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






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






3. Network scanner.






4. True positive - false positive - true negative - false negative






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






6. Message in its encrypted form






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






8. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






9. 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






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






11. 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.






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






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






14. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






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






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






19. 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






20. 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






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






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






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






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






25. Stateful firewalls maintain state of traffic flows






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






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






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






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






30. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside






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






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






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






34. Syn - Syn/Ack - Ack






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






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






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






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






39. 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






40. 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






41. 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






42. 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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43. 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






44. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






45. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere






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






47. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






48. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has






49. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






50. -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







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