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. Acts as an organizations internal phone system






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






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






5. Packet filtering - proxies - stateful inspection






6. Monitors network traffic to identify possible attacks






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






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






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






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






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






12. 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






13. 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






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






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






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






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






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






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






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






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






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






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






24. Malicious activity not reported or detected






25. A variation of a smurf attack using UDP






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






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






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






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






30. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






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






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






33. Twisted pair cable with speed capability of 1Gbps






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






35. 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






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






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






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






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






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






41. Level 2 firewall often used to filter web traffic






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






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






44. Used to pass data from one VLAN to another






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






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






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






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






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






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