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. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules






2. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host






3. One is for talking - one is for implementing






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






5. Simple attack done by simply browsing available information that's allowed on a local network.






6. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment






7. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






8. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






9. Confidentiality - symmetric encryption






10. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire






11. True positive - false positive - true negative - false negative






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






13. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone






14. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






15. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






16. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.






17. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP






18. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested






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






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






21. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






22. Known - unknown - zero day






23. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






25. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






26. Protocol for mapping an IP address to a physical machine address that is recognized on the local network. A table - usually called the ARP cache - is used to maintain a correlation between each MAC and its corresponding IP address






27. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






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






29. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






30. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks






31. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






32. An FTP that allows downloads only if the user knows the exact name of the file they're looking for






33. destruction of data - leaking confidential information - providing backdoor access






34. Network scanner.






35. Malware - insider threat - natural disaster - terrorism - pandemic






36. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






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






38. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






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






40. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols






41. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






42. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535






43. Attaches itself to existing program files and activated when the exe is launched






44. Personal area network - phone tethering - bluetooth - etc






45. Publish separate mail - web - and DNS servers to the internet - provide appropriate access from internal network to internet - protect internal from external attack - provide defense in depth - protect all aspects of the system






46. Confidentiality - integrity - availability






47. 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






48. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






49. Connects many WANs - MANs - and LANs - provided via ISP






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