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. Packet filtering - proxies - stateful inspection






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






4. Twisted pair cable with speed capability of 10Mbps






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






6. Used to pass data from one VLAN to another






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






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






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






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






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






12. IDS response method using logging and notification






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






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






15. User / registered ports






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






17. 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






18. 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






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






20. Session hijacking countermeasure






21. 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






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






23. Dynamic / private ports






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






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






26. Bbenign activity reported as malicious






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






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






29. IPS response method - terminate process/session - block/reject and redirect network traffic






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






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






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






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






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






35. 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






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






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






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






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






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






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






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






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






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






45. 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






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






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






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






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






50. A variation of a smurf attack using UDP