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. OSI






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






3. 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






4. Stateful firewalls maintain state of traffic flows






5. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






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






7. 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






8. 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






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






10. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






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






12. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






16. 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.






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






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






19. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end






20. 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






21. Confidentiality - integrity - availability






22. TCP/IP - the IP protoco - The core routing protocol of the internet - - deals with transmission of packets between end points - defines the addressing scheme for the internet






23. 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






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






25. 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






26. 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






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






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






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






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






31. Confidentiality - symmetric encryption






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






33. Bits of code embedded in programs to quickly gain access at a later time






34. 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






35. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






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






37. 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






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






39. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






42. Network scanner.






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






44. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






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






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






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






49. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority






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 it's corresponding IP address