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. 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






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






3. 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






4. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






6. 53 bytes - 48 bytes for data - 5 bytes for the header






7. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






8. Considered to be a perimeter device






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






10. Confidentiality - integrity - availability






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






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






13. Known - unknown - zero day






14. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






15. logic bomb - trojan horse - trap door






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






17. 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






18. 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






19. 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






20. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






23. Going around with equipment to detect wireless networks






24. 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.






25. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






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






27. Message in its encrypted form






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






29. Stateful firewalls maintain state of traffic flows






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






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






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






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






34. Protocol for mapping an IP address to a physical machine address that is recognized on the local network - A table - usually called the ARP cache - is used to maintain a correlation between each MAC and it's corresponding IP address






35. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering






36. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






39. 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






40. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






41. 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






42. Provides insight into the tactics - motives - and attacker tools






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






44. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks






45. 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






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






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






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






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






50. Connects many WANs - MANs - and LANs - provided via ISP