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






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






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






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






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






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






7. A variation of a smurf attack using UDP






8. Used to pass data from one VLAN to another






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






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






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






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






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






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






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






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






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






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






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






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






21. Collection on honeypots






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






23. Packet filtering - proxies - stateful inspection






24. 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






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






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






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






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






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






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






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






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






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






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






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






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






37. Twisted pair cable with speed capability of 1Gbps






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






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






40. IDS response method using logging and notification






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






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






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






44. 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






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






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






47. Acts as an organizations internal phone system






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






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






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