Test your basic knowledge |

Subjects : cisco, it-skills, ccna
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. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?






2. What makes fiber preferable to copper for interconnecting buildings?






3. If you have a PC - 3 routers and a Laptop... How many unique CRC calculation will take place as traffic routes from the PC to the Laptop?






4. When do changes take effect in a Cisco router?






5. How many host addresses can be assigned to a subnetwork when using the 130.68.0.0 network address w/ a subnet mask of 255.255.248.0?






6. Which IP packet field will prevent endless loops?






7. Host1 is in the process of setting up a TCP session with Host2. Host1 sent a SYN message to begin establishment - what happens next?






8. What is a characteristic of a logical point-to-point topology?






9. What is a protocol that provides connectionless network layer services?






10. What are 3 properties of contention-based media access for a shared media?






11. What is a component of a routing table entry?






12. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?






13. Which characteristics describe fiber optic cable?






14. When destination network is not in the routing table - What are 2 actions the router might take?






15. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?






16. Statements that describe LAN






17. A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?






18. 3 statements about routes and their use






19. What are 3 common problems w/ large networks?






20. In business LANs - which connector is used w/ twisted-pair networking cable?






21. What is a drawback of the CSMA/CD access method?






22. What are 2 commands used to view a host routing table?






23. In a connectionless system - What is correct?






24. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?






25. What is a disadvantage of Telnet?






26. 3 measures of data transfer






27. What information is added during encapsulation at OSI Layer 3?






28. On a ethernet segment - why do hosts that experience a collision use a random delay before attempting to transmit?






29. How many bits make up an IPv4 address?






30. When a collision occurs using CSMA/CD - how do hosts w/ data to transmit respond after the backoff period expires?






31. What command can be used to determine if the router has experienced any input or output errors?






32. What command is used to change the default name to 'Costas'?






33. What is the purpose of the TCP/IP Network Application Layer?






34. What 2 type of cables would most commonly be used for new runs?






35. Which transport layer protocol provides low overhead and is used for applications that do not require reliable data delivery?






36. What characteristic of an UTP helps reduce interference?






37. In an IPv4 environment - what information is used by the router to forward data packets from one interface of a router to another?






38. To make a console connection from a comp to a Cisco router - what cable should be used?






39. 3 statements about the role of routers in the network






40. 2 most commonly used media types in ethernet networks






41. What type of routing uses information that is manually entered into the routing table?






42. What is the purpose of resource records in DNS?






43. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?






44. 3 primary functions of the data link layer encapsulation






45. What is dinamically selected by the source host when forwarding data?






46. What layer encapsulates segments into packets?






47. 3 terms that define the forms of help available within the Cisco IOS






48. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?






49. 2 things that will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away






50. What are 2 email components used to forward mail between servers?