Test your basic knowledge |

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






2. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






3. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code






4. An attempt to gain access by bombarding it with guesses until the password is found.






5. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






6. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis






7. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above






8. Full open - half open (stealth scan) - UDP - Ping






9. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






10. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.






11. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






12. Stateful firewalls maintain state of traffic flows






13. Going around with equipment to detect wireless networks






14. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






15. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection






16. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere






17. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures






18. Spread as an office attachment with executable code programmed using macro facility - targets are data files - visual basic editor and other macro languages - payload executes when the code is launched






19. OSI






20. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






21. The practice of sending an ACK inside another packet going to the same destination






22. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.






23. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






24. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.






25. Known - unknown - zero day






26. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






27. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis






28. Infects MBR - no network spreading potential






29. Confidentiality - symmetric encryption






30. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






31. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






32. It interacts with the application layer to determine which network services will be required






33. FIN 130 - ACK 131 - FIN 570 - ACK 571






34. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored






35. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






36. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






37. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






38. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks






39. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring






40. Syn - Syn/Ack - Ack






41. Connects the physical part of the network (cables) with the abstract (packets and datastreams)






42. True positive - false positive - true negative - false negative






43. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






44. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






45. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






46. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






47. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom






48. Confidentiality - integrity - availability






49. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






50. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host