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. 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.






2. True positive - false positive - true negative - false negative






3. -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






4. 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






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






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






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






8. 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






9. Message in its encrypted form






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






11. 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






12. 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






13. OSI






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






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






16. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






19. Infects MBR - no network spreading potential






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






21. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management






22. 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






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






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






25. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






28. It makes sure the data sent from one side to the other is in a format useful to the other side






29. 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






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






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






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






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






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






35. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above






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






37. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






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






40. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.






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






42. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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43. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.






44. 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






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






46. Uses a 1 to 1 substitution of arbitrary numbers - given a one character mapping - you cannot determine the key






47. Confidentiality - integrity - availability






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






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






50. Syn - Syn/Ack - Ack