Test your basic knowledge |

Comptia Security +: Network Security

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. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






2. A method - used by switches and email servers - of delivering messages which are temporarily held by an intermediary before being sent to their final destination






3. A set of rules computers use to communicate with each other across a network






4. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood






5. Head of a packet contains...






6. Bbenign activity reported as malicious






7. Twisted pair cable with speed capability of 1Gbps






8. IP spoofing attack where the attacker can only send packets and has to guess about replies






9. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






10. Known as thicknet - 10mbps - limited to 500 meters






11. Amplifies the signal of incoming packets before broadcasting them to the network






12. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






13. Twisted pair cable with speed capability of 10Mbps






14. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic






15. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






16. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address






17. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






18. Dynamic / private ports






19. Collection on honeypots






20. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






21. An application layer gateway works at this layer of the OSI model






22. Allows all traffic except traffic that is specifically denied - also known as permissive access






23. Used to pass data from one VLAN to another






24. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






25. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external






26. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters






27. User / registered ports






28. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






29. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






30. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________






31. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack






32. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






33. An attacker redirects traffic by falsifying the IP address requested by ARP request






34. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






35. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing






36. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data






37. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets






38. Protocol used to map an known IP address to its corresponding media access control (MAC) address






39. Firewall with several NICs connected to different networks






40. IDS that relies on the identification of known attack signatures






41. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle






42. Unauthenticated connections - creating the potential for a successful connection as an anonymous user






43. IPS response method - terminate process/session - block/reject and redirect network traffic






44. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






45. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






46. IP - email - website - DNS - and ARP






47. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






48. A logical division of a computer network - in which all nodes can reach each other by broadcast at the data link layer - equivalent to a VLAN






49. Evolved from IDS - monitors network traffic - detects and responds to attack on network






50. A sniffer mode used to capture traffic addressed to/from another machine on the network