CompTIA CompTIA Certifications N10-009 Questions & Answers

• Question 151:

  Which of the following can support a jumbo frame?

  A. Access point

  B. Bridge

  C. Hub D. Switch

  Correct Answer: D

  Definition of Jumbo Frames:

  uk.co.certification.simulator.questionpool.PList@47d929cb Why Switches Support Jumbo Frames:

  Incompatibility of Other Devices:

  Practical Application:

  References:

  CompTIA Network+ course materials and networking hardware documentation.

• Question 152:

  Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?

  A. Direct Connect

  B. Internet gateway

  C. Captive portal

  D. VPN

  Correct Answer: A

  Direct Connect refers to a dedicated network connection between an on-premises network and a cloud service provider (such as AWS Direct Connect). This link bypasses the public internet, providing a more reliable and higher-bandwidth

  connection. It may not inherently include encryption because it relies on the security measures of the dedicated physical connection itself. In contrast, other options like VPN typically involve encryption as they traverse the public internet.

  Reference:

  CompTIA Network+ full course material indicates that Direct Connect type services offer dedicated, private connections which might not include encryption due to the dedicated and secure nature of the link itself.

• Question 153:

  A support agent receives a report that a remote user's wired devices are constantly disconnecting and have slow speeds. Upon inspection, the support agent sees that the user's coaxial modern has a signal power of -97dB.

  A. Removing any spliters connecte to the line

  B. Switching the devices to wireless

  C. Moving the devices closer to the modern

  D. Lowering the network speed

  Correct Answer: A

  A signal power of -97dB indicates a very weak signal, which can cause connectivity issues and slow speeds. Splitters on a coaxial line can degrade the signal quality further, so removing them can help improve the signal strength and overall

  connection quality.

  Signal Quality: Splitters can reduce the signal strength by dividing the signal among multiple lines, which can be detrimental when the signal is already weak. Direct Connection: Ensuring a direct connection from the modem to the incoming

  line can maximize signal quality and reduce potential points of failure.

  Network References:

  CompTIA Network+ N10-007 Official Certification Guide: Discusses troubleshooting connectivity issues and the impact of signal strength on network performance.

  Cisco Networking Academy: Provides insights on maintaining optimal signal quality in network setups.

  Network+ Certification All-in-One uide: Covers common network issues, including those related to signal degradation and ways to mitigate them.

• Question 154:

  A network administrator is configuring a wireless network with an ESSID. Which of the following is a user benefit of ESSID compared to SSID?

  A. Stronger wireless connection

  B. Roaming between access points

  C. Advanced security

  D. Increased throughput

  Correct Answer: B

  An Extended Service Set Identifier (ESSID) allows multiple access points to share the same SSID, enabling seamless roaming for users. This means that users can move between different access points within the same ESSID without losing connection or having to reauthenticate. This provides a better user experience, especially in large environments such as office buildings or campuses.References: CompTIA Network+ study materials.

• Question 155:

  An administrator is configuring a switch that will be placed in an area of the office that is accessible to customers. Which of the following is the best way for the administrator to mitigate unknown devices from connecting to the network?

  A. SSE

  B. ACL

  C. Perimeter network

  D. 802.1x

  Correct Answer: D

  802.1x is a network access control protocol that provides an authentication mechanism to devices trying to connect to a LAN or WLAN. This ensures that only authorized devices can access the network, making it ideal for mitigating the risk of

  unknown devices connecting to the network, especially in accessible areas. 802.1x Authentication: Requires devices to authenticate using credentials (e.g., username and password, certificates) before gaining network access. Access

  Control: Prevents unauthorized devices from connecting to the network, enhancing security in public or semi-public areas. Implementation: Typically used in conjunction with a RADIUS server to manage authentication requests.

  Network References:

  CompTIA Network+ N10-007 Official Certification Guide: Covers 802.1x and its role in network security.

  Cisco Networking Academy: Provides training on implementing 802.1x for secure network access control.

  Network+ Certification All-in-One uide: Explains the benefits and configuration of 802.1x authentication in securing network access.

• Question 156:

  A network administrator is configuring a new switch and wants to ensure that only assigned devices can connect to the switch.

  Which of the following should the administrator do?

  A. Configure ACLs.

  B. Implement a captive portal.

  C. Enable port security.

  D. Disable unnecessaryservices.

  Correct Answer: C

  Reference: CompTIA Network+ Certification Exam Objectives - Network Security section.

• Question 157:

  Early in the morning, an administrator installs a new DHCP server. In the afternoon, some users report they are experiencing network outages. Which of the following is the most likely issue?

  A. Theadministrator didnot provisionenough IP addresses.

  B. Theadministrator configured an incorrect default gateway.

  C. Theadministrator didnot provisionenough routes.

  D. Theadministrator didnot provisionenough MAC addresses.

  Correct Answer: A

  When a DHCP server is installed and not enough IP addresses are provisioned, users may start experiencing network outages once the available IP addresses are exhausted. DHCP servers assign IP addresses to devices on the network, and if the pool of addresses is too small, new devices or those renewing their lease may fail to obtain an IP address, resulting in network connectivity issues.References: CompTIA Network+ study materials.

• Question 158:

  Which of the following disaster recovery concepts is calculated by dividing the total hours of operation by the total number of units?

  A. MTTR

  B. MTBF

  C. RPO

  D. RTO

  Correct Answer: B

  Introduction to Disaster Recovery Concepts:

  uk.co.certification.simulator.questionpool.PList@2a3b7c97 Mean Time Between Failures (MTBF):

  Example Calculation:

  of the Options:

  Conclusion:

  References:

  CompTIA Network+ guide explaining MTBF, MTTR, RPO, and RTO concepts and their calculations (see page Ref 10How to Use Cisco Packet Tracer).

• Question 159:

  Which of the following is an XML-based security concept that works by passing sensitve information about users, such as log-in information and attributes, to providers.

  A. IAM

  B. MFA

  C. RADIUS

  D. SAML

  Correct Answer: D

  Security Assertion Markup Language (SAML) is an XML-based standard used for exchanging authentication and authorization data between parties, particularly between an identity provider (IdP) and a service provider (SP). SAML is

  commonly used in Single Sign-On (SSO) solutions to pass sensitive user information, such as login credentials and attributes, securely between the identity provider and the service provider. SAML (Security Assertion Markup Language):

  Facilitates web-based authentication and authorization, allowing users to access multiple services with a single set of credentials. XML-based: Uses XML to encode the authentication and authorization data, ensuring secure transmission of

  user information. Identity Federation: Enables secure sharing of identity information across different security domains, making it ideal for enterprise SSO solutions.

  Network References:

  CompTIA Network+ N10-007 Official Certification Guide: Covers authentication protocols, including SAML.

  Cisco Networking Academy: Provides training on identity management and federation technologies.

  Network+ Certification All-in-One uide: Explains SAML and its role in secure identity management and SSO.

• Question 160:

  A VoIP phone is plugged in to a port but cannot receive calls. Which of the following needs to be done on the port to address the issue?

  A. Trunk all VLANs on the port.

  B. Configure the native VLAN.

  C. Tag the traffic to voice VLAN.

  D. Disable VLANs.

  Correct Answer: C

  Understanding VoIP and VLANs:

  uk.co.certification.simulator.questionpool.PList@478d11 Tagging Traffic to Voice VLAN:

  Comparison with Other Options:

  Implementation:

  References:

  CompTIA Network+ study materials on VLAN configuration and VoIP implementation.