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. Network scanner.






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






4. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






6. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






7. Protected at rest - protected in transit - secure the key






8. -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






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






10. OSI






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






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






13. Simple attack done by simply browsing available information that's allowed on a local network.






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






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






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






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






18. 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






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






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






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






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






23. 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.






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






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






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






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






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






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






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






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






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






33. 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.






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






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






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






37. 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






38. logic bomb - trojan horse - trap door






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






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






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






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






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






44. 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






45. 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






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






47. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






48. 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






49. Confidentiality - integrity - availability






50. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector







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