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. What are 2 email components used to forward mail between servers?
Host mobility
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. MTA b. SMTP
Rollover cable

2. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Minimal delays in data delivery.
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
IP Protocol
A. application b. services

3. Default Gateway is incorrect on the host - What is the impact on the communications?
Network Access
Supports error detection.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
A. purpose b. geographic location c. ownership

4. When do changes take effect in a Cisco router?
A. low overhead b. connectionless
Destination Network Address
As the commands are entered.
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

5. If you have an Ethernet Frame w/ a Header - Data and a Trailer. It is a...?
It provides for the exchange of data over a common local media.
IP is not properly installed
Network Layer Packet
A random delay helps prevent the stations from experiencing another collision during transmission.

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

7. 3 characteristics of valid Ethernet Layer 2 addresses
Flash
A. they initiate data exchanges b. they may upload data to servers
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

8. What do you need to use for an initial configuration on a Cisco router?
A. not affected by EMI of RFI b. most expensive type of LAN cabling
MAC
The packets will be delivered and reassembled at destination.
Console interface

9. What type of network cable is used between a terminal and a console port?
Rollover cable
A. purpose b. geographic location c. ownership
A. it has centralized administration b. security is easier to enforce
Logical Link Control sublayer

10. 3 statements of media acess control
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. 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. larger address space b. data types and classes of service c. authentication and encryption
FTP

11. At which layers of the OSI model does ethernet operate?
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. physical layer b. DLL layer
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
UTP

12. 3 primary functions of the data link layer encapsulation
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. addressing b. error detection c. frame delimiting
172.16.192.160
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

13. What type of routing uses information that is manually entered into the routing table?
Static
255.255.255.224
A. larger address space b. data types and classes of service c. authentication and encryption
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

14. What do end devices do?
SSH
A physical topology.
A. not affected by EMI of RFI b. most expensive type of LAN cabling
Originate data flow.

15. 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?
172.16.192.160
Host mobility
To prevent the receiver from being overwhelmed by incoming data.
A. identifies the communicating applications b. identifies multiple conversations between the hosts

16. What process routers use to determine the subnet network address w/ an IP address and a subnet mask?
Binary ANDing
OTDR
UDP
Transport

17. What are 2 common characteristics associated w/ dynamic routing protocols?
Rollover cable
A. router b. firewall
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Is a layer of specific encapsulation.

18. Intermediary devices used to implement security between networks
A. router b. firewall
Fiber
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
Collisions can decrease network performance.

19. On a ethernet segment - why do hosts that experience a collision use a random delay before attempting to transmit?
Source and Destination IP address
A random delay helps prevent the stations from experiencing another collision during transmission.
It provides interface between applications on either end of the network.
A. addressing b. error detection c. frame delimiting

20. What are key considering factors when grouping hosts into common networks?
A. purpose b. geographic location c. ownership
Physical
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Network address

21. What layer encapsulates segments into packets?
Rollover cable
Is used by the server to resolve names.
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
Network Layer

22. What is an effect of improperly applying a network cable connector?
RJ-45
Resolve IPv4 addresses to MAC addresses.
Signal loss can be experienced.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.

23. What is a default gateway address?

24. What is the purpose of the preamble in an ethernet frame?
A. decentralized resources b. resource sharing w/o a dedicated server
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. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
It is used for timing synchronization w/ alternating patterns of 1s and 0s.

25. Which IP packet field will prevent endless loops?
Network address
Time-to-live (TTL)
Destination Network Address
Static

26. When a network service fails - which port is most often used to access a router for management purposes?
IP is not properly installed
A backbone cable.
Console
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

27. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Console interface
Supports error detection.
The MAC protocol can be very simple.
Hub

28. Which type of cable is most often associated w/ fiber-optic cable?
A. replace a switch w/ a router b. subnet the new networks
OTDR
A backbone cable.
Source Port

29. 2 features that make switches preferable to hubs
A. minimizing of collisions b. division into broadcast domains
Identify the device that allows local network computers to communicate w/ devices in other networks.
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. not affected by EMI of RFI b. most expensive type of LAN cabling

30. If there is a graphic representation of a company network wiring and equipment - What is this called?
It has expanded adressing capabilities.
A physical topology.
A. minimizing of collisions b. division into broadcast domains
When connecting a host to a switch.

31. 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 default gateway (router).
80 (HTTP)
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
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

32. What are 3 properties of contention-based media access for a shared media?
A. non-deterministic b. less overhead c. collisions exist
TCP initializes the sequence numbers for the sessions.
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
No collisions will occur on this link.

33. What statements describe the logical token-passing topology?
It has expanded adressing capabilities.
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. services
32 bits

34. What are 2 forms of application layer software?
A. application b. services
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Network Access
A backbone cable.

35. Which transport layer protocol provides low overhead and is used for applications that do not require reliable data delivery?
A. router b. firewall
UDP
A. low overhead b. connectionless
A. addressing b. error detection c. frame delimiting

36. What is the role of MTA in handling email?
RJ-45
It uses lasers as the light source.
172.16.192.160
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

37. What is the primary function of encapsulating packets into frames?
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. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
Is a layer of specific encapsulation.
To facilitate the entry and exit of data on media.

38. In business LANs - which connector is used w/ twisted-pair networking cable?
A. non-deterministic b. less overhead c. collisions exist
A. replace a switch w/ a router b. subnet the new networks
RJ-45
Is used by the server to resolve names.

39. What method of signal transmission uses radio waves to carry signals?
Wireless
Rollover cable
It provides interface between applications on either end of the network.
Originate data flow.

40. What is a component of a routing table entry?
Next-Hop Address
FTP
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Network Media Control

41. What are 2 commands used to view a host routing table?
Is a layer of specific encapsulation.
Wireless
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
A. netstat -r b. route PRINT

42. What command will you use to place the router into the correct mode to configure an appropiate interface to connect a LAN?
Rollover cable
Router(config)# interface FastEthernet 0/1
255.255.255.0
A. identifies the communicating applications b. identifies multiple conversations between the hosts

43. What can be a problem that is reduced by adding end-to-end addressing?
Network address
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. larger address space b. data types and classes of service c. authentication and encryption
It reduces unnecessary broadcasts.

44. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
A. router b. firewall
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
No collisions will occur on this link.
A. enable mode b. priviledge executive mode

45. What characteristic of an UTP helps reduce interference?
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
Flash
A. application b. presentation c. session d. transmision e. network f. data link g. physical

46. If you have a full-duplex operational network - what can happen?
A. identifies the communicating applications b. identifies multiple conversations between the hosts
SSH
Network Media Control
No collisions will occur on this link.

47. What correctly describes a MAC address?
255.255.255.0
Logical Link Control sublayer
SMB
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

48. What is the primary purpose of Layer 4?
Twisting of the cables
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 layer b. DLL layer
Identify processes or services that are communicating with end devices.

49. Host1 is in the process of setting up a TCP session with Host2. Host1 sent a SYN message to begin establishment - what happens next?
Minimal delays in data delivery.
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. physical layer b. DLL layer
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1

50. An admin needs to keep contents private - which access method should he use?
SSH
Identify processes or services that are communicating with end devices.
A. Cat5 UTP b. Cat6 UTP
A. replace a switch w/ a router b. subnet the new networks