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 variation of a smurf attack using UDP






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






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






4. Packet filtering - proxies - stateful inspection






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






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






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






8. 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






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






10. IDS response method using logging and notification






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






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






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






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






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






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






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






18. Level 2 firewall often used to filter web traffic






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






20. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






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






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






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






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






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






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






27. Acts as an organizations internal phone system






28. 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






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






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






31. Firewall with several NICs connected to different networks






32. 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






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






34. Bbenign activity reported as malicious






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






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






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






38. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






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






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






41. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






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






43. Monitors network traffic to identify possible attacks






44. 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






45. 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






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






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






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






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






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