Practice Free N10-009 Exam Online Questions
Question #151
Which of the following is a cost-effective advantage of a split-tunnel VPN?
- A . Web traffic is filtered through a web filter.
- B . More bandwidth is required on the company’s internet connection.
- C . Monitoring detects insecure machines on the company’s network.
- D . Cloud-based traffic flows outside of the company’s network.
Correct Answer: D
D
Explanation:
A split-tunnel VPN allows certain traffic (e.g., cloud-based services) to bypass the VPN and go directly to the Internet. This reduces the amount of traffic that needs to traverse the company’s VPN and Internet connection, conserving bandwidth and reducing costs. It also means that not all traffic is subject to the same level of inspection or filtering, which can improve performance for cloud-based services.
Reference: CompTIA Network+ study materials.
D
Explanation:
A split-tunnel VPN allows certain traffic (e.g., cloud-based services) to bypass the VPN and go directly to the Internet. This reduces the amount of traffic that needs to traverse the company’s VPN and Internet connection, conserving bandwidth and reducing costs. It also means that not all traffic is subject to the same level of inspection or filtering, which can improve performance for cloud-based services.
Reference: CompTIA Network+ study materials.
Question #152
A newly opened retail shop uses a combination of new tablets, PCs, printers, and legacy card readers.
Which of the following wireless encryption types is the most secure and compatible?
- A . WPA3
- B . WPA2
- C . WPA2/WPA3 mixed mode
- D . WPA/WPA2 mixed mode
Correct Answer: C
C
Explanation:
WPA2/WPA3 mixed mode provides compatibility for older devices (that only support WPA2) while allowing newer devices to take advantage of stronger WPA3 encryption. This ensures maximum compatibility and security in a mixed-device environment.
C
Explanation:
WPA2/WPA3 mixed mode provides compatibility for older devices (that only support WPA2) while allowing newer devices to take advantage of stronger WPA3 encryption. This ensures maximum compatibility and security in a mixed-device environment.
Question #153
Which of the following is the best way to reduce the likelihood of electrostatic discharge?
- A . Uninterruptible power supply
- B . Surge protector
- C . Power distribution units
- D . Temperature and humidity control
Correct Answer: D
D
Explanation:
Temperature and humidity controlis the best way to reduce the risk of electrostatic discharge (ESD). Dry environments significantly increase the likelihood of static buildup, which can discharge and damage sensitive components. By controlling humidity, the environment becomes less prone to static electricity.
Reference: Section 2.4 C Important Factors of Physical Installations C “Environmental Considerations”
D
Explanation:
Temperature and humidity controlis the best way to reduce the risk of electrostatic discharge (ESD). Dry environments significantly increase the likelihood of static buildup, which can discharge and damage sensitive components. By controlling humidity, the environment becomes less prone to static electricity.
Reference: Section 2.4 C Important Factors of Physical Installations C “Environmental Considerations”
Question #154
Which of the following is the most likely benefit of installing server equipment in a rack?
- A . Simplified troubleshooting process
- B . Decreased power consumption
- C . Improved network performance
- D . Increased compute density
Correct Answer: D
D
Explanation:
Installing server equipment in a rack increases compute density by allowing multiple servers to be organized efficiently in a vertical configuration, saving space while housing more devices in a smaller footprint. This is critical for data centers and businesses with high hardware demands.
Simplified troubleshooting process (A): While racks can aid in organizing equipment, this is a secondary benefit, not the primary purpose.
Decreased power consumption (B): Rack installation does not directly reduce power usage; equipment power consumption remains the same.
Improved network performance (C): Racking servers does not inherently improve network performance; that depends on network configurations.
Reference: CompTIA Network+ Official Study Guide, Domain 1.3 (Rack Installations).
D
Explanation:
Installing server equipment in a rack increases compute density by allowing multiple servers to be organized efficiently in a vertical configuration, saving space while housing more devices in a smaller footprint. This is critical for data centers and businesses with high hardware demands.
Simplified troubleshooting process (A): While racks can aid in organizing equipment, this is a secondary benefit, not the primary purpose.
Decreased power consumption (B): Rack installation does not directly reduce power usage; equipment power consumption remains the same.
Improved network performance (C): Racking servers does not inherently improve network performance; that depends on network configurations.
Reference: CompTIA Network+ Official Study Guide, Domain 1.3 (Rack Installations).
Question #155
A network technician is troubleshooting the connection to the company website. The traceroute command produces the following output:
Traceroute to www.mysite.com (8.8.8.8) over a maximum of 30 hops 10.1.1.1 <1 ms 2. * <1 ms <1 ms
k k
k kTraceroute complete
Which of the following should the technician do to identify the path to the server?
- A . Review the router’s ACL.
- B . Execute netstat.
- C . Perform an nslookup.
- D . Enable LLDP.
Correct Answer: C
C
Explanation:
When traceroute shows asterisks (timeouts) instead of IP addresses or hostnames, it may indicate that intermediate routers are dropping ICMP packets. However, performing an nslookup will reveal the IP address associated with the domain name, confirming that DNS resolution is correct and helping identify the path to the target server.
The document states:
“nslookup is used to query DNS servers to retrieve IP address information associated with a domain name, which helps confirm DNS resolution is working correctly even when traceroute results show timeouts.”
C
Explanation:
When traceroute shows asterisks (timeouts) instead of IP addresses or hostnames, it may indicate that intermediate routers are dropping ICMP packets. However, performing an nslookup will reveal the IP address associated with the domain name, confirming that DNS resolution is correct and helping identify the path to the target server.
The document states:
“nslookup is used to query DNS servers to retrieve IP address information associated with a domain name, which helps confirm DNS resolution is working correctly even when traceroute results show timeouts.”
Question #156
Which of the following is an XML-based security concept that works by passing sensitive information about users, such as login information and attributes, to providers?
- A . IAM
- B . MFA
- C . RADIUS
- D . SAML
Correct Answer: D
D
Explanation:
The correct answer is SAML (Security Assertion Markup Language). SAML is an XML-based standard used for single sign-on (SSO) and identity federation. It allows identity providers (IdPs) to share authentication and authorization data with service providers (SPs), passing secure tokens containing user attributes and credentials.
D
Explanation:
The correct answer is SAML (Security Assertion Markup Language). SAML is an XML-based standard used for single sign-on (SSO) and identity federation. It allows identity providers (IdPs) to share authentication and authorization data with service providers (SPs), passing secure tokens containing user attributes and credentials.
Question #157
Which of the following most likely determines the size of a rack for installation? (Select two).
- A . KVM size
- B . Switch depth
- C . Hard drive size
- D . Cooling fan speed
- E . Outlet amperage
- F . Server height
Correct Answer: B
B
Explanation:
Understanding Rack Size Determination:
The size of a rack for installation is determined by the dimensions of the equipment to be housed in it, primarily focusing on the depth and height of the devices.
Switch Depth:
Depth of Equipment: The depth of network switches and other rack-mounted devices directly influences the depth of the rack. If the equipment is deeper, a deeper rack is required to accommodate it.
Industry Standards: Most racks come in standard depths, but it is essential to match the depth of the rack to the deepest piece of equipment to ensure proper fit and airflow.
Server Height:
Height of Equipment: The height of servers and other devices is measured in rack units (U), where 1U equals 1.75 inches. The total height of all equipment determines the overall height requirement of the rack.
Rack Units: A rack’s height is typically described in terms of the number of rack units it can accommodate, such as 42U, 48U, etc.
Why Other Options are Less Relevant:
KVM Size: While important for management, KVM (Keyboard, Video, Mouse) switches do not typically determine rack size.
Hard Drive Size: Individual hard drives are installed within servers or storage devices, not directly influencing rack dimensions.
Cooling Fan Speed: Fan speed affects cooling but not the physical size of the rack.
Outlet Amperage: Power requirements do not determine rack dimensions but rather the electrical infrastructure supporting the rack.
Reference: CompTIA Network+ study materials on rack installation and equipment sizing.
B
Explanation:
Understanding Rack Size Determination:
The size of a rack for installation is determined by the dimensions of the equipment to be housed in it, primarily focusing on the depth and height of the devices.
Switch Depth:
Depth of Equipment: The depth of network switches and other rack-mounted devices directly influences the depth of the rack. If the equipment is deeper, a deeper rack is required to accommodate it.
Industry Standards: Most racks come in standard depths, but it is essential to match the depth of the rack to the deepest piece of equipment to ensure proper fit and airflow.
Server Height:
Height of Equipment: The height of servers and other devices is measured in rack units (U), where 1U equals 1.75 inches. The total height of all equipment determines the overall height requirement of the rack.
Rack Units: A rack’s height is typically described in terms of the number of rack units it can accommodate, such as 42U, 48U, etc.
Why Other Options are Less Relevant:
KVM Size: While important for management, KVM (Keyboard, Video, Mouse) switches do not typically determine rack size.
Hard Drive Size: Individual hard drives are installed within servers or storage devices, not directly influencing rack dimensions.
Cooling Fan Speed: Fan speed affects cooling but not the physical size of the rack.
Outlet Amperage: Power requirements do not determine rack dimensions but rather the electrical infrastructure supporting the rack.
Reference: CompTIA Network+ study materials on rack installation and equipment sizing.
Question #158
Which of the following actions should be taken as part of the first step of the troubleshooting methodology?
- A . Conduct tests to verify ideas
- B . Handle multiple problems individually
- C . Create a theory about the possible root cause
- D . Use a top-down approach
Correct Answer: C
Question #158
Which of the following actions should be taken as part of the first step of the troubleshooting methodology?
- A . Conduct tests to verify ideas
- B . Handle multiple problems individually
- C . Create a theory about the possible root cause
- D . Use a top-down approach
Correct Answer: C
Question #160
A company is hosting a secure that requires all connections to the server to be encrypted. A junior administrator needs to harded the web server. The following ports on the web server.
The following ports on the web server are open:
Which of the following ports should be disabled?
- A . 22
- B . 80
- C . 443
- D . 587
Correct Answer: B
B
Explanation:
For a web server that requires all connections to be encrypted, port 80 (HTTP) should be disabled. Port 80 is used for unencrypted web traffic, whereas port 443 is used for HTTPS, which provides encrypted communication.
Port 80 (HTTP): This port is used for unsecured web traffic. Disabling this port ensures that all web traffic must use HTTPS, which encrypts the data in transit.
Port 443 (HTTPS): This port is used for secure web traffic via SSL/TLS encryption. Keeping this port open ensures that secure connections can be made to the web server.
Other Ports:
Port 22: Used for SSH, providing secure remote access and file transfers. Port 587: Used for secure email submission (SMTP) with encryption. Network
Reference: CompTIA Network+ N10-007 Official Certification Guide: Discusses the roles and security implications of various ports and protocols.
Cisco Networking Academy: Provides training on secure web server configuration and port management.
Network+ Certification All-in-One Exam Guide: Covers port security and best practices for securing web servers.
B
Explanation:
For a web server that requires all connections to be encrypted, port 80 (HTTP) should be disabled. Port 80 is used for unencrypted web traffic, whereas port 443 is used for HTTPS, which provides encrypted communication.
Port 80 (HTTP): This port is used for unsecured web traffic. Disabling this port ensures that all web traffic must use HTTPS, which encrypts the data in transit.
Port 443 (HTTPS): This port is used for secure web traffic via SSL/TLS encryption. Keeping this port open ensures that secure connections can be made to the web server.
Other Ports:
Port 22: Used for SSH, providing secure remote access and file transfers. Port 587: Used for secure email submission (SMTP) with encryption. Network
Reference: CompTIA Network+ N10-007 Official Certification Guide: Discusses the roles and security implications of various ports and protocols.
Cisco Networking Academy: Provides training on secure web server configuration and port management.
Network+ Certification All-in-One Exam Guide: Covers port security and best practices for securing web servers.