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






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






3. A set of rules computers use to communicate with each other across a network






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






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






6. Acts as an organizations internal phone system






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






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






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






10. IDS response method using logging and notification






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






12. Session hijacking countermeasure






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






14. Monitors network traffic to identify possible attacks






15. Packet filtering - proxies - stateful inspection






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






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






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






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






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






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






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






23. Level 2 firewall often used to filter web traffic






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






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






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






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






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






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






30. Twisted pair cable with speed capability of 1Gbps






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






32. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






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






34. Twisted pair cable with speed capability of 10Mbps






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






36. 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






37. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






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






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






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






41. 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






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






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






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






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






46. Used to pass data from one VLAN to another






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






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






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






50. Firewall with several NICs connected to different networks