- (Topic 3)
A security administrator is trying to prevent incorrect IP addresses from being assigned to clients on the network. Which of the following would MOST likely prevent this and allow the network to continue to operate?
Correct Answer:
A
To prevent incorrect IP addresses from being assigned to clients on the network and allow the network to continue to operate, the security administrator should consider configuring DHCP (Dynamic Host Configuration Protocol) snooping on the switch. DHCP snooping is a security feature that is used to prevent unauthorized DHCP servers from operating on a network. It works by allowing the switch to monitor and validate DHCP traffic on the network, ensuring that only legitimate DHCP messages are forwarded to clients. This can help to prevent incorrect IP addresses from being assigned to clients, as it ensures that only authorized DHCP servers are able to provide IP addresses to clients on the network.
- (Topic 3)
A network administrator is designing a wireless network. The administrator must ensure a rented office space has a sufficient signal. Reducing exposure to the wireless network is important, but it is secondary to the primary objective. Which of the following would MOST likely facilitate the correct accessibility to the Wi-Fi network?
Correct Answer:
B
- (Topic 3)
A technician needs to allow a device to maintain the same IP address lease based on the physical address of a network card. Which of the following should the technician use?
Correct Answer:
A
MAC address reservation is the technique that allows a device to maintain the same IP address lease based on the physical address of a network card. MAC address reservation is a feature of DHCP that allows network administrators to assign specific IP addresses to specific devices based on their MAC addresses. A MAC address is a unique identifier that is assigned to each network interface card (NIC) by its manufacturer. A MAC address reservation can ensure that a device always receives the same IP address from the DHCP server, regardless of its location or connection time. This can be useful for devices that need consistent network access or configuration, such as servers, printers, or cameras. References: [CompTIA Network+ Certification Exam Objectives], How to Reserve IP Addresses with DHCP Server
- (Topic 3)
A network technician is implementing a solution that will allow end users to gain access to multiple applications after logging on. Which of the following authentication methods would allow this type of access?
Correct Answer:
A
- (Topic 3)
A company is sending a switch to a remote site to be reused. An administrator needs to move the switch and ensure no network settings persist. Which of the following databases does the administrator need to delete?
Correct Answer:
A
The VLAN database is the database that stores the VLAN configuration information on a switch, such as the VLAN IDs, names, and ports. The VLAN database is stored in a separate file from the switch configuration file, and it is not affected by the erase startup- config or reload commands. Therefore, to delete the VLAN database, the administrator needs to use a specific command, such as delete flash:vlan.dat or delete vlan.dat, depending on the switch model. Deleting the VLAN database will ensure that no network settings related to VLANs persist on the switch when it is moved to a remote site. References
✑ 1: CompTIA Network+ N10-008 Certification Study Guide, page 163
✑ 2: N10-008 CompTIA Network+ : 5.5 - Professor Messer IT Certification Training Courses
✑ 3: CompTIA Network+ (N10-008) Practice Exam w/PBQ & Solution, question 6