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






2. IDS response method using logging and notification






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






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






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






6. Firewall with several NICs connected to different networks






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






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






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






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






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






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






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






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






15. Twisted pair cable with speed capability of 10Mbps






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






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






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






19. Malicious activity not reported or detected






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






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






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






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






24. 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






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






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






27. Acts as an organizations internal phone system






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






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






30. Monitors network traffic to identify possible attacks






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






32. Used to pass data from one VLAN to another






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






34. User / registered ports






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






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






37. Twisted pair cable with speed capability of 1Gbps






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






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






40. 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






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






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






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






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






45. Packet filtering - proxies - stateful inspection






46. 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






47. 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






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






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






50. A variation of a smurf attack using UDP