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. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Host A
Flash
0 to 1023

2. What 2 type of cables would most commonly be used for new runs?
A. Cat5 UTP b. Cat6 UTP
Ctrl + Shift + 6
A. physical layer b. DLL layer
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

3. If there is a graphic representation of a company network wiring and equipment - What is this called?
A. Cat5 UTP b. Cat6 UTP
A physical topology.
A. hot keys b. context-sensitive c. command syntax check
Console interface

4. What is the proper order of the OSI Layers?
A. flow control b. session establishment c. numbering and sequencing
Network Layer
Supports error detection.
A. application b. presentation c. session d. transmision e. network f. data link g. physical

5. How does the application layer on a server process multiple client requests for services?
It uses support from the lower layers to distinguish between connections to the service.
Console interface
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
To enable a receiving host to forward the data to the appropriate application.

6. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
Router
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. Physical b. Data Link
A. the router will discard the packet b. the router will send a time exceeded message to the source host

7. What do you need to use for an initial configuration on a Cisco router?
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Transport
A. they initiate data exchanges b. they may upload data to servers
Console interface

8. What information is added during encapsulation at OSI Layer 3?
Source and Destination IP address
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
Router(config)# hostname Costas
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

9. What networking devices are recommended to be assigned static IP addresses?
A. goodput b. throughput c. bandwidth
Source Port
A. servers b. routers c. network printers
MAC

10. 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
It uses lasers as the light source.
A. physical layer b. DLL layer
DNS

11. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
Identify processes or services that are communicating with end devices.
Network Layer Packet
It uses support from the lower layers to distinguish between connections to the service.
Is a layer of specific encapsulation.

12. What do the intermediary devices in the network do?
255.255.255.224
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
The packets will be delivered and reassembled at destination.
Next-Hop Address

13. What can get you to an outside network?
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 default gateway (router).
255.255.255.224
RJ-45

14. What are 2 features of User Diagram Protocol (UDP)?
A. application b. services
Network Media Control
A. low overhead b. connectionless
255.255.255.224

15. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Supports error detection.
FTP
Network portion
Switch

16. What does the IEEE 802.2 standard represent in Ethernet technologies?
A. the router will discard the packet b. the router will send a time exceeded message to the source host
Logical Link Control sublayer
Network Layer
Create signals that represent the bits in each frame for the media.

17. Which layer supplies services and allows user interface?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. next-hop b. metric/interface c. destination network address
Application Layer
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

18. What are 2 common characteristics associated w/ dynamic routing protocols?
Create signals that represent the bits in each frame for the media.
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. flow control b. session establishment c. numbering and sequencing

19. 3 terms that define the forms of help available within the Cisco IOS
It provides for the exchange of data over a common local media.
A. hot keys b. context-sensitive c. command syntax check
A. Cat5 UTP b. Cat6 UTP
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1

20. 2 characteristics of peer-2-peer
A. media sharing b. logical topology
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. decentralized resources b. resource sharing w/o a dedicated server
It has expanded adressing capabilities.

21. What command is used to change the default name to 'Costas'?
A. decentralized resources b. resource sharing w/o a dedicated server
Router(config)# hostname Costas
Hosts return to listen-before-transmit mode.
A. application b. presentation c. session d. transmision e. network f. data link g. physical

22. Which combination of keys can be used to interrupt a ping or traceroute process?
A. DB 60 b. Winchester 15-pin c. smart serial
Ctrl + Shift + 6
A. non-deterministic b. less overhead c. collisions exist
UDP

23. Network Protocols
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Ctrl + Shift + 6
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Time-to-live (TTL)

24. An admin needs to keep contents private - which access method should he use?
A. next-hop b. metric/interface c. destination network address
SSH
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
255.255.255.224

25. 3 common problems w/ a large network
The address of the router that the host will use to 'get to the other side'.
A. show startup-config b. show running-config
A. next-hop b. metric/interface c. destination network address
A. performance degradation b. security issues c. host identification

26. What is the role of MTA in handling email?
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
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. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

27. What is a mechanism used by TCP to provide flow control as segments travel from source to destination?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Window Size
The packets will be delivered and reassembled at destination.
A. DNS b. SMTP c. POP

28. What is an automated service that matches resource names w/ required IP addresses?
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
DNS
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. low overhead b. connectionless

29. What is the purpose of the TCP/IP Network Application Layer?
255.255.255.224
Network Media Control
Fiber
A. application b. presentation c. session d. transmision e. network f. data link g. physical

30. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
UTP
Binary ANDing
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

31. What are 3 common problems w/ large networks?
172.16.192.160
A default gateway (router).
A. perform degradation b. security issues c. host identification
Source and Destination IP address

32. To make a console connection from a comp to a Cisco router - what cable should be used?
A backbone cable.
Show Interfaces
Rollover cable
A. next-hop b. metric/interface c. destination network address

33. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
Hub
It has expanded adressing capabilities.
Window Size
It does not support encryption.

34. What can you identify when you examine the Network Layer header?
Network Media Control
The destination host address.
A. goodput b. throughput c. bandwidth
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

35. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
FTP
255.255.255.0
A. netstat -r b. route PRINT
Network Media Control

36. When a network service fails - which port is most often used to access a router for management purposes?
The physical address is added.
Console
A. performance degradation b. security issues c. host identification
Router

37. 3 primary functions of the data link layer encapsulation
0 to 1023
OTDR
Destination Network Address
A. addressing b. error detection c. frame delimiting

38. What is the primary purpose of ARP?
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. MTA b. SMTP
It reduces unnecessary broadcasts.
Resolve IPv4 addresses to MAC addresses.

39. What info is found in the TCP and UDP header info?
Source and Destination Ports
Minimal delays in data delivery.
SSH
A. larger address space b. data types and classes of service c. authentication and encryption

40. During a TCP session - if packets arrive out of order - what will happen?
Network address
It provides for the exchange of data over a common local media.
A. it has centralized administration b. security is easier to enforce
The packets will be delivered and reassembled at destination.

41. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
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. low overhead b. connectionless
MAC
Destination is not contacted before a packet is sent.

42. 2 characteristics of clients in data networks
Switch
Static
A. they initiate data exchanges b. they may upload data to servers
Network Media Control

43. statements of IP adressing
Flash
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
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
SSH

44. 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?
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
2046
A. purpose b. geographic location c. ownership
Time-to-live (TTL)

45. What type of network cable is used between a terminal and a console port?
A. decentralized resources b. resource sharing w/o a dedicated server
Rollover cable
MAC
A. media sharing b. logical topology

46. What is a component of a routing table entry?
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
Next-Hop Address
A. hot keys b. context-sensitive c. command syntax check
Window Size

47. If you have a full-duplex operational network - what can happen?
To facilitate the entry and exit of data on media.
SMB
No collisions will occur on this link.
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

48. What is a drawback of the CSMA/CD access method?
Collisions can decrease network performance.
Signal loss can be experienced.
A backbone cable.
A. identifies the communicating applications b. identifies multiple conversations between the hosts

49. Where is the IOS file stored at?
A physical topology.
A. it has centralized administration b. security is easier to enforce
Flash
Is used by the server to resolve names.

50. 3 facts about the network portion of an IPv4 address
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
DNS
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