Test your basic knowledge |

Router Security

Subject : it-skills
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. PERMIT TCP ANY ANY ESTABLISHED






2. Accounts without passwords - Type 7 encryption - account privilege higher than 1 - able to be fingered






3. Public IP address before translation






4. Access-list <number <deny | permit> source source-wildcard source-qualifier destination dest-wildcard dest-qualifier <log | log-input>






5. TCP and UDP Port 161






6. Allows the source IP host to specify a route through the IP network






7. Interim Build Number






8. Major Version - Minor Version - Release - Interim Build - Release Train Identifier






9. Attack that involves sending a packet to the router with the same IP address in the source and destination address fields - as well as the same port number in the source and destination port field - causing a denial of service






10. Dialer List - Routing Maps - Dynamic Routing Protocols - Controlling Remote Access - NAT'ing - Traffic Filtering






11. Allows for a one-to-one translation of local to global addresses; used by web servers and mail servers so that users can connect to them via their global address






12. 0-99






13. DNS Poisoning






14. Attack that involves sending a large amount of ICMP Echo packets to a subnet's broadcast address with a spoofed source IP address from that subnet






15. Command used to disable the ICMP message Address Mask Reply






16. Layer 7






17. Router to Router Denial of Service






18. The communication layer between the two other layers and provides network security - including ACLs - firewalls - any general public access servers and address translation; also known as the isolation LAN or DMZ






19. Two - one Inbound or Evaluated and one Outbound or Reflected






20. Software that blocks packets from unreachable hosts - thus allowing only reachable external hosts to initiate connections to a host on an internal network






21. Command to disable TCP small server on a router






22. Router threat that occurs when an attacker manipulates IP packets to falsify IP addresses - causing network disruptions as the router attempts to process the packet






23. DENY IP 127.0.0.0 0.255.255.255 ANY






24. Commands to disable Finger Server






25. When one network protocol called the payload protocol is encapsulated within a different delivery network - or provide a secure path through an untrusted network






26. Layer 3






27. Can obtain CIDR and router ID






28. Service Provider

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29. Protocol that allows data to be exchanged using a secure channel between two computers via encryption






30. Local and Remote






31. When a router acts as an intermediary for ARP queries on selected interfaces and enabling transparent access between multiple LAN segments






32. Traffic is passed in plaintext






33. Proprietary - used by Cisco routers and switches use to identify each other on LAN and WAN segments






34. Rewrites the and/or destination IP address of IP packets as they pass through a router or firewall from private to public addresses






35. Forces the user to enter both a valid username and password






36. Protocol used to keep their time-of-day clocks accurate and in sync






37. Top of the hierarchy - responsible for transporting large amounts of traffic both reliably and quickly and switching traffic as fast as possible throughout the internet






38. Command used to disable NTP on an interface






39. Release Number






40. Enterprise

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41. Uses SSL port 443






42. Refers to addresses used on the organization's private network






43. Layer 7






44. Buffer Overflow






45. Provides a checksum - ensuring traffic has not been modified along it's path






46. Tunnel Mode Protocol provides confidentiality - along with authentication and integrity protection with encryption






47. Plaintext






48. Ip accesslist extended <name1> - permit IP any any reflect <filename> - ip accesslist extended <name2> - evaluate <filename> - int f0/0 - ip access-group <name1> out - ip access-group <name2> in






49. Four TCP/UDP Small Server commands recommended to disable






50. Mode where only the payload of the IP packet is encrypted and/or authenticated