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. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
Network Layer
Source Port
They must wait until the first hosts finish transfering the media.
A. enable mode b. priviledge executive mode

2. 2 characteristics of peer-2-peer
A. decentralized resources b. resource sharing w/o a dedicated server
Collisions can decrease network performance.
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Console interface

3. 3 facts about the network portion of an IPv4 address
A. perform degradation b. security issues c. host identification
Transport
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. purpose b. geographic location c. ownership

4. When a device is moved from one network to the other...?
A. low overhead b. connectionless
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
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
Router(config)# interface FastEthernet 0/1

5. Which type of cable is most often associated w/ fiber-optic cable?
The physical address is added.
A. show startup-config b. show running-config
A backbone cable.
Rollover cable

6. statements of IP adressing
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
A. replace a switch w/ a router b. subnet the new networks
The destination host address.
The physical address is added.

7. What does the IEEE 802.2 standard represent in Ethernet technologies?
A. the router will discard the packet b. the router will send a time exceeded message to the source host
MAC
Logical Link Control sublayer
Originate data flow.

8. What are 3 common problems w/ large networks?
It uses support from the lower layers to distinguish between connections to the service.
A. perform degradation b. security issues c. host identification
Network address
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

9. What application layer protocol is used to support file transfers between client and server?
Next-Hop Address
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
FTP
UDP

10. What is a benefit of a WAN?
Host mobility
The MAC protocol can be very simple.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
A backbone cable.

11. What is an automated service that matches resource names w/ required IP addresses?
The magnetic field around the adjacent pairs of wire.
DNS
255.255.255.224
32 bits

12. What is the primary reason for developing IPv6?
UTP
RJ-45
It has expanded adressing capabilities.
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet

13. 2 most commonly used media types in ethernet networks
Rollover cable
A. copper UTP b. optical fiber
The packets will be delivered and reassembled at destination.
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

14. During a TCP session - if packets arrive out of order - what will happen?
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Hub
Identify processes or services that are communicating with end devices.
The packets will be delivered and reassembled at destination.

15. Default Gateway is incorrect on the host - What is the impact on the communications?
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. low overhead b. connectionless
A. physical layer b. DLL layer

16. When destination network is not in the routing table - What are 2 actions the router might take?
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Flash
A. minimizing of collisions b. division into broadcast domains

17. 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
80 (HTTP)
A. flow control b. session establishment c. numbering and sequencing
A. DB 60 b. Winchester 15-pin c. smart serial

18. 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?
8
Next-Hop Address
TCP initializes the sequence numbers for the sessions.
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

19. What determines the method of media access control?
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
IP Protocol
Physical
A. media sharing b. logical topology

20. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
A. addressing b. error detection c. frame delimiting
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. Cat5 UTP b. Cat6 UTP
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

21. What is a protocol that provides connectionless network layer services?
A. media sharing b. logical topology
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
It uses support from the lower layers to distinguish between connections to the service.
IP Protocol

22. Why are port numbers included in the TCP header of a segment?
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
Binary ANDing
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.

23. 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?
A. HTTP b. HTTPS
They must wait until the first hosts finish transfering the media.
172.16.192.160
Rollover cable

24. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
255.255.255.0
Originate data flow.
Twisting of the cables

25. If you have a full-duplex operational network - what can happen?
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
No collisions will occur on this link.
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
UTP

26. What do you need to use for an initial configuration on a Cisco router?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Console interface
It does not support encryption.

27. At which layers of the OSI model does ethernet operate?
A. physical layer b. DLL layer
A. goodput b. throughput c. bandwidth
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. DB 60 b. Winchester 15-pin c. smart serial

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

29. 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?
The physical address is added.
The MAC protocol can be very simple.
Network portion
A. show startup-config b. show running-config

30. 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
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
Any device whose backoff timer expires first.
Network

31. 2 characteristics of clients in data networks
A. physical layer b. DLL layer
A. they initiate data exchanges b. they may upload data to servers
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Identify the device that allows local network computers to communicate w/ devices in other networks.

32. Which layer supplies services and allows user interface?
A. performance degradation b. security issues c. host identification
SSH
Application Layer
A physical topology.

33. When a network service fails - which port is most often used to access a router for management purposes?
It provides for the exchange of data over a common local media.
Console
Console interface
Originate data flow.

34. What do the intermediary devices in the network do?
A. goodput b. throughput c. bandwidth
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Ctrl + Shift + 6
A. netstat -r b. route PRINT

35. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
Switch
80 (HTTP)
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
A. addressing b. error detection c. frame delimiting

36. 3 statements of media acess control
IP Protocol
Source and Destination IP address
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
The address of the router that the host will use to 'get to the other side'.

37. What is the primary rope of the physical layer in transmitting data?
A. Physical b. Data Link
Create signals that represent the bits in each frame for the media.
Identify processes or services that are communicating with end devices.
A. Cat5 UTP b. Cat6 UTP

38. What is a default gateway address?

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39. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
8
Network Access
The physical address is added.
Network address

40. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
IP Protocol
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
A. identifies the communicating applications b. identifies multiple conversations between the hosts
A. Physical b. Data Link

41. 3 properties of peer-2-peer applications
OTDR
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. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Show Interfaces

42. What are 3 properties of contention-based media access for a shared media?
A. it has centralized administration b. security is easier to enforce
A. non-deterministic b. less overhead c. collisions exist
Binary ANDing
Network Layer

43. What info is found in the TCP and UDP header info?
Source and Destination Ports
A. perform degradation b. security issues c. host identification
Destination Network Address
A. show startup-config b. show running-config

44. Which characteristics describe fiber optic cable?
Ctrl + Shift + 6
Fiber
To prevent the receiver from being overwhelmed by incoming data.
A. not affected by EMI of RFI b. most expensive type of LAN cabling

45. What type of network cable is used between a terminal and a console port?
Rollover cable
A. enable mode b. priviledge executive mode
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
UTP

46. What characteristic of an UTP helps reduce interference?
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Network Media Control
A. goodput b. throughput c. bandwidth
Twisting of the cables

47. In a connectionless system - What is correct?
Switch
Destination is not contacted before a packet is sent.
To enable a receiving host to forward the data to the appropriate application.
Router(config)# interface FastEthernet 0/1

48. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
The destination host address.
Network Layer
IP is not properly installed

49. What information is added during encapsulation at OSI Layer 3?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Source and Destination IP address
Network Layer Packet
A. Physical b. Data Link

50. If you have a small network w/ 3 computers...
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
Console interface
A. larger address space b. data types and classes of service c. authentication and encryption
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