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






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






3. Used to pass data from one VLAN to another






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






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






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






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






8. Twisted pair cable with speed capability of 10Mbps






9. IDS response method using logging and notification






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






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






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






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






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






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






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






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






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






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






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






21. Collection on honeypots






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






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






24. 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






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






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






27. 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






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






29. 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






30. Dynamic / private ports






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






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






33. Head of a packet contains...






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






35. A variation of a smurf attack using UDP






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






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






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






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






40. Monitors network traffic to identify possible attacks






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






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






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






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






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






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






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






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






49. Firewall with several NICs connected to different networks






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