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 type of routing uses information that is manually entered into the routing table?
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Static
Resolve IPv4 addresses to MAC addresses.

2. What command will you use to place the router into the correct mode to configure an appropiate interface to connect a LAN?
A. media sharing b. logical topology
When connecting a host to a switch.
Router(config)# interface FastEthernet 0/1
The destination host address.

3. Why is flow control used for TCP data transfer?
2046
A. low overhead b. connectionless
It has expanded adressing capabilities.
To prevent the receiver from being overwhelmed by incoming data.

4. What causes crosstalk within cable pairs when using UTP?
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
The magnetic field around the adjacent pairs of wire.
Ctrl + Shift + 6
A. perform degradation b. security issues c. host identification

5. 3 facts about the network portion of an IPv4 address
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
To prevent the receiver from being overwhelmed by incoming data.
Router(config)# interface FastEthernet 0/1
To facilitate the entry and exit of data on media.

6. 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?
Destination Network Address
8
Router(config)# hostname Costas
Window Size

7. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
Hub
Console
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions

8. 3 measures of data transfer
A. goodput b. throughput c. bandwidth
A. security is difficult to enforce b. if one of the computers is responding to file sharing requests - that computer is functioning as a server
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
SSH

9. 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'.
Destination Network Address
A. servers b. routers c. network printers
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

10. What are 2 forms of application layer software?
A. application b. services
The destination host address.
A. router b. firewall
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

11. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
A. HTTP b. HTTPS
Resolve IPv4 addresses to MAC addresses.
UTP
To facilitate the entry and exit of data on media.

12. 2 functions of encapsulation
Next-Hop Address
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
A. DNS b. SMTP c. POP
When connecting a host to a switch.

13. 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?
2046
A. application b. presentation c. session d. transmision e. network f. data link g. physical
RJ-45
The physical address is added.

14. 3 features of IPv6
A. larger address space b. data types and classes of service c. authentication and encryption
Console interface
Binary ANDing
Rollover cable

15. 3 statements about routes and their use
A. security is difficult to enforce b. if one of the computers is responding to file sharing requests - that computer is functioning as a server
A default gateway (router).
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
It provides for the exchange of data over a common local media.

16. After a browser makes a request to a web server in the standard port - what will be the port number in the TCP header?
TCP initializes the sequence numbers for the sessions.
Create signals that represent the bits in each frame for the media.
Minimal delays in data delivery.
80 (HTTP)

17. What are 3 properties of contention-based media access for a shared media?
Host A
To facilitate the entry and exit of data on media.
80 (HTTP)
A. non-deterministic b. less overhead c. collisions exist

18. What is a disadvantage of Telnet?
172.16.192.160
It does not support encryption.
To prevent the receiver from being overwhelmed by incoming data.
Router

19. What process routers use to determine the subnet network address w/ an IP address and a subnet mask?
Binary ANDing
Wireless
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
No collisions will occur on this link.

20. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
A default gateway (router).
Switch
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
A backbone cable.

21. What method of signal transmission uses radio waves to carry signals?
Wireless
No collisions will occur on this link.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Resolve IPv4 addresses to MAC addresses.

22. To make a console connection from a comp to a Cisco router - what cable should be used?
Application Layer
Network Layer
Rollover cable
A default gateway (router).

23. In business LANs - which connector is used w/ twisted-pair networking cable?
A. flow control b. session establishment c. numbering and sequencing
Next-Hop Address
RJ-45
It has expanded adressing capabilities.

24. What is the purpose of resource records in DNS?
Network Layer Packet
SMB
DNS
Is used by the server to resolve names.

25. 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?
When connecting a host to a switch.
A. DNS b. SMTP c. POP
Destination Network Address
Host A

26. 2 most commonly used media types in ethernet networks
Network Layer
TCP initializes the sequence numbers for the sessions.
IP Protocol
A. copper UTP b. optical fiber

27. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
80 (HTTP)
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
A. servers b. routers c. network printers
Ctrl + Shift + 6

28. 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.
IP Protocol
A. router b. firewall
Switch

29. Where is the IOS file stored at?
Flash
Network portion
80 (HTTP)
A backbone cable.

30. What can you identify when you examine the Network Layer header?
The destination host address.
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. Physical b. Data Link
A. netstat -r b. route PRINT

31. If you have a full-duplex operational network - what can happen?
No collisions will occur on this link.
Binary ANDing
The address of the router that the host will use to 'get to the other side'.
It provides interface between applications on either end of the network.

32. Why are port numbers included in the TCP header of a segment?
It does not support encryption.
It uses support from the lower layers to distinguish between connections to the service.
To enable a receiving host to forward the data to the appropriate application.
Any device whose backoff timer expires first.

33. What correctly describes a MAC address?
A. hot keys b. context-sensitive c. command syntax check
Hosts return to listen-before-transmit mode.
DNS
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

34. During a TCP session - if packets arrive out of order - what will happen?
A. security is difficult to enforce b. if one of the computers is responding to file sharing requests - that computer is functioning as a server
Router(config)# interface FastEthernet 0/1
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
The packets will be delivered and reassembled at destination.

35. What is the primary reason for developing IPv6?
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
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
A. physical layer b. DLL layer
It has expanded adressing capabilities.

36. What are key considering factors when grouping hosts into common networks?
A. purpose b. geographic location c. ownership
Network Layer Packet
The magnetic field around the adjacent pairs of wire.
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

37. What can be a problem that is reduced by adding end-to-end addressing?
Source and Destination Ports
It reduces unnecessary broadcasts.
The destination host address.
A. router b. firewall

38. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
8
It provides interface between applications on either end of the network.
Host mobility
Fiber

39. 3 statements about the role of routers in the network
Supports error detection.
TCP initializes the sequence numbers for the sessions.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet

40. Intermediary devices used to implement security between networks
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
A. router b. firewall
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
TCP initializes the sequence numbers for the sessions.

41. What is the function of the DLL?
It provides for the exchange of data over a common local media.
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Source Port
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

42. 3 statements of media acess control
A. they initiate data exchanges b. they may upload data to servers
A. next-hop b. metric/interface c. destination network address
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
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

43. What are 3 common problems w/ large networks?
255.255.255.0
It provides interface between applications on either end of the network.
A. purpose b. geographic location c. ownership
A. perform degradation b. security issues c. host identification

44. What information is added during encapsulation at OSI Layer 3?
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. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
MAC
Source and Destination IP address

45. 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
A. low overhead b. connectionless
It reduces unnecessary broadcasts.
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

46. 3 properties of peer-2-peer applications
A physical topology.
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. application b. services
Transport

47. 3 protocols that operate in the application layer
Binary ANDing
FTP
A. DB 60 b. Winchester 15-pin c. smart serial
A. DNS b. SMTP c. POP

48. What type of network cable is used between a terminal and a console port?
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
A. Cat5 UTP b. Cat6 UTP
The destination host address.

49. What statements describe the logical token-passing topology?
Source and Destination Ports
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Network Layer
A. minimizing of collisions b. division into broadcast domains

50. What command can be used to determine if the router has experienced any input or output errors?
Show Interfaces
Resolve IPv4 addresses to MAC addresses.
Ctrl + Shift + 6
A. router b. firewall