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






2. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






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






4. Unencrypted message in its original form






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






6. Very simplistic. All systems are attached to the same cable segment. Rarely used because they're unreliable - low fault tolerance - poor traffic isolation - with limited scalability






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






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






9. True positive - false positive - true negative - false negative






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






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






12. It interacts with the application layer to determine which network services will be required






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






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






15. 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






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






17. 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






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






19. 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






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






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






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






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






24. One is for talking - one is for implementing






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






26. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures






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






28. Stateful firewalls maintain state of traffic flows






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






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






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






32. 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






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






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






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






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






37. -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






38. 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






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






40. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.






41. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






42. 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.






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






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






45. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found






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






47. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






48. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






50. destruction of data - leaking confidential information - providing backdoor access