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. Used to pass data from one VLAN to another






2. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






3. Level 2 firewall often used to filter web traffic






4. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






5. Forging an IP address with the address of a trusted host






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






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






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






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






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






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






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






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






14. 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






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






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






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






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






19. User / registered ports






20. IDS response method using logging and notification






21. Bbenign activity reported as malicious






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






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






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






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






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






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






28. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)






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






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






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






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






33. Twisted pair cable with speed capability of 1Gbps






34. Malicious activity not reported or detected






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






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






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






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






39. 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






40. 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






41. Firewall with several NICs connected to different networks






42. Session hijacking countermeasure






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






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






45. Monitors network traffic to identify possible attacks






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






47. Collection on honeypots






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






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






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