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






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






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






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






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






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






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






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






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






10. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






12. 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






13. -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






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






15. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself






16. Intrusion detection system - it reports attacks against monitored systems/networks






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






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






20. 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






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






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






23. 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






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






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






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






27. Confidentiality - symmetric encryption






28. 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






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






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






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






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






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






34. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






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






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






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






38. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






39. 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.






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






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






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. Confidentiality - integrity - availability






44. 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






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






46. Network scanner.






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






48. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






49. 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






50. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer