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






2. Intrusion detection system - it reports attacks against monitored systems/networks






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






4. OSI






5. Confidentiality - integrity - availability






6. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute






7. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






9. 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






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






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






12. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers






13. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.






14. The Practice of sending an ACK inside another packet going to the same destination






15. Confidentiality - integrity - availability






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






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






18. 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.






19. Network scanner.






20. 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






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






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






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






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






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






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






27. Trying to ID modems in a telephone exchange that may be susceptible to compromise






28. Known - unknown - zero day






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






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






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






32. -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






33. 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.






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






35. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






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






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






38. 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






39. Considered to be a perimeter device






40. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






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






42. 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






43. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






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






45. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs






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






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






48. 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






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






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