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 logical connection point allowing computers and software to communicate and exchange data






2. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






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






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






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






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






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






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






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






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






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






12. 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






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






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






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






16. Session hijacking countermeasure






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






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






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






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






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






23. Firewall with several NICs connected to different networks






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






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






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






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






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






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






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






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






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. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






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






35. Twisted pair cable with speed capability of 1Gbps






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






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






38. Acts as an organizations internal phone system






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






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






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






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






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






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






46. 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






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






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






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






50. Head of a packet contains...