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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam (N10-009) |
| Exam Number: | N10-009 |
| Exam Duration: | 90 minutes |
| Available Languages: | Japanese, Spanish, Portuguese, Thai, German, English |
| Passing Score: | 720 (on a scale of 100-900) |
| Exam Format: | Multiple-response, Performance-based questions, Multiple-choice |
| Related Certifications: | CompTIA Security+ CompTIA A+ |
| Real Exam Qty: | Up to 90 |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD 358 (varies by region) |
| Recommended Training: | CertMaster Learn for Network+ CompTIA Network+ Training (Official) |
| Exam Registration: | CompTIA Official Certification Page Pearson VUE Exam Registration |
| Sample Questions: | CompTIA N10-009 Sample Questions |
| Exam Way: | Online proctored or test center (Pearson VUE) |
| Pre Condition: | No mandatory prerequisites, but CompTIA A+ or equivalent knowledge is recommended |
| Official Syllabus URL: | https://www.comptia.org/certifications/network |
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NEW QUESTION # 163
A technician is setting up DNS records on local servers for the company's cloud DNS to enable access by hostname. Which of the following records should be used?
Answer: D
Explanation:
A CNAME record is a type of DNS record that maps a hostname to another hostname. This is useful when you want to use a different hostname for a server than its actual IP address.
In this case, the technician is setting up DNS records on local servers for the company's cloud DNS to enable access by hostname. This means that the users will be able to access the servers by their hostnames, instead of their IP addresses.
To do this, the technician needs to create a CNAME record for each server. The CNAME record will point the hostname to the server's IP address.
NEW QUESTION # 164
A network engineer is completing a new VoIP installation, but the phones cannot find the TFTP server to download the configuration files. Which of the following DHCP features would help the phone reach the TFTP server?
Answer: D
Explanation:
DHCP Options: DHCP options allow additional configuration parameters, such as the address of a TFTP server, to be provided to clients during the DHCP lease process. This is essential for VoIP phones to locate the server for configuration files.
Exclusions (A): Prevents certain IP addresses from being assigned by DHCP but does not direct devices to servers.
Lease time (B): Determines how long an IP address is assigned but does not impact TFTP settings.
Scope (D): Defines a range of IP addresses but does not include additional server information.
NEW QUESTION # 165
Which of the following concepts describes the idea of housing different customers in the same public cloud data center?
Answer: B
Explanation:
Comprehensive and Detailed Explanation (aligned to N10-009):
Multitenancy is a cloud concept where multiple customers share the same physical resources (servers, storage, and networks) but remain logically separated for security and privacy.
A . Elasticity is auto-scaling resources.
B . Hybrid cloud combines private and public resources.
C . Scalability is the ability to grow resources but doesn't imply multiple customers.
Reference (CompTIA Network+ N10-009):
NEW QUESTION # 166
Two network switches at different locations are connected via fiber-optic cable at a distance of 10 miles (16 km). The duplex fiber-optic patch cord between the patch panel and switch is accidentally pinched, stopping connectivity between the two switches. A network technician replaces the broken cable with a new, single- mode patch cord. However, connectivity between both switches is still down and the link lights are still off.
Which of the following actions should the technician perform first?
Answer: C
Explanation:
Fiber connections require Tx on one end to connect to Rx on the other end. If the patch cord is replaced and link lights remain off, the most common cause is that the connectors are reversed. Swapping (transposing) the connectors ensures proper transmit/receive alignment.
A). Replacing the transceiver may eventually be necessary, but only after verifying correct connections.
B). Restarting the switchport won't resolve a physical misconnection.
D). Using multimode fiber would be incorrect here, as the link was designed for single-mode (10 miles/16 km requires SMF).
References (CompTIA Network+ N10-009):
Domain: Network Troubleshooting - Fiber connectivity, Tx/Rx alignment, link light diagnostics.
NEW QUESTION # 167
Which of the following attacks would most likely cause duplicate IP addresses in a network?
Answer: A
Explanation:
* Definition of a Rogue DHCP Server:
* A rogue DHCP server is an unauthorized DHCP server on a network, which can assign IP addresses to devices without proper control, leading to IP address conflicts.
* Impact of a Rogue DHCP Server:
* IP Address Conflicts: Multiple devices may receive the same IP address from different DHCP servers, causing network connectivity issues.
* Network Disruption: Devices may be assigned incorrect network configuration settings, disrupting network services and connectivity.
* Comparison with Other Attacks:
* DNS poisoning: Alters DNS records to redirect traffic to malicious sites, but does not cause IP address conflicts.
* Social engineering: Involves manipulating individuals to gain unauthorized access or information, not directly related to IP address conflicts.
* Denial-of-service (DoS): Floods a network or service with excessive traffic to disrupt operations, but does not cause duplicate IP addresses.
* Prevention and Detection:
* Implement network access control measures to prevent unauthorized devices from acting as DHCP servers.
* Use DHCP snooping on switches to allow DHCP responses only from authorized DHCP servers.
NEW QUESTION # 168
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