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






2. Malicious activity not reported or detected






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






4. 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






5. A variation of a smurf attack using UDP






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






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






8. 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






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






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






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






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






13. 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






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






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






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






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






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






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






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






21. A packet filtering firewall works at this layer of the OSI model






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






23. Bbenign activity reported as malicious






24. An application layer gateway works at this layer of the OSI model






25. Used to pass data from one VLAN to another






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






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






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






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






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






31. 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






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






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






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






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






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






37. 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






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






39. Head of a packet contains...






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






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






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






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






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






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






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






47. Session hijacking countermeasure






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






49. Twisted pair cable with speed capability of 10Mbps






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