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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. If you have a small network w/ 3 computers...
The destination host address.
IP Protocol
A backbone cable.
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

2. What are 2 protocols for transfering web resources?
A. minimizing of collisions b. division into broadcast domains
A. HTTP b. HTTPS
Show Interfaces
Ctrl + Shift + 6

3. Which layer supplies services and allows user interface?
Application Layer
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
Is a layer of specific encapsulation.
255.255.255.224

4. An admin needs to keep contents private - which access method should he use?
They must wait until the first hosts finish transfering the media.
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
Source and Destination IP address
SSH

5. 2 characteristics of peer-2-peer
Transport
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. decentralized resources b. resource sharing w/o a dedicated server
Show Interfaces

6. What do the intermediary devices in the network do?
As the commands are entered.
A. the router will discard the packet b. the router will send a time exceeded message to the source host
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. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

7. To make a console connection from a comp to a Cisco router - what cable should be used?
A. perform degradation b. security issues c. host identification
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
It uses lasers as the light source.
Rollover cable

8. What application layer protocol is used to support file transfers between client and server?
A default gateway (router).
Transport
Router(config)# hostname Costas
FTP

9. An admin wants to evaluate all traffic in a network. To ensure that all packets are captured - what network device should be used?
A. it has centralized administration b. security is easier to enforce
Hub
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

10. What describes the purpose of default route?
To facilitate the entry and exit of data on media.
Network Layer
Hosts return to listen-before-transmit mode.
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

11. During a TCP session - if packets arrive out of order - what will happen?
2046
Originate data flow.
The packets will be delivered and reassembled at destination.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

12. Statements that describe LAN
2046
It uses support from the lower layers to distinguish between connections to the service.
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

13. What is the name of the application layer protocol used for file sharing on Microsoft Networks?
SMB
2046
It uses lasers as the light source.
Switch

14. When a network service fails - which port is most often used to access a router for management purposes?
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. it has centralized administration b. security is easier to enforce
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
Console

15. What are 2 commands used to view a host routing table?
A. netstat -r b. route PRINT
A. performance degradation b. security issues c. host identification
Rollover cable
Static

16. What is a component of a routing table entry?
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
Next-Hop Address
A. media sharing b. logical topology
Resolve IPv4 addresses to MAC addresses.

17. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
A. replace a switch w/ a router b. subnet the new networks
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
0 to 1023
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

18. Which characteristics describe fiber optic cable?
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)
Static
A. not affected by EMI of RFI b. most expensive type of LAN cabling
A. MTA b. SMTP

19. If there is a graphic representation of a company network wiring and equipment - What is this called?
A physical topology.
Network Media Control
255.255.255.0
Source Port

20. Which combination of keys can be used to interrupt a ping or traceroute process?
Application Layer
Ctrl + Shift + 6
A. router b. firewall
A. Physical b. Data Link

21. When destination network is not in the routing table - What are 2 actions the router might take?
It uses lasers as the light source.
A. application b. services
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. enable mode b. priviledge executive mode

22. 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. not affected by EMI of RFI b. most expensive type of LAN cabling
8
Wireless
Fiber

23. statements of IP adressing
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. decentralized resources b. resource sharing w/o a dedicated server
Switch
It is used for timing synchronization w/ alternating patterns of 1s and 0s.

24. 3 features of IPv6
A. larger address space b. data types and classes of service c. authentication and encryption
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. decentralized resources b. resource sharing w/o a dedicated server
The address of the router that the host will use to 'get to the other side'.

25. In a connectionless system - What is correct?
Network portion
Destination is not contacted before a packet is sent.
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
A. physical layer b. DLL layer

26. What is a characteristic of a single-mode fiber-optic cable?
It provides for the exchange of data over a common local media.
Hosts return to listen-before-transmit mode.
It uses lasers as the light source.
MAC

27. What is a disadvantage of Telnet?
It does not support encryption.
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
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
Transport

28. Why are port numbers included in the TCP header of a segment?
Minimal delays in data delivery.
A. copper UTP b. optical fiber
A. Cat5 UTP b. Cat6 UTP
To enable a receiving host to forward the data to the appropriate application.

29. In business LANs - which connector is used w/ twisted-pair networking cable?
80 (HTTP)
A. non-deterministic b. less overhead c. collisions exist
RJ-45
Physical

30. During encapsulation - what happens in the Data Link Layer?
Next-Hop Address
Network Access
The physical address is added.
A. perform degradation b. security issues c. host identification

31. What are 2 forms of application layer software?
A. application b. services
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. MTA b. SMTP
A. netstat -r b. route PRINT

32. At which layers of the OSI model does ethernet operate?
A. netstat -r b. route PRINT
A. physical layer b. DLL layer
Physical
Router(config)# hostname Costas

33. 3 facts about the network portion of an IPv4 address
Any device whose backoff timer expires first.
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
Physical

34. 3 features that allow TCP to realibly and accurately track the transmission of data
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
A. flow control b. session establishment c. numbering and sequencing
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. 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

35. An admin needs a media that can run up to 100m in legth. Which type of media would be best?
UTP
Supports error detection.
Router(config)# interface FastEthernet 0/1
A. HTTP b. HTTPS

36. 2 characteristics of clients in data networks
Signal loss can be experienced.
Time-to-live (TTL)
DNS
A. they initiate data exchanges b. they may upload data to servers

37. Which OSI layer is responsible for binary transmission - cable specification - and physical aspects of network communication?
SSH
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Physical

38. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Host A
A. the router will discard the packet b. the router will send a time exceeded message to the source host
A. addressing b. error detection c. frame delimiting
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs

39. What is an automated service that matches resource names w/ required IP addresses?
DNS
Is used by the server to resolve names.
Rollover cable
A. media sharing b. logical topology

40. When is a straight-through cable used in a network?
A. MTA b. SMTP
When connecting a host to a switch.
A. flow control b. session establishment c. numbering and sequencing
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows

41. What layer encapsulates segments into packets?
A. larger address space b. data types and classes of service c. authentication and encryption
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. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Network Layer

42. Where is the IOS file stored at?
Console interface
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. application b. services
Flash

43. 3 primary functions of the data link layer encapsulation
A. addressing b. error detection c. frame delimiting
Flash
A. minimizing of collisions b. division into broadcast domains
A. located in a single geographical area b. administered by a single organization c. each end is connected to a Telecommunication Service Provider (TSP)

44. 2 most commonly used media types in ethernet networks
A. HTTP b. HTTPS
A. copper UTP b. optical fiber
Network Layer Packet
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

45. What type of network cable is used between a terminal and a console port?
The MAC protocol can be very simple.
Rollover cable
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
Network Layer

46. If you have a full-duplex operational network - what can happen?
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
No collisions will occur on this link.
0 to 1023
A. it has centralized administration b. security is easier to enforce

47. In an IPv4 environment - what information is used by the router to forward data packets from one interface of a router to another?
Destination Network Address
A. provide routers w/ up-to-date routing tables b. consume bandwidth to exchange route info
A. show startup-config b. show running-config
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

48. What are 3 properties of contention-based media access for a shared media?
A. non-deterministic b. less overhead c. collisions exist
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
It does not support encryption.
A. decentralized resources b. resource sharing w/o a dedicated server

49. What info is found in the TCP and UDP header info?
Network Access
A. greater distances per cable run b. limited susceptibility to EMI/RFI c. greater bandwidth potential
A. geographic scope of the network b. physical layer implementation c. number of hosts to be interconnected
Source and Destination Ports

50. When a device is moved from one network to the other...?
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
Source Port
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