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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 command will you use to place the router into the correct mode to configure an appropiate interface to connect a LAN?
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
Network portion
32 bits
Router(config)# interface FastEthernet 0/1

2. An admin needs to keep contents private - which access method should he use?
SSH
A. DNS b. SMTP c. POP
Window Size
Network

3. What is the proper order of the OSI Layers?
A. if destination network is directly connected - router forwards packet to destination host b. if no route exists for the destination and the default route is present - packet if fowarded to the next-hop c. if the originating host has a default gate
Router
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Is used by the server to resolve names.

4. During encapsulation - what happens in the Data Link Layer?
UTP
The physical address is added.
A. non-deterministic b. less overhead c. collisions exist
A. flow control b. session establishment c. numbering and sequencing

5. What is the role of the OSI Application Layer?
8
It has expanded adressing capabilities.
A. purpose b. geographic location c. ownership
It provides interface between applications on either end of the network.

6. What are 3 common problems w/ large networks?
Originate data flow.
Network Layer
It does not support encryption.
A. perform degradation b. security issues c. host identification

7. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
255.255.255.0
Rollover cable
Destination Network Address
2046

8. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
32 bits
Create signals that represent the bits in each frame for the media.
Console interface
A. Physical b. Data Link

9. What type of network cable is used between a terminal and a console port?
Static
Supports error detection.
The magnetic field around the adjacent pairs of wire.
Rollover cable

10. What makes fiber preferable to copper for interconnecting buildings?
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
The magnetic field around the adjacent pairs of wire.
Console interface
0 to 1023

11. Which layer supplies services and allows user interface?
Application Layer
Identify the device that allows local network computers to communicate w/ devices in other networks.
Create signals that represent the bits in each frame for the media.
A. the router will discard the packet b. the router will send a time exceeded message to the source host

12. What is the primary purpose of ARP?
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
Resolve IPv4 addresses to MAC addresses.
A. addressing b. error detection c. frame delimiting
It provides for the exchange of data over a common local media.

13. What are 2 common characteristics associated w/ dynamic routing protocols?
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
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. purpose b. geographic location c. ownership
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info

14. What is PDU?
A. DNS b. SMTP c. POP
It provides for the exchange of data over a common local media.
UDP
Is a layer of specific encapsulation.

15. What are 2 email components used to forward mail between servers?
It has expanded adressing capabilities.
It uses lasers as the light source.
A. MTA b. SMTP
The address of the router that the host will use to 'get to the other side'.

16. What is a characteristic of a single-mode fiber-optic cable?
It uses lasers as the light source.
Binary ANDing
Hub
Identify the device that allows local network computers to communicate w/ devices in other networks.

17. What are 2 protocols for transfering web resources?
A. HTTP b. HTTPS
8
Rollover cable
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

18. 2 characteristics of clients in data networks
IP Protocol
A. they initiate data exchanges b. they may upload data to servers
Physical
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet

19. What can get you to an outside network?
Console
UDP
A default gateway (router).
2046

20. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
Switch
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Host A
A. identifies pieces of data as part of the same communication b. ensures the data pieces can be directed to the correct receiving end device

21. What is a characteristic of a logical point-to-point topology?
The MAC protocol can be very simple.
A. it has centralized administration b. security is easier to enforce
A. minimizing of collisions b. division into broadcast domains
A default gateway (router).

22. How many bits make up an IPv4 address?
A physical topology.
Hosts return to listen-before-transmit mode.
32 bits
It uses support from the lower layers to distinguish between connections to the service.

23. What is the primary rope of the physical layer in transmitting data?
Destination Network Address
Create signals that represent the bits in each frame for the media.
Physical
Transport

24. Where is the IOS file stored at?
Flash
Rollover cable
A. identifies pieces of data as part of the same communication b. ensures the data pieces can be directed to the correct receiving end device
80 (HTTP)

25. 3 features of IPv6
Ctrl + Shift + 6
A. larger address space b. data types and classes of service c. authentication and encryption
Network Layer Packet
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

26. 3 statements of media acess control
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
A. physical layer b. DLL layer
Static
When connecting a host to a switch.

27. What is an effect of improperly applying a network cable connector?
A. hot keys b. context-sensitive c. command syntax check
A. purpose b. geographic location c. ownership
Signal loss can be experienced.
UDP

28. Which IP packet field will prevent endless loops?
A. replace a switch w/ a router b. subnet the new networks
The destination host address.
Time-to-live (TTL)
Network Layer Packet

29. 3 terms that define the forms of help available within the Cisco IOS
Show Interfaces
Next-Hop Address
A. hot keys b. context-sensitive c. command syntax check
A. application b. presentation c. session d. transmision e. network f. data link g. physical

30. What does the IEEE 802.2 standard represent in Ethernet technologies?
Time-to-live (TTL)
Signal loss can be experienced.
Logical Link Control sublayer
A. flow control b. session establishment c. numbering and sequencing

31. If host A's DG is 10.0.0.1 and host B's DG is 10.0.0.2 - when the router's IP address is 10.0.0.1. Which one will go through?
Host A
To facilitate the entry and exit of data on media.
A. media sharing b. logical topology
IP Protocol

32. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
Network address
A. non-deterministic b. less overhead c. collisions exist
Router(config)# interface FastEthernet 0/1
A. DNS b. SMTP c. POP

33. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
MAC
Host mobility
IP is not properly installed
A. MTA b. SMTP

34. What describes the purpose of default route?
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
Originate data flow.
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. netstat -r b. route PRINT

35. In business LANs - which connector is used w/ twisted-pair networking cable?
SMB
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
RJ-45
A backbone cable.

36. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
SMB
A. perform degradation b. security issues c. host identification
IP is not properly installed
A. show startup-config b. show running-config

37. What command can be used to determine if the router has experienced any input or output errors?
0 to 1023
Show Interfaces
The magnetic field around the adjacent pairs of wire.
255.255.255.0

38. 3 properties of peer-2-peer applications
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
A. larger address space b. data types and classes of service c. authentication and encryption
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
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

39. What application layer protocol is used to support file transfers between client and server?
FTP
Source and Destination IP address
Router(config)# interface FastEthernet 0/1
Host mobility

40. When a device is moved from one network to the other...?
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
They must wait until the first hosts finish transfering the media.
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
A. goodput b. throughput c. bandwidth

41. When destination network is not in the routing table - What are 2 actions the router might take?
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. Physical b. Data Link
Console

42. What are 2 forms of application layer software?
RJ-45
A. media sharing b. logical topology
A. application b. services
32 bits

43. What are key considering factors when grouping hosts into common networks?
A. purpose b. geographic location c. ownership
Switch
Window Size
A. larger address space b. data types and classes of service c. authentication and encryption

44. What information is added during encapsulation at OSI Layer 3?
Source and Destination IP address
Rollover cable
A. DNS b. SMTP c. POP
255.255.255.0

45. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
UTP
IP Protocol
0 to 1023
Source and Destination Ports

46. What is the purpose of the preamble in an ethernet frame?
A. not affected by EMI of RFI b. most expensive type of LAN cabling
FTP
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet

47. After an ethernet collision - which device has priority to transmit data?
SMB
Resolve IPv4 addresses to MAC addresses.
A. HTTP b. HTTPS
Any device whose backoff timer expires first.

48. Which characteristics describe fiber optic cable?
A. media sharing b. logical topology
A. not affected by EMI of RFI b. most expensive type of LAN cabling
Rollover cable
The destination host address.

49. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
Show Interfaces
A. physical layer b. DLL layer
Fiber
Logical Link Control sublayer

50. What device can check for faults - integrity and performance of media?
RJ-45
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
OTDR
UTP