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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. When a network service fails - which port is most often used to access a router for management purposes?
Console
Network Access
As the commands are entered.
Minimal delays in data delivery.

2. What is a benefit of a WAN?
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
Next-Hop Address
When connecting a host to a switch.
Host mobility

3. 3 features of IPv6
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
Host A
A. larger address space b. data types and classes of service c. authentication and encryption
SSH

4. What is PDU?
172.16.192.160
Is a layer of specific encapsulation.
A. enable mode b. priviledge executive mode
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

5. What statements describe the logical token-passing topology?
32 bits
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
The physical address is added.
Create signals that represent the bits in each frame for the media.

6. 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. the router will discard the packet b. the router will send a time exceeded message to the source host
Application Layer
Console interface

7. In a connectionless system - What is correct?
A. DNS b. SMTP c. POP
Destination is not contacted before a packet is sent.
Logical Link Control sublayer
A. performance degradation b. security issues c. host identification

8. 3 protocols that operate in the application layer
A. netstat -r b. route PRINT
Destination Network Address
A. DNS b. SMTP c. POP
A. application b. services

9. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
A. HTTP b. HTTPS
A random delay helps prevent the stations from experiencing another collision during transmission.
Switch
SMB

10. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Console
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. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
A. perform degradation b. security issues c. host identification

11. 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. enable mode b. priviledge executive mode
80 (HTTP)
It has expanded adressing capabilities.
A. MTA b. SMTP

12. What are 2 common characteristics associated w/ dynamic routing protocols?
255.255.255.0
It provides interface between applications on either end of the network.
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
Any device whose backoff timer expires first.

13. What event occurs during the 3-way handshake?
It uses lasers as the light source.
Minimal delays in data delivery.
TCP initializes the sequence numbers for the sessions.
Twisting of the cables

14. What is a characteristic of a logical point-to-point topology?
The MAC protocol can be very simple.
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
0 to 1023
To prevent the receiver from being overwhelmed by incoming data.

15. What method of signal transmission uses radio waves to carry signals?
Wireless
A. servers b. routers c. network printers
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
UDP

16. What is the primary purpose of ARP?
A. Cat5 UTP b. Cat6 UTP
A. next-hop b. metric/interface c. destination network address
Resolve IPv4 addresses to MAC addresses.
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

17. If you have a small network w/ 3 computers...
A. decentralized resources b. resource sharing w/o a dedicated server
A. copied into RAM during system startup b. contains a 3 byte OUI c. is 6 bytes long
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. application b. services

18. What are 2 commands used to view a host routing table?
SMB
A. netstat -r b. route PRINT
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected

19. 3 statements about the role of routers in the network
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
When connecting a host to a switch.
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
A. performance degradation b. security issues c. host identification

20. 3 statements of media acess control
Show Interfaces
A. decentralized resources b. resource sharing w/o a dedicated server
Next-Hop Address
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

21. When a device is moved from one network to the other...?
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
Any device whose backoff timer expires first.
Fiber

22. A company is planning to subnet a network w/ 27 hosts. What would be the subnet mask used for this?
255.255.255.224
The physical address is added.
80 (HTTP)
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential

23. When a collision occurs using CSMA/CD - how do hosts w/ data to transmit respond after the backoff period expires?
Hosts return to listen-before-transmit mode.
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
RJ-45
UTP

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?
Console interface
A. copper UTP b. optical fiber
2046
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment

25. What can you identify when you examine the Network Layer header?
A. next-hop b. metric/interface c. destination network address
Signal loss can be experienced.
The destination host address.
They must wait until the first hosts finish transfering the media.

26. What are 2 protocols for transfering web resources?
The MAC protocol can be very simple.
The packets will be delivered and reassembled at destination.
Network
A. HTTP b. HTTPS

27. Host1 is in the process of setting up a TCP session with Host2. Host1 sent a SYN message to begin establishment - what happens next?
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
DNS
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other

28. 3 characteristics of valid Ethernet Layer 2 addresses
FTP
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
Wireless
Next-Hop Address

29. What is the primary funcion of the trailer in the Data Link Layer encapsulation?
Supports error detection.
Is used by the server to resolve names.
A. performance degradation b. security issues c. host identification
8

30. If there are potential electrical and/or electromagnetic hazards - what type of media is recommended for backbone cabling?
A. purpose b. geographic location c. ownership
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
Router(config)# interface FastEthernet 0/1
Fiber

31. 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?
RJ-45
Source Port
Originate data flow.
8

32. 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
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Identify processes or services that are communicating with end devices.
Collisions can decrease network performance.
A. the router will discard the packet b. the router will send a time exceeded message to the source host

33. What are 3 properties of contention-based media access for a shared media?
The magnetic field around the adjacent pairs of wire.
A. non-deterministic b. less overhead c. collisions exist
Rollover cable
Minimal delays in data delivery.

34. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
A. larger address space b. data types and classes of service c. authentication and encryption
80 (HTTP)
A. enable mode b. priviledge executive mode
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

35. What command can be used to determine if the router has experienced any input or output errors?
Twisting of the cables
Console
Show Interfaces
No collisions will occur on this link.

36. How does the application layer on a server process multiple client requests for services?
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
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
It uses support from the lower layers to distinguish between connections to the service.

37. What are 2 forms of application layer software?
Transport
A. application b. services
TCP initializes the sequence numbers for the sessions.
2046

38. What determines the method of media access control?
A. media sharing b. logical topology
A. servers b. routers c. network printers
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
It provides interface between applications on either end of the network.

39. 3 terms that define the forms of help available within the Cisco IOS
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
A. enable mode b. priviledge executive mode
A. hot keys b. context-sensitive c. command syntax check
A. decentralized resources b. resource sharing w/o a dedicated server

40. What is a protocol that provides connectionless network layer services?
IP Protocol
Router(config)# interface FastEthernet 0/1
Host A
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

41. 3 primary functions of the data link layer encapsulation
255.255.255.224
It does not support encryption.
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. addressing b. error detection c. frame delimiting

42. What characteristic of an UTP helps reduce interference?
A. not affected by EMI of RFI b. most expensive type of LAN cabling
Twisting of the cables
Fiber
Create signals that represent the bits in each frame for the media.

43. What layer encapsulates segments into packets?
The MAC protocol can be very simple.
Network Layer
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

44. What 2 type of cables would most commonly be used for new runs?
Binary ANDing
A. performance degradation b. security issues c. host identification
Network address
A. Cat5 UTP b. Cat6 UTP

45. statements of IP adressing
SMB
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
UTP
Rollover cable

46. What is the purpose of the TCP/IP Network Application Layer?
Network
Network Media Control
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
It has expanded adressing capabilities.

47. What makes fiber preferable to copper for interconnecting buildings?
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
Physical
A. MTA b. SMTP
IP is not properly installed

48. At which layer of the TCP/IP model does ethernet operate?
A default gateway (router).
It reduces unnecessary broadcasts.
Network Access
Fiber

49. If host A's DG is 10.0.0.1 and host B's DG is 10.0.0.2 - when the router's IP address is 10.0.0.1. Which one will go through?
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
SMB
Host A
A. copper UTP b. optical fiber

50. What do you need to use for an initial configuration on a Cisco router?
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
Console interface
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
Router