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CCNA - 2

Instructions:

Answer 50 questions in 15 minutes.
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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. What type of routing uses information that is manually entered into the routing table?
To facilitate the entry and exit of data on media.
A. acts as both client and server w/ same communication b. hybrid mode includes a centralized directory of files c. can be used in client-server networks
A. the router will discard the packet b. the router will send a time exceeded message to the source host
Static

2. Group of hosts that have identical bit patterns in the high order bits of their addresses
They must wait until the first hosts finish transfering the media.
Application Layer
A physical topology.
Network

3. What statements describe the logical token-passing topology?
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
0 to 1023
Network address
Host A

4. What is the primary purpose of Layer 4?
When connecting a host to a switch.
Hub
UDP
Identify processes or services that are communicating with end devices.

5. What is a mechanism used by TCP to provide flow control as segments travel from source to destination?
Window Size
The address of the router that the host will use to 'get to the other side'.
The MAC protocol can be very simple.
Signal loss can be experienced.

6. What is the purpose of the TCP/IP Network Application Layer?
Originate data flow.
Network Media Control
A. servers b. routers c. network printers
Identify processes or services that are communicating with end devices.

7. What are the advantages of using a client-server model?
Create signals that represent the bits in each frame for the media.
A. it has centralized administration b. security is easier to enforce
Wireless
Transport

8. What is the primary purpose of ARP?
Static
Network Media Control
To facilitate the entry and exit of data on media.
Resolve IPv4 addresses to MAC addresses.

9. What are key considering factors when grouping hosts into common networks?
No collisions will occur on this link.
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. purpose b. geographic location c. ownership
A. MTA b. SMTP

10. Intermediary devices used to implement security between networks
A. router b. firewall
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Network Access
A. ethernet utilizes CSMA/CD b. defined as placement of data frames on the media c. DLL protocols define the rules for access to different media

11. What do you need to use for an initial configuration on a Cisco router?
FTP
Console interface
Application Layer
Network Access

12. What can get you to an outside network?
Console
A default gateway (router).
A. application b. services
It is used for timing synchronization w/ alternating patterns of 1s and 0s.

13. What command can be used to determine if the router has experienced any input or output errors?
A physical topology.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Show Interfaces
A. next-hop b. metric/interface c. destination network address

14. 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?
A. Cat5 UTP b. Cat6 UTP
255.255.255.0
2046
A backbone cable.

15. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
Router(config)# interface FastEthernet 0/1
They must wait until the first hosts finish transfering the media.
Transport
2046

16. What does the IEEE 802.2 standard represent in Ethernet technologies?
255.255.255.224
A. it has centralized administration b. security is easier to enforce
A. HTTP b. HTTPS
Logical Link Control sublayer

17. There are 4 different hosts connected to a hub - media is being transfered between 2 of them but the other 2 will also like to transfer media. What must the latest hosts do to transfer the media?
They must wait until the first hosts finish transfering the media.
Show Interfaces
8
Source and Destination IP address

18. 3 measures of data transfer
A. goodput b. throughput c. bandwidth
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A physical topology.
They must wait until the first hosts finish transfering the media.

19. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
RJ-45
The magnetic field around the adjacent pairs of wire.
255.255.255.0
Source and Destination Ports

20. Which characteristics describe fiber optic cable?
A. not affected by EMI of RFI b. most expensive type of LAN cabling
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Window Size
IP is not properly installed

21. What makes fiber preferable to copper for interconnecting buildings?
Source Port
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
A. ethernet utilizes CSMA/CD b. defined as placement of data frames on the media c. DLL protocols define the rules for access to different media

22. When is a straight-through cable used in a network?
Any device whose backoff timer expires first.
When connecting a host to a switch.
A. application b. services
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

23. 3 terms that define the forms of help available within the Cisco IOS
A. perform degradation b. security issues c. host identification
Network Layer
SSH
A. hot keys b. context-sensitive c. command syntax check

24. 3 facts about the network portion of an IPv4 address
A. performance degradation b. security issues c. host identification
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
2046
As the commands are entered.

25. statements of IP adressing
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
A. private addresses are blocked from public internet by routers b. the ip address 127.0.0.1 is the loopback - directs traffic to itself
Rollover cable

26. Statements that describe LAN
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
A. perform degradation b. security issues c. host identification
A physical topology.
When connecting a host to a switch.

27. What info is found in the TCP and UDP header info?
A. acts as both client and server w/ same communication b. hybrid mode includes a centralized directory of files c. can be used in client-server networks
To facilitate the entry and exit of data on media.
Source and Destination IP address
Source and Destination Ports

28. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
MAC
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
Fiber
0 to 1023

29. 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?
A. servers b. routers c. network printers
8
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. acts as both client and server w/ same communication b. hybrid mode includes a centralized directory of files c. can be used in client-server networks

30. What information is added during encapsulation at OSI Layer 3?
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
Originate data flow.
0 to 1023
Source and Destination IP address

31. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
A. low overhead b. connectionless
0 to 1023
A. non-deterministic b. less overhead c. collisions exist
Network portion

32. At which layers of the OSI model does ethernet operate?
A. physical layer b. DLL layer
UTP
A. acts as both client and server w/ same communication b. hybrid mode includes a centralized directory of files c. can be used in client-server networks
Minimal delays in data delivery.

33. 3 functions of the upper data link sublayer in the OSI model
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
DNS
Application Layer
SMB

34. When a network service fails - which port is most often used to access a router for management purposes?
When connecting a host to a switch.
Supports error detection.
A. low overhead b. connectionless
Console

35. What are 2 features of User Diagram Protocol (UDP)?
It provides for the exchange of data over a common local media.
A. low overhead b. connectionless
RJ-45
Ctrl + Shift + 6

36. What method of signal transmission uses radio waves to carry signals?
It provides for the exchange of data over a common local media.
It has expanded adressing capabilities.
Originate data flow.
Wireless

37. What is a disadvantage of Telnet?
The packets will be delivered and reassembled at destination.
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
It does not support encryption.
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations

38. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
Static
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
Application Layer
IP is not properly installed

39. What networking devices are recommended to be assigned static IP addresses?
The address of the router that the host will use to 'get to the other side'.
A. servers b. routers c. network printers
No collisions will occur on this link.
A. goodput b. throughput c. bandwidth

40. In business LANs - which connector is used w/ twisted-pair networking cable?
Switch
RJ-45
MAC
A. application b. services

41. What 2 type of cables would most commonly be used for new runs?
A. addressing b. error detection c. frame delimiting
To enable a receiving host to forward the data to the appropriate application.
8
A. Cat5 UTP b. Cat6 UTP

42. What is the purpose of the preamble in an ethernet frame?
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. hot keys b. context-sensitive c. command syntax check
A. MTA b. SMTP
Destination Network Address

43. 2 features that make switches preferable to hubs
It provides for the exchange of data over a common local media.
A. minimizing of collisions b. division into broadcast domains
IP Protocol
Host A

44. What are 3 properties of contention-based media access for a shared media?
RJ-45
A. non-deterministic b. less overhead c. collisions exist
255.255.255.0
Destination Network Address

45. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
Network
Hub
To facilitate the entry and exit of data on media.
When connecting a host to a switch.

46. What can you identify when you examine the Network Layer header?
Console
The destination host address.
The address of the router that the host will use to 'get to the other side'.
Physical

47. Why are port numbers included in the TCP header of a segment?
80 (HTTP)
The magnetic field around the adjacent pairs of wire.
To enable a receiving host to forward the data to the appropriate application.
The physical address is added.

48. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Supports error detection.
A. media sharing b. logical topology
DNS
Identify processes or services that are communicating with end devices.

49. After a routers ends its boot sequence - the admin wants to check the routers config. From the EXEC mode - which commands can the admin use?
Is used by the server to resolve names.
A random delay helps prevent the stations from experiencing another collision during transmission.
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. show startup-config b. show running-config

50. What characteristic of an UTP helps reduce interference?
2046
A random delay helps prevent the stations from experiencing another collision during transmission.
255.255.255.0
Twisting of the cables

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CCNA - 2

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