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 - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






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






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






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






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






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






7. Used to pass data from one VLAN to another






8. 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






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






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






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






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






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






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






15. 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






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






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






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






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






20. IDS response method using logging and notification






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






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






23. Head of a packet contains...






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






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






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






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






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






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






30. Bbenign activity reported as malicious






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






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






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






34. Malicious activity not reported or detected






35. Twisted pair cable with speed capability of 10Mbps






36. User / registered ports






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






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






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






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






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






42. 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






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






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






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






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






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






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






49. Acts as an organizations internal phone system






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