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CCNA - 2

Instructions:

Answer 50 questions in 15 minutes.
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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 2 type of cables would most commonly be used for new runs?
A. show startup-config b. show running-config
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. Cat5 UTP b. Cat6 UTP
Host A

2. Which combination of keys can be used to interrupt a ping or traceroute process?
Ctrl + Shift + 6
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
The address of the router that the host will use to 'get to the other side'.
A. next-hop b. metric/interface c. destination network address

3. 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?
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. copper UTP b. optical fiber
Network Layer
8

4. Why are port numbers included in the TCP header of a segment?
To enable a receiving host to forward the data to the appropriate application.
Source and Destination Ports
No collisions will occur on this link.
UDP

5. 3 common problems w/ a large network
A. DB 60 b. Winchester 15-pin c. smart serial
Network Access
A. performance degradation b. security issues c. host identification
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. 2 most commonly used media types in ethernet networks
A. it has centralized administration b. security is easier to enforce
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. copper UTP b. optical fiber
DNS

7. What is the function of the DLL?
DNS
It provides for the exchange of data over a common local media.
Show Interfaces
Console interface

8. When a network service fails - which port is most often used to access a router for management purposes?
Console
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Switch
Network Layer Packet

9. What is PDU?
As the commands are entered.
Router
A. low overhead b. connectionless
Is a layer of specific encapsulation.

10. What are 3 properties of contention-based media access for a shared media?
DNS
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
A. non-deterministic b. less overhead c. collisions exist
Hosts return to listen-before-transmit mode.

11. At which layer of the TCP/IP model does ethernet operate?
A. decentralized resources b. resource sharing w/o a dedicated server
A random delay helps prevent the stations from experiencing another collision during transmission.
Network Access
A. servers b. routers c. network printers

12. 3 features that allow TCP to realibly and accurately track the transmission of data
A. flow control b. session establishment c. numbering and sequencing
Network Layer Packet
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
RJ-45

13. 3 facts about the network portion of an IPv4 address
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Identify processes or services that are communicating with end devices.
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

14. What do you need to use for an initial configuration on a Cisco router?
A. Physical b. Data Link
Console interface
The MAC protocol can be very simple.
A. purpose b. geographic location c. ownership

15. What device can check for faults - integrity and performance of media?
OTDR
Twisting of the cables
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Source Port

16. What is the purpose of resource records in DNS?
Minimal delays in data delivery.
IP Protocol
Is used by the server to resolve names.
RJ-45

17. What are 2 common characteristics associated w/ dynamic routing protocols?
A. copper UTP b. optical fiber
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Network address
Hub

18. Important characteristic of UDP
Minimal delays in data delivery.
A. perform degradation b. security issues c. host identification
A. media sharing b. logical topology
When connecting a host to a switch.

19. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
A. enable mode b. priviledge executive mode
The physical address is added.
A. minimizing of collisions b. division into broadcast domains
Is a layer of specific encapsulation.

20. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
2046
Signal loss can be experienced.
SMB
A. flow control b. session establishment c. numbering and sequencing

21. Where is the IOS file stored at?
Switch
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
Network Layer
Flash

22. 2 characteristics of peer-2-peer
A. minimizing of collisions b. division into broadcast domains
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
A. DB 60 b. Winchester 15-pin c. smart serial
A. decentralized resources b. resource sharing w/o a dedicated server

23. 3 features of IPv6
A. larger address space b. data types and classes of service c. authentication and encryption
A. replace a switch w/ a router b. subnet the new networks
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
Network Layer

24. What are 2 forms of application layer software?
Resolve IPv4 addresses to MAC addresses.
Collisions can decrease network performance.
A. application b. services
The packets will be delivered and reassembled at destination.

25. 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?
A. copper UTP b. optical fiber
To prevent the receiver from being overwhelmed by incoming data.
172.16.192.160
Supports error detection.

26. 3 properties of peer-2-peer applications
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
The packets will be delivered and reassembled at destination.
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. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations

27. If you have a small network w/ 3 computers...
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
Resolve IPv4 addresses to MAC addresses.
A. show startup-config b. show running-config
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

28. What is the primary purpose of ARP?
The address of the router that the host will use to 'get to the other side'.
Physical
A. media sharing b. logical topology
Resolve IPv4 addresses to MAC addresses.

29. To make a console connection from a comp to a Cisco router - what cable should be used?
Rollover cable
Originate data flow.
Window Size
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

30. What correctly describes a MAC address?
A. servers b. routers c. network printers
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
Application Layer
A. next-hop b. metric/interface c. destination network address

31. statements of IP adressing
A. non-deterministic b. less overhead c. collisions exist
A. perform degradation b. security issues c. host identification
It reduces unnecessary broadcasts.
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

32. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
Flash
UTP
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
It provides for the exchange of data over a common local media.

33. After a browser makes a request to a web server in the standard port - what will be the port number in the TCP header?
A. copper UTP b. optical fiber
80 (HTTP)
Network Media Control
To facilitate the entry and exit of data on media.

34. What is the proper order of the OSI Layers?
0 to 1023
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
A. they initiate data exchanges b. they may upload data to servers
A. application b. presentation c. session d. transmision e. network f. data link g. physical

35. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
A default gateway (router).
The address of the router that the host will use to 'get to the other side'.
Switch
Ctrl + Shift + 6

36. 2 characteristics of clients in data networks
A. physical layer b. DLL layer
A. replace a switch w/ a router b. subnet the new networks
Switch
A. they initiate data exchanges b. they may upload data to servers

37. Group of hosts that have identical bit patterns in the high order bits of their addresses
Network
Wireless
It provides for the exchange of data over a common local media.
A. minimizing of collisions b. division into broadcast domains

38. What is the primary function of encapsulating packets into frames?
To facilitate the entry and exit of data on media.
A default gateway (router).
A. goodput b. throughput c. bandwidth
2046

39. When do changes take effect in a Cisco router?
As the commands are entered.
Network Media Control
172.16.192.160
UDP

40. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
A. DNS b. SMTP c. POP
Network Layer Packet
Network Layer
Rollover cable

41. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
A. copper UTP b. optical fiber
32 bits
0 to 1023
2046

42. Which sublayer of the DLL prepares a signal to be transmitted at the physical layer?
32 bits
TCP initializes the sequence numbers for the sessions.
MAC
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations

43. There are too many broadcasts on switches - what can be done?
A. replace a switch w/ a router b. subnet the new networks
A default gateway (router).
Network address
It uses lasers as the light source.

44. What command is used to change the default name to 'Costas'?
A. show startup-config b. show running-config
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. not affected by EMI of RFI b. most expensive type of LAN cabling
Router(config)# hostname Costas

45. If you have a full-duplex operational network - what can happen?
No collisions will occur on this link.
80 (HTTP)
Supports error detection.
Binary ANDing

46. What type of network cable is used between a terminal and a console port?
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
Rollover cable
A. Cat5 UTP b. Cat6 UTP
MAC

47. What is a characteristic of a logical point-to-point topology?
UTP
RJ-45
The MAC protocol can be very simple.
A. physical layer b. DLL layer

48. What can get you to an outside network?
Minimal delays in data delivery.
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
Hosts return to listen-before-transmit mode.
A default gateway (router).

49. What info is found in the TCP and UDP header info?
Network Layer
A. the router will discard the packet b. the router will send a time exceeded message to the source host
Source and Destination Ports
Static

50. 3 statements about the role of routers in the network
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Destination is not contacted before a packet is sent.
Collisions can decrease network performance.
Network Access

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CCNA - 2

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