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. 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






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






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






4. Bbenign activity reported as malicious






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






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






7. Monitors network traffic to identify possible attacks






8. Used to pass data from one VLAN to another






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






10. User / registered ports






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






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






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






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






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






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






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






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






19. 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






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






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






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






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






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






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






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






27. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






28. 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






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






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






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






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






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






34. Network configuration that permits selected outsiders access internal information systems






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






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






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






38. Twisted pair cable with speed capability of 10Mbps






39. A variation of a smurf attack using UDP






40. Level 2 firewall often used to filter web traffic






41. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






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






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






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






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






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






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






48. 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






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






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