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 device is used to create or divide broadcast domains?
Console
Router
80 (HTTP)
A random delay helps prevent the stations from experiencing another collision during transmission.

2. What are 2 protocols for transfering web resources?
A. servers b. routers c. network printers
A. HTTP b. HTTPS
Binary ANDing
Router(config)# hostname Costas

3. What makes fiber preferable to copper for interconnecting buildings?
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
Hosts return to listen-before-transmit mode.
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

4. What are 3 pieces of info about a route contained in a routing table?
A. next-hop b. metric/interface c. destination network address
Application Layer
UDP
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

5. Which 2 options represent Layer 4 addressing?
Supports error detection.
A. identifies the communicating applications b. identifies multiple conversations between the hosts
Console
Static

6. 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.
Router(config)# hostname Costas
Any device whose backoff timer expires first.
A. flow control b. session establishment c. numbering and sequencing

7. A company is planning to subnet a network w/ 27 hosts. What would be the subnet mask used for this?
255.255.255.224
Signal loss can be experienced.
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. netstat -r b. route PRINT

8. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
Console interface
FTP
Source Port
A. Physical b. Data Link

9. At which layer of the TCP/IP model does ethernet operate?
Network Access
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
Rollover cable
To prevent the receiver from being overwhelmed by incoming data.

10. Group of hosts that have identical bit patterns in the high order bits of their addresses
A. application b. services
Console
Network address
Network

11. What describes the purpose of default route?
Rollover cable
8
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
A. identifies the communicating applications b. identifies multiple conversations between the hosts

12. Which portion of the network layer address does a router use to forward packets?
A. addressing b. error detection c. frame delimiting
Is used by the server to resolve names.
Network portion
A. the router will discard the packet b. the router will send a time exceeded message to the source host

13. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
Next-Hop Address
2046
To enable a receiving host to forward the data to the appropriate application.
SMB

14. If you have a small network w/ 3 computers...
Flash
The physical address is added.
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
Supports error detection.

15. What are key considering factors when grouping hosts into common networks?
A. low overhead b. connectionless
A. larger address space b. data types and classes of service c. authentication and encryption
A. purpose b. geographic location c. ownership
Switch

16. When a device is moved from one network to the other...?
Host mobility
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. 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
The MAC protocol can be very simple.

17. 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?
A. DB 60 b. Winchester 15-pin c. smart serial
Twisting of the cables
A. show startup-config b. show running-config
To prevent the receiver from being overwhelmed by incoming data.

18. What is a component of a routing table entry?
Identify the device that allows local network computers to communicate w/ devices in other networks.
Supports error detection.
Source and Destination IP address
Next-Hop Address

19. statements of IP adressing
A. addressing b. error detection c. frame delimiting
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
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
SSH

20. 2 characteristics of peer-2-peer
A. decentralized resources b. resource sharing w/o a dedicated server
Logical Link Control sublayer
TCP initializes the sequence numbers for the sessions.
Identify the device that allows local network computers to communicate w/ devices in other networks.

21. What event occurs during the 3-way handshake?
A. Physical b. Data Link
To facilitate the entry and exit of data on media.
TCP initializes the sequence numbers for the sessions.
As the commands are entered.

22. In business LANs - which connector is used w/ twisted-pair networking cable?
RJ-45
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
OTDR
To prevent the receiver from being overwhelmed by incoming data.

23. 3 properties of peer-2-peer applications
Any device whose backoff timer expires first.
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. HTTP b. HTTPS
Network portion

24. When destination network is not in the routing table - What are 2 actions the router might take?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. they initiate data exchanges b. they may upload data to servers
A. application b. services
A. non-deterministic b. less overhead c. collisions exist

25. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
Destination Network Address
A. enable mode b. priviledge executive mode
A. Cat5 UTP b. Cat6 UTP
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

26. What are 2 features of User Diagram Protocol (UDP)?
A. low overhead b. connectionless
It uses support from the lower layers to distinguish between connections to the service.
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. enable mode b. priviledge executive mode

27. What is PDU?
A. netstat -r b. route PRINT
Is a layer of specific encapsulation.
A random delay helps prevent the stations from experiencing another collision during transmission.
Twisting of the cables

28. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
Rollover cable
Wireless
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
IP is not properly installed

29. In an IPv4 environment - what information is used by the router to forward data packets from one interface of a router to another?
OTDR
UDP
Destination Network Address
Router(config)# interface FastEthernet 0/1

30. 3 statements of media acess control
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
8
A. purpose b. geographic location c. ownership
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

31. What info is found in the TCP and UDP header info?
The magnetic field around the adjacent pairs of wire.
Network Access
Source and Destination Ports
32 bits

32. How many bits make up an IPv4 address?
IP Protocol
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
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

33. When a network service fails - which port is most often used to access a router for management purposes?
Host mobility
A. goodput b. throughput c. bandwidth
Console
MAC

34. When do changes take effect in a Cisco router?
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
Minimal delays in data delivery.
As the commands are entered.
The physical address is added.

35. 2 characteristics of clients in data networks
A. they initiate data exchanges b. they may upload data to servers
A. media sharing b. logical topology
Router(config)# interface FastEthernet 0/1
Show Interfaces

36. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
A. replace a switch w/ a router b. subnet the new networks
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
Hosts return to listen-before-transmit mode.
Switch

37. What statements describe the logical token-passing topology?
Network
Is used by the server to resolve names.
32 bits
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

38. What application layer protocol is used to support file transfers between client and server?
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
FTP
Destination Network Address

39. What are 2 forms of application layer software?
A. flow control b. session establishment c. numbering and sequencing
SMB
A. application b. services
Destination Network Address

40. Intermediary devices used to implement security between networks
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. router b. firewall
Hosts return to listen-before-transmit mode.
IP Protocol

41. What method of signal transmission uses radio waves to carry signals?
FTP
Wireless
IP Protocol
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

42. What is an effect of improperly applying a network cable connector?
Fiber
Network Layer Packet
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Signal loss can be experienced.

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.
Ctrl + Shift + 6
Router(config)# interface FastEthernet 0/1
A. the router will discard the packet b. the router will send a time exceeded message to the source host

44. What layer encapsulates segments into packets?
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
It provides for the exchange of data over a common local media.
No collisions will occur on this link.
Network Layer

45. What is dinamically selected by the source host when forwarding data?
A physical topology.
Resolve IPv4 addresses to MAC addresses.
A. DB 60 b. Winchester 15-pin c. smart serial
Source Port

46. What is a default gateway address?

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47. What 2 type of cables would most commonly be used for new runs?
Show Interfaces
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. purpose b. geographic location c. ownership
A. Cat5 UTP b. Cat6 UTP

48. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Window Size
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. router b. firewall
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

49. What can you identify when you examine the Network Layer header?
A. DB 60 b. Winchester 15-pin c. smart serial
A. copper UTP b. optical fiber
The destination host address.
Transport

50. What correctly describes a MAC address?
IP is not properly installed
A. decentralized resources b. resource sharing w/o a dedicated server
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
Console