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






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






4. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






5. Collection on honeypots






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






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






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






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






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






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






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






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






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






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






16. Head of a packet contains...






17. Session hijacking countermeasure






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






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






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






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






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






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






24. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






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






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






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






28. Monitors network traffic to identify possible attacks






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






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






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






32. IDS response method using logging and notification






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






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






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






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






37. Used to pass data from one VLAN to another






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






39. 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






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






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






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






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






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






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






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






47. Firewall with several NICs connected to different networks






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






49. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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