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






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






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






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






5. Unified data carrying service - replacing from replay and ATM






6. 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






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






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






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






10. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






11. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer






12. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






13. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






14. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script






15. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself






16. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






17. Going around with equipment to detect wireless networks






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






19. Stateful firewalls maintain state of traffic flows






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






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






22. Provides insight into the tactics - motives - and attacker tools






23. OSI






24. A system resource that has no legitimate purpose or reason for someone to connect to it - its purpose is to draw in attackers to understand how they break into a system






25. 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 it's corresponding IP address






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






27. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






28. 53 bytes - 48 bytes for data - 5 bytes for the header






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






30. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found






31. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






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






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






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






35. 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






36. Relies on executable code insertion and user interaction to spread






37. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






38. Infects MBR - no network spreading potential






39. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication






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






41. Handles transmissions across the physical media like wires - fiber - etc






42. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






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






44. 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.






45. Uses a 1 to 1 substitution of arbitrary numbers - given a one character mapping - you cannot determine the key






46. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches






47. 1 and 2 - Voice/Low speed data - 3 - Voice/Data 10Mb - 4 - Voice/Data 16Mb - 5 - 5e - Voice/Data 100Mb to 1Gb - 6 - Standard for gigabit






48. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.






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






50. 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