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. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






2. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT






3. IDS response method using logging and notification






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






5. Head of a packet contains...






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






7. Bbenign activity reported as malicious






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






9. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






10. Known as thinnet - 10mbps - limited to 185 meters






11. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive






12. A pool of public IP addresses is shared by a collection of private IP addresses






13. Connects devices together to form a subnet - broadcasts incoming packets to all devices






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






15. A logical connection point allowing computers and software to communicate and exchange data






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






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






18. One private IP address is mapped to one public IP address






19. Man in the middle attack where the content of an intercepted message is altered before it is sent on






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






21. Packet filtering - proxies - stateful inspection






22. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






23. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






24. A server that sits between an intranet and it's Internet connection - masking all IP addresses






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






26. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






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






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






29. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






30. Twisted pair cable with speed capability of 1Gbps






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






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






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






34. A packet filtering firewall works at this layer of the OSI model






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






36. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






37. A variation of a smurf attack using UDP






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






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






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






41. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication






42. Acts as an organizations internal phone system






43. 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






44. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ






45. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






46. Twisted pair cable with speed capability of 10Mbps






47. User / registered ports






48. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information






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






50. Firewall with several NICs connected to different networks