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. 3 protocols that operate in the application layer
A. DNS b. SMTP c. POP
A. show startup-config b. show running-config
A. the router will discard the packet b. the router will send a time exceeded message to the source host
Supports error detection.

2. 2 characteristics of clients in data networks
A. they initiate data exchanges b. they may upload data to servers
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Switch
Network Access

3. In a connectionless system - What is correct?
A. minimizing of collisions b. division into broadcast domains
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Destination is not contacted before a packet is sent.
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions

4. What is the purpose of the TCP/IP Network Application Layer?
Host A
Identify processes or services that are communicating with end devices.
Network Media Control
The address of the router that the host will use to 'get to the other side'.

5. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
A. Physical b. Data Link
Console
80 (HTTP)
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

6. Network Protocols
To prevent the receiver from being overwhelmed by incoming data.
A default gateway (router).
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
A. addressing b. error detection c. frame delimiting

7. What is a default gateway address?

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

8. Host1 is in the process of setting up a TCP session with Host2. Host1 sent a SYN message to begin establishment - what happens next?
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
Originate data flow.
172.16.192.160
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1

9. Which IP packet field will prevent endless loops?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
Network Media Control
Time-to-live (TTL)
It uses support from the lower layers to distinguish between connections to the service.

10. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
A. application b. presentation c. session d. transmision e. network f. data link g. physical
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Hosts return to listen-before-transmit mode.
TCP initializes the sequence numbers for the sessions.

11. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Host mobility
Logical Link Control sublayer
Supports error detection.
Network Layer

12. What are key considering factors when grouping hosts into common networks?
Flash
Source and Destination Ports
A. purpose b. geographic location c. ownership
The physical address is added.

13. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
Console
Next-Hop Address
When connecting a host to a switch.
Network Layer Packet

14. At which layers of the OSI model does ethernet operate?
UTP
Show Interfaces
A. physical layer b. DLL layer
32 bits

15. 3 facts about the network portion of an IPv4 address
A. replace a switch w/ a router b. subnet the new networks
255.255.255.224
Network Media Control
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet

16. A company is planning to subnet a network w/ 27 hosts. What would be the subnet mask used for this?
8
255.255.255.224
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
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

17. During a TCP session - if packets arrive out of order - what will happen?
RJ-45
The packets will be delivered and reassembled at destination.
Minimal delays in data delivery.
To facilitate the entry and exit of data on media.

18. What is the primary rope of the physical layer in transmitting data?
Create signals that represent the bits in each frame for the media.
A. minimizing of collisions b. division into broadcast domains
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

19. Statements that describe LAN
To prevent the receiver from being overwhelmed by incoming data.
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
Flash
A. next-hop b. metric/interface c. destination network address

20. 3 primary functions of the data link layer encapsulation
A. addressing b. error detection c. frame delimiting
Identify processes or services that are communicating with end devices.
Destination Network Address
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info

21. What is a benefit of a WAN?
Resolve IPv4 addresses to MAC addresses.
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
Host mobility
Console interface

22. What are 2 forms of application layer software?
A random delay helps prevent the stations from experiencing another collision during transmission.
A. application b. services
Network Layer Packet
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

23. Which characteristics describe fiber optic cable?
A. goodput b. throughput c. bandwidth
A. not affected by EMI of RFI b. most expensive type of LAN cabling
It does not support encryption.
A. copper UTP b. optical fiber

24. What is the primary purpose of Layer 4?
A. physical layer b. DLL layer
Identify processes or services that are communicating with end devices.
Application Layer
The destination host address.

25. What describes the purpose of default route?
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
Switch
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
Next-Hop Address

26. What are the advantages of using a client-server model?
A. it has centralized administration b. security is easier to enforce
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
It provides for the exchange of data over a common local media.
To enable a receiving host to forward the data to the appropriate application.

27. What info is found in the TCP and UDP header info?
Host A
Next-Hop Address
A. Cat5 UTP b. Cat6 UTP
Source and Destination Ports

28. What are 2 features of User Diagram Protocol (UDP)?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. physical layer b. DLL layer
A. low overhead b. connectionless
It uses support from the lower layers to distinguish between connections to the service.

29. What application layer protocol is used to support file transfers between client and server?
A. the router will discard the packet b. the router will send a time exceeded message to the source host
Network Layer Packet
FTP
A. not affected by EMI of RFI b. most expensive type of LAN cabling

30. 3 statements about routes and their use
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. identifies the communicating applications b. identifies multiple conversations between the hosts
FTP
Any device whose backoff timer expires first.

31. What is a disadvantage of Telnet?
A. servers b. routers c. network printers
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
It does not support encryption.

32. Where is the IOS file stored at?
Source and Destination IP address
Supports error detection.
Flash
A. physical layer b. DLL layer

33. What is a component of a routing table entry?
Ctrl + Shift + 6
Resolve IPv4 addresses to MAC addresses.
Next-Hop Address
Network Media Control

34. 3 characteristics of valid Ethernet Layer 2 addresses
Logical Link Control sublayer
A. decentralized resources b. resource sharing w/o a dedicated server
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

35. When a network service fails - which port is most often used to access a router for management purposes?
When connecting a host to a switch.
A. the router will discard the packet b. the router will send a time exceeded message to the source host
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Console

36. What makes fiber preferable to copper for interconnecting buildings?
To enable a receiving host to forward the data to the appropriate application.
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
Any device whose backoff timer expires first.
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential

37. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Logical Link Control sublayer
Physical
A. perform degradation b. security issues c. host identification

38. Which portion of the network layer address does a router use to forward packets?
Is used by the server to resolve names.
When connecting a host to a switch.
A. application b. services
Network portion

39. 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. media sharing b. logical topology
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
SMB

40. What determines the method of media access control?
A. media sharing b. logical topology
Rollover cable
Host A
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

41. What statements describe the logical token-passing topology?
A. addressing b. error detection c. frame delimiting
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Is a layer of specific encapsulation.

42. If there is a graphic representation of a company network wiring and equipment - What is this called?
A. low overhead b. connectionless
A physical topology.
Physical
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

43. What method of signal transmission uses radio waves to carry signals?
A. perform degradation b. security issues c. host identification
Wireless
A. goodput b. throughput c. bandwidth
A. router b. firewall

44. 3 terms that define the forms of help available within the Cisco IOS
Time-to-live (TTL)
A. hot keys b. context-sensitive c. command syntax check
A. the router will discard the packet b. the router will send a time exceeded message to the source host
A. identifies the communicating applications b. identifies multiple conversations between the hosts

45. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
Hosts return to listen-before-transmit mode.
IP Protocol
UTP
Show Interfaces

46. When a device is moved from one network to the other...?
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.
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

47. What type of routing uses information that is manually entered into the routing table?
Static
A. identifies the communicating applications b. identifies multiple conversations between the hosts
It provides for the exchange of data over a common local media.
A. they initiate data exchanges b. they may upload data to servers

48. During encapsulation - what happens in the Data Link Layer?
Is a layer of specific encapsulation.
The physical address is added.
A. larger address space b. data types and classes of service c. authentication and encryption
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

49. statements of IP adressing
IP is not properly installed
A. performance degradation b. security issues c. host identification
Identify processes or services that are communicating with end devices.
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

50. What is a characteristic of a logical point-to-point topology?
Physical
Network Access
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
The MAC protocol can be very simple.