CompTIA Server+ Practice Mode

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose D1

  D. Port Scanner. You can run nmap to determine what ports are open and what services are running on them.

• Chose D1

  User Account Control (UAC) Administrator and root accounts are the most highly privileged accounts in an operating system. When a server is left logged on with a privileged account, it creates a huge security issue. Most of the server operating systems you will encounter today incorporate the ability of an administrator or a root account holder to use a nonprivileged account as standard operating procedure and elevate their privileges as needed without logging off and logging back in as root. The User Account Control feature in Windows and the use of the sudo command in Linux make this possible. Using either system an administrator can elevate their privileges for a specific task and that security context ends when they are finished with that task. In Windows this can be done in the GUI by right-clicking the icon representing the task and selecting Run As Administrator UAC REQUIRES administrator-level access, provided answer is not correct.

• Chose D2

  Internet Control Message Protocol (ICMP) messages can be used to scan a network for open ports. Open ports indicate services that may be running and listening on a device that may be susceptible to attack. An ICMP, or port scanning, attack basically pings every address and port number combination and keeps track of which ports are open on each device as the pings are answered by open ports with listening services and not answered by closed ports. One of the most widely used port scanners is Network Mapper (Nmap), a free and open source utility for network discovery and security auditing.