ACAS REVIEW QUESTIONS AND COMPLETE
SOLUTIONS 2026
◉ ______ are administrative level usernames and passwords used in
authenticated scans? .Answer: Credentials
◉ True/False: You can associate multiple credentials with a single
scan .Answer: True
◉ Networks using DHCP require what Active Scan setting be enabled
to properly track hosts .Answer: Track hosts which have been
issued new IP addresses
◉ Which type of scan obtains information by authenticating to the
host access resources not available over the network .Answer:
Credentialed
◉ True/False: You may only select one import repository per scan
.Answer: True
◉ True/False: Once a scan is running, you cannot pause or stop it
until it is completed .Answer: False
,◉ Which Port Scanning Range option tells the scanner to scan only
common ports? .Answer: Default
◉ In a low-bandwidth environment, which options might you adjust
to try to improve scanning performance? .Answer: Max
Simultaneous Checks Per Host and Max Simultaneous Hosts Per
Scan
◉ What is the function of Performance Options in the Scan Policy?
.Answer: Determines the impact of a scan related to scan times and
network behavior
◉ You can configures the targets for you Blackout Window to
include... .Answer: All Systems, Assets, IPs, Mixed
◉ Which Scan Policy types allows you to select Plugin Families you
want? .Answer: Custom Advanced Scan
◉ What is an organization? .Answer: A group of individuals who are
responsible for a set of common assets
◉ What is a scan zone? .Answer: A defined static range of IP
addresses with an associated Nessus scanner
, ◉ What is the maximum size of a SecurityCenter 5 Repository?
.Answer: 32GB
◉ True/False: The IP addresses you are scanning must be contained
in both the definition of the scan zone and the definition of the
repository .Answer: True
◉ What SecurityCenter Role is responsible for setting scan zones?
.Answer: Admin
◉ How can you get your SecurityCenter Plugin updates? .Answer:
Automatically from DISA's plugin server or Manually from the DoD
Patch Repository
◉ True/False: The SecurityCenter Plugins menu displays a list of
script files used by Nessus and PVS scanners to collect and interpret
vulnerability, compliance, and configuration data. .Answer: True
◉ Which options can you consider for scanning stand-alone
networks. .Answer: Install both Nessus and SecurityCenter on a
Linux Laptop using Kickstart or in a virtual machine on a Windows 7
laptop. Also, you may Detach a Nessus scanner from its
SecurityCenter for scanning purposed and then reattach to
SecurityCenter to upload scan results
SOLUTIONS 2026
◉ ______ are administrative level usernames and passwords used in
authenticated scans? .Answer: Credentials
◉ True/False: You can associate multiple credentials with a single
scan .Answer: True
◉ Networks using DHCP require what Active Scan setting be enabled
to properly track hosts .Answer: Track hosts which have been
issued new IP addresses
◉ Which type of scan obtains information by authenticating to the
host access resources not available over the network .Answer:
Credentialed
◉ True/False: You may only select one import repository per scan
.Answer: True
◉ True/False: Once a scan is running, you cannot pause or stop it
until it is completed .Answer: False
,◉ Which Port Scanning Range option tells the scanner to scan only
common ports? .Answer: Default
◉ In a low-bandwidth environment, which options might you adjust
to try to improve scanning performance? .Answer: Max
Simultaneous Checks Per Host and Max Simultaneous Hosts Per
Scan
◉ What is the function of Performance Options in the Scan Policy?
.Answer: Determines the impact of a scan related to scan times and
network behavior
◉ You can configures the targets for you Blackout Window to
include... .Answer: All Systems, Assets, IPs, Mixed
◉ Which Scan Policy types allows you to select Plugin Families you
want? .Answer: Custom Advanced Scan
◉ What is an organization? .Answer: A group of individuals who are
responsible for a set of common assets
◉ What is a scan zone? .Answer: A defined static range of IP
addresses with an associated Nessus scanner
, ◉ What is the maximum size of a SecurityCenter 5 Repository?
.Answer: 32GB
◉ True/False: The IP addresses you are scanning must be contained
in both the definition of the scan zone and the definition of the
repository .Answer: True
◉ What SecurityCenter Role is responsible for setting scan zones?
.Answer: Admin
◉ How can you get your SecurityCenter Plugin updates? .Answer:
Automatically from DISA's plugin server or Manually from the DoD
Patch Repository
◉ True/False: The SecurityCenter Plugins menu displays a list of
script files used by Nessus and PVS scanners to collect and interpret
vulnerability, compliance, and configuration data. .Answer: True
◉ Which options can you consider for scanning stand-alone
networks. .Answer: Install both Nessus and SecurityCenter on a
Linux Laptop using Kickstart or in a virtual machine on a Windows 7
laptop. Also, you may Detach a Nessus scanner from its
SecurityCenter for scanning purposed and then reattach to
SecurityCenter to upload scan results
