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. After an ethernet collision - which device has priority to transmit data?
Host A
A physical topology.
A random delay helps prevent the stations from experiencing another collision during transmission.
Any device whose backoff timer expires first.

2. What command is used to change the default name to 'Costas'?
OTDR
Router(config)# hostname Costas
A. next-hop b. metric/interface c. destination network address
Signal loss can be experienced.

3. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
SMB
A. enable mode b. priviledge executive mode
UTP
Fiber

4. What does the IEEE 802.2 standard represent in Ethernet technologies?
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Source and Destination IP address
Network Layer Packet
Logical Link Control sublayer

5. 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?
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
A. show startup-config b. show running-config
A. physical layer b. DLL layer
Flash

6. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
Hub
Identify processes or services that are communicating with end devices.
Host mobility
255.255.255.0

7. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Source and Destination IP address
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
UDP

8. What event occurs during the 3-way handshake?
TCP initializes the sequence numbers for the sessions.
OTDR
Router
Any device whose backoff timer expires first.

9. What application layer protocol is used to support file transfers between client and server?
A. minimizing of collisions b. division into broadcast domains
32 bits
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
FTP

10. What are 2 features of User Diagram Protocol (UDP)?
The physical address is added.
UTP
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
A. low overhead b. connectionless

11. 3 statements about the role of routers in the network
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
FTP
A random delay helps prevent the stations from experiencing another collision during transmission.

12. Network Protocols
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
Any device whose backoff timer expires first.
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
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

13. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
Flash
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
Fiber
Next-Hop Address

14. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
255.255.255.0
Network Layer Packet
Host A

15. 3 functions of the upper data link sublayer in the OSI model
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Originate data flow.
SMB
FTP

16. 3 terms that define the forms of help available within the Cisco IOS
IP is not properly installed
A. perform degradation b. security issues c. host identification
Network Media Control
A. hot keys b. context-sensitive c. command syntax check

17. 3 statements of media acess control
Switch
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
TCP initializes the sequence numbers for the sessions.
A. they initiate data exchanges b. they may upload data to servers

18. What are 2 forms of application layer software?
Physical
Supports error detection.
A. performance degradation b. security issues c. host identification
A. application b. services

19. 3 features of IPv6
Network address
The address of the router that the host will use to 'get to the other side'.
A. larger address space b. data types and classes of service c. authentication and encryption
A. minimizing of collisions b. division into broadcast domains

20. Which layer supplies services and allows user interface?
A. they initiate data exchanges b. they may upload data to servers
A. servers b. routers c. network printers
Application Layer
A. not affected by EMI of RFI b. most expensive type of LAN cabling

21. 2 characteristics of clients in data networks
A. they initiate data exchanges b. they may upload data to servers
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. DB 60 b. Winchester 15-pin c. smart serial
A. larger address space b. data types and classes of service c. authentication and encryption

22. What is the primary purpose of ARP?
Resolve IPv4 addresses to MAC addresses.
Twisting of the cables
SSH
To enable a receiving host to forward the data to the appropriate application.

23. 3 features that allow TCP to realibly and accurately track the transmission of data
A. flow control b. session establishment c. numbering and sequencing
A. non-deterministic b. less overhead c. collisions exist
Supports error detection.
UDP

24. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
Flash
SMB
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

25. Where is the IOS file stored at?
Identify the device that allows local network computers to communicate w/ devices in other networks.
Flash
A default gateway (router).
Identify processes or services that are communicating with end devices.

26. What are key considering factors when grouping hosts into common networks?
A. servers b. routers c. network printers
UDP
Ctrl + Shift + 6
A. purpose b. geographic location c. ownership

27. What is a component of a routing table entry?
Next-Hop Address
0 to 1023
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. it has centralized administration b. security is easier to enforce

28. 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
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
Network
Router(config)# hostname Costas

29. How many bits make up an IPv4 address?
Network Access
32 bits
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. replace a switch w/ a router b. subnet the new networks

30. What is the primary function of encapsulating packets into frames?
A. servers b. routers c. network printers
A. minimizing of collisions b. division into broadcast domains
No collisions will occur on this link.
To facilitate the entry and exit of data on media.

31. What method of signal transmission uses radio waves to carry signals?
80 (HTTP)
Wireless
A. MTA b. SMTP
A. replace a switch w/ a router b. subnet the new networks

32. What is the role of the OSI Application Layer?
A. copper UTP b. optical fiber
Network portion
The destination host address.
It provides interface between applications on either end of the network.

33. 2 things that will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away
Create signals that represent the bits in each frame for the media.
A. the router will discard the packet b. the router will send a time exceeded message to the source host
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

34. At which layers of the OSI model does ethernet operate?
A. physical layer b. DLL layer
It has expanded adressing capabilities.
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
TCP initializes the sequence numbers for the sessions.

35. There are 4 different hosts connected to a hub - media is being transfered between 2 of them but the other 2 will also like to transfer media. What must the latest hosts do to transfer the media?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Physical
It does not support encryption.
They must wait until the first hosts finish transfering the media.

36. 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
A. servers b. routers c. network printers
Source and Destination Ports
Rollover cable

37. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
OTDR
The physical address is added.
Flash
Network address

38. What are 2 commands used to view a host routing table?
A. goodput b. throughput c. bandwidth
255.255.255.0
A. netstat -r b. route PRINT
Router(config)# hostname Costas

39. What are 2 protocols for transfering web resources?
Destination is not contacted before a packet is sent.
Create signals that represent the bits in each frame for the media.
Source and Destination IP address
A. HTTP b. HTTPS

40. Which OSI model layer is responsible for regulating the flow of information from source to destination - reliably and accurately?
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. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
Transport
Logical Link Control sublayer

41. Statements that describe LAN
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
They must wait until the first hosts finish transfering the media.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
IP Protocol

42. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
IP is not properly installed
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 backbone cable.
A. next-hop b. metric/interface c. destination network address

43. What is a drawback of the CSMA/CD access method?
Source Port
Collisions can decrease network performance.
Static
UDP

44. 3 common problems w/ a large network
A. performance degradation b. security issues c. host identification
A. goodput b. throughput c. bandwidth
A. application b. services
Console

45. 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
172.16.192.160
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. application b. presentation c. session d. transmision e. network f. data link g. physical

46. What is the primary rope of the physical layer in transmitting data?
Create signals that represent the bits in each frame for the media.
Rollover cable
UTP
A. the router will discard the packet b. the router will send a time exceeded message to the source host

47. statements of IP adressing
It provides interface between applications on either end of the network.
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
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
A physical topology.

48. Intermediary devices used to implement security between networks
A. router b. firewall
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
It does not support encryption.
Twisting of the cables

49. What is a protocol that provides connectionless network layer services?
2046
IP Protocol
A. low overhead b. connectionless
Source and Destination IP address

50. Which device is used to create or divide broadcast domains?
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. media sharing b. logical topology
Router
A. application b. services