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. 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






2. Known - unknown - zero day






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






4. 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






5. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






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






7. One is for talking - one is for implementing






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






9. 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






10. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






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






14. 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






15. 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






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






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






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






19. 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 its corresponding IP address






20. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






21. Considered to be a perimeter device






22. Confidentiality - integrity - availability






23. 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






24. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone






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






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






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






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






29. Bits of code embedded in programs to quickly gain access at a later time






30. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

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






32. Uniform protection - protected enclaves - information centric - threat vector analysis






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






34. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






35. Confidentiality - symmetric encryption






36. 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






37. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






39. 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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40. 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






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






42. Syn - Syn/Ack - Ack






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






44. Intellectual property - business goals - validated data - historical






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






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






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






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






49. 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






50. 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