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. 3 characteristics of valid Ethernet Layer 2 addresses
A. netstat -r b. route PRINT
A. they segment broadcast domains b. they interconnect different network technologies c. each router interface requires a separate network or subnet
A. 48 binary bits in length b. physical addresses c. represented in a hexadecimal format
It uses support from the lower layers to distinguish between connections to the service.

2. What is a mechanism used by TCP to provide flow control as segments travel from source to destination?
Supports error detection.
Window Size
Resolve IPv4 addresses to MAC addresses.
A. they initiate data exchanges b. they may upload data to servers

3. Default Gateway is incorrect on the host - What is the impact on the communications?
The host can communicate w/ other hosts in the local network but is unable to communicate w/ hosts on the other networks.
Is used by the server to resolve names.
A. replace a switch w/ a router b. subnet the new networks
Rollover cable

4. What is a benefit of a WAN?
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
Time-to-live (TTL)
Host mobility
A. replace a switch w/ a router b. subnet the new networks

5. In business LANs - which connector is used w/ twisted-pair networking cable?
RJ-45
Console
A. MTA b. SMTP
Host2 sends a segment to Host1 with: ACK flag = 1 SYN flag = 1

6. After an ethernet collision - which device has priority to transmit data?
Source Port
Any device whose backoff timer expires first.
The destination host address.
A default gateway (router).

7. 2 common methods for settin a UTP ethernet port to MDI or MDIX?
Any device whose backoff timer expires first.
Binary ANDing
A. automatic detection and negotiating of MDI/MDIX operation of the port b. enabling the mechanism to electrically swap the transmit and receive pairs
It uses lasers as the light source.

8. 3 facts about the network portion of an IPv4 address
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. is identical for all hosts in a broadcast domain b. varies in length c. is used to forward packet
A. performance degradation b. security issues c. host identification
Next-Hop Address

9. What can be a problem that is reduced by adding end-to-end addressing?
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
0 to 1023
It reduces unnecessary broadcasts.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery

10. At which layer of the TCP/IP model does ethernet operate?
IP Protocol
A. it has centralized administration b. security is easier to enforce
Network Access
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry

11. If you have a full-duplex operational network - what can happen?
Identify processes or services that are communicating with end devices.
No collisions will occur on this link.
Host A
TCP initializes the sequence numbers for the sessions.

12. What layer encapsulates segments into packets?
Network Layer
Network Layer Packet
DNS
Minimal delays in data delivery.

13. What do you need to use for an initial configuration on a Cisco router?
A. identifies network layer protocol b. makes the connection w/ the upper layers c. insulates network layer protocols from changes in physical equipment
Console interface
Network Layer
Rollover cable

14. What is the primary purpose of Layer 4?
They must wait until the first hosts finish transfering the media.
A. hot keys b. context-sensitive c. command syntax check
Minimal delays in data delivery.
Identify processes or services that are communicating with end devices.

15. What are 3 properties of contention-based media access for a shared media?
It reduces unnecessary broadcasts.
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. non-deterministic b. less overhead c. collisions exist
Source and Destination Ports

16. What command can be used to determine if the router has experienced any input or output errors?
It uses support from the lower layers to distinguish between connections to the service.
A. receives emails from clients MUA b. uses SMTP to route email between servers c. passes email to MDA for final delivery
Show Interfaces
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

17. What can you identify when you examine the Network Layer header?
The destination host address.
It uses lasers as the light source.
Supports error detection.
TCP initializes the sequence numbers for the sessions.

18. What are 2 layers of the OSI model that have the same functions as the TCP/IP Network Application Layer?
OTDR
Router(config)# interface FastEthernet 0/1
Flash
A. Physical b. Data Link

19. What command is used to change the default name to 'Costas'?
Router(config)# hostname Costas
A. application b. presentation c. session d. transmision e. network f. data link g. physical
A. low overhead b. connectionless
A. addressing b. error detection c. frame delimiting

20. What are 2 protocols for transfering web resources?
The packets will be delivered and reassembled at destination.
It does not support encryption.
8
A. HTTP b. HTTPS

21. In a connectionless system - What is correct?
The physical address is added.
Destination is not contacted before a packet is sent.
Application Layer
A. performance degradation b. security issues c. host identification

22. 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)
Physical
To facilitate the entry and exit of data on media.
A. flow control b. session establishment c. numbering and sequencing

23. 3 features that allow TCP to realibly and accurately track the transmission of data
A. application b. services
A. flow control b. session establishment c. numbering and sequencing
Application Layer
A. the router will discard the packet b. the router will send a time exceeded message to the source host

24. What is the purpose of the TCP/IP Network Application Layer?
Network Media Control
A. addressing b. error detection c. frame delimiting
It does not support encryption.
Supports error detection.

25. What statements describe the logical token-passing topology?
A. they initiate data exchanges b. they may upload data to servers
A. computers are allowed to transmit data only when they posses a token b. electronic tokens are passes sequentially to each other
Collisions can decrease network performance.
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations

26. During a TCP session - if packets arrive out of order - what will happen?
The packets will be delivered and reassembled at destination.
Signal loss can be experienced.
A backbone cable.
A. enable mode b. priviledge executive mode

27. What is PDU?
Network address
A. determine pathways for data b. retrieve and retransmit data signals c. manage data flows
Is a layer of specific encapsulation.
It provides interface between applications on either end of the network.

28. What is the primary rope of the physical layer in transmitting data?
Supports error detection.
Window Size
FTP
Create signals that represent the bits in each frame for the media.

29. Why is flow control used for TCP data transfer?
When connecting a host to a switch.
It uses lasers as the light source.
To prevent the receiver from being overwhelmed by incoming data.
2046

30. If you want to connect 4 hosts in a home network - what would be the best deviced to be used?
Switch
Source and Destination Ports
It reduces unnecessary broadcasts.
A. the router will discard the packet b. the router will send a time exceeded message to the source host

31. 2 features that make switches preferable to hubs
A. physical layer b. DLL layer
A. larger address space b. data types and classes of service c. authentication and encryption
A. minimizing of collisions b. division into broadcast domains
Host uses a default route to transfer data to host outside the local network when no other route to the destination exists.

32. 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?
They must wait until the first hosts finish transfering the media.
Signal loss can be experienced.
Destination is not contacted before a packet is sent.
A. addressing b. error detection c. frame delimiting

33. What causes crosstalk within cable pairs when using UTP?
The magnetic field around the adjacent pairs of wire.
A default gateway (router).
A. netstat -r b. route PRINT
Rollover cable

34. When destination network is not in the routing table - What are 2 actions the router might take?
Identify processes or services that are communicating with end devices.
Fiber
A. router discards the packet b. router forwards the packet out the interface indicated in the route entry
Collisions can decrease network performance.

35. Network Protocols
Is used by the server to resolve names.
A. define structure of layer specific PDUs b. outline the functions necessary for communication between layers c. require layer dependent capsulations
DNS
Ctrl + Shift + 6

36. What method of signal transmission uses radio waves to carry signals?
A physical topology.
A. media sharing b. logical topology
The address of the router that the host will use to 'get to the other side'.
Wireless

37. What characteristic of an UTP helps reduce interference?
Binary ANDing
Twisting of the cables
A. copper UTP b. optical fiber
The MAC protocol can be very simple.

38. 3 features of IPv6
A. larger address space b. data types and classes of service c. authentication and encryption
255.255.255.0
Window Size
Logical Link Control sublayer

39. What type of network cable is used between a terminal and a console port?
As the commands are entered.
255.255.255.224
Rollover cable
TCP initializes the sequence numbers for the sessions.

40. If there is a graphic representation of a company network wiring and equipment - What is this called?
A. minimizing of collisions b. division into broadcast domains
Hosts return to listen-before-transmit mode.
A physical topology.
Flash

41. With TCP/IP encapsulation - which range of port numbers identifies all well known applications?
Time-to-live (TTL)
It is used for timing synchronization w/ alternating patterns of 1s and 0s.
A. enable mode b. priviledge executive mode
0 to 1023

42. What is a characteristic of a single-mode fiber-optic cable?
It uses lasers as the light source.
UDP
It reduces unnecessary broadcasts.
A. Cat5 UTP b. Cat6 UTP

43. If the router says: 'Switch-East4#' What identifies the CLI mode represented?
A. enable mode b. priviledge executive mode
The magnetic field around the adjacent pairs of wire.
Identify the device that allows local network computers to communicate w/ devices in other networks.
When connecting a host to a switch.

44. What is a protocol that provides connectionless network layer services?
Application Layer
Window Size
IP Protocol
As the commands are entered.

45. What is the role of the OSI Application Layer?
IP Protocol
Network Layer
Destination is not contacted before a packet is sent.
It provides interface between applications on either end of the network.

46. What information is added during encapsulation at OSI Layer 3?
Rollover cable
Twisting of the cables
Source and Destination IP address
Router(config)# interface FastEthernet 0/1

47. During encapsulation - what happens in the Data Link Layer?
A. DB 60 b. Winchester 15-pin c. smart serial
Application Layer
Resolve IPv4 addresses to MAC addresses.
The physical address is added.

48. What can get you to an outside network?
A default gateway (router).
Is a layer of specific encapsulation.
Twisting of the cables
A. performance degradation b. security issues c. host identification

49. 2 functions of encapsulation
The packets will be delivered and reassembled at destination.
When connecting a host to a switch.
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. next-hop b. metric/interface c. destination network address

50. 3 primary functions of the data link layer encapsulation
Switch
Collisions can decrease network performance.
A. addressing b. error detection c. frame delimiting
As the commands are entered.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

CCNA - 2

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests