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






2. Syn - Syn/Ack - Ack






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






4. fast - with little fidelity - examines header information and limited payload data






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






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






7. Stateful firewalls maintain state of traffic flows






8. An agreement on how different computer will work - protocols define the format and order of messages and what to do upon receipt of the messages - basically the rules of the network






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






10. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






11. Message in its encrypted form






12. 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






13. 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






14. It handles the establishment and maintenance of connections between systems






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






16. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






17. 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






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






19. 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






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






21. Confidentiality - integrity - availability






22. A cracking tool inserted into the OS that allows the attacker to do as they please.






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






24. Network scanner.






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






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 it's corresponding IP address






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






28. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

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






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






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






32. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry






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






34. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.






35. 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






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






37. Confidentiality - integrity - availability






38. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






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






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






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






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






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






47. 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






48. Intellectual property - business goals - validated data - historical






49. 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






50. 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







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