CompTIA N10-008 Practice Test - Questions Answers, Page 6

Decreasing the lease duration on the DHCP server will cause clients to renew their IP address leases more frequently, freeing up IP addresses for other clients to use. Reference: CompTIA Network+ Certification Study Guide, Chapter 3: IP Addressing.

The ifconfig eth0 promisc command should be run on the Linux computer to enable promiscuous mode, which allows the computer to capture all network traffic passing through the switch mirror port. Reference: CompTIA Network+ Certification Study Guide, Chapter 7: Network Devices.

Mismatched duplex settings can cause an increase in CRC errors, which are errors in data transmission that can result in corrupted data. Reference: CompTIA Network+ Certification Study Guide, Chapter 4: Infrastructure.

A wireless controller is used to manage a corporate WLAN, providing centralized management and configuration of access points. Reference: CompTIA Network+ Certification Study Guide, Chapter 8:

Wireless Networks.

Next-generation firewalls can provide content filtering and threat protection, and can manage multiple IPSec site-to-site connections. Reference: CompTIA Network+ Certification Study Guide, Chapter 5: Network Security.

In a half-duplex link, devices can only send or receive data at one time, not simultaneously. Late collisions occur when devices transmit data at the same time after waiting for a clear channel. One of the causes of late collisions is excessive cable length, which increases the propagation delay and makes it harder for devices to detect collisions. The link termination, device configuration, and device hardware are not likely to cause late collisions on a half-duplex link.

A virtual IP (VIP) address must be configured to ensure connectivity during a failover. A VIP address is a single IP address that is assigned to a group of servers or network devices. When one device fails, traffic is automatically rerouted to the remaining devices, and the VIP address is reassigned to the backup device, allowing clients to continue to access the service without interruption.

Reference:

CompTIA Network+ Certification Study Guide, Exam N10-007, Fourth Edition, Chapter 6: Network Servers, p. 300

Channel overlap is a common cause of wireless connectivity issues, especially in high-density environments where multiple APs are operating on the same or adjacent frequencies. Channel overlap can cause interference, signal degradation, and performance loss for wireless devices. The AP association time, EIRP, and RSSI are not likely to cause frequent disconnects and reconnects for wireless users.

Updating the firewalls with current firmware and software is an important step to ensure all the firewalls are hardened successfully, as it can fix any known vulnerabilities or bugs and provide new features or enhancements. Enabling an implicit permit rule is not a good practice for firewall hardening, as it can allow unwanted traffic to pass through the firewall. Configuring the log settings on the firewalls to the central syslog server is a good practice for monitoring and auditing purposes, but it does not harden the firewalls themselves. Using the same complex passwords on all firewalls is not a good practice for password security, as it can increase the risk of compromise if one firewall is breached. Reference: CompTIA Network+ Certification Exam Objectives Version 2.0 (Exam Number:

N10-006), Domain 3.0 Network Security, Objective 3.3 Given a scenario, implement network hardening techniques.