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 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






2. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






3. 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






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






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






6. 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






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






8. 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






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






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






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






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






13. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






15. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






17. Known - unknown - zero day






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






19. Publish separate mail - web - and DNS servers to the internet - provide appropriate access from internal network to internet - protect internal from external attack - provide defense in depth - protect all aspects of the system






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






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






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






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






24. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






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






26. 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






27. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






28. OSI






29. 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






30. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






32. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






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






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






35. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






36. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






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






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






39. 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






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






42. Syn - Syn/Ack - Ack






43. 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






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






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






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






47. Connects the physical part of the network (cables) with the abstract (packets and datastreams)






48. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






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