An industrial control system (ICS) or supervisory control and data acquisition (SCADA) system is used to control and monitor industrial processes remotely.

The primary goal of a DDoS attack is to render a network or service unavailable by overwhelming it with traffic from multiple sources.

Separation of duties involves assigning specific tasks to different individuals to reduce the risk of fraud and errors.

SMTP over TLS (Secure) uses port 587 for sending emails securely.

An access control vestibule, or mantrap, is used in physical security to restrict entry to one person at a time, preventing tailgating and ensuring secure access.

File Transfer Protocol (FTP) uses port 21 for transferring files without encryption.

Hypertext Transfer Protocol (HTTP) uses port 80 to deliver web pages over an unencrypted connection.

In a bus topology, all devices share a single communication line, leading to frequent network collisions and slow performance as more devices are added.

Employee training in physical security is designed to educate staff about security policies, procedures, and best practices to prevent security breaches and ensure a secure working environment.

A hardware failure indicates that a network device is not functioning correctly due to a physical malfunction.

802.11b operates exclusively on the 2.4 GHz frequency and offers a maximum data rate of 11 Mbps, providing good range but being susceptible to interference.

Virtual desktops enable users to access a desktop environment hosted on a remote server.

Verifying full system functionality involves ensuring that the new equipment is functioning correctly and resolves the bottleneck issue.

Root DNS servers are at the top of the DNS hierarchy and provide information about the authoritative servers for top-level domains.

ARP spoofing involves sending fake ARP messages to a local network.

QSFP+ (Quad Small Form-Factor Pluggable) transceivers support data rates up to 40 Gbps and provide high-density connections.

Network performance issues might indicate that a network is experiencing slow performance and high latency.

A Wi-Fi analyzer is used to measure the signal strength and analyze the quality of a wireless connection.

The incorrect DNS setting should be checked if a user is experiencing issues with domain name resolution.

The network administrator should check the encryption protocol settings on both the device and the wireless network.

Network Time Protocol (NTP) uses port 123 for synchronizing time across devices.

Static IP addresses should be assigned outside the range of IP addresses designated for dynamic assignment by the DHCP server. This avoids IP address conflicts that can disrupt network operations.

A zone transfer should be configured to ensure that a DNS server has the latest records from the primary DNS server.

Quality of Service (QoS) ensures that critical applications receive necessary bandwidth by prioritizing network traffic, providing consistent performance for essential services.

Enabling DHCP snooping ensures that only authorized DHCP servers can assign IP addresses on the network.