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 dinamically selected by the source host when forwarding data?
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
Source Port
Twisting of the cables
No collisions will occur on this link.

2. 2 functions of encapsulation
0 to 1023
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. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info

3. 2 characteristics of peer-2-peer
Minimal delays in data delivery.
SSH
A. decentralized resources b. resource sharing w/o a dedicated server
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

4. What is the primary reason for developing IPv6?
Host A
It has expanded adressing capabilities.
TCP initializes the sequence numbers for the sessions.
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

5. When a collision occurs using CSMA/CD - how do hosts w/ data to transmit respond after the backoff period expires?
A. media sharing b. logical topology
OTDR
DNS
Hosts return to listen-before-transmit mode.

6. What can you identify when you examine the Network Layer header?
Network portion
The destination host address.
A. performance degradation b. security issues c. host identification
DNS

7. Which type of cable is most often associated w/ fiber-optic cable?
Is a layer of specific encapsulation.
Ctrl + Shift + 6
A backbone cable.
32 bits

8. What command will you use to place the router into the correct mode to configure an appropiate interface to connect a LAN?
Router(config)# interface FastEthernet 0/1
Host mobility
Router(config)# hostname Costas
Any device whose backoff timer expires first.

9. Default Gateway is incorrect on the host - What is the impact on the communications?
Any device whose backoff timer expires first.
A. performance degradation b. security issues c. host identification
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
0 to 1023

10. What is a benefit of a WAN?
IP is not properly installed
Host mobility
A. copper UTP b. optical fiber
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

11. Which IP packet field will prevent endless loops?
Time-to-live (TTL)
A. copper UTP b. optical fiber
A. it has centralized administration b. security is easier to enforce
Destination is not contacted before a packet is sent.

12. What command can be used to determine if the router has experienced any input or output errors?
The address of the router that the host will use to 'get to the other side'.
Show Interfaces
Hub
Any device whose backoff timer expires first.

13. What do the intermediary devices in the network do?
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
SMB
Twisting of the cables
It uses lasers as the light source.

14. To make a console connection from a comp to a Cisco router - what cable should be used?
IP is not properly installed
No collisions will occur on this link.
A. HTTP b. HTTPS
Rollover cable

15. What are 3 pieces of info about a route contained in a routing table?
A. physical layer b. DLL layer
A. next-hop b. metric/interface c. destination network address
SSH
They must wait until the first hosts finish transfering the media.

16. What are 2 features of User Diagram Protocol (UDP)?
TCP initializes the sequence numbers for the sessions.
A. low overhead b. connectionless
A. DB 60 b. Winchester 15-pin c. smart serial
It provides for the exchange of data over a common local media.

17. How does the application layer on a server process multiple client requests for services?
Originate data flow.
A physical topology.
It uses support from the lower layers to distinguish between connections to the service.
A backbone cable.

18. What event occurs during the 3-way handshake?
TCP initializes the sequence numbers for the sessions.
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
80 (HTTP)
A. MTA b. SMTP

19. What characteristic of an UTP helps reduce interference?
The packets will be delivered and reassembled at destination.
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
Twisting of the cables
Any device whose backoff timer expires first.

20. What info is found in the TCP and UDP header info?
Flash
A physical topology.
Originate data flow.
Source and Destination Ports

21. What is a default gateway address?

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

22. What is the primary purpose of Layer 4?
A. minimizing of collisions b. division into broadcast domains
To enable a receiving host to forward the data to the appropriate application.
It provides interface between applications on either end of the network.
Identify processes or services that are communicating with end devices.

23. 3 functions of the upper data link sublayer in the OSI model
Network Access
Network Layer
A. servers b. routers c. network printers
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

24. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
Network Layer Packet
Console interface
Rollover cable
When connecting a host to a switch.

25. 3 measures of data transfer
No collisions will occur on this link.
It has expanded adressing capabilities.
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. goodput b. throughput c. bandwidth

26. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
255.255.255.0
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
A. Physical b. Data Link
They must wait until the first hosts finish transfering the media.

27. Where is the IOS file stored at?
As the commands are entered.
Network Layer Packet
Flash
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

28. What can be a problem that is reduced by adding end-to-end addressing?
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
Collisions can decrease network performance.
It reduces unnecessary broadcasts.
A. DNS b. SMTP c. POP

29. What type of routing uses information that is manually entered into the routing table?
To facilitate the entry and exit of data on media.
Static
Resolve IPv4 addresses to MAC addresses.
Flash

30. Which combination of keys can be used to interrupt a ping or traceroute process?
A. media sharing b. logical topology
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Ctrl + Shift + 6
Console

31. At which layers of the OSI model does ethernet operate?
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
As the commands are entered.
A. physical layer b. DLL layer
Binary ANDing

32. During a TCP session - if packets arrive out of order - what will happen?
The packets will be delivered and reassembled at destination.
Create signals that represent the bits in each frame for the media.
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A random delay helps prevent the stations from experiencing another collision during transmission.

33. 3 features of IPv6
A. replace a switch w/ a router b. subnet the new networks
A. it has centralized administration b. security is easier to enforce
A. larger address space b. data types and classes of service c. authentication and encryption
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info

34. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
A. media sharing b. logical topology
No collisions will occur on this link.
Network address
Network Media Control

35. What are the advantages of using a client-server model?
A. it has centralized administration b. security is easier to enforce
As the commands are entered.
2046
Source Port

36. If you have a small network w/ 3 computers...
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
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
It uses support from the lower layers to distinguish between connections to the service.
Network Layer

37. An admin needs to keep contents private - which access method should he use?
SSH
A. DB 60 b. Winchester 15-pin c. smart serial
Rollover cable
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info

38. After a browser makes a request to a web server in the standard port - what will be the port number in the TCP header?
80 (HTTP)
A. addressing b. error detection c. frame delimiting
The address of the router that the host will use to 'get to the other side'.
A. not affected by EMI of RFI b. most expensive type of LAN cabling

39. What connectors are commonly associated w/ Cisco's V.35 serial cables?
The address of the router that the host will use to 'get to the other side'.
A physical topology.
A. DB 60 b. Winchester 15-pin c. smart serial
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

40. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
Network Access
Create signals that represent the bits in each frame for the media.
MAC
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

41. What do end devices do?
Originate data flow.
Window Size
A. DB 60 b. Winchester 15-pin c. smart serial
Show Interfaces

42. If there is a graphic representation of a company network wiring and equipment - What is this called?
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
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 physical topology.
Physical

43. When a device is moved from one network to the other...?
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
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. router discards the packet b. router forwards the packet out the interface indicated in the route entry
The physical address is added.

44. 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?
Create signals that represent the bits in each frame for the media.
A. enable mode b. priviledge executive mode
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
8

45. What are key considering factors when grouping hosts into common networks?
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Physical
A. perform degradation b. security issues c. host identification
A. purpose b. geographic location c. ownership

46. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?
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
Physical
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. router b. firewall

47. In business LANs - which connector is used w/ twisted-pair networking cable?
RJ-45
A. goodput b. throughput c. bandwidth
Switch
A. decentralized resources b. resource sharing w/o a dedicated server

48. 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. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
No collisions will occur on this link.
SMB

49. 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?
Rollover cable
Flash
Host mobility
Host A

50. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
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. the router will discard the packet b. the router will send a time exceeded message to the source host
Transport