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>> Answers CompTIA N10-009 Real Questions <<
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NEW QUESTION # 91
Which of the following Layer 1 devices is responsible for the termination of fiber-optic connections on an SFP-capable switch?
Answer: C
Explanation:
A transceiver is the correct answer because it is the Layer 1 (Physical Layer) component that physically terminates and converts fiber-optic signals on an SFP-capable switch. In CompTIA Network+ N10-009 objectives, transceivers-such as SFP, SFP+, QSFP, and QSFP+ modules-are explicitly identified as physical interface components that handle signal transmission and reception. These modules convert electrical signals from the switch into optical signals for fiber cabling (and vice versa), enabling communication over different media types and distances.
A modem is also a Layer 1 device, but its purpose is to modulate and demodulate signals for WAN technologies such as DSL or cable-it does not terminate fiber connections on switches. An Ethernet NIC provides network access for end devices like computers and servers and typically terminates copper Ethernet, not modular fiber interfaces on switches. A repeater regenerates and amplifies signals to extend cable distances but does not provide fiber termination or media conversion at a switch port.
According to Network+ standards, SFP transceivers are essential for flexible network design, allowing administrators to select appropriate fiber types (single-mode or multi-mode), wavelengths, and distances while remaining compliant with physical layer requirements.
NEW QUESTION # 92
A network administrator is migrating a domain to a different provider. As part of the onboarding process, the new provider requests domain ownership proof. Which of the following records would the administrator most likely need to create?
Answer: C
Explanation:
The best answer is D. TXT . When a provider asks an administrator to prove ownership of a domain, the most common method is to have the administrator place a specific verification value inside a DNS TXT record .
The provider then checks public DNS for that value. If the expected text is present, it confirms that the person managing the migration has control over the domain's DNS settings.
This matches how TXT records are commonly used in real network environments. They are flexible and can store readable text strings for verification, policy, and security-related purposes. In Network+ study material, TXT records are frequently associated with things like domain validation and email-related configurations such as SPF and other verification mechanisms.
The other record types do not fit this task. An A record maps a hostname to an IPv4 address. A CNAME points one name to another name. A PTR record is used for reverse DNS, mapping an IP address back to a hostname. None of those are typically created just to prove domain ownership during provider onboarding.
The key clue is the phrase "domain ownership proof" , which strongly points to a TXT record .
NEW QUESTION # 93
A network technician notices a device is at EOL. For which of the following should the technician plan?
Answer: B
NEW QUESTION # 94
A network administrator determines that some switch ports have more errors present than expected. The administrator traces the cabling associated with these ports. Which of the following would most likely be causing the errors?
Answer: B
NEW QUESTION # 95
Users are unable to access files on theirdepartment share located on file server 2.
The network administrator has been taskedwith validating routing between networks hosting workstation A and file server 2.
INSTRUCTIONS
Click on each router to review output,identify any issues, and configure theappropriate solution.
If at any time you would like to bring backthe initial state of the simulation, please clickthe Reset All button.
Answer:
Explanation:
See the solution in Explanation.
Explanation:
To validate routing between networks hosting Workstation A and File Server 2, follow these steps:
* Review Routing Tables:
* Check the routing tables of Router A, Router B, and Router C to identify any missing routes.
* Identify Missing Routes:
* Ensure that each router has routes to the networks on which Workstation A and File Server 2 are located.
* Add Static Routes:
* If a route is missing, add a static route to the relevant destination network via the correct interface.
* Routing Table:
Step-by-Step SolutionDetailed Analysis and ConfigurationRouter A:Gateway of last resort is 0.0.0.0 to network 0.0.0.0 S* 0.0.0.0/0 is directly connected, GigabitEthernet3
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.0.4.0/22 is directly connected, GigabitEthernet2
C 10.0.6.0/24 is directly connected, GigabitEthernet2
L 10.0.6.1/32 is directly connected, GigabitEthernet2
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.0/30 is directly connected, GigabitEthernet3
L 172.16.27.1/32 is directly connected, GigabitEthernet3
* Routing Table:
Router B:Gateway of last resort is 0.0.0.0 to network 0.0.0.0
S* 0.0.0.0/0 is directly connected, GigabitEthernet1
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.0.0.0/22 is directly connected, GigabitEthernet1
L 10.0.0.1/32 is directly connected, GigabitEthernet1
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.4/30 is directly connected, GigabitEthernet1
L 172.16.27.5/32 is directly connected, GigabitEthernet1
* Routing Table:
Router C:10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
S 10.0.0.0/22 [1/0] via GigabitEthernet1
S 10.0.4.0/22 [1/0] via GigabitEthernet2
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.27.0/30 is directly connected, GigabitEthernet2
L 172.16.27.2/32 is directly connected, GigabitEthernet2
C 172.16.27.4/30 is directly connected, GigabitEthernet1
L 172.16.27.6/32 is directly connected, GigabitEthernet1
* Install Static Route to 10.0.0.0/22 via 172.16.27.1(assuming Router C's IP is 172.16.27.1):
Configuration Steps:Router A:
Destination Prefix: 10.0.0.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet3
* Install Static Route to 10.0.4.0/22 via 172.16.27.5(assuming Router C's IP is 172.16.27.5):
Router B:
Destination Prefix: 10.0.4.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet1
* Install Static Route to 10.0.6.0/24 via 172.16.27.2(assuming Router A's IP is 172.16.27.2):
Router C:Destination Prefix: 10.0.6.0
Destination Prefix Mask: 255.255.255.0
Interface: GigabitEthernet2
Install Static Route to 10.0.0.0/22 via 172.16.27.1(assuming Router B's IP is 172.16.27.1):
Destination Prefix: 10.0.0.0
Destination Prefix Mask: 255.255.252.0
Interface: GigabitEthernet1
* Router A:
* ip route 10.0.0.0 255.255.252.0 GigabitEthernet3
* Router B:
* ip route 10.0.4.0 255.255.252.0 GigabitEthernet1
* Router C:
* ip route 10.0.6.0 255.255.255.0 GigabitEthernet2
* ip route 10.0.0.0 255.255.252.0 GigabitEthernet1
Summary of Static Routes:These configurations ensure that each router knows the correct paths to reach Workstation A and File Server 2, resolving the connectivity issue.
NEW QUESTION # 96
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