber connector.

Question 13

At Litware Manufacturing, a systems administrator is reviewing a network change. The requirement is to select the compact fiber connector commonly used with SFP modules. Which option is the best fit? The decision applies to a operations lab.

1. DAC/twinax
2. Cellular
3. LC connector
4. Coaxial cable
5. Plenum cable

Correct answer: C

Why: LC is a small-form-factor latch-style fiber connector common on modern optics. This directly satisfies the requirement: select the compact fiber connector commonly used with SFP modules.

Option review:

A: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. However, it does not most directly satisfy the requirement in this scenario: select the compact fiber connector commonly used with SFP modules.

B: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: select the compact fiber connector commonly used with SFP modules.

C: LC is a small-form-factor latch-style fiber connector common on modern optics. This directly satisfies the requirement: select the compact fiber connector commonly used with SFP modules.

D: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. However, it does not most directly satisfy the requirement in this scenario: select the compact fiber connector commonly used with SFP modules.

E: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: select the compact fiber connector commonly used with SFP modules.

Learning point: Use LC connector when the key requirement is to select the compact fiber connector commonly used with SFP modules.

Question 14

A ticket at Woodgrove Bank says the team must select the round bayonet-style fiber connector. Which technology or concept most directly addresses this requirement? The decision applies to a production maintenance window.

1. SFP
2. Cellular
3. Coaxial cable
4. ST connector
5. Plenum cable

Correct answer: D

Why: ST is a round bayonet-style fiber connector. This directly satisfies the requirement: select the round bayonet-style fiber connector.

Option review:

A: Small form-factor pluggable transceivers provide modular network interfaces, commonly for Ethernet/fiber. However, it does not most directly satisfy the requirement in this scenario: select the round bayonet-style fiber connector.

B: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: select the round bayonet-style fiber connector.

C: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. However, it does not most directly satisfy the requirement in this scenario: select the round bayonet-style fiber connector.

D: ST is a round bayonet-style fiber connector. This directly satisfies the requirement: select the round bayonet-style fiber connector.

E: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: select the round bayonet-style fiber connector.

Learning point: Use ST connector when the key requirement is to select the round bayonet-style fiber connector.

Question 15

During a design meeting at Blue Yonder Airlines, the junior network administrator needs to terminate many fiber strands in one high-density parallel-optics connector. What should be selected? The decision applies to a new floor deployment.

1. F-type
2. ST connector
3. BNC
4. MPO connector
5. DAC/twinax

Correct answer: D

Why: MPO is a multi-fiber push-on connector used for parallel optical links. This directly satisfies the requirement: terminate many fiber strands in one high-density parallel-optics connector.

Option review:

A: F-type threaded coax connectors are common for cable/satellite RF. However, it does not most directly satisfy the requirement in this scenario: terminate many fiber strands in one high-density parallel-optics connector.

B: ST is a round bayonet-style fiber connector. However, it does not most directly satisfy the requirement in this scenario: terminate many fiber strands in one high-density parallel-optics connector.

C: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: terminate many fiber strands in one high-density parallel-optics connector.

D: MPO is a multi-fiber push-on connector used for parallel optical links. This directly satisfies the requirement: terminate many fiber strands in one high-density parallel-optics connector.

E: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. However, it does not most directly satisfy the requirement in this scenario: terminate many fiber strands in one high-density parallel-optics connector.

Learning point: Use MPO connector when the key requirement is to terminate many fiber strands in one high-density parallel-optics connector.

Question 16

Contoso Health is updating its network standard. Which option best meets the need to terminate copper Ethernet twisted-pair cabling? The decision applies to a service-recovery review.

1. RJ45
2. 802.11 wireless
3. DAC/twinax
4. BNC
5. SFP

Correct answer: A

Why: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. This directly satisfies the requirement: terminate copper Ethernet twisted-pair cabling.

Option review:

A: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. This directly satisfies the requirement: terminate copper Ethernet twisted-pair cabling.

B: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. However, it does not most directly satisfy the requirement in this scenario: terminate copper Ethernet twisted-pair cabling.

C: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. However, it does not most directly satisfy the requirement in this scenario: terminate copper Ethernet twisted-pair cabling.

D: BNC is a bayonet coax connector used in RF and legacy networking/test applications. However, it does not most directly satisfy the requirement in this scenario: terminate copper Ethernet twisted-pair cabling.

E: Small form-factor pluggable transceivers provide modular network interfaces, commonly for Ethernet/fiber. However, it does not most directly satisfy the requirement in this scenario: terminate copper Ethernet twisted-pair cabling.

Learning point: Use RJ45 when the key requirement is to terminate copper Ethernet twisted-pair cabling.

Question 17

A field technician at Litware Manufacturing is validating a proposed solution. The design must identify the smaller modular connector commonly associated with telephone circuits. Which answer is most appropriate? The decision applies to a branch-office rollout.

1. RJ45
2. Satellite
3. MPO connector
4. RJ11
5. Single-mode fiber

Correct answer: D

Why: RJ11-style connectors are associated with telephone/DSL wiring. This directly satisfies the requirement: identify the smaller modular connector commonly associated with telephone circuits.

Option review:

A: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: identify the smaller modular connector commonly associated with telephone circuits.

B: Satellite links provide connectivity where terrestrial infrastructure may be unavailable, often with higher latency. However, it does not most directly satisfy the requirement in this scenario: identify the smaller modular connector commonly associated with telephone circuits.

C: MPO is a multi-fiber push-on connector used for parallel optical links. However, it does not most directly satisfy the requirement in this scenario: identify the smaller modular connector commonly associated with telephone circuits.

D: RJ11-style connectors are associated with telephone/DSL wiring. This directly satisfies the requirement: identify the smaller modular connector commonly associated with telephone circuits.

E: Single-mode fiber supports long distances and high bandwidth with a small core and laser optics. However, it does not most directly satisfy the requirement in this scenario: identify the smaller modular connector commonly associated with telephone circuits.

Learning point: Use RJ11 when the key requirement is to identify the smaller modular connector commonly associated with telephone circuits.

Question 18

For a new deployment at Woodgrove Bank, the networking team wants to select the threaded coax connector commonly used for cable broadband. Which choice most directly satisfies the goal? The decision applies to a campus refresh.

1. Plenum cable
2. 802.11 wireless
3. 802.3 Ethernet
4. F-type
5. Satellite

Correct answer: D

Why: F-type threaded coax connectors are common for cable/satellite RF. This directly satisfies the requirement: select the threaded coax connector commonly used for cable broadband.

Option review:

A: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: select the threaded coax connector commonly used for cable broadband.

B: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. However, it does not most directly satisfy the requirement in this scenario: select the threaded coax connector commonly used for cable broadband.

C: IEEE 802.3 defines wired Ethernet LAN technologies. However, it does not most directly satisfy the requirement in this scenario: select the threaded coax connector commonly used for cable broadband.

D: F-type threaded coax connectors are common for cable/satellite RF. This directly satisfies the requirement: select the threaded coax connector commonly used for cable broadband.

E: Satellite links provide connectivity where terrestrial infrastructure may be unavailable, often with higher latency. However, it does not most directly satisfy the requirement in this scenario: select the threaded coax connector commonly used for cable broadband.

Learning point: Use F-type when the key requirement is to select the threaded coax connector commonly used for cable broadband.

Question 19

At Blue Yonder Airlines, a systems administrator is reviewing a network change. The requirement is to select a bayonet-style coax connector. Which option is the best fit? The decision applies to a data-center segment.

1. Satellite
2. RJ45
3. Multimode fiber
4. Coaxial cable
5. BNC

Correct answer: E

Why: BNC is a bayonet coax connector used in RF and legacy networking/test applications. This directly satisfies the requirement: select a bayonet-style coax connector.

Option review:

A: Satellite links provide connectivity where terrestrial infrastructure may be unavailable, often with higher latency. However, it does not most directly satisfy the requirement in this scenario: select a bayonet-style coax connector.

B: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: select a bayonet-style coax connector.

C: Multimode fiber is common for shorter high-speed links within buildings/data centers. However, it does not most directly satisfy the requirement in this scenario: select a bayonet-style coax connector.

D: Coax uses a central conductor and shielding and is common in cable broadband/RF systems. However, it does not most directly satisfy the requirement in this scenario: select a bayonet-style coax connector.

E: BNC is a bayonet coax connector used in RF and legacy networking/test applications. This directly satisfies the requirement: select a bayonet-style coax connector.

Learning point: Use BNC when the key requirement is to select a bayonet-style coax connector.

Question 20

During a new floor deployment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies.

1. Plenum cable
2. 802.11 wireless
3. Cellular
4. RJ45
5. DAC/twinax

Correct answer: B

Why: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. This directly satisfies the requirement: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

Option review:

A: Plenum-rated cable uses low-smoke materials for air-handling spaces. However, it does not most directly satisfy the requirement in this scenario: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

B: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies. This directly satisfies the requirement: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

C: Cellular networks provide wide-area mobile connectivity through carrier radio infrastructure. However, it does not most directly satisfy the requirement in this scenario: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

D: RJ45-style 8P8C connectors are used with twisted-pair Ethernet. However, it does not most directly satisfy the requirement in this scenario: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

E: Direct-attach copper/twinax provides short, low-cost high-speed links between nearby network devices. However, it does not most directly satisfy the requirement in this scenario: IEEE 802.11 defines Wi-Fi LAN technologies using radio frequencies..

Learning point: Use 802.11 wireless when the key requirement is to provide local wireless LAN connectivity.