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






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






3. Level 2 firewall often used to filter web traffic






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






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






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






7. Malicious activity not reported or detected






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






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






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






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






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






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






14. A variation of a smurf attack using UDP






15. 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






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






17. Used to pass data from one VLAN to another






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






19. 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






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






21. Monitors network traffic to identify possible attacks






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






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






24. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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






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






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






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






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






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






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






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






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






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






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






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






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






39. Firewall with several NICs connected to different networks






40. 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






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






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






43. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






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






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






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






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






48. User / registered ports






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






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