Computer Science homework help
Computer Science homework help. 1. For Linux/Unix systems that support SSH, what is the best practice recommendation for credentialed scan authentication?
OAuth authentication
SSH public key authentication with a passphrase
SecurID
Username / password
2. What is the difference between a host discovery scan and a basic network scan?
The network scan discovers hosts, services, and vulnerabilities, whereas the host discovery scan only discovers hosts and services running on open ports
The basic network scan requires credentials
The basic network scan will identify cloud services in use
The host discovery scan requires SecurityCenter to see all network traffic
3. The ‘List OS’ analysis tool shows:
A list of operating systems which SecurityCenter can detect
A list of the top 10 operating systems detected on the network
A list of operating systems and the number of vulnerabilities found
Only operating systems with at least 1 critical vulnerability
4. Using an SNMP community string for login is an example of:
Privilege escalation
SNMP community strings are not supported
Two-factor authentication
Keypair authentication
Compliance auditing is:
Only required by organizations in the government, financial, and industrial sectors
For organizations subject to PCI requirements
Comparing scan results with an established standard and reporting the deviations
Comparing scan results to trending vulnerabilities
Before a user adds a scan, which of the following would have been created (usually by another user, e.g., admin):
Scan Zones
Repositories
All of these
Scan Policies
Tenable provides pre-configured dashboard templates:
On the Tenable Dashboard Blog only
That become available by default after defining asset lists and running the first vulnerability scan
On the Tenable Dashboard Blog and in the “Add Dashboard” screen
On the “Add Dashboard” screen only
Credentialed scans can use all of the following protocols except:
Kerberos
SSH
OSPF
SNMP
Which of the following is NOT true about credentials in SecurityCenter?
Credentials can be shared among Organizations
Kerberos is one of many types of credentials supported
You can only specify one SSH username and password per credential
Credentials are reusable
Dashboard tabs are used to:
Provide organized, consolidated, and named groupings for vulnerability and event data
Separate active and passive data only
Display data on the next visual page
None of these
Which of the following is a valid post scan option?
Email the user who created the scan for each critical or high vulnerability that is found
Run a report
If the scan times out and does not complete, discard all results and restart the scan
Remove vulnerabilities from scanned hosts that do not reply
Which are the two types of Assurance Report Card?
Compliance or Executive
Vulnerability or Event
Executive or CIO
None of the these
The definitions of individual scan, cumulative, and mitigated vulnerability analysis do NOT include:
A single scan’s results, useful to show point-in time data
Alerting based on vulnerability results
Allows the user to filter results based on when the vulnerability was mitigated
Current vulnerabilities, including those recast, accepted or mitigated
On Windows hosts, the following is NOT a requirement for credentialed scans:
The authentication method must be set to classic
WMI service must be running and either set to a static port, or all ports must be opened between the Nessus scanner and the target host
All of these are required
The remote registry service must be disabled
File and print sharing must be enabled
hich of the following can be used for credentialed scans in SecurityCenter?
Encrypted username and password
All of these
Clear text username and password
RSA/DSA key pairs
Before performing scan analysis, the following is required:
Credentialed scans of all target systems
Active scan data and access to the repository containing the data
Passive AND Active scan data, as well as access to the repository containing the data
Queries created based upon the data you wish to analyze
After configuring vulnerability or event filters as desired, you can save your result as a:
Filtered Results List
Query
None of these
Saved Vulnerability List
Analyzing cumulative data is useful:
To view vulnerabilities that have been remediated
To extract point-in-time information with a narrow focus
To view trending information
To understand the full exposure of the network
ARCs can assist in checking for compliance with which of the following?
Internal policies
Business objectives
All of these
Industry/Government compliance requirements
Configuration recommendations that are typical for a secure baseline configuration from which to gauge compliance include all of the following except:
Listening service configuration
Sensitive data
Age of system hardware
Password complexity
System logging
The components required for each scan within SecurityCenter are:
Name, scan zone, repository, credentials, and targets
Schedule, asset, targets, and a post-scan report
Name, scan policy, scan zone, repository, and targets
Credentials, audit checks, repository, scan zone, and targets
Which of these is a valid scan target definition?
10.0.0.1-10.0.10.100
10.0.0.0/16
10.0.0.1,10.0.0.3
All of these
Why would you NOT want to store credentialed and non-credentialed data in the same repository?
Exporting the data will take too long
Mitigation information may be inaccurate
You can’t report on the data
If exported, you can’t import the data
When scanning a database, Tenable recommends that you:
Scan any other applications running on the database server
All of these
Scan the database software
Scan the operating system of the database server
When evaluating compliance scan results, you should want to focus on:
Compliant systems
Deviant systems
All of these
Offline systems
Vulnerabilities can be analyzed either as:
Mitigated or Resolved
Cumulative or Mitigated
Active or Transient
Active or Completed
Regarding ARCs in SecurityCenter, what does “CCC” stand for?
Cyber Common Controls
Common Cyber Controls
Critical Cyber Controls
Cyber Critical Controls
The types of repositories are:
Local, Remote, and Custom
IPv4, IPv6, Mobile, External, and Offline
Local, Cloud, and Offline
Compliance, Vulnerability, and Network
Scan policies can be created from:
Pre-configured template
Customized new template based on internal policies
All of these
Existing template
Compliance results use Info, High, and Medium severities to indicate:
Warning, Fail, and Contact Support
Fail, Pass, and Unable to complete the check
Pass, Fail, and More Information Required
Pass, Fail, and Unable to complete the check
Which of the following is true about a scan in SecurityCenter?
It must contain a scan policy
All of these
It can be restricted to specific targets
It can be scheduled to run
Why is it advisable to assign scanners to scan zones based on network topology?
It is not advisable since SecurityCenter will assign scanners on the fly
To avoid scanning offline systems
To avoid issues created by scanning through firewalls
To allow SecurityCenter to accurately update plugins on remote scanners
When on the ‘Add Active Scan’ page, if “Automatic Distribution Only” is set for the Organization’s scanning distribution method by the admin, the scanner used will be:
SecurityCenter picks the first available scanner, regardless where it is located in relation to the targets
None of these
SecurityCenter uses all available scanners and distributes the load
SecurityCenter picks the best available scanner in the target’s scan zone
SecurityCenter uses the scanner set as “default” during the initial configuration
Which analysis tool would you use to view detected web servers?
List Web Servers
List SSH Servers
Protocol Summary
None of these
If you were looking for specific hosts, which set of filters would be useful?
Workflow Filters
Plugin Filters
Date Filters
Target Filters
The first step to achieving compliance is:
Establishing a recommended and secure baseline host configuration
Conducting a full-scope PCI audit
Launching a credentialed patch audit
Hiring a third-party auditor
When using a policy template to create a policy, it is recommended to leave the default settings selected for all of the following reasons except:
Only plugins which are applicable to the target are executed
Pre-built policies are tailored by Tenable to meet most needs
These policies require minimal effort to configure
Conducting web application scans
Dynamic Asset Lists can be created from templates which:
Create scan policies based on asset lists
Export Asset Lists to a compatible asset tracking suite
None of these
Provide fast creation of commonly used Asset Lists
Nessus is an active scanner that connects to hosts in your network and identifies:
Vulnerabilities
Applications
Hosts
Services
All of these
If you are performing network and credentialed scans against the same targets, you should ___________ to ensure accurate mitigation data.
Create separate repositories to store each type of scan data
Configure SecurityCenter to discard all network scan data
Scan them using different user accounts
Create a separate organization
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