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. Given IP 172.16.134.64 and S/M 255.255.255.224 - this IP is an...?
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
Router(config)# hostname Costas
Network address
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format

2. 2 most commonly used media types in ethernet networks
Static
Destination is not contacted before a packet is sent.
A. copper UTP b. optical fiber
Ctrl + Shift + 6

3. What is the primary reason for developing IPv6?
A. HTTP b. HTTPS
A. performance degradation b. security issues c. host identification
When connecting a host to a switch.
It has expanded adressing capabilities.

4. What is a disadvantage of Telnet?
It does not support encryption.
The MAC protocol can be very simple.
No collisions will occur on this link.
Create signals that represent the bits in each frame for the media.

5. What is the primary function of encapsulating packets into frames?
A. goodput b. throughput c. bandwidth
A. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
To facilitate the entry and exit of data on media.
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

6. What is the purpose of the preamble in an ethernet frame?
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
RJ-45
It is used for timing synchronization w/ alternating patterns of 1s and 0s.

7. What is an effect of improperly applying a network cable connector?
Is a layer of specific encapsulation.
A. they initiate data exchanges b. they may upload data to servers
Signal loss can be experienced.
A. physical layer b. DLL layer

8. 2 characteristics of clients in data networks
A. they initiate data exchanges b. they may upload data to servers
A physical topology.
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
Hub

9. What are 2 commands used to view a host routing table?
A. netstat -r b. route PRINT
A. media sharing b. logical topology
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.
Identify processes or services that are communicating with end devices.

10. In business LANs - which connector is used w/ twisted-pair networking cable?
A. replace a switch w/ a router b. subnet the new networks
Ctrl + Shift + 6
RJ-45
A. Cat5 UTP b. Cat6 UTP

11. What event occurs during the 3-way handshake?
Collisions can decrease network performance.
It reduces unnecessary broadcasts.
TCP initializes the sequence numbers for the sessions.
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

12. What are 2 forms of application layer software?
A. hot keys b. context-sensitive c. command syntax check
A. application b. services
A. Physical b. Data Link
Application Layer

13. What are 3 pieces of info about a route contained in a routing table?
Hosts return to listen-before-transmit mode.
Rollover cable
A. next-hop b. metric/interface c. destination network address
Network Media Control

14. What subnet mask will an admin assign to the network address 172.30.1.0 if its possible to have 254 hosts?
255.255.255.0
It provides for the exchange of data over a common local media.
A. they initiate data exchanges b. they may upload data to servers
A. media sharing b. logical topology

15. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
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. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
Originate data flow.

16. What is a benefit of a WAN?
It provides interface between applications on either end of the network.
Time-to-live (TTL)
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Host mobility

17. 3 functions of the upper data link sublayer in the OSI model
Host mobility
Network portion
Flash
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

18. 2 functions of encapsulation
Twisting of the cables
A. Cat5 UTP b. Cat6 UTP
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. minimizing of collisions b. division into broadcast domains

19. What are 2 protocols for transfering web resources?
A. identifies the communicating applications b. identifies multiple conversations between the hosts
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
A. HTTP b. HTTPS
A physical topology.

20. What type of network cable is used between a terminal and a console port?
Static
Rollover cable
Minimal delays in data delivery.
MAC

21. What are 2 common characteristics associated w/ dynamic routing protocols?
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Logical Link Control sublayer
A. decentralized resources b. resource sharing w/o a dedicated server

22. What can be a problem that is reduced by adding end-to-end addressing?
It reduces unnecessary broadcasts.
A. low overhead b. connectionless
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
A. physical layer b. DLL layer

23. Host1 is in the process of setting up a TCP session with Host2. Host1 sent a SYN message to begin establishment - what happens next?
To facilitate the entry and exit of data on 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
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. media sharing b. logical topology

24. 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?
RJ-45
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. Cat5 UTP b. Cat6 UTP
2046

25. What information is added during encapsulation at OSI Layer 3?
A. flow control b. session establishment c. numbering and sequencing
Create signals that represent the bits in each frame for the media.
Source and Destination IP address
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

26. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
SSH
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
FTP
A. enable mode b. priviledge executive mode

27. Which device is used to create or divide broadcast domains?
IP is not properly installed
Router
Originate data flow.
Minimal delays in data delivery.

28. What do you need to use for an initial configuration on a Cisco router?
Console interface
80 (HTTP)
Network Layer
UDP

29. What characteristic of an UTP helps reduce interference?
Identify the device that allows local network computers to communicate w/ devices in other networks.
Twisting of the cables
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Resolve IPv4 addresses to MAC addresses.

30. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
It reduces unnecessary broadcasts.
To prevent the receiver from being overwhelmed by incoming data.
OTDR
SMB

31. What is a characteristic of a logical point-to-point topology?
The MAC protocol can be very simple.
A. they initiate data exchanges b. they may upload data to servers
FTP
Resolve IPv4 addresses to MAC addresses.

32. Where is the IOS file stored at?
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
Next-Hop Address
A. goodput b. throughput c. bandwidth

33. At which layer of the TCP/IP model does ethernet operate?
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. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
A. application b. services
Network Access

34. What would be the response displayed after pinging 127.0.0.1 and there is a 0 packet transmission?
A. copper UTP b. optical fiber
Hub
The packets will be delivered and reassembled at destination.
IP is not properly installed

35. In a connectionless system - What is correct?
Destination is not contacted before a packet is sent.
It has expanded adressing capabilities.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. application b. presentation c. session d. transmision e. network f. data link g. physical

36. Statements that describe LAN
Network address
FTP
The address of the router that the host will use to 'get to the other side'.
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

37. A company is planning to subnet a network w/ 27 hosts. What would be the subnet mask used for this?
A. flow control b. session establishment c. numbering and sequencing
A. they initiate data exchanges b. they may upload data to servers
255.255.255.224
Network Access

38. When destination network is not in the routing table - What are 2 actions the router might take?
It reduces unnecessary broadcasts.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Create signals that represent the bits in each frame for the media.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet

39. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
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. consumes network bandwidth b. increases overhead on network c. interrupts other host functions
0 to 1023
Host A

40. What does the IEEE 802.2 standard represent in Ethernet technologies?
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. DNS b. SMTP c. POP
Fiber
Logical Link Control sublayer

41. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
A default gateway (router).
Binary ANDing
Hub
A. application b. presentation c. session d. transmision e. network f. data link g. physical

42. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
UTP
172.16.192.160
No collisions will occur on this link.
The physical address is added.

43. 3 statements about routes and their use
Host mobility
80 (HTTP)
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. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long

44. What are key considering factors when grouping hosts into common networks?
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. purpose b. geographic location c. ownership
No collisions will occur on this link.
Network Media Control

45. What is the primary purpose of ARP?
Static
It has expanded adressing capabilities.
Ctrl + Shift + 6
Resolve IPv4 addresses to MAC addresses.

46. When do changes take effect in a Cisco router?
Router(config)# interface FastEthernet 0/1
As the commands are entered.
A. non-deterministic b. less overhead c. collisions exist
Binary ANDing

47. There are too many broadcasts on switches - what can be done?
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. replace a switch w/ a router b. subnet the new networks
80 (HTTP)
It uses lasers as the light source.

48. If there is a graphic representation of a company network wiring and equipment - What is this called?
8
A physical topology.
255.255.255.0
TCP initializes the sequence numbers for the sessions.

49. An admin needs to keep contents private - which access method should he use?
To enable a receiving host to forward the data to the appropriate application.
A. performance degradation b. security issues c. host identification
SSH
172.16.192.160

50. statements of IP adressing
Ctrl + Shift + 6
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. DNS b. SMTP c. POP
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet