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






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






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






4. Collection on honeypots






5. User / registered ports






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






7. Twisted pair cable with speed capability of 10Mbps






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






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






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






11. A variation of a smurf attack using UDP






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






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






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






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






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






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






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






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






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






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






22. Used to pass data from one VLAN to another






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






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






25. Malicious activity not reported or detected






26. 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






27. 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






28. Session hijacking countermeasure






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






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






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






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






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






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






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






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






37. Firewall with several NICs connected to different networks






38. 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






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






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






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






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






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






44. Acts as an organizations internal phone system






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






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






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






48. IDS response method using logging and notification






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






50. Packet filtering - proxies - stateful inspection