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. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
MAC
IP Protocol
A. they initiate data exchanges b. they may upload data to servers
It uses support from the lower layers to distinguish between connections to the service.

2. 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?
Network Layer Packet
They must wait until the first hosts finish transfering the media.
Router(config)# hostname Costas
It does not support encryption.

3. What networking devices are recommended to be assigned static IP addresses?
A. servers b. routers c. network printers
Static
DNS
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet

4. What type of routing uses information that is manually entered into the routing table?
A. Cat5 UTP b. Cat6 UTP
Rollover cable
It uses lasers as the light source.
Static

5. An admin needs to keep contents private - which access method should he use?
SSH
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. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
Host mobility

6. What method of signal transmission uses radio waves to carry signals?
A. low overhead b. connectionless
Wireless
A. non-deterministic b. less overhead c. collisions exist
A physical topology.

7. What are the advantages of using a client-server model?
Host A
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. it has centralized administration b. security is easier to enforce
Rollover cable

8. What connectors are commonly associated w/ Cisco's V.35 serial cables?
Create signals that represent the bits in each frame for the media.
When connecting a host to a switch.
A. netstat -r b. route PRINT
A. DB 60 b. Winchester 15-pin c. smart serial

9. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
Transport
8
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
172.16.192.160

10. After an ethernet collision - which device has priority to transmit data?
Destination Network Address
IP is not properly installed
Any device whose backoff timer expires first.
A. performance degradation b. security issues c. host identification

11. What is a default gateway address?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

12. What command is used to change the default name to 'Costas'?
Static
A. flow control b. session establishment c. numbering and sequencing
Switch
Router(config)# hostname Costas

13. What is the primary rope of the physical layer in transmitting data?
It uses support from the lower layers to distinguish between connections to the service.
DNS
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.

14. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
A. non-deterministic b. less overhead c. collisions exist
Physical
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

15. 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?
Router(config)# hostname Costas
To facilitate the entry and exit of data on media.
Signal loss can be experienced.
172.16.192.160

16. 2 most commonly used media types in ethernet networks
Switch
A. copper UTP b. optical fiber
Host A
Ctrl + Shift + 6

17. What is a disadvantage of Telnet?
It does not support encryption.
DNS
32 bits
0 to 1023

18. What is a characteristic of a logical point-to-point topology?
Wireless
Resolve IPv4 addresses to MAC addresses.
32 bits
The MAC protocol can be very simple.

19. What is a protocol that provides connectionless network layer services?
Wireless
Hub
Network Layer Packet
IP Protocol

20. In business LANs - which connector is used w/ twisted-pair networking cable?
It provides interface between applications on either end of the network.
RJ-45
UDP
A. show startup-config b. show running-config

21. What is the primary function of encapsulating packets into frames?
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
The address of the router that the host will use to 'get to the other side'.
A. Physical b. Data Link
To facilitate the entry and exit of data on media.

22. 3 characteristics of valid Ethernet Layer 2 addresses
Window Size
Binary ANDing
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
OTDR

23. What characteristic of an UTP helps reduce interference?
Twisting of the cables
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
OTDR
Source Port

24. 3 statements about the role of routers in the network
A physical topology.
Rollover cable
Minimal delays in data delivery.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet

25. What does the IEEE 802.2 standard represent in Ethernet technologies?
A. next-hop b. metric/interface c. destination network address
The MAC protocol can be very simple.
Logical Link Control sublayer
Resolve IPv4 addresses to MAC addresses.

26. In an IPv4 environment - what information is used by the router to forward data packets from one interface of a router to another?
A. hot keys b. context-sensitive c. command syntax check
Next-Hop Address
Destination Network Address
A. HTTP b. HTTPS

27. Where is the IOS file stored at?
Network Access
A. servers b. routers c. network printers
It provides for the exchange of data over a common local media.
Flash

28. 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. addressing b. error detection c. frame delimiting
Network
No collisions will occur on this link.

29. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
32 bits
IP is not properly installed
A. application b. services
Rollover cable

30. What is the primary purpose of Layer 4?
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
80 (HTTP)
0 to 1023
Identify processes or services that are communicating with end devices.

31. When destination network is not in the routing table - What are 2 actions the router might take?
A. DB 60 b. Winchester 15-pin c. smart serial
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
It uses support from the lower layers to distinguish between connections to the service.
A. DNS b. SMTP c. POP

32. During a TCP session - if packets arrive out of order - what will happen?
The packets will be delivered and reassembled at destination.
Identify processes or services that are communicating with end devices.
A physical topology.
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

33. What is a mechanism used by TCP to provide flow control as segments travel from source to destination?
Window Size
Network portion
A. not affected by EMI of RFI b. most expensive type of LAN cabling
A. addressing b. error detection c. frame delimiting

34. 3 factors that should be considered when implementing Layer 2 protocols
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
Source Port
A random delay helps prevent the stations from experiencing another collision during transmission.
Is a layer of specific encapsulation.

35. Which type of cable is most often associated w/ fiber-optic cable?
Console interface
A backbone cable.
Fiber
Next-Hop Address

36. If you have a full-duplex operational network - what can happen?
It provides for the exchange of data over a common local media.
No collisions will occur on this link.
The packets will be delivered and reassembled at destination.
A physical topology.

37. What info is found in the TCP and UDP header info?
A. hot keys b. context-sensitive c. command syntax check
Source and Destination Ports
Rollover cable
IP is not properly installed

38. What is the proper order of the OSI Layers?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
A. low overhead b. connectionless
Rollover cable

39. What layer encapsulates segments into packets?
When connecting a host to a switch.
A backbone cable.
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Network Layer

40. What is the purpose of the preamble in an ethernet frame?
Network address
A default gateway (router).
As the commands are entered.
It is used for timing synchronization w/ alternating patterns of 1s and 0s.

41. 3 common problems w/ a large network
Fiber
FTP
Resolve IPv4 addresses to MAC addresses.
A. performance degradation b. security issues c. host identification

42. During encapsulation - what happens in the Data Link Layer?
To prevent the receiver from being overwhelmed by incoming data.
No collisions will occur on this link.
Is used by the server to resolve names.
The physical address is added.

43. 3 measures of data transfer
It has expanded adressing capabilities.
SMB
Source and Destination IP address
A. goodput b. throughput c. bandwidth

44. What is the role of the OSI Application Layer?
To prevent the receiver from being overwhelmed by incoming data.
It provides interface between applications on either end of the network.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
2046

45. When a device is moved from one network to the other...?
The physical address is added.
Is used by the server to resolve names.
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
Next-Hop Address

46. Which 2 options represent Layer 4 addressing?
Host A
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. identifies the communicating applications b. identifies multiple conversations between the hosts
8

47. What are 2 commands used to view a host routing table?
A. netstat -r b. route PRINT
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. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
Twisting of the cables

48. Which portion of the network layer address does a router use to forward packets?
UTP
Window Size
Network portion
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

49. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
A. copper UTP b. optical fiber
Static
0 to 1023
It uses lasers as the light source.

50. What is the primary purpose of ARP?
Host mobility
A. application b. services
Resolve IPv4 addresses to MAC addresses.
A. application b. presentation c. session d. transmision e. network f. data link g. physical