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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. Can you delete individual entries in a specific ACL?
0
4 times the hello interval
Ever 2 seconds
Only with Cisco IOS software release 12.3 (2) T

2. OSPF will elect a what?
Automatically
A backbone area...Also known as Area 0
The inverse of a subnet mask.
Designated Router (DR) and a Back-up designated Router (BDR)

3. Classful Protocols summarize
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Automatically
A group of end stations with a common set of requirements - independent of their physical location
Cisco - ANSI - Q.933A

4. In regards to troubleshooting OSPF what should you check?
For line vty 0 4
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Only with Cisco IOS software release 12.3 (2) T
MD5 and you have to enable it if you want to use it.

5. VTP Transparent Mode does what?

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6. What are the two ways routers can learn about the destination information?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
A layer 3 switch or router
Multiple virtual interfaces that are associated with one physical interface
Inter-VLAN routing

7. How often are OSPF hello packets sent out?
Propagation of partial updates that are sent only to those routers that the changes affect.
Every 10 seconds
No
Between areas?

8. Static VLAN is what?
Dijkstra's Algorithm
Port based
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Domain

9. Advance Distance Vector or Hybrid uses what?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
A combination of Link-state and distance vector
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Not scalable - hard to maintain as the network grows

10. In frame relay What is Inverse Arp
Every 10 seconds
The Diffusing Update Algorithm (DUAL)
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Associating the network address with a local DLCI.

11. What does bounded refer to?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
224.0.0.10
Propagation of partial updates that are sent only to those routers that the changes affect.
Convergence

12. How often are periodic updates sent out via RIP
Every 30 Seconds
120
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

13. What are the three LMI standards
Data Link Connection Identifier
Cisco - ANSI - Q.933A
A permit statement
Susceptible to routing loops

14. Problem with static routes
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Not scalable - hard to maintain as the network grows
Determines the cost which is the bandwidth

15. What are non designated routers called?
A link is an interface on a router
Determines the cost which is the bandwidth
DROTHER
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

16. What Layer does Frame Relay operate at?
Layers 1 & 2
Private: link local
Connects the different areas
Scalable and fast convergence

17. Why is it important to have a loopback address when using OSPF?
By DLCI's
Because a loopback interface is always active and cannot be in a down state like a real interface can.
32768
Advertised Distance & Feasible distance

18. Nonbackbone - internal routers are aware of what topology
It is never useful to send information about a route back in the direction from which the original info came.
Only topology within their respective area.
All backup routes for destinations.
Supports both unequal metric load balancing and equal metric balancing.

19. What is the default Bridge priority?
Domain
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
It is never useful to send information about a route back in the direction from which the original info came.
32768

20. Describe features of RIPv2
Every 10 Seconds
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Loopback
Only topology within their respective area.

21. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
A group of end stations with a common set of requirements - independent of their physical location
Associating the network address with a local DLCI.
No
TRUE

22. How does EIGRP work with regards to Load Balancing
Supports both unequal metric load balancing and equal metric balancing.
Test Firsts/ Routes Second
Advertised Distance & Feasible distance
4

23. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
Six equal cost paths
The lower MAC 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.
110

24. What does DLCI stand for?
Not scalable - hard to maintain as the network grows
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
10Mb/s
Data Link Connection Identifier

25. What two classless protocols act classful by default?
RIPv2 & EIGRP
Aka Subnet mask
Anycast
120

26. How does an outbound ACL work?
10Mb/s
Routes First/ Tests second
4 times the hello interval
View

27. Formula for determining Subnets
A trunk
2^n
Every 10 Seconds
Each router builds a map of the network and determines the shortest path to every network.

28. With ACL's where does the router extract information
Bandwidth & Delay
Packet Header
Susceptible to routing loops
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

29. A router running EIGRP will store what?
Multiple virtual interfaces that are associated with one physical interface
A permit statement
Multicast
All backup routes for destinations.

30. What is an Autonomous System?
A combination of Link-state and distance vector
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Convergence
...

31. Admin distance of OSPF?
4
110
A combination of Link-state and distance vector
Not scalable - hard to maintain as the network grows

32. An autonomous system could also be referred to as what?
TRUE
Domain
A link is an interface on a router
IETF

33. Spanning-Tree coast of 4
Private: link local
Anycast
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
1Gb/s

34. Wildcard masks filter

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35. In regards to ACL's What are the three protocols?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
One ACL per protocol - One ACL per direction - Once ACL per 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
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

36. Purpose of a Routing Protocol?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Automatically
For line vty 0 4
Anycast

37. The time delay for a router to match a network change?
Susceptible to routing loops
30-50 seconds
Every 30 Seconds
Convergence

38. Why is this done?
Supports both unequal metric load balancing and equal metric balancing.
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Convergence
To reduce OSPF traffic

39. What do you need to do if there are discontigous networks with EIGRP?
Inter-VLAN routing
Domain
Disable auto summarization
EIGRP - OSPF - RIP

40. What type of algorithm does OSPF & IS-IS use?
0
Link-State
It is never useful to send information about a route back in the direction from which the original info came.
Associating the network address with a local DLCI.

41. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
TRUE
Checks the source address and then permits or denies the entire protocol suite
1Gb/s
Automatically

42. How is the root bridge determined?
The Root bridge is the bridge with the lowest bridge ID
Every 30 Seconds
15.....16 hops and the interface is down
A protocol on how to communicate with other routers

43. What is ::1
4 times the hello interval
Connects the different areas
It is the signaling standard that maintains connection and statues between the DCE and DTE
Loopback

44. What is ::
1Gb/s
Unspecified
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
0

45. What is the default load balancing for RIP
It combines the advantages of Link-State and Distance vector routing protocols.
4
Every 10 Seconds
1.) Enter the Routing Manually 2.) Use Dymamic Routing

46. When do you use Access-Class
Designated Router (DR) and a Back-up designated Router (BDR)
By DLCI's
For line vty 0 4
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.

47. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Checks the source address and then permits or denies the entire protocol suite
View
Every 10 seconds

48. Routers are used for what?
To select the best path to the destination
Every 30 Seconds
20 seconds: 10 missed BPDU's
224.0.0.5

49. What two things need to be done to enable dynamic routing?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Select the routing protocol - then specify the network.
Susceptible to routing loops
Between areas?

50. How does an Extended ACL work?
Every 5 seconds
A trunk
Anycast
Checks the source and destination address then permits or denies specific protocols