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






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






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






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






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






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






7. A packet filtering firewall works at this layer of the OSI model






8. 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






9. Malicious activity not reported or detected






10. Level 2 firewall often used to filter web traffic






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






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






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






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






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






16. Twisted pair cable with speed capability of 10Mbps






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






18. Bbenign activity reported as malicious






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






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






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






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






23. Session hijacking countermeasure






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






25. Used to pass data from one VLAN to another






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






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






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






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






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






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






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






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






34. 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






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






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






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






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






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






40. Head of a packet contains...






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






42. 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






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






44. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






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