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. The no auto-summary command does what?
RIPv2 & EIGRP
The update only includes info about the route change
Forces protocols to behave as if they were classless
Advance Distance Vector

2. Explain how routing loops occur with RIP?
All backup routes for destinations.
...
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Area Border Router

3. With ACL's where does the router extract information
1
Every 5 seconds
Packet Header
The Root bridge is the bridge with the lowest bridge ID

4. For an adjacency to occur what do the routers have to agree on?
The Diffusing Update Algorithm (DUAL)
A link is an interface on a router
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Maximizing address efficiency - organization - summarization

5. What type of algorithm does OSPF & IS-IS use?
To reduce OSPF traffic
Link-State
1.) Enter the Routing Manually 2.) Use Dymamic Routing
One ACL per protocol - One ACL per direction - Once ACL per interface

6. What are non designated routers called?
A group of end stations with a common set of requirements - independent of their physical location
All backup routes for destinations.
DROTHER
Only topology within their respective area.

7. How often does EIGRP send hellow packets?
One ACL per protocol - One ACL per direction - Once ACL per interface
MAC based
Every 5 seconds
Individual or group IP's

8. How do you apply the ACL to an interface
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Layers 1 & 2
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

9. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
The Root bridge is the bridge with the lowest bridge ID
Packet Header
30-50 seconds

10. Spanning-Tree coast of 4
0
IP
1Gb/s
Checks the source and destination address then permits or denies specific protocols

11. What is OSPF multicast address?
224.0.0.5
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
A permit statement
A group of end stations with a common set of requirements - independent of their physical location

12. What type of algorithm does EIGRP use?
All backup routes for destinations.
The lower MAC address
Advance Distance Vector
Distance Vector

13. How do you configure OSPF
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Private: link local
Routes First/ Tests second
1

14. Dynamic ACL's are dependent on what?
DROTHER
Because a loopback interface is always active and cannot be in a down state like a real interface can.
MAC based
Telnet connectivity - authentication and extended ACLs

15. Example of a Routing Protocol?
Bandwidth & Delay
EIGRP - OSPF - RIP
Six equal cost paths
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

16. What type of algorithm does RIP use?
A link is an interface on a router
Distance Vector
Bandwidth & Delay
By DLCI's

17. What is one to nearest
1
Anycast
Between areas?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.

18. Admin distance of OSPF?
To select the best path to the destination
Susceptible to routing loops
110
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

19. What is the dead interval
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Only with Cisco IOS software release 12.3 (2) T
0
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface

20. What is Frame Relay?
Forces protocols to behave as if they were classless
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.
0
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

21. Benefits of OSPF?
0
100Mb/s
Anycast
Scalable and fast convergence

22. With OSPF - what must be defined?
Link-State
Multicast
A backbone area...Also known as Area 0
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

23. Problem with static routes
A link is an interface on a router
Port based
Area Border Router
Not scalable - hard to maintain as the network grows

24. Every ACL will need what?
A permit statement
Different Autonomous Systems
A group of end stations with a common set of requirements - independent of their physical location
Advance Distance Vector

25. When do you use Access-Class
Loopback
Match on all routers or it will not work
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
For line vty 0 4

26. What is the spilt horizon rule?
Convergence
Make sure you are in interface mode - then use this command ip access-group 1 out/in
It is never useful to send information about a route back in the direction from which the original info came.
Reduce the link-state database and routing table

27. In Link state terminology - What is a link?
A link is an interface on a router
90
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface
10Mb/s

28. Example of a Routed Protocol?
IP
The update only includes info about the route change
Layers 1 & 2
Telnet connectivity - authentication and extended ACLs

29. What does EIGRP use to calculate it's metric?
Loopback
Bandwidth & Delay
A protocol on how to communicate with other routers
The information regarding that link. This can include the router's IP address - the type of network - the cost of the link - and if there are any neighboring routers on that link.

30. An OSPF neighbor relationship can also be called what?
Adjacency
RIPv2 & EIGRP
TRUE
View

31. VTP Server Mode does what?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

32. Admin distance of RIPv2
Supports both unequal metric load balancing and equal metric balancing.
Different Autonomous Systems
120
Autonomous System

33. What two things need to be done to enable dynamic routing?
Select the routing protocol - then specify the network.
MD5 and you have to enable it if you want to use it.
Area Border Router
Every 30 minutes by default

34. How do you configure a sub interface?
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface
2^n
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Multicast

35. How many hops are allowed with RIP?
MAC based
Packets are processed before they are routed to an outbound interface.
Null
15.....16 hops and the interface is down

36. How often are OSPF hello packets sent out?
4
Domain
Port based
Every 10 seconds

37. Explain OSPF

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

38. What is needed to pass traffic from one VLAN to another?
A layer 3 switch or router
One ACL per protocol - One ACL per direction - Once ACL per interface
TRUE
Unspecified

39. What do you need to do if there are discontigous networks with EIGRP?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
RIPv2 & EIGRP
Automatically
Disable auto summarization

40. Exterior Gateway Protocols are designed for use between
Different Autonomous Systems
The Diffusing Update Algorithm (DUAL)
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Domain

41. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Plaintext and MD5
Propagation of partial updates that are sent only to those routers that the changes affect.
A combination of Link-state and distance vector
TRUE

42. What is the purpose of LMI
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
The lower MAC address
Plaintext and MD5
It is the signaling standard that maintains connection and statues between the DCE and DTE

43. For a VLAN to span across multiple switches What is required?
Plaintext and MD5
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
A trunk
All backup routes for destinations.

44. What does the DR do?
90
EIGRP - OSPF - RIP
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Updates all DROTHER Routers when a change occurs

45. When placing ACL's in the Network...Do what?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

46. What do area's do?
A trunk
A permit statement
Reduce the link-state database and routing table
4

47. By default OSPF uses what type of authentication?
Test Firsts/ Routes Second
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Null
15.....16 hops and the interface is down

48. OSPF routes packets within a single?
Autonomous System
It is never useful to send information about a route back in the direction from which the original info came.
The Diffusing Update Algorithm (DUAL)
Plaintext and MD5

49. What algorithm does EIGRP use?
The Diffusing Update Algorithm (DUAL)
Every 30 Seconds
Each router builds a map of the network and determines the shortest path to every network.
Make sure you are in interface mode - then use this command ip access-group 1 out/in

50. The AS number must what?
Match on all routers or it will not work
Associating the network address with a local DLCI.
Advertised Distance & Feasible distance
TRUE