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. Stateful firewalls maintain state of traffic flows






2. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis






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






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






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






7. 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






8. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols






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






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






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






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






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






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






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






16. 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






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






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






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






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






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






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






23. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






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






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






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






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






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






29. 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






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






31. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






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






33. Confidentiality - integrity - availability






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






35. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






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






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






38. 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.






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






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






41. Handles the network address scheme and connectivity of multiple network segments. It handles communication.






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






43. 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






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






45. -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






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






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






48. 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






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






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