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 is the name of the application layer protocol used for file sharing on Microsoft Networks?
SMB
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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. Physical b. Data Link

2. What are 3 pieces of info about a route contained in a routing table?
Identify processes or services that are communicating with end devices.
To facilitate the entry and exit of data on media.
A. next-hop b. metric/interface c. destination network address
A. they initiate data exchanges b. they may upload data to servers

3. To make a console connection from a comp to a Cisco router - what cable should be used?
A. next-hop b. metric/interface c. destination network address
A. they initiate data exchanges b. they may upload data to servers
Rollover cable
Resolve IPv4 addresses to MAC addresses.

4. 3 features that allow TCP to realibly and accurately track the transmission of data
Is a layer of specific encapsulation.
A. flow control b. session establishment c. numbering and sequencing
Application Layer
A. application b. services

5. What is PDU?
A. MTA b. SMTP
2046
Router
Is a layer of specific encapsulation.

6. 3 measures of data transfer
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
IP Protocol
A. goodput b. throughput c. bandwidth
It uses support from the lower layers to distinguish between connections to the service.

7. 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?
Router(config)# interface FastEthernet 0/1
MAC
It has expanded adressing capabilities.
2046

8. In a connectionless system - What is correct?
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Rollover cable
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Destination is not contacted before a packet is sent.

9. Which portion of the network layer address does a router use to forward packets?
UTP
Network portion
A. show startup-config b. show running-config
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

10. What can you identify when you examine the Network Layer header?
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
A. performance degradation b. security issues c. host identification
The destination host address.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

11. 3 features of IPv6
Create signals that represent the bits in each frame for the media.
Hosts return to listen-before-transmit mode.
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. larger address space b. data types and classes of service c. authentication and encryption

12. What is the proper order of the OSI Layers?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
255.255.255.0
Is used by the server to resolve names.
To facilitate the entry and exit of data on media.

13. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Is used by the server to resolve names.
MAC
A. application b. services

14. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
MAC
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
32 bits
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

15. What is a mechanism used by TCP to provide flow control as segments travel from source to destination?
Show Interfaces
Window Size
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Wireless

16. In business LANs - which connector is used w/ twisted-pair networking cable?
A. purpose b. geographic location c. ownership
Originate data flow.
80 (HTTP)
RJ-45

17. What can be a problem that is reduced by adding end-to-end addressing?
The magnetic field around the adjacent pairs of wire.
A. servers b. routers c. network printers
It reduces unnecessary broadcasts.
A. MTA b. SMTP

18. After an ethernet collision - which device has priority to transmit data?
Any device whose backoff timer expires first.
A. netstat -r b. route PRINT
A. low overhead b. connectionless
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations

19. Which characteristics describe fiber optic cable?
A. HTTP b. HTTPS
SSH
A. not affected by EMI of RFI b. most expensive type of LAN cabling
The MAC protocol can be very simple.

20. What command is used to change the default name to 'Costas'?
RJ-45
Router(config)# hostname Costas
Static
A. media sharing b. logical topology

21. Network Protocols
Network Layer Packet
Destination is not contacted before a packet is sent.
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

22. What is the primary purpose of ARP?
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. larger address space b. data types and classes of service c. authentication and encryption
Resolve IPv4 addresses to MAC addresses.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

23. What is a benefit of a WAN?
Switch
Host mobility
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

24. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
Rollover cable
255.255.255.0
A. Physical b. Data Link
Network Layer Packet

25. 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.
A. application b. services
A. Physical b. Data Link
To facilitate the entry and exit of data on media.

26. What kind of problems are caused by excessive broadcast traffic on network segments?
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
Is a layer of specific encapsulation.
A. decentralized resources b. resource sharing w/o a dedicated server
Wireless

27. 3 terms that define the forms of help available within the Cisco IOS
It provides interface between applications on either end of the network.
A. physical layer b. DLL layer
A. hot keys b. context-sensitive c. command syntax check
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28. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
Application Layer
Destination Network Address
A. media sharing b. logical topology
Switch

29. 2 features that make switches preferable to hubs
Hosts return to listen-before-transmit mode.
A. minimizing of collisions b. division into broadcast domains
A. router b. firewall
SMB

30. When a device is moved from one network to the other...?
MAC
32 bits
255.255.255.224
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

31. What do end devices do?
Originate data flow.
A. low overhead b. connectionless
A. hot keys b. context-sensitive c. command syntax check
Signal loss can be experienced.

32. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
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
The magnetic field around the adjacent pairs of wire.
Transport
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

33. What type of routing uses information that is manually entered into the routing table?
The address of the router that the host will use to 'get to the other side'.
A. copper UTP b. optical fiber
Static
Identify processes or services that are communicating with end devices.

34. There are too many broadcasts on switches - what can be done?
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Console
It has expanded adressing capabilities.
A. replace a switch w/ a router b. subnet the new networks

35. What is dinamically selected by the source host when forwarding data?
Router
A default gateway (router).
Source Port
Fiber

36. What correctly describes a MAC address?
It uses support from the lower layers to distinguish between connections to the service.
A. show startup-config b. show running-config
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
Identify the device that allows local network computers to communicate w/ devices in other networks.

37. 3 factors that should be considered when implementing Layer 2 protocols
A. not affected by EMI of RFI b. most expensive type of LAN cabling
Application Layer
A. Cat5 UTP b. Cat6 UTP
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

38. How does the application layer on a server process multiple client requests for services?
Destination Network Address
Host mobility
It uses support from the lower layers to distinguish between connections to the service.
RJ-45

39. Which 2 options represent Layer 4 addressing?
Application Layer
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. identifies the communicating applications b. identifies multiple conversations between the hosts

40. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
A. netstat -r b. route PRINT
As the commands are entered.
No collisions will occur on this link.
Fiber

41. How many bits make up an IPv4 address?
Network Layer
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
32 bits
A. goodput b. throughput c. bandwidth

42. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?
A. servers b. routers c. network printers
Physical
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
To enable a receiving host to forward the data to the appropriate application.

43. What command will you use to place the router into the correct mode to configure an appropiate interface to connect a LAN?
Identify the device that allows local network computers to communicate w/ devices in other networks.
Router(config)# interface FastEthernet 0/1
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Application Layer

44. What are 2 common characteristics associated w/ dynamic routing protocols?
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
A. Cat5 UTP b. Cat6 UTP
Physical

45. At which layer of the TCP/IP model does ethernet operate?
Network Access
Host mobility
A. application b. services
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

46. Which type of cable is most often associated w/ fiber-optic cable?
It reduces unnecessary broadcasts.
A. larger address space b. data types and classes of service c. authentication and encryption
A backbone cable.
Rollover cable

47. What is the primary purpose of Layer 4?
Identify processes or services that are communicating with end devices.
IP Protocol
To prevent the receiver from being overwhelmed by incoming data.
They must wait until the first hosts finish transfering the media.

48. What does the IEEE 802.2 standard represent in Ethernet technologies?
A. DB 60 b. Winchester 15-pin c. smart serial
A physical topology.
Logical Link Control sublayer
A. MTA b. SMTP

49. What causes crosstalk within cable pairs when using UTP?
A. application b. services
A. physical layer b. DLL layer
A. Cat5 UTP b. Cat6 UTP
The magnetic field around the adjacent pairs of wire.

50. Group of hosts that have identical bit patterns in the high order bits of their addresses
Create signals that represent the bits in each frame for the media.
Network
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. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment