Test your basic knowledge |

CCNA

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. Why is EIGRP considered a Hybrid routing protocol?
Anycast
It combines the advantages of Link-State and Distance vector routing protocols.
Convergence
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.

2. The advantages of VLSM
Multiple virtual interfaces that are associated with one physical interface
Maximizing address efficiency - organization - summarization
Every 5 seconds
Distance Vector

3. What is a VLAN
Six equal cost paths
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Area Border Router
A group of end stations with a common set of requirements - independent of their physical location

4. What type of algorithm does RIP use?
30-50 seconds
RIPv2 and EIGRP
0
Distance Vector

5. What does a trunk do?

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6. Describe features of RIPv2
Every 10 Seconds
1
100Mb/s
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

7. Nonbackbone - internal routers are aware of what topology
Different Autonomous Systems
Only topology within their respective area.
One ACL per protocol - One ACL per direction - Once ACL per interface
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

8. How often are BPDU's sent?
A combination of Link-state and distance vector
View
Ever 2 seconds
Multiple virtual interfaces that are associated with one physical interface

9. For an adjacency to occur what do the routers have to agree on?
Distance Vector
Loopback
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Supports both unequal metric load balancing and equal metric balancing.

10. Classful Protocols summarize
By DLCI's
Automatically
IP
Each router builds a map of the network and determines the shortest path to every network.

11. What is the dead interval
A layer 3 switch or router
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
RIPv2 and EIGRP
1Gb/s

12. In Link state terminology - What is a link?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
A link is an interface on a router
Individual or group IP's

13. How are Frame Relay Circuits identified?

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14. Admin distance of a Static Route?
4 times the hello interval
1
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
32768

15. What does the DR do?
Unspecified
Layers 1 & 2
Updates all DROTHER Routers when a change occurs
4

16. Routing protocol is what?
Telnet connectivity - authentication and extended ACLs
A protocol on how to communicate with other routers
Null
To reduce OSPF traffic

17. What three types of IPv6 address types are there?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Only with Cisco IOS software release 12.3 (2) T
Unicast - Multicast - Anycast
The Diffusing Update Algorithm (DUAL)

18. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
16
Autonomous System
2^n-2
Aka Subnet mask

19. What are two statements that are true of IPv6 address representation?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
90
1
Determines the cost which is the bandwidth

20. How does the SPF determine the shortest path?
Cisco - ANSI - Q.933A
Determines the cost which is the bandwidth
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Multiple virtual interfaces that are associated with one physical interface

21. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
4
32768
R= Rip protocol; You can reach network 192.168.1.0 in two hops. The 120 is the admin distance and the 2 is the metric (hop). and it can be reached via the 10.1.1.2 network.
4 times the hello interval

22. Admin distance of RIPv2
Plaintext and MD5
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Each router builds a map of the network and determines the shortest path to every network.
120

23. How does an Extended ACL work?
Adjacency
Inter-VLAN routing
Every 30 minutes by default
Checks the source and destination address then permits or denies specific protocols

24. Exterior Gateway Protocols are designed for use between
Different Autonomous Systems
2^n-2
EIGRP - OSPF - RIP
IETF

25. What is the spilt horizon rule?
It is never useful to send information about a route back in the direction from which the original info came.
A permit statement
Individual or group IP's
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

26. What Layer does Frame Relay operate at?
Test Firsts/ Routes Second
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Layers 1 & 2

27. Describe features of RIPv1
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Area Border Router
Link-State

28. What type of algorithm does EIGRP use?
One ACL per protocol - One ACL per direction - Once ACL per interface
A permit statement
Advance Distance Vector
Susceptible to routing loops

29. What is the default Bridge priority?
Plaintext and MD5
32768
The Diffusing Update Algorithm (DUAL)
EIGRP - OSPF - RIP

30. Dynamic ACL's are dependent on what?
Telnet connectivity - authentication and extended ACLs
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Every 10 Seconds
Private: link local

31. Example of a Routed Protocol?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Loopback
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
IP

32. Break down the word Link-State

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33. What is prefix length?
TRUE
By DLCI's
4
Aka Subnet mask

34. How long is the dead interval
Packet Header
Every 30 Seconds
Advance Distance Vector
4 times the hello interval

35. An autonomous system could also be referred to as what?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
15.....16 hops and the interface is down
Bandwidth & Delay
Domain

36. Can you delete individual entries in a specific ACL?
Bandwidth & Delay
Supports both unequal metric load balancing and equal metric balancing.
110
Only with Cisco IOS software release 12.3 (2) T

37. Spanning-Tree cost of 19
1Gb/s
100Mb/s
1
Bandwidth & Delay

38. A router running EIGRP will store what?
A trunk
A combination of Link-state and distance vector
Adjacency
All backup routes for destinations.

39. The time delay for a router to match a network change?
Convergence
The inverse of a subnet mask.
TRUE
Every 5 seconds

40. Dynamic VLAN is what?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
MAC based
Between areas?
1Gb/s

41. An OSPF neighbor relationship can also be called what?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Autonomous System
90
Adjacency

42. How does an outbound ACL work?
The lower MAC address
Connects the different areas
Routes First/ Tests second
TRUE

43. What are the three LMI standards
Cisco - ANSI - Q.933A
RIPv2 and EIGRP
Not scalable - hard to maintain as the network grows
The inverse of a subnet mask.

44. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Port based

45. What is the default load balancing for RIP
Checks the source and destination address then permits or denies specific protocols
The inverse of a subnet mask.
4
1.) Enter the Routing Manually 2.) Use Dymamic Routing

46. Purpose of a Routing Protocol?
Routes First/ Tests second
Checks the source and destination address then permits or denies specific protocols
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Dijkstra's Algorithm

47. How often are LMI's sent out?
Anycast
Null
Every 10 Seconds
Distance Vector

48. Can a Router exchange routing information if they are using different Routing Protocols?
Maximizing address efficiency - organization - summarization
It combines the advantages of Link-State and Distance vector routing protocols.
No
Connects the different areas

49. What does the back bone router do?
By DLCI's
Domain
Dijkstra's Algorithm
Connects the different areas

50. Summarization of network information usually occurs where?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Updates all DROTHER Routers when a change occurs
Each router builds a map of the network and determines the shortest path to every network.
Between areas?