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. Firewall with several NICs connected to different networks






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






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






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






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






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






7. Collection on honeypots






8. Examines a entire packet and determines action based on a complex set of rules






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






10. Bbenign activity reported as malicious






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






12. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms






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






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






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






16. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






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






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






19. Used to pass data from one VLAN to another






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






21. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






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






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






24. Acts as an organizations internal phone system






25. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






26. Twisted pair cable with speed capability of 1Gbps






27. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






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






29. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold






30. 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






31. Twisted pair cable with speed capability of 10Mbps






32. Head of a packet contains...






33. A complete transfer of all DNS zone information from one server to another






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






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






36. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






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






38. User / registered ports






39. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)






40. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






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






42. A variation of a smurf attack using UDP






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






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






45. Attempt to block service or reduce activity by overloading the victim machine with ping requests






46. Network configuration that permits selected outsiders access internal information systems






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






48. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet






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






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