Test your basic knowledge |

CCNA - 2

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. What statements describe the logical token-passing topology?
It reduces unnecessary broadcasts.
To facilitate the entry and exit of data on media.
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
SSH

2. What are 3 common problems w/ large networks?
A. hot keys b. context-sensitive c. command syntax check
2046
A. perform degradation b. security issues c. host identification
A. decentralized resources b. resource sharing w/o a dedicated server

3. Which characteristics describe fiber optic cable?
A. flow control b. session establishment c. numbering and sequencing
A. physical layer b. DLL layer
It provides interface between applications on either end of the network.
A. not affected by EMI of RFI b. most expensive type of LAN cabling

4. What is the primary purpose of ARP?
Network
It provides for the exchange of data over a common local media.
It reduces unnecessary broadcasts.
Resolve IPv4 addresses to MAC addresses.

5. Which device is used to create or divide broadcast domains?
SMB
Router
2046
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions

6. What is the primary rope of the physical layer in transmitting data?
A. application b. services
FTP
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Create signals that represent the bits in each frame for the media.

7. 3 statements about the role of routers in the network
A. the router will discard the packet b. the router will send a time exceeded message to the source host
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
8
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

8. What method of signal transmission uses radio waves to carry signals?
Wireless
Logical Link Control sublayer
Network portion
A. servers b. routers c. network printers

9. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
A. DB 60 b. Winchester 15-pin c. smart serial
Application Layer
A. enable mode b. priviledge executive mode
IP is not properly installed

10. When do changes take effect in a Cisco router?
Network address
As the commands are entered.
To enable a receiving host to forward the data to the appropriate application.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

11. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
Next-Hop Address
Fiber
A. flow control b. session establishment c. numbering and sequencing
When connecting a host to a switch.

12. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
The magnetic field around the adjacent pairs of wire.
A. DB 60 b. Winchester 15-pin c. smart serial
Network address
Source and Destination Ports

13. What are 2 email components used to forward mail between servers?
Destination Network Address
A. MTA b. SMTP
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. the device will still operate at the same Layer 2 address (the address it had before) b. Layer 3 address must me reassigned for it to communicate w/ the network

14. Why are port numbers included in the TCP header of a segment?
To enable a receiving host to forward the data to the appropriate application.
A. goodput b. throughput c. bandwidth
Create signals that represent the bits in each frame for the media.
A. HTTP b. HTTPS

15. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
A. perform degradation b. security issues c. host identification
A. application b. services
Transport
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

16. How many bits make up an IPv4 address?
32 bits
RJ-45
The packets will be delivered and reassembled at destination.
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

17. statements of IP adressing
DNS
Supports error detection.
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
When connecting a host to a switch.

18. What characteristic of an UTP helps reduce interference?
No collisions will occur on this link.
SMB
Twisting of the cables
Network

19. 3 measures of data transfer
Signal loss can be experienced.
Window Size
A. goodput b. throughput c. bandwidth
Source and Destination Ports

20. Network Protocols
Logical Link Control sublayer
Source and Destination Ports
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Is a layer of specific encapsulation.

21. Statements that describe LAN
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
A. media sharing b. logical topology
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
Console

22. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
When connecting a host to a switch.
Network Layer Packet
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
UTP

23. What do you need to use for an initial configuration on a Cisco router?
A. minimizing of collisions b. division into broadcast domains
The destination host address.
Console interface
Host mobility

24. 3 features of IPv6
The packets will be delivered and reassembled at destination.
Network Layer
Create signals that represent the bits in each frame for the media.
A. larger address space b. data types and classes of service c. authentication and encryption

25. What is PDU?
SSH
Is a layer of specific encapsulation.
Wireless
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

26. Why is flow control used for TCP data transfer?
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
To prevent the receiver from being overwhelmed by incoming data.
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
MAC

27. What is the function of the DLL?
It provides for the exchange of data over a common local media.
Minimal delays in data delivery.
A. physical layer b. DLL layer
A. enable mode b. priviledge executive mode

28. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Source and Destination IP address
A. servers b. routers c. network printers
To prevent the receiver from being overwhelmed by incoming data.
Supports error detection.

29. Which portion of the network layer address does a router use to forward packets?
The destination host address.
It uses support from the lower layers to distinguish between connections to the service.
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
Network portion

30. What is dinamically selected by the source host when forwarding data?
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Source Port
A. addressing b. error detection c. frame delimiting
Time-to-live (TTL)

31. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Originate data flow.
Rollover cable
It does not support encryption.
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

32. If you have a full-duplex operational network - what can happen?
Supports error detection.
When connecting a host to a switch.
No collisions will occur on this link.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

33. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
Destination is not contacted before a packet is sent.
A. copper UTP b. optical fiber
SMB
Switch

34. 3 characteristics of valid Ethernet Layer 2 addresses
TCP initializes the sequence numbers for the sessions.
Console
A. next-hop b. metric/interface c. destination network address
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

35. What is the proper order of the OSI Layers?
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
It provides for the exchange of data over a common local media.
A. application b. presentation c. session d. transmision e. network f. data link g. physical
No collisions will occur on this link.

36. What device can check for faults - integrity and performance of media?
Destination Network Address
OTDR
To prevent the receiver from being overwhelmed by incoming data.
As the commands are entered.

37. What are 2 features of User Diagram Protocol (UDP)?
A. low overhead b. connectionless
A. enable mode b. priviledge executive mode
Signal loss can be experienced.
TCP initializes the sequence numbers for the sessions.

38. What are 2 forms of application layer software?
A. router b. firewall
A. application b. services
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
To enable a receiving host to forward the data to the appropriate application.

39. How does the application layer on a server process multiple client requests for services?
255.255.255.224
It uses support from the lower layers to distinguish between connections to the service.
When connecting a host to a switch.
IP Protocol

40. 3 functions of the upper data link sublayer in the OSI model
A. decentralized resources b. resource sharing w/o a dedicated server
A. router b. firewall
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Network Access

41. 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
A. flow control b. session establishment c. numbering and sequencing
A. the router will discard the packet b. the router will send a time exceeded message to the source host
It does not support encryption.
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1

42. 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?
Application Layer
172.16.192.160
A. next-hop b. metric/interface c. destination network address
Transport

43. Where is the IOS file stored at?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Flash
A. the router will discard the packet b. the router will send a time exceeded message to the source host
A. Cat5 UTP b. Cat6 UTP

44. What type of network cable is used between a terminal and a console port?
A. replace a switch w/ a router b. subnet the new networks
Rollover cable
Twisting of the cables
Console interface

45. An admin needs to keep contents private - which access method should he use?
SSH
SMB
A. flow control b. session establishment c. numbering and sequencing
Is a layer of specific encapsulation.

46. Which type of cable is most often associated w/ fiber-optic cable?
Host mobility
A backbone cable.
UDP
It reduces unnecessary broadcasts.

47. What are 2 commands used to view a host routing table?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
0 to 1023
A. netstat -r b. route PRINT
A. hot keys b. context-sensitive c. command syntax check

48. What 2 type of cables would most commonly be used for new runs?
It has expanded adressing capabilities.
A. Cat5 UTP b. Cat6 UTP
Router(config)# interface FastEthernet 0/1
Create signals that represent the bits in each frame for the media.

49. At which layers of the OSI model does ethernet operate?
A. physical layer b. DLL layer
Binary ANDing
Source and Destination Ports
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions

50. When destination network is not in the routing table - What are 2 actions the router might take?
A. physical layer b. DLL layer
Static
It provides interface between applications on either end of the network.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry